Leuze    KR10-480 NR:672048    感應(yīng)傳感器
Leuze    KT10-480 NR:673048    感應(yīng)傳感器
Leuze    SD2R40-750, Nr：67821007    感應(yīng)傳感器
Leuze    HRTL 96B M/C66.01.C1S-S12 NR.50116678    感應(yīng)傳感器
Leuze    HETL 96BM/66.01S-S12  NR.50108889    感應(yīng)傳感器
Leuze    ODSL  96K/V66-2300-S12    感應(yīng)傳感器Leuze    KR10-480 NR:672048    感應(yīng)傳感器
Leuze    DLSP 160 S  Nr.50021432    通訊模塊
Leuze    SD2T40-750, Nr：67821907    感應(yīng)傳感器
Leuze    MSI-S/R 549900    自動控制器
Leuze    MSI-SR4    自動控制器
Leuze    RK 72/4-200 L.2    
Leuze    PRK 85/4 10-30VDC Nr.50000599    感應(yīng)傳感器
Leuze    HRT 96K/R-1690-1200-25    感應(yīng)傳感器
Leuze    HRTL 8/66-350-S12,Nr:50102705    
Leuze    HRT 96K/P-1600-1200-41   Nr.50025133    感應(yīng)傳感器
Leuze    RK 85/4    感應(yīng)傳感器
Leuze    LS 72/4 E,6000， Nr： 50000223    感應(yīng)傳感器
Leuze    50110783 GS 04M/P-50-S8    感應(yīng)傳感器
Leuze    RT 96M/P-1474-800-42    感應(yīng)傳感器
Leuze    MSI-SR4 Nr.549986    自動控制器
Leuze    LS 72/2 SE,6000  Nr：50000219    感應(yīng)傳感器
Leuze    Nr：50115116    
Leuze    IPRK 95/44 L.2    感應(yīng)傳感器
Leuze    Nr.50029653  LS97/4 E.1    感應(yīng)傳感器
Leuze    549988 MSI-TR1    自動控制器
Leuze    PRK 3B/6.22    感應(yīng)傳感器
Leuze    Nr.50029652  LS97/2.8 SE.1    感應(yīng)傳感器
Leuze    PRK 18/4 L     50081254    感應(yīng)傳感器
Leuze    VS27/24    感應(yīng)傳感器
Leuze    LVSR 325K/P-402-S8 50081301    自動控制器
Leuze    AC-SCM6-BT    總線模塊Leuze    KR10-480 NR:672048    感應(yīng)傳感器
Leuze    AT 160-03  Nr.50024059    插頭

CE marked and UL/cUL Listed.
Hazardous Locations: Class I; Div 2; A, B, C, D.
Open board units: UL Recognized.
Shock and Vibration Immunity (in enclosure)
Mechanical Shock: 50g (3ms), 30g (11ms).
Random Vibration: 5g, (5-500Hz).
Ordering Information
◆ Models
ES2171-0000
Current outputs, two Cu ports, IP20 enclosure
ES2171-0010
Current outputs, two Cu ports, open board
(no IP20 enclosure)
ES2171-1000
Current outputs, Cu & fiber ports, IP20 enclosure
ES2171-1010
Current outputs, Cu & fiber ports, open board (no
IP20 enclosure)
◆ Accessories
Industrial Ethernet Switches
See Page 33.
Hardware Accessories and Power Supplies
See Page 34.
Software Support
See Page 36.
Example i2o peer-to-peer mapping configuration screen from 

input source module (ES215x model).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: EtherStax ® Series
– 30 –
Description
These EtherStax I/O units provide a rugged,
high-density, and high-speed solution to interface
analog output signals. Each unit provides 16
high-level analog voltage outputs to control
various industrial devices.
Typical applications include driving indicators,
display devices, and chart recorders. The outputs
can also control variable speed drives, solenoid
valves, motors, positioners and other actuators.
Another common use is for re-transmission of
analog signals to remote SCADA, PLC, or DCS
systems.
EtherStax units are built and tested for high reli-
ability and dependable performance in hostile
environments. Available in an aluminum enclo-
sure or as an open circuit board, both formats
stack vertically to maintain a very small footprint.
Output Ranges
±5V, ±10 V DC
Ethernet Communication
10/100Base-T(X) and 100Base-FX,
Automatic MDI/MDI-X on all copper ports,
Modbus TCP/IP or UDP/IP protocol
i2o peer-to-peer
Power Requirement
18 to 36V DC (redundancy-ready)
Approvals
CE, UL/cUL:
Zone 2, Class 1, Division 2, Groups ABCD
Key Features & Benefits
■ 16-channel high-density analog output
■ 3-way isolation and surge suppression
■ High-resolution 16-bit D/A
■ High-speed updates of less than
4 milliseconds for all channels
■ Built-in loop-back circuit verifies outputs
■ On-demand self-test verifies calibration
■ Web browser configuration
■ Peer-to-peer i2o communication output target
device for Model ES215x inputs
i2o Peer-to-Peer Messaging
With Acromag’s i2o technology, you can map
inputs from ES215x units to output channels
on an ES2172 module. Select updates based on
time or on a percent of range change (100mS or
0.1% resolution).
16 analog voltage outputs ◆ Modbus TCP/IP, UDP/IP, i2o® 

peer-to-peer communication
ES2172 Ethernet Analog Output Modules
Dual Power
Alarm Relay
PC w/HMI
PLC / DCS
Controller
Peer-to-Peer
Dual Ethernet Ports
10/100 Base-TX
and 100 Base-FX
Fiber-optic (optional)
N.O.
Voltage Output
8 Channels
Voltage Output
8 Channels
8B Interface
Voltage Output
16 Channels
ES2172
16 Voltage Outputs
E C C C C 00 01 02 03
C C C C C 04 05 06 07
E C C C C 00 01 02 03
C C C C C 04 05 06 07
Rear view
Open circuit board versions are also available.
Select from a dozen 8B output modules.
Interface to isolated 8B analog output modules.
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: EtherStax ® Series
– 31 –
Performance Specifications
◆ Analog Field Outputs
Output Channel Configuration
16 single-ended DC voltage outputs.
Output Ranges (per-channel basis)
±5V, ±10V DC (at ±1mA).
User-configured on a per-channel basis.
Output Impedance
1 ohm maximum.
Output Resolution and Accuracy
Resolution (±10V): 16-bit maximum, 0.00166%.
Resolution (±5V): 15-bit maximum, 0.00305%.
Accuracy: Better than 0.05% of range.
Output Response Time
1 channel: Less than 3mS, typical.
16 channels: Less than 4mS, typical.
◆ External 8B Output Modules
See Bulletin 8400-479 for details.
◆ Local Alarm Output
Configuration
Failsafe or non-failsafe (user-configurable) relay trips 

on
power or link-loss failure.
Type
SPST-NO, 1 Form A, Class I, Division II approved.
Rating
3A @ 24V DC/250V AC, 100,000 cycles general.
2A @ 24V DC/250V AC, Hazardous locations.
Maximum Switching Voltage and Power
250V AC / 750VA, 125V DC / 90W.
◆ Ethernet Interface
Internal Switch or Hub/Repeater
Dual-port Ethernet switch. User-configurable as a true
switch (default mode) or low-latency hub.
Network Connector [10/100 Base-T(X) Copper]
One or two 8-pin RJ-45 connectors. Automatic MDI/
MDI-X. 100m communication distance.
Network Connector (100 Base-FX Fiber-optic)
One multi-mode with SC connector. 2km communica-
tion distance. Full/half-duplex, selectable.
Protocols
Modbus TCP/IP, UDP/IP, i2o peer-to-peer.
Addressing
StaticIP, DHCP.
Ethernet Modbus TCP/IP Sockets/Sessions
1-10 socket/sessions user-configurable.
Ethernet Redundancy
Compatible with STP, RSTP, or any ring scheme.
◆ i2o Peer-to-Peer Communication
Each port of 8 output channels can serve as a target
for mapped inputs from ES215x units. Updates are
based on time (100mS resolution) or percent of range
change (0.1% resolution).
◆ Environmental
Operating and Storage Temperature
Operating: -40 to 70°C (-40 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).
Power Requirements
18-36V DC. Redundant, diode-coupled terminals.
3.3W (copper ports), 4.6W (fiber-optic ports), not
including excitation power.
Isolation
I/O, power, relay and Ethernet port-to-port.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC (150V AC ch-ch).
◆ Enclosure and Physical
Housing Classification and Dimensions
IP20: 8.226 x 2.444 x 7.25”, 4 lbs. packed.
PCB: 7.920 x 1.875 x 7.25”, 1.65 lbs. packed.
Safety Approvals)
CE marked and UL/cUL Listed.
Hazardous Locations: Class I; Div 2; A, B, C, D.
Open board units: UL Recognized.
Shock and Vibration Immunity (in enclosure)
Mechanical Shock: 50g (3ms), 30g (11ms).
Random Vibration: 5g, (5-500Hz).
Ordering Information
◆ Models
ES2172-0000
Voltage outputs, two Cu ports, IP20 enclosure
ES2172-0010
Voltage outputs, two Cu ports, open board
(no IP20 enclosure)
ES2172-1000
Voltage outputs, Cu & fiber ports, IP20 enclosure
ES2172-1010
Voltage outputs, Cu & fiber ports, open board (no IP20
enclosure)
◆ Accessories
8B Modules and Backpanels
See Page 32.
Industrial Ethernet Switches
See Page 33.
Hardware Accessories and Power Supplies
See Page 34.
Software Support
See Page 36.
Example i2o peer-to-peer mapping configuration screen from 

input source module (ES215x model).
These independent,
compact I/O modules
are ideal when you
need to interface a
small quantity of
I/O channels to your
system quickly, easily,
and economically.
BusWorks I/O Modules for
EtherNet/IP, Modbus TCP/IP
Acromag’s BusWorks 900EN I/O modules
are the best way to monitor or control
a few I/O devices without all the hassles
and expensive startup costs you get with
complex block I/O systems.
Each inch-wide module has its own
EtherNet/IP or Modbus TCP/IP network
port and up to 16 I/O channels. No
buscouplers, CPUs, I/O racks, or special
power supplies are required. Just connect
your sensors, valves, motors, or other
devices and the I/O modules will link the
data to your control network. If you need
any extra channels in the future, just add
another I/O module.
Setup is fast and easy, too. A web
browser is the only software you need.
An embedded web page provides a
simple configuration menu to help you
quickly set desired operating parameters
and functions.
Commercial or Industrial-Grade I/O
Ask about commercial-grade models to
save money on less demanding projects.
Peer-to-peer communication with i2o
Input modules can write directly to
remote output modules without a PLC or
a PC in between.
Acromag also offers isolated, industrial-
grade 5-port switches to simplify your
network connections.
Inputs
• Thermocouple • DC current/voltage
• RTD/resistance • AC current
• Millivolt  • Discrete level/status
• 8B signal conditioning modules
Outputs
• DC voltage  • Discrete switches
• DC current
Power
• 15-36V DC
Software Support
• Configuration via web browser
• Modbus C library
• Ethernet/IP .eds files
• Utilities
Approvals
• CE, ATEX, UL/cUL Class I Div 2
• EtherNet/IP, Modbus TCP/IP conformance
For more information, visit our website at
/BusWorks-900EN
6
Call 877-214-6267 or 248-295-0880 for technical 

assistance.
ETHERNET I/O: COMPACT SIZE
958EN
with 8Bs
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 14 –
Description
Models
961EN: 6 DC current input channels
962EN: 6 DC voltage input channels
These modules provide an isolated Ethernet
network interface for six analog input channels.
Differential inputs eliminate ground loops and
thus the need for isolators in many applications.
Multi-range inputs accept signals from a variety
of sensors and devices. High-resolution, low
noise, A/D converters deliver high accuracy and
reliability.
Input Ranges
Ranges are selectable for a 3-channel group.
DC Current:
0 to 1mA, 0 to 11mA, 0 to 20mA, 4 to 20mA
0 to 20 amps AC (with optional AC sensor)
DC Voltage:
±78mV to ±10V DC (eight range options)
Network Communication
EtherNet/IP or Modbus TCP/IP 10/100Mbps
Power Requirement
15 to 36V DC supply (2 Watts) required
Approvals
CE/ATEX marked.
UL, cUL listed, Class I; Div. 2; Groups A, B, C, D.
EtherNet/IP, Modbus/TCP conformance tested.
Key Features & Benefits
■ Configurable from standard web browser
■ EtherNet/IP or Modbus TCP/IP communication
with auto 10/100Mbps data rate negotiation
■ i2o technology for peer-to-peer communication
without a network controller (see Page 6)
■ 6-input stand-alone module is very economical
■ Differential inputs eliminate ground loops
■ High-resolution 16-bit Σ-? A/D converters
ensure precise, high accuracy measurements
■ Wide operational temperature range permits
installation in extreme environments
Performance Specifications
◆ Input
Accuracy
Better than ±0.05% of span for nominal input ranges.
Analog to Digital Converter (A/D)
16-bit Σ-? converter. 0.005% (1/20000) resolution.
Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 140dB @ 60Hz.
Input Filter Bandwidth
-3dB at 3Hz, typical.
Input Conversion Rate
80mS per channel.
Input Impedance
DC current input: 25 ohms.
DC voltage input: Greater than 110.5K ohms.
◆ Environmental
Ambient Temperature and Humidity
Operating: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).
Relative Humidity: 5 to 95%, non-condensing.
Isolation
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between I/O, network, and power.
Ordering Information
NOTE: i2o function only on Modbus TCP/IP modules
◆ I/O Modules
961EN-4006
Current input, 6-channel, Ethernet Modbus TCP/IP,
i2o communication
961EN-6006
Current input, 6-channel, EtherNet/IP
962EN-4006
Voltage input, 6-channel, Ethernet Modbus TCP/IP,
i2o communication
962EN-6006
Voltage input, 6-channel, EtherNet/IP
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
6-channel differential analog current or voltage input ◆ 

Ethernet/IP, Modbus TCP/IP, i20 peer-to-peer
TB1
11
46
13
44
14
43
16
41
TB4
21
36
22
35
24
33
25
32
IN5-
IN0+ IN4-
IN0- IN4+
IN1-
TB4
IN2- GND
IN3+ DC-
TB3
C
RST DFT
LINK
12
45
TB2
15
42
23 26
31 34
ACT
ST
3.75
(95.3)
TB1
IN5+
3.90
(99.1)
IN1+
TB2 TB2
INPUTS 0, 1
IN2+
IN3-
INPUTS 2, 3
DC+
PWR
1.05
(26.7)
4.68
(118.9)
RUN
TB3
2.34
(59.4)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
ETHERNET
Acromag
INPUTS 4, 5
4.35
(110.5)
Model 961EN-4006
Model 962EN-4006
961EN, 962EN Ethernet Analog Input Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 15 –
Description
Models
963EN: 12 DC current input channels
964EN: 12 DC voltage input channels
These modules provide an isolated Ethernet
network interface for twelve analog input
channels. Compact design saves space and
lowers system costs. Multi-range inputs accept
signals from a variety of sensors and devices.
High-resolution, low noise, A/D converters
deliver high accuracy and reliability.
Input Ranges
Ranges user-selectable on each terminal block for
a group of four input channels (4-channel basis).
DC Current:
0 to 1mA, 0 to 11mA, 0 to 20mA, 4 to 20mA
0 to 20 amps AC (with optional AC sensor)
DC Voltage:
±1V, ±5V, or ±10V DC
Network Communication
EtherNet/IP or Modbus TCP/IP 10/100Mbps
Power Requirement
15 to 36V DC supply (2 Watts) required
Approvals
CE/ATEX marked.
UL, cUL listed, Class I; Div. 2; Groups A, B, C, D.
EtherNet/IP, Modbus/TCP conformance tested.
Key Features & Benefits
■ Configurable from standard web browser
■ EtherNet/IP or Modbus TCP/IP communication
with auto 10/100Mbps data rate negotiation
■ 12-input module has very low cost per channel
■ Universal DC inputs support a wide variety of
industrial sensors and signals
■ High-resolution 16-bit Σ-? A/D converters
ensure precise, high accuracy measurements
■ Wide operational temperature range permits
installation in extreme environments
Performance Specifications
◆ Input
Accuracy
Better than ±0.05% of span for nominal input ranges.
Analog to Digital Converter (A/D)
16-bit Σ-? converter. 0.005% (1/20000) resolution.
Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 140dB @ 60Hz.
Input Filter Bandwidth
-3dB at 3Hz, typical.
Input Conversion Rate
180mS per channel.
Input Impedance
DC Current Input: 49.9 ohms.
DC Voltage Input: Greater than 110.5K ohms.
◆ Environmental
Ambient Temperature and Humidity
Operating: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).
Relative Humidity: 5 to 95%, non-condensing.
Isolation
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between I/O, network, and power.
Inputs share a common.
Ordering Information
◆ I/O Modules
963EN-4012
Current input, 12-channel, Ethernet Modbus TCP/IP
963EN-6012
Current input, 12-channel, EtherNet/IP
964EN-4012
Voltage input, 12-channel, Ethernet Modbus TCP/IP
964EN-6012
Voltage input, 12-channel, EtherNet/IP
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
963EN, 964EN Ethernet Analog Input Modules
12-channel single-ended analog current or voltage input ◆ 

Ethernet/IP or Modbus TCP/IP communication
TB1
11
46
13
44
14
43
16
41
TB4
21 22 24
33
25
32
IN00 RTN
RTN IN10
IN02 RTN
RTN IN08
TB4
IN04
IN05
IN06 GND
IN07 DC-
TB3
C
RST DFT
LINK
12
45
TB2
15
42
23 26
31
ACT
ST
3.75
(95.3)
IN01
TB1
IN11
3.90
(99.1)
IN03
TB2
IN09
RTN
RTN
PWR
DC+
1.05
(26.7)
4.68
(118.9)
RUN
TB3
2.34
(59.4)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
ETHERNET
Acromag
ANALOG INPUTS: 4-7
4.35
(110.5)
ANALOG INPUTS: 0-3
Model 964EN-4012 Shown
(963EN-4012 Similar)
ANALOG INPUTS: 8-11
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 16 –
Description
These modules provide an isolated Ethernet
network interface for up to six input channels.
Differential inputs eliminate ground noise and
each terminal block includes a cold junction
compensation (CJC) sensor for more precise
temperature measurements. Multi-range
inputs accept signals from a variety of sensors
and devices. High-resolution, low noise, A/D
converters deliver high accuracy and reliability.
Input Ranges
Ranges are selectable for a 3-channel group.
Thermocouple (user-selectable type)
Type J, K, T, R, S, E, B, or N
DC Millivolts (user-selectable range)
±100mV or ±1V DC
Network Communication
EtherNet/IP or Modbus TCP/IP 10/100Mbps
with automatic data rate negotiation
Power Requirement
15 to 36V DC supply (2 Watts) required
Approvals
CE/ATEX marked.
UL, cUL listed, Class I; Div. 2; Groups A, B, C, D.
EtherNet/IP, Modbus/TCP conformance tested.
Key Features & Benefits
■ Configurable from standard web browser
■ Universal inputs support a variety of sensors
■ Thermocouple break detection (upscale or
downscale) identifies sensor wiring failures
■ High-resolution 16-bit Σ-? A/D converters
ensure precise, high accuracy measurements
■ Wide operational temperature range
Performance Specifications
◆ Input
Accuracy
Input Input Range Accuracy (typical)
Type J -210 to 760°C  ±0.5°C
Type K  -200 to 1372°C  ±0.5°C
Type T  -260 to 400°C  ±0.5°C
Type R  -50 to 1768°C  ±1.0°C
Type S  -50 to 1768°C  ±1.0°C
Type E  -200 to 1000°C  ±0.5°C
Type B  260 to 1820°C  ±1.0°C
Type N  -230 to -170°C  ±1.0°C
Type N  -170 to 1300°C  ±0.5°C
Voltage  ±100mV or ±1V DC  ±0.1% of span
Cold Junction Compensation (CJC) Accuracy:
±0.5°C.
Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 140dB @ 60Hz.
Input Filter Bandwidth
-3dB at 3Hz, typical.
Input Conversion Rate
80mS per channel.
◆ Environmental
Ambient Temperature and Humidity
Operating: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).
Relative humidity: 5 to 95%, non-condensing.
Isolation
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between I/O, network, and power.
Ordering Information
NOTE: i2o function only available on 6-channel
Modbus TCP/IP modules
◆ I/O Modules
965EN-4004
4-channel TC/mV input, Ethernet Modbus TCP/IP
965EN-6004
4-channel TC/mV input, EtherNet/IP
965EN-4006
6-channel TC/mV input, Ethernet Modbus TCP/IP, i2o
965EN-6006
6-channel TC/mV input, EtherNet/IP interface
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
4 or 6-channel thermocouple/millivolt input ◆ 

Ethernet/IP, Modbus TCP/IP, i20 peer-to-peer messaging
TB1
11
46
13
44
14
43
16
41
TB4
21
36
22
35
24
33
25
32
IN5-
IN0+ IN4-
IN0- IN4+
IN1-
TB4
IN2- GND
IN3+ DC-
TB3
C
RST DFT
LINK
12
45
TB2
15
42
23 26
31 34
ACT
ST
3.75
(95.3)
TB1
CJC-0
IN5+
3.90
(99.1)
IN1+
TB2 TB2
INPUTS 0, 1
CJC-2
IN2+
IN3-
INPUTS 2, 3
DC+
PWR
1.05
(26.7)
4.68
(118.9)
RUN
TB3
2.34
(59.4)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
ETHERNET
Acromag
INPUTS 4, 5
CJC-1
4.35
(110.5)
(Model 965EN-4006 Only)
Model 965EN-4006 Shown
(965EN-4004 Similar)
965EN Ethernet Temperature Input Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 17 –
Description
These modules provide an isolated Ethernet
network interface for up to six input channels.
Multi-range inputs accept signals from a variety
of sensors and devices. High-resolution, low
noise, A/D converters deliver high accuracy and
reliability. 3-way isolation further improves the
system performance.
Input Ranges
Input ranges are selectable for a 3-channel group.
RTD
2-wire and 3-wire RTDs are supported.
Platinum 100 ohm (alpha = 1.3850 or 1.3911)
Nickel 120 ohm
Copper 10 ohm
Resistance
0 to 500 ohms
Network Communication
EtherNet/IP or Modbus TCP/IP 10/100Mbps
with automatic data rate negotiation
Power Requirement
15 to 36V DC supply (2 Watts) required
Approvals
CE/ATEX marked.
UL, cUL listed, Class I; Div. 2; Groups A, B, C, D.
EtherNet/IP, Modbus/TCP conformance tested.
Key Features & Benefits
■ Configurable from standard web browser
■ 6-input stand-alone module has much lower
start-up cost than multi-piece block I/O systems
■ Versatile RTD or ohmic inputs support a wide
variety of industrial sensors and devices
■ RTD break detection (upscale or downscale)
identifies sensor wiring failures
■ High-resolution 16-bit Σ-? A/D converters
ensure precise, high accuracy measurements
■ Wide operational temperature range permits
installation in extreme environments
Performance Specifications
◆ Input
Accuracy
Input Type Input Range Accuracy (typical)
Pt 100 ohm -200 to 850°C  ±0.25°C
Ni 120 ohm -80 to 320°C  ±0.25°C
Cu 10 ohm -200 to 260°C  ±1.25°C
Resistance 0 to 500 ohms  ±0.05 ohms
RTD Break Detection
Upscale or downscale selection applies to all channels.
Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 130dB @ 60Hz.
Input Filter Bandwidth
-3dB at 3Hz, typical.
Input Conversion Rate
80mS per channel.
Excitation Current
1mA DC typical, all RTD types.
◆ Environmental
Ambient Temperature and Humidity
Operating: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).
Relative humidity: 5 to 95%, non-condensing.
Isolation
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between I/O, network, and power.
Inputs share a common.
Ordering Information
NOTE: i2o function only available on 6-channel
Modbus TCP/IP modules
◆ I/O Modules
966EN-4004
4-channel RTD input, Ethernet Modbus TCP/IP
966EN-6004
4-channel RTD input, EtherNet/IP interface
966EN-4006
6-channel RTD input, Ethernet Modbus TCP/IP, i2o
966EN-6006
6-channel RTD input, EtherNet/IP interface
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
4 or 6-channel RTD/resistance input ◆ Ethernet/IP, Modbus 

TCP/IP, i20 peer-to-peer messaging
TB1
11
46
13
44
14
43
16
41
21 22 24
33
25
32
IN0+ IN5L
IN0L IN5+
IN1+ IN4L
IN1L IN4+
TB4
IN2+
IN2-
IN3+ GND
IN3- DC-
TB3
C
RST DFT
LINK
12
45
TB2
15
42
23 26
31
ACT
ST
3.75
(95.3)
IN0-
TB1
IN5-
3.90
(99.1)
IN1-
TB2
IN4-
IN2L
IN3L
RTD INPUTS 2,3
DC+
PWR
1.05
(26.7)
4.68
(118.9)
RUN
2.34
(59.4)
"T" RAIL DIN MOUNTING
DIN EN 50022,35mm
ETHERNET
RTD INPUTS 0,1
Acromag
RTD INPUTS 4,5
4.35
(110.5)
Model 966EN-4006
Model 966EN-4004
(966EN-4006 ONLY)
TB4 TB3
966EN Ethernet Temperature Input Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 18 –
Description
Models
967EN-4008: Industrial-grade units
967EN-4C08: Commercial-grade units
These modules interface high-level analog
input signals to an Ethernet network. A
high-performance design ensures reliable
measurements and dependable operation.
Industrial-grade models add a configurable
integrator/totalizer plus superior accuracy and
temperature performance compared to the
economical commercial-grade version.
Input Ranges
±20mA, 0-20mA, 4-20mA DC
(selectable on each channel)
Ethernet Communication
Modbus TCP/IP, 10/100Base-T(X),
i2o peer-to-peer
Power Requirement
18 to 36V DC, 2.4W
Approvals
CE, UL/cUL (industrial-grade units only)
Zone 2, Class 1, Division 2, ABCD
Key Features & Benefits
■ High-resolution 16-bit A/D
■ Fast scanning of all channels in 8mS
■ 3-way isolation and surge suppression
■ Peer-to-peer i2o communication with
percent-of-span or timed-based updates
■ Configurable integration/totalization function
with non-volatile registers
■ Dual-format 16/32-bit data registers
■ Scaling registers on all channels
■ Configurable sample averaging
■ Automatic calibration and self-test
■ User-adjustable TCP Ports 1-99,999 for
advanced network configuration
■ Web browser configuration with copy utility
for fast setup
i2o Peer-to-Peer Messaging
With Acromag’s i2o technology, you can map
each input channel to any output channel on a
97xEN-400x output unit. Select updates based on
time or on a percent of range change (100mS or
0.1% resolution).
Performance Specifications
Accuracy
967EN-4008: Less than 0.05% of range.
967EN-4C08: Less than 0.10% of range.
Input Impedance
200 ohms.
Operating Temperature and Humidity Ranges
967EN-4008: -40 to 70°C (-40 to 158°F).
967EN-4C08: 0 to 55°C (32 to 131°F).
Relative humidity: 5 to 95%, non-condensing.
Isolation
3-way isolation of I/O, power, network circuits.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC.
Ordering Information
◆ I/O Modules
967EN-4008 {industrial-grade}
8-ch current input module with integrator
967EN-4C08 {commercial-grade*}
8-ch current input module
* CE approval only, no integrator function
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
8-channel differential current input ◆ Modbus TCP/IP, i2o 

® peer-to-peer communication
46 44 43 41 33 32
TB1
11
IN1+
13
IN1-
14
IN2-
16
TB3
TB4
21
IN3-
22
IN4-
24
IN5+
25
TB4
ACT LINK
ST
45 42
PWR
31
L
C
RUN
3.75
(95.3)
TB1
IN0-
IN0+
12
36 34 35
TB2
TB2
IN2+
15
IN4+
IN3+
IN5-
26 23
TB3
4.68
(118.9)
3.90
(99.1)
ETHERNET
DEF
INPUTS 6, 7
2.34
(59.4)
INPUTS 0, 1, 2
Acromag
INPUTS 3, 4, 5
1.05
(26.7)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
4.35
(110.5)
Model 967EN-4008
Model 967EN-4C08
®
DC–
IN7+
COM
GND
DC+
IN6-
IN6+
COM
IN7-
967EN Ethernet Analog Input Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 19 –
8-channel differential analog voltage input ◆ Modbus 

TCP/IP, i2o® peer-to-peer communication
Description
Models
968EN-4008: Industrial-grade units
968EN-4C08: Commercial-grade units
These modules interface high-level analog
input signals to an Ethernet network. A
high-performance design ensures reliable
measurements and dependable operation.
Industrial-grade models add a configurable
integrator/totalizer plus superior accuracy and
temperature performance compared to the
economical commercial-grade version.
Input Ranges
±5V, ±10V DC
(selectable on each channel)
Ethernet Communication
Modbus TCP/IP, 10/100Base-T(X),
i2o peer-to-peer
Power Requirement
18 to 36V DC, 2.4W
Approvals
CE, UL/cUL (industrial-grade units only)
Zone 2, Class 1, Division 2, ABCD
Key Features & Benefits
■ High-resolution 16-bit A/D
■ Fast scanning of all channels in 8mS
■ 3-way isolation and surge suppression
■ Peer-to-peer i2o communication with
percent-of-span or timed-based updates
■ Configurable integration/totalization function
with non-volatile registers
■ Dual-format 16/32-bit data registers
■ Scaling registers on all channels
■ Configurable sample averaging
■ Automatic calibration and self-test
■ User-adjustable TCP Ports 1-99,999 for
advanced network configuration
■ Web browser configuration with copy utility
for fast setup
i2o Peer-to-Peer Messaging
With Acromag’s i2o technology, you can map
each input channel to any output channel on a
97xEN-400x output unit. Select updates based on
time or on a percent of range change (100mS or
0.1% resolution).
Performance Specifications
Accuracy
968EN-4008: Less than 0.05% of range.
968EN-4C08: Less than 0.10% of range.
Input Impedance
4M ohms.
Operating Temperature and Humidity Ranges
968EN-4008: -40 to 70°C (-40 to 158°F).
968EN-4C08: 0 to 55°C (32 to 131°F).
Relative humidity: 5 to 95%, non-condensing.
Isolation
3-way isolation of I/O, power, network circuits.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC.
Ordering Information
◆ I/O Modules
968EN-4008 {industrial-grade}
8-ch voltage input module with integrator
968EN-4C08 {commercial-grade*}
8-ch voltage input module
* CE approval only, no integrator function
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
46 44 43 41 33 32
TB1
11
IN1+
13
IN1-
14
IN2-
16
TB3
TB4
21
IN3-
22
IN4-
24
IN5+
25
TB4
ACT LINK
ST
45 42
PWR
31
L
C
RUN
3.75
(95.3)
TB1
IN0-
IN0+
12
36 34 35
TB2
TB2
IN2+
15
IN4+
IN3+
IN5-
26 23
TB3
4.68
(118.9)
3.90
(99.1)
ETHERNET
DEF
INPUTS 6, 7
2.34
(59.4)
INPUTS 0, 1, 2
Acromag
INPUTS 3, 4, 5
1.05
(26.7)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
4.35
(110.5)
Model 968EN-4008
Model 968EN-4C08
®
DC–
IN7+
COM
GND
DC+
IN6-
IN6+
COM
IN7-
968EN Ethernet Analog Input Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 23 –
Description
Models
993EN-4016: Industrial-grade units
993EN-4C16: Commercial-grade units
These modules interface high-level analog
input signals to an Ethernet control network.
A high-performance design ensures reliable
measurements and dependable operation.
Industrial-grade models add a configurable
integrator/totalizer plus superior accuracy and
temperature performance compared to the
economical commercial-grade version.
Input Ranges
±20mA, 0-20mA, 4-20mA DC
(selectable on each channel)
Ethernet Communication
Modbus TCP/IP, 10/100Base-T(X)
Power Requirement
18 to 36V DC, 2.0W
Approvals
CE, UL/cUL (industrial-grade units only)
Zone 2, Class 1, Division 2, ABCD
Key Features & Benefits
■ High-resolution 16-bit A/D
■ Fast scanning of all channels in 8mS
■ 3-way isolation and surge suppression
■ Configurable integration/totalization function
with non-volatile registers
■ Dual-format 16/32-bit data registers
■ Scaling registers on all channels
■ Configurable sample averaging
■ Automatic calibration and self-test
■ User-adjustable TCP Ports 1-99,999 for
advanced network configuration
■ Web browser configuration with copy utility
for fast setup
Performance Specifications
Accuracy
993EN-4016: Less than 0.05% of range.
993EN-4C16: Less than 0.10% of range.
Input Impedance
200 ohms.
Operating Temperature and Humidity Ranges
993EN-4016: -40 to 70°C (-40 to 158°F).
993EN-4C16: 0 to 55°C (32 to 131°F).
Relative humidity: 5 to 95%, non-condensing.
Isolation
3-way isolation of I/O, power, network circuits.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC.
Ordering Information
◆ I/O Modules
993EN-4016 {industrial-grade}
16-ch current input module with integrator
993EN-4C16 {commercial-grade*}
16-ch current input module
* CE approval only, no integrator function
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
16-channel single-ended analog current input ◆ Modbus 

TCP/IP communication
46 44 43 41 33 32
TB1
11 13 14 16
TB3
TB4
21 22 24 25
TB4
ACT LINK
ST
45 42
PWR
31
L
C
RUN
3.75
(95.3)
TB1
12
36 34 35
TB2
TB2
15 26 23
TB3
4.68
(118.9)
3.90
(99.1)
ETHERNET
DEF
2.34
(59.4)
Acromag
1.05
(26.7)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
4.35
(110.5)
Model 993EN-4016
Model 993EN-4C16
®
DC–
GND
DC+
IN02
IN03
IN05
IN07
IN09
IN10
IN01
IN00
IN04
IN08
IN06
IN11
ANALOG IN: 12-15
ANALOG IN: 0-5 ANALOG IN: 6-11
IN14
COM
IN13
IN12
COM
IN15
993EN Ethernet Analog Input Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 24 –
46 44 43 41 33 32
TB1
11
IN02
13
IN03
14
IN05
16
TB3
TB4
21
IN07
22
IN09
24
IN10
25
TB4
ACT LINK
ST
45 42
PWR
31
L
C
RUN
3.75
(95.3)
TB1
IN01
IN00
12
36 34 35
TB2
TB2
IN04
15
IN08
IN06
IN11
26 23
TB3
4.68
(118.9)
3.90
(99.1)
ETHERNET
DEF
ANALOG IN: 12-15
2.34
(59.4)
ANALOG IN: 0-5
Acromag
ANALOG IN: 6-11
1.05
(26.7)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
4.35
(110.5)
Model 994EN-4016
Model 994EN-4C16
®
DC–
IN14
COM
GND
DC+
IN13
IN12
COM
IN15
Description
Models
994EN-4016: Industrial-grade units
994EN-4C16: Commercial-grade units
These modules interface high-level analog
input signals to an Ethernet control network.
A high-performance design ensures reliable
measurements and dependable operation.
Industrial-grade models add a configurable
integrator/totalizer plus superior accuracy and
temperature performance compared to the
economical commercial-grade version.
Input Ranges
±5V, ±10V DC
(selectable on each channel)
Ethernet Communication
Modbus TCP/IP, 10/100Base-T(X)
Power Requirement
18 to 36V DC, 2.0W
Approvals
CE, UL/cUL (industrial-grade units only)
Zone 2, Class 1, Division 2, ABCD
Key Features & Benefits
■ High-resolution 16-bit A/D
■ Fast scanning of all channels in 8mS
■ 3-way isolation and surge suppression
■ Configurable integration/totalization function
with non-volatile registers
■ Dual-format 16/32-bit data registers
■ Scaling registers on all channels
■ Configurable sample averaging
■ Automatic calibration and self-test
■ User-adjustable TCP Ports 1-99,999 for
advanced network configuration
■ Web browser configuration with copy utility
for fast setup
Performance Specifications
Accuracy
994EN-4016: Less than 0.05% of range.
994EN-4C16: Less than 0.10% of range.
Input Impedance
4M ohms.
Operating Temperature and Humidity Ranges
994EN-4016: -40 to 70°C (-40 to 158°F).
994EN-4C16: 0 to 55°C (32 to 131°F).
Relative humidity: 5 to 95%, non-condensing.
Isolation
3-way isolation of I/O, power, network circuits.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC.
Ordering Information
◆ I/O Modules
994EN-4016 {industrial-grade}
16-ch voltage input module with integrator
994EN-4C16 {commercial-grade*}
16-ch voltage input module
* CE approval only, no integrator function
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
16-channel single-ended analog voltage input ◆ Modbus 

TCP/IP communication
994EN Ethernet Analog Input Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 20 –
TB1
11 13 14 16 21
36
22
35
24
33
25
32
I 0+
I 1+
RTN
RTN
I 3+
RTN
RTN GND
I 5+ DC-
TB3
C
RST DFT
LINK
12
TB2
15 23 26
31 34
ACT
ST
3.75
(95.3)
TB1
RTN
3.90
(99.1)
I 2+
TB2
RTN
I 4+
ANALOG OUTPUTS
PWR
DC+
1.05
(26.7)
4.68
(118.9)
RUN
TB3
2.34
(59.4)
"T" RAIL DINMOUNTING
DIN EN50022, 35mm
ETHERNET
Acromag
4.35
(110.5)
Model
972EN-4006 Only
ANALOG OUTPUTS
Model 972EN-4006
(Models 972EN-4004, 973EN-4006,
and 973EN-4004 are similar)
4 or 6-channel DC current or voltage output ◆ 

Ethernet/IP, Modbus TCP/IP, i20 peer-to-peer messaging
Description
Models
972EN: DC current output channels
973EN: DC voltage output channels
These modules provide up to six channels of
analog output. Multi-range outputs support a
wide variety of industrial devices. They can drive
displays and recorders, control drives, or send
analog signals to other systems. High-resolution,
low noise, D/A converters deliver high accuracy
and reliability. 3-way isolation further improves
system performance.
Output Ranges
Ranges selectable on channel to channel basis.
DC Current (user-selectable ranges)
0 to 1mA, 0 to 20mA, or 4 to 20mA
DC Voltage (user-selectable ranges)
0 to 1V, 0 to 5V, or 0 to 10V DC
Network Communication
EtherNet/IP or Modbus TCP/IP10/100Mbps
with automatic data rate negotiation
Power Requirement
15 to 36V DC supply required
4.6 Watts (972EN) or 2.3 Watts (973EN)
Approvals
CE/ATEX marked.
UL, cUL listed, Class I; Div. 2; Groups A, B, C, D.
EtherNet/IP, Modbus/TCP conformance tested.
Key Features & Benefits
■ Configurable from standard web browser
■ 6-input stand-alone module has much lower
start-up cost than multi-piece block I/O systems
■ Universal DC outputs support a wide variety of
signals and industrial devices
■ Three selectable failsafe modes (0%, last-state,
or pre-defined) help prevent unsafe conditions
■ Wide operational temperature range permits
installation in extreme environments
Performance Specifications
◆ Output
Accuracy
Better than ±0.1% of span, typical.
1.6% for 0 to 1mA range. 0.8% for 0 to 1V range.
Digital to Analog Converter (D/A)
12-bit converter.
Current Output Compliance
12V minimum, 13V typical.
Current Output Load Resistance Range
0 to 625 ohms, typical.
Voltage Output Source Current
0 to 10mA DC, maximum.
◆ Environmental
Ambient Temperature and Humidity
Operating:
972EN models -25 to 60°C (-13 to 140°F).
973EN models: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).
Relative humidity: 5 to 95%, non-condensing.
Isolation
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between I/O, network, and power.
Outputs share a common.
Ordering Information
NOTE: i2o function only on Modbus TCP/IP modules
◆ I/O Modules
972EN-4004
4-ch. current output, Ethernet Modbus TCP/IP, i2o
972EN-4006
6-ch. current output, Ethernet Modbus TCP/IP, i2o
972EN-6004
4-channel current output, EtherNet/IP
972EN-6006
6-channel current output, EtherNet/IP
973EN-4004
4-ch. voltage output, Ethernet Modbus TCP/IP, i2o
973EN-4006
6-ch. voltage output, Ethernet Modbus/TCP, i2o
973EN-6004
4-channel voltage output, EtherNet/IP
973EN-6006
6-channel voltage output, EtherNet/IP
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
972EN, 973EN Ethernet Analog Output Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 21 –
46 44 43 41 33
DC-
32
9
5 6
1 2 0
11
7
3
TB1
EXC1
11
RTN
CH 1
13
CH10
CH 2
14
CH 9
RTN
16
EXC3
TB4
TB4
EXC2
21
CH 4
22
CH 6
24
GND
CH 7
25
TB3
CH. I/O STATUS
RST
ACT
LINK
ST
45 42
PWR
DC+
31
L
C
8
4
RUN
10
3.75
(95.3)
TB1
CH 0
12
CH11
TB2
TB2
CH 3
15
CH 8
CH 5
RTN
26 23
TB3
4.68
(118.9)
3.90
(99.1)
ETHERNET
DFT
DIGITAL IN or OUT
2.34
(59.4)
DIGITAL IN or OUT
Acromag
DIGITAL IN or OUT
1.05
(26.7)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
4.35
(110.5)
Model 983EN-4012 Shown
(981EN-4012 & 982EN-4012 Similar)
Description
Models
981EN: 12 input channels
982EN: 12 output channels
983EN: 12 input/output channels
These modules provide an isolated Ethernet
network interface for twelve discrete input
and/or output channels. The outputs provide
direct on/off, high/low, or open/close control of
industrial devices. The inputs sense the status of
motors, pumps, valves and other equipment. The
983EN model with tandem I/O provides output
level control and status verification in one unit.
Input Range
0 to 35V DC
Output Range
0 to 35V DC
Network Communication
EtherNet/IP or Modbus TCP/IP 10/100Mbps
with automatic data rate negotiation
Power Requirement
15 to 36V DC supply (2 Watts) required
Approvals
CE/ATEX marked.
UL, cUL listed, Class I; Div. 2; Groups A, B, C, D.
EtherNet/IP, Modbus/TCP conformance tested.
Key Features & Benefits
■ Configurable from standard web browser
■ 12-channel stand-alone module has far lower
start-up cost than multi-piece block I/O systems
■ 0-35V DC solid-state logic interface can
monitor or control a wide variety of devices
■ Bidirectional I/O models facilitate loopback
monitoring of the output state
■ Socketed SIP resistors provide input and output
5.6K ohm pull-ups to the excitation supply
■ Three selectable failsafe modes (off, last-state,
or pre-defined) help prevent unsafe conditions
Performance Specifications
◆ Input (981 & 983 models)
Input Type
Twelve active-low, buffered inputs, with a common
connection. Built-in 5.6K ohm pullups to excitation
terminal socketed for 4-channel groups.
Input Signal Voltage Range
0 to 35V DC, maximum.
Input Impedance
100K ohms, typical.
Input Signal Threshold
TTL compatible with 100mV of hysteresis, typical.
◆ Output (982 & 983 models)
Output Type
12 independent, open-drain, MOSFET switches.
Output Voltage and ON Resistance
0 to 35V DC max. (0 to 500mA/channel continuous).
0.28 ohms maximum ON resistance.
◆ Environmental
Ambient Temperature and Humidity
Operating: -25 to 70°C (-13 to 158F).
Storage: -40 to 85°C (-40 to 185°F).
Relative Humidity: 5 to 95%, non-condensing.
Isolation
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between I/O, network, and power.
Ordering Information
NOTE: i2o function only on Modbus TCP/IP modules
◆ I/O Modules
981EN-4012
Discrete input, Ethernet Modbus TCP/IP
981EN-6012
Discrete input, EtherNet/IP
982EN-4012
Discrete output, Ethernet Modbus TCP/IP, i2o
982EN-6012
Discrete output, EtherNet/IP
983EN-4012
Discrete input/output, Ethernet Modbus TCP/IP, i2o
983EN-6012
Discrete input/output, EtherNet/IP
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
12-channel discrete input and/or output ◆ Ethernet/IP, 

Modbus TCP/IP, i20 peer-to-peer messaging
981EN, 982EN, 983EN Ethernet Discrete I/O Modules
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 22 –
46 44 43 41 33 32
TB1
11
CH 2
13
CH 3
14
RTN
16
TB3
TB4
21
CH 6
22
CH 8
24
CH 9
25
TB4
ACT
LINK
ST
45 42
PWR I/O EXC
31
L
C
RUN
3.75
(95.3)
TB1
CH 1
CH 0
12
36 34 35
TB2
TB2
CH 4
15
CH 7
CH 5
RTN
26 23
TB3
4.68
(118.9)
3.90
(99.1)
ETHERNET
DFT
DIGITAL IN or OUT
2.34
(59.4)
DIGITAL IN or OUT
Acromag
DIGITAL IN or OUT
1.05
(26.7)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
4.35
(110.5)
Model 989EN-4016
Model 989EN-4C16
®
DC–
CH13
CH12
GND
DC+
RTN
EXC+
CH15
CH11
CH10
RTN
CH14
Description
Models
989EN-4016: Industrial-grade version
989EN-4C16: Commercial-grade (no counters
These modules provide an isolated Ethernet
interface for any input/output mix of up to 16
discrete signals. Inputs sense the status of dry
contacts, switches, power supplies, and DC logic.
Industrial-grade units have eight 32-bit counters
with timers, alarms, and non-volatile memory for
metering, totalizing, and low-frequency periodic
measurement. The outputs control solid-state
switching of lamps, horns, and other devices.
Input/Output Ranges
Input: 0-28V DC, 31V DC maximum
Output: 0-28V DC, 0.5A/ch max, 2A total
Counter/Timers
(Industrial-grade units)
8 up/down counters, 32-bit, 150Hz max
8 timers, 16-bit, 1mS resolution
Ethernet Communication
Modbus TCP/IP, 10/100Base-T(X)
Power Requirement
18 to 36V DC (1.33 W)
Approvals (industrial-grade only)
CE, UL/cUL
Zone 2, Class 1, Division 2, ABCD
Key Features & Benefits
■ 16 solid-state discrete I/O channels
(any mix of inputs/outputs)
■ 3-way isolation and surge suppression
■ Web browser configuration
■ Automatic MDI/MDI-X negotiation
■ Inputs accept 2- or 3-wire sensors and active
logic switches (dry contacts, proximity, namur,
5-28V DC logic)
■ Inputs detect level and change of state
■ 8 configurable counter/timers
-32-bit up/down pulse/event counters
(with non-volatile memory)
-16-bit periodic timers for “last pulse”
-Momentary/latch alarms (each counter)
■ Programmable debounce
(0-65 seconds with 1mS resolution)
■ Programmable power-up conditions
■ Over-temperature, over-current, and
over-voltage output protection
■ Ability to “read-back” output states
■ Watchdog timer output configurable for fail-
safe or hold-last-value operation
■ Self-test and auto-copy functions
Performance Specifications
◆ Environmental
Operating Temperature Range
989EN-4016: -40 to 65°C (-40 to 149°F).
989EN-4C16: 0 to 55°C (32 to 131°F).
Storage Temperature Range
989EN-4016: -40 to 85°C (-40 to 185°F).
989EN-4C16: 0 to 70°C (32 to 158°F).
Relative Humidity
5 to 95%, non-condensing.
Isolation
3-way isolation of I/O, power, network circuits.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC.
Ordering Information
◆ I/O Modules
989EN-4016
16 I/O channels with pulse counter/timers
989EN-4C16
Commercial-grade, 16 I/O, no counter/timers
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
16-channel discrete I/O ◆ 8 counter/timers ◆ Modbus 

TCP/IP communication
989EN Ethernet Discrete I/O Modules with Counter/Timers
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 10 –
5 A
2 1
B
3
TB1
11
46
13
44
14
43
16
41
TB4
21
36
22
35
24
33
25
32
DIO-0
DIO-2
DIO-3
DIO-5
EXC+
RTN
RTN
AO 1+
COM
AI 2+
COM
AI 0+
GND
DC-
C
DFT
LINK
4
0
RUN
12 15
45 42
TB2
23
TB3
34
26
31
TB3
L
ETHERNET
ST
DIO-1
DIO-4
ANALOG IN
4.35
(110.5)
AO 0+
TB2
EXC
RTN
PWR
2.34
(59.4)
1.05
(26.7)
4.68
(118.9)
AI 1+
AI 3+
DC+
RST
TB4
DIGITAL IN or OUT
TB1
ACT
3.75
(95.3)
ANALOG OUT
3.90
(99.1)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
NOTE: Dimensions Are INCHES (MILLIMETERS).
DIO STATUS
Model 951EN-x012 or 952EN-x012 Shown
Acromag
4 analog inputs, 2 analog outputs, 6 discrete I/O channels 

◆ Ethernet/IP, Modbus TCP/IP, i20 peer-to-peer
951EN, 952EN Ethernet Analog and Discrete I/O Modules
Description
Models
951EN: Combo module, analog current inputs
952EN: Combo module, analog voltage inputs
These modules provide an isolated Ethernet
network interface for analog and discrete I/O
signals. Multi-range analog inputs and outputs
support a wide variety of industrial devices. High-
resolution, low noise, A/D and D/A converters
deliver high accuracy and reliability. 3-way isola-
tion further improves system performance. The
discrete I/O provide monitoring and control of
on/off, high/low, or open/close industrial devices.
Tandem I/O provides output level control and
status verification in one unit.
The i2o function lets inputs on one module write
directly to outputs on another module.
Analog Input Ranges
DC Current (user-selectable ranges)
0 to 1mA, 0 to 11mA, 0 to 20mA, 4 to 20mA
0 to 20 amps AC (with optional AC sensor)
DC Voltage (user-selectable ranges)
±1V, ±5V, ±10V DC
Analog Output Ranges
DC Current (user-selectable ranges)
0 to 1mA, 0 to 20mA, or 4 to 20mA
(0 to 625 ohm loads, typical)
Discrete I/O Range
0 to 35V DC active-high inputs
Current sourcing (high-side switched) outputs
Network Communication
EtherNet/IP or Modbus TCP/IP 10/100 network
Power Requirement
15 to 36V DC supply (3.3 Watts) required
Approvals
CE/ATEX marked.
UL, cUL listed, Class I; Div. 2; Groups A, B, C, D.
EtherNet/IP, Modbus/TCP conformance tested.
Key Features & Benefits
■ Configurable from standard web browser
■ EtherNet/IP or Modbus TCP/IP communication
with automatic 10/100Mbps negotiation
■ i2o technology for peer-to-peer communication
without a network controller (see Page 6)
■ Multi-function, multi-channel stand-alone
module is very economical
■ High-resolution 16-bit Σ-? A/D and D/A
converters ensure precise measurements
■ 0-35V DC solid-state logic interface can
monitor or control a wide variety of devices
■ Discrete I/O channels are individually configu-
rable as inputs or outputs in any combination
■ Bi-directional discrete I/O facilitates read-back
monitoring of the output state
■ Built-in 5.6K ohm pull-down SIP resistors
(socketed)
■ Selectable failsafe modes (0%, off, last-state,
or pre-defined) help prevent unsafe conditions
■ Compact packaging with pluggable terminals
saves space and simplifies wiring
■ Wide operational temperature range permits
installation in extreme environments
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 11 –
Performance Specifications
◆ General Specifications
See Page 9 for communication and other specs.
◆ Analog Input
Configuration
Four input channels. Input range is selectable as a
4-channel group.
Accuracy
Better than ±0.05% of span (0.1% for 0-1mA range),
typical. Accuracy near or below 0mA or 0V is
degraded if input COM shares AO/DIO RTNs.
Analog to Digital Converter (A/D)
16-bit Σ-? converter.
Resolution: 0.005% or 1 part in 20000.
Noise Rejection
Normal Mode: Better than 40dB @ 60Hz.
Common Mode: Better than 140dB @ 60Hz.
Input Conversion Rate
Less than 50mS per channel.
Input Impedance
DC current input (951EN): 49.9 ohms.
DC voltage input (952EN): Greater than 110.5K ohms.
◆ Analog Output
Configuration
Two output channels. Individually selectable ranges.
Accuracy
Better than ±0.05% of span (0.1% for 0-1mA range),
typical.
Digital to Analog Converter (D/A)
16-bit converter.
Current Output Compliance
12V minimum, 13V typical.
Current Output Load Resistance Range
0 to 625 ohms, typical.
◆ Discrete Input
Input Type
Six independent, active-high, buffered inputs with a
common connection. Built-in 5.6K ohm pull-down
resistors socketed for 3-channel groups.
Input Signal Voltage Range
0 to 35V DC, maximum.
Input Impedance
100K ohms, typical.
Input Signal Threshold
TTL compatible with 100mV of hysteresis, typical.
◆ Discrete Output
Output Type
Six independent, open-source, MOSFET switches.
Output Voltage and ON Resistance
Up to 35V DC max. (0 to 330mA/ch continuous).
0.15 ohms maximum ON resistance.
◆ Environmental
Ambient Temperature and Humidity
Operating: -25 to 70°C (-13 to 158°F).
Storage: -40 to 85°C (-40 to 185°F).
Relative Humidity: 5 to 95%, non-condensing.
Isolation
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between I/O, network, and power.
Ordering Information
NOTE: i2o function only on Modbus TCP/IP modules
◆ I/O Modules
951EN-4012
Combo module, current inputs,
Ethernet Modbus TCP/IP interface, i2o communication
951EN-6012
Combo module, current inputs,
EtherNet/IP interface
952EN-4012
Combo module, voltage inputs,
Ethernet Modbus TCP/IP interface, i2o communication
952EN-6012
Combo module, voltage inputs,
EtherNet/IP interface
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
i2o ™ Input-to-Output Peer-to-Peer Communication
Any
Ethernet media
No controller
is required
Analog inputs Analog outputs
Discrete inputs
Discrete outputs
Discrete outputs
Discrete inputs
AI 1
AI 2
Analog outputs
AO 3
AO 4
AO 1
AO 2
Analog inputs
AI 3
AI 4
DI 1
DI 2
DI 3
DO 1
DO 2
DO 3
DO 4
DO 5
DO 6
DI 4
DI 5
DI 6
Acromag’s i2o technology allows modules to talk directly 

to another module
across any Ethernet media without a PLC, PC, or other 

controller in between.
Input channels on one module can write to output channels 

on a remote module.
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 12 –
33 32
DB25
TB1
ACT LINK
ST
PWR
31
L
C
RUN
3.75
(95.3)
36 34 35
TB1
4.68
(118.9)
3.90
(99.1)
ETHERNET
DEF
2.34
(59.4)
Acromag
1.05
(26.7)
"T" RAIL DIN MOUNTING
DIN EN 50022, 35mm
4.35
(110.5)
Model 958EN-4016
Model 958EN-4C16
®
DC–
GND
DC+
00
IN02
02
IN03
03
IN05
05
IN01
IN00
01
IN04
04 06
IN08
08
IN09
09
IN11
11
IN07
IN06
07
IN10
10
IN12
12
IN13
13
IN15
15
IN14
14
ANALOG IN: 00-15
Description
Models
958EN-4016: Industrial-grade units
958EN-4C16: Commercial-grade units
These modules interface high-level analog
input signals to an Ethernet control network.
A high-performance design ensures reliable
measurements and dependable operation.
The DB25 port provides a parallel connection
to a rack of 8B analog input modules. The 8B
modules provide an isolated front-end with signal
conditioning of up to 16 sensor signals.
Industrial-grade models add a configurable
integrator/totalizer plus superior accuracy and
temperature performance compared to the
economical commercial-grade version.
Input Ranges
±5V DC via DB25 port connection (default) or
±10V DC
Ethernet Communication
Modbus TCP/IP, 10/100Base-T(X)
Power Requirement
18 to 36V DC, 2.0W
Approvals
CE, UL/cUL (industrial-grade units only)
Zone 2, Class 1, Division 2, ABCD
Key Features & Benefits
■ DB25 port provides an easy connection to a
rack of 8B signal conditioning modules
(4, 8, or 16 ch panels supported)
■ Cables available for input from 8B, 7B, 5B, or
3B signal conditiong modules
■ High-resolution 16-bit A/D
■ Fast scanning of all channels in 8mS
■ 3-way isolation and surge suppression
■ Configurable integration/totalization function
with non-volatile memory
■ Dual-format 16/32-bit data registers
■ Scaling registers on all channels
■ Configurable sample averaging
■ Automatic calibration and self-test
■ User-adjustable TCP Ports 1-99,999 for
advanced network configuration
■ Web browser configuration with copy utility
for fast setup
Performance Specifications
Accuracy
958EN-4016: Less than 0.05% of range.
958EN-4C16: Less than 0.10% of range.
Input Impedance
4M ohms.
Operating Temperature and Humidity Ranges
958EN-4016: -40 to 70°C (-40 to 158°F).
958EN-4C16: 0 to 55°C (32 to 131°F).
Relative humidity: 5 to 95%, non-condensing.
Isolation
3-way isolation of I/O, power, network circuits.
Peak: 1500V AC, ANSI/ISA-82.01-1988.
Continuous: 250V AC, 354V DC.
Ordering Information
◆ I/O Modules
958EN-4016 {industrial-grade}
16-ch voltage input module with integrator
958EN-4C16 {commercial-grade*}
16-ch voltage input module
* CE approval only, no integrator function
◆ Accessories
Industrial Ethernet Switches
See Page 25.
Hardware Accessories and Power Supplies
See Page 26.
Software Support
See Page 27.
16-channel single-ended voltage input ◆ DB25 port for 8B 

modules ◆ Modbus TCP/IP communication
958EN Ethernet 8B Interface Modules (Analog Input)
958EN
with 8Bs
Standard model includes
cage clamp terminal blocks.
Optional terminals are
available (see Page 26).
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 13 –
8B Signal Conditioning Modules
High-density isolation amplifiers ◆ Parallel interface 

connects to 958EN Ethernet Analog Input Modules
Description
This new line of high-density isolated signal
conditioners provides 17 family groups with a
total of 102 models that interface to a wide
variety of voltage, current, temperature, position,
frequency, and strain measuring devices. Housed
in a package only one-fifth the size of competing
products, the 8B module series offers instrument-
class performance with superior specifications
for accuracy, linearity, filtering, isolation, output
noise and much more.
Key Features & Benefits
■ ±0.05% accuracy
■ ±0.02% linearity
■ 1500Vrms isolation
■ 3- to 5-pole low-pass filter
■ 120dB CMR
■ ANSI/IEEE C37.90.1 transient protection
■ Field I/O protection from 30 to 240V AC
continuous
■ -40°C to 85° operating temperature range
■ CE compliant
■ UL/cUL listing pending for Class 1, Division 2
Applications
■ Systems requiring high channel-to-channel
isolation, noise rejection, surge suppression,
and amplification
■ Designed for front-end signal conditioning or
embedded applications:
■ DCS, PLC, controllers, data acquisition, remote
I/O, recorders, etc.
■ On-board embedded OEM applications
■ Protects equipment, increases accuracy, and
installs/expands easily
■ Low-cost, high-density amplifier system
Ordering Information
NOTE: Please refer to Acromag Bulletin #8400-479 or
visit  for full ordering information.
◆ Input Modules
– Current input
– Voltage input; 1kHz, 20kHz, or narrow bandwidth
– RTD input; linearized; 2-, 3-, or 4-wire RTD
– Thermocouple input; linearized or non-linearized
– Strain gage input; wide or narrow bandwidth
– Potentiometer input
– Frequency input
◆ Accessories
– 2-, 4-, 8-, and 16-position analog I/O backpanels
– Power supplies
– Interface cables
– 19-Inch metal mounting rack
8Bs also connect to EtherStax analog I/O modules
(ES2151, ES2152, ES2153, ES2162, ES2172 models)
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
High-performance OPC Server for all Acromag Ethernet I/O 

◆ Low-cost server exclusively for Acromag I/O
ACMBTCP-OPC Modbus/TCP Master OPC DA Server
Description
Acromag’s Modbus/TCP Master OPC DA
Server delivers high-speed connectivity to
all Acromag Modbus TCP/IP slave devices
via Ethernet. This server is designed for
all local or remote OPC clients such as
HMI, SCADA, operator interface and
custom-built (Visual Basic ® , Visual C++ ® )
applications.
This OPC server offers the most reliable,
cost effective and comprehensive features
list available in the OPC/HMI market today.
Our unique read/write tag optimization
algorithms provide unmatched data
transfer speeds between OPC server and
hardware devices.
Acromag’s OPC server has passed the
OPC Foundation’s OPC Data Access 3.00
compliance test.
This server includes comprehensive,
context-sensitive help systems, Visual Basic
OPC client example application with Visual
Basic source code, and a pre-built client
executable.
Compatible With Leading
HMI and SCADA Packages
Acromag’s Data Access Server can be
used as a data server to any HMI or
SCADA package that is OPC compliant.
Additionally, the online help system will
guide you through the configuration for
popular packages from Wonderware,
Inlution, Rockwell, GE, and others.
Key Features & Benefits
■ Runs on Windows ® XP, Vista, 7,
2003 Server, 2008 Server
■ Designed exclusively for use with all
Acromag Modbus/TCP Ethernet devices
■ OPC compliance tested
■ Unlimited OPC clients, devices, or items
■ Supports OPC custom and automation
interfaces such as Visual Basic and C++
■ Easy CSV import / export capability
■ Modbus packet optimization for fast
transactions
■ Runs as a stand-alone executable or
unattended with no login required
■ Device status dialog for easy diagnostics
Free 30-day Trial Version
Download a no-risk demonstration version
and try it free for 30 days. Once you see
how easy it is and the robust functionality,
you can quickly convert the trial version to
a full product license.
Ordering Information
ACMBTCP-OPC*
Modbus/TCP Master OPC DA Server.
Only available online at /OPC
Free 30-day Trial*
Download a no-risk 30-day demonstration
version at /OPC
* NOTE:  This software package is only for use
with Acromag Ethernet I/O modules. It cannot
be used with third-party instrumentation.
Bulletin #8400-583
Ethernet I/O: Software Support
All trademarks are the property of their respective 

owners. Copyright © Acromag, Inc. 2010. Data subject to 

change without notice. Printed in USA 3/2010.
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Easy PC-based communication to Acromag BusWorks and 

EtherStax I/O ◆ Modbus/TCP or Modbus/RTU
AMXX Series ActiveX / .NET Controls for Modbus I/O
Description
Acromag’s AMXX Series software controls
provide a fast, easy way to communicate
with any Modbus/RTU or Modbus/TCP
slave devices connected to your PC’s serial
or network ports. Within minutes, your
Visual Basic, Visual C, .NET, Excel, or other
compatible applications will be talking
Modbus protocol.
AMRX Modbus/RTU ActiveX Control
The AMRX package is an easy to use
ActiveX control that provides a convenient
way to communicate to Modbus/RTU slave
devices. It also includes a timer for polled
data acquisition and a floating point
conversion ActiveX control.
AMRN Modbus/RTU Forms Control
AMRN is a simple Windows Forms Control
that provides a quick way to communicate
with Modbus/RTU slave devices connected
to your PC’s serial port.
AMTX Modbus/TCP ActiveX Control
AMTX is an easy to use ActiveX control
that simplifies communication with
Modbus/TCP slave devices connected to
your PC’s wired or wireless network.
AMTN Modbus/TCP Forms Control
AMTN is an easy to use Windows Forms
Control for Modbus/TCP to communication
with slave devices connected to your PC’s
Ethernet port. It can be used on a form or
optionally without a form.
Demonstration Programs
Demonstration versions are available. The
demos are complete operating ActiveX
controls that have a time limit. After 60-90
minutes, communication functions will be
disabled. Re-starting the application will
initiate another functional demonstration
period.
Key Features & Benefits
■ Any container application that can
embed ActiveX controls can use the
AMXX software packages
■ At design time, you can access your
Modbus device from the software’s test
property page
■ Property page device access makes
start-up and troubleshooting a snap –
all without writing a single line of code
■ Talking to a Modbus slave is as simple
as calling a function with the necessary
arguments
■ The software automatically builds the
command, appends a CRC, sends the
request over the network, and validates
the response
■ Your program just reads and writes
simple 16-bit data values
■ ActiveX controls include a help file and
examples for Excel, Visual Basic, C++
■ .NET controls include a help file and
examples for Visual Basic, C#, and
Managed C++
Bulletin #8400-584b
Ethernet I/O: Software Support
All trademarks are the property of their respective 

owners. Copyright © Acromag, Inc. 2010. Data subject to 

change without notice. Printed in USA 2/2011.
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
All trademarks are the property of their respective 

owners. Copyright © Acromag, Inc. 2010. Data subject to 

change without notice. Printed in USA 2/2011.
Ethernet I/O: Software Support
Ordering Information
AMRX-CD
Modbus/RTU ActiveX Control,
Single Development Site License (on CD-ROM).
AMRN-CD
Modbus/RTU Windows Forms Control,
Single Development Site License (on CD-ROM).
AMTX-CD
Modbus/TCP ActiveX Control,
Single Development Site License (on CD-ROM).
AMTN-CD
Modbus/TCP Windows Forms Control,
Single Development Site License (on CD-ROM).
By purchasing a single development site license
you may install the software and develop your
application on a single PC and distribute it with
your compiled application program royalty free
an unlimited number of times. When used in a
Microsoft Excel, Word, PowerPoint or other non-
compiling end-user application program where
full development capabilities are always present,
a separate license file must be purchased and
installed on each computer that the end-user
application program is installed and running on.
Please see the EULA included with the demo for
complete licensing information.
Controls Protocols Visual Studio 6.0 Visual Studio 

2005/2008/2010 Windows Compatible Products
Model
Modbus/RTU
(RS-485)
Modbus/TCP
(Ethernet)
Visual Basic
(VB6)
Visual C++
(VC6)
Visual Basic
(.NET)
Visual C++
(.NET)
Visual C#
(.NET)
Excel 32-bit 64-bit 900MB
900EN
ES2000
AMRX • • • • • •
AMRN • • • • • • •
AMTX • • • • • •
AMTN • • • • • • •
Software Controls Selection Guide
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 27 –
Universal support for five operating systems ◆ C source 

code provided ◆ Demo program included
Description
Acromag’s Modbus C Library software greatly
simplifies development of programs to inter-
face with Acromag’s BusWorks ® and EtherStax ®
Ethernet I/O products. The library also supports
any standard Ethernet Modbus slave device that
communicates via Modbus TCP/IP or UDP/IP
protocol. This utility is ideal for developers that
are unfamiliar with Modbus protocol or the
framing of TCP/IP or UDP/IP messages.
The C library makes programming easy and
portable by simply linking user code with the
provided function calls (below). Most function
calls require passing only a few parameters such
as the IP address, Modbus register address, and
register count.
Codes Functions
01 (01H) Read Coil (Output) Status
02 (02H) Read Input Status
03 (03H) Read Holding Registers
04 (04H) Read Input Registers
05 (05H) Force Single Coil (Output)
06 (06H) Preset Single Register
15 (0FH) Force Multiple Coils (Outputs)
16 (10H) Preset Multiple Registers
17 (11H) Report Slave ID
Example Program
The included example program is menu-driven
to help users build Modbus TCP/IP and UDP/IP
commands. Menu selections let users configure,
read, and write Ethernet I/O slave devices such as
Acromag’s BusWorks and EtherStax products.
Users may also leverage this demonstration
application into a tool for configuration or test
by supplying commands and/or data values in the
form of a text file. The program will execute each
command in the text file as if it had been typed
from the console terminal.
Key Features & Benefits
■ Library of function routines simplify communi-
cation with I/O modules
■ Function calls provided for a variety of operat-
ing systems
■ C source code supplied
■ Demonstration program included
■ Saves development time
■ Ideal for use with Acromag’s BusWorks and
EtherStax I/O modules
■ Compatible with any standard Modbus TCP/IP
or UDP/IP device
Ordering Information
ESW-MBLIB
Ethernet Modbus C Library Software (CD-ROM)
ESW-MBLIB Ethernet Modbus C Library Software
248-295-0880 ■  ■  ■  ■ 30765 S Wixom Rd, Wixom, 

MI 48393 USA
Ethernet I/O: BusWorks ® Series
– 25 –
900EN-S005 Ethernet Switches
Acromag’s five-port Ethernet switch is designed
for use in industrial applications. Rugged con-
struction and a variety of security features ensure
reliable operation under demanding conditions.
Internal inligence enables “connect and go”
operation for fast and easy network installation
with auto-negotiation of data rate, flow control,
and crossover signal compatibility. No configura-
tion is necessary when the 900EN-S005 is used
as a simple switch with Acromag I/O modules.
For advanced users, this switch offers numer-
ous control functions that are easily configured
through DIP-switch settings or programmed
using your computer.
■ Five shielded RJ-45 sockets, 8-pin,
10Base-T / 100Base-TX
■ 1500V port-to-port isolation
■ Redundant power support
■ -25 to 70°C operating range
■ CE, ATEX marked. UL, cUL listed,
Class I; Div. 2; Groups A, B, C, D.
.
EIS Series Ethernet Switches
Models
EIS-358: 8-port (Cu), redundancy, unmanaged
EIS-408: 8-port (Cu/fiber), redundancy, managed
EIS series switches are designed for harsh envi-
ronments. They feature a rugged IP30 aluminum
case, 300,000 hour MTBF, and power supply
redundancy for dependable networking.
Managed operation
With web-based setup, managed switches ensure
easy installation and maintenance. Managed
switches also support many powerful Ethernet
features such as port VLAN, Quality of Service
(QoS), Internet Group Management Protocol
(IGMP) Snooping, and failure alarms.
Self-healing redundant ring capability
Some models employ redundancy to provide self-
recovery if the primary communication path fails.
Redundant ring technology instantly reconfigures
to provide an alternate path. The fast recovery
time protects mission-critical applications from
interruptions and temporary malfunctions.
■ Ultra-fast redundant ring technology (<300mS)
supports STP, RSTP and proprietary protocols
■ -10 to 70°C operating temperature range
■ Port-to-port isolation (1200V AC)
■ Built-in RFI/EMI and surge/transient protection
Ordering Information
◆ Switches
For more information please visit .
900EN-S005
Ethernet switch, 5-port Copper
EIS-358
Ethernet switch with redundancy, 8-port Copper
EIS408FX-M
Ethernet switch with redundancy, 6 Cu / 2 Fiber-optic,
multi-mode fiber (up to 2 km).
EIS-408FX-S
Ethernet switch with redundancy, 6 Cu / 2 Fiber-optic,
single-mode fiber (up to 30 km).
◆ Accessories
Hardware Accessories and Power Supplies
See Page 26.
◆ 8-Port Switch, Managed, FX ◆ 8-Port Switch, Unmanaged 

◆ 5-Port Switch, Unmanaged
900EN Series, EIS Series Industrial Ethernet Switches
These low-cost multi-
channel I/O modules
are ideal for remote
I/O applications with
limited space and
those requiring a
handful of channels
in many locations.
BusWorks ® I/O Modules
for Modbus-RTU
Acromag’s BusWorks 900MB series is
a collection of analog and discrete I/O
modules with Modbus-RTU network
communication. BusWorks modules are
ideal for a wide variety of distributed I/O
applications including data acquisition,
control, process monitoring, and test &
measurement.
Analog input modules accept DC current,
voltage, or temperature sensor signals
and feature local limit alarm capabilities.
Analog output modules provide DC
current or voltage signals for local
displays, recorders, variable frequency
drives, valves, and other equipment.
Discrete I/O modules monitor and/or
control on/off status of industrial devices.
Windows ® configuration software simpli-
fies module setup with easy selection of
input/output ranges, alarm setpoints, and
other operating parameters.
All 900MB Modbus I/O modules com-
municate over a high-speed RS-485 net-
work supporting data transfer rates up to
115K baud.
Inputs
• Thermocouple • DC voltage
• RTD/Resistance • DC current
• Millivolt  • AC current
• Frequency  • Discrete status
Outputs
• DC voltage
• DC current
• Discrete switches or local limit alarms
Power
• 10-36V DC
• 24V AC
Approvals
• CE, UL/cUL Class I Div 2 Groups ABCD
For more information, visit our website at
/modbus
10
Call 877-214-6267 or 248-295-0880 for technical 

assistance.
MODBUS-RTU: REMOTE I/O
  
60
9 0 0 M B S e r i e s
Modbus I/O BusWorks ®
913/914MB
Multi-Channel
Analog Input
Modules
DC Current,
DC Voltage or
AC Current Input
Limit Alarms or
Discrete Outputs
Models
913MB: 4 current input channels
914MB: 4 voltage input channels
Input Ranges
0 to 20mA DC,
±10V DC,
0 to 20A AC (with 5020-350 sensor)
Output
Four output channels:
Open-drain MOSFETs (1A DC loads)
0 to 35V DC
Network Communication
Modbus-RTU high-speed RS-485
Power Requirement
10 to 36V DC,
24V AC
Approvals
CE marked. UL, cUL listed
Class I; Division 2; Groups A, B, C, D.
I Description
This signal conditioner is a four-channel analog
input module with four discrete outputs. It
provides isolation between input, output, power,
and network circuits. Network communication
adheres to the industry-standard RS-485 Modbus
RTU protocol. AC and DC power sources are
supported with nonpolarized, diode-coupled
terminals.
The inputs accommodate wide DC voltage or
current ranges. Flexible discrete outputs operate
as alarms or on/off controllers. As limit alarms,
each discrete output can be configured with high
and/or low setpoints exclusively tied to an analog
input channel. Alarm trips function without host
communication enabling low-cost stand-alone
alarms, as well as local backup for the primary
control system. Otherwise, on/off control is
based on commands issued by the host system.
Combining flexible transmitter functions, mixed
signal I/O, alarm support, and a network inter-
face in a single package, makes this instrument
extremely powerful. Multi-channel design adds
cost-efficiency and allows high-density mounting.
Plus, safe, rugged construction makes these
modules reliable for use in both control room
and distributed field I/O applications. Custom
module configurations are also possible (consult
factory for details).
I Special Features
I Standard Modbus RTU protocol with high-speed
RS-485 communication (up to 115K bps)
I 16-bit sigma-delta A/D yields 0.1% of range
resolution and accuracy
I Four inputs in a single inch-wide module
reduces system costs and saves panel space
I Four discrete outputs enable local limit alarms
or host-controlled on/off switching
I Heavy-duty 1A solid-state relays provide
dependable on/off control of industrial devices
I Self-calibration lowers maintenance costs by
reducing periodic manual calibration checks
I Watchdog timers provide a configurable
failsafe output state for use when host
I/O communication is lost
I Four-way isolation eliminates potential ground
loops between power, input, output, and
network circuitry
I Self-diagnostics monitor microcontroller activity
to detect operational failures (lock-up) and
execute a reset to restore communication
Modbus
Four?
DC Current?
or?
DC Voltage?
Inputs RS-485
10-36V DC?
or 24V AC
Isolation
Four?
Discrete?
Outputs?
or?
Limit Alarms
Power
Outputs (4) Inputs (2)
Inputs (2)
DC Current/Voltage Input Module
TB1/TB2
IN+
IN-
Red
Black
1.35"
1.05"
0.375"
dia.
5020-350
AC Current Sensor Model 5020-350
For 913MB. Order separay (one per channel).
Modbus/RS-485
  
61
Modbus I/O
Modbus I/O BusWorks ®
Performance Specifications
General Input
Resolution
0.005% or 1 part in 20,000.
Noise Rejection
Normal mode: 40dB @ 60Hz, typical.
Common mode: 140dB @ 60Hz, typical.
Input Filter Bandwidth
-3dB at 3Hz, typical.
Input Conversion Rate
180ms per channel.
Current Input (913MB)
DC Current Input Ranges
Range user-configured. Range selected applies to all
channels.
0 to 1mA, 0 to 20mA, 4 to 20mA,
0 to 11.17mA (for use with 5020-350 AC sensor).
DC Current Input Resistance
49.9 ohms.
DC Current Input Accuracy
±0.1% of input range.
Voltage Input (914MB)
DC Voltage Input Ranges
Range user-configured. Range selected applies to all
channels.
±10V, ±5V, ±2.5V, ±1.25V,
±625mV, ±313mV, ±156mV, ±78mV
Input Impedance
110.5K ohms.
DC Voltage Input Accuracy
±0.1% of input range.
Discrete Output
Output Type
Four independent open drain MOSFET switches with a
common return that operate as low-side switches.
Output Voltage Range
0 to 35V DC.
External voltage source required.
Output Current Range
0 to 1A DC continuous for each output.
Output OFF Leakage Current
50µA maximum.
Output ON Resistance
0.15 ohms maximum.
Output Response Time
4.1ms typical, from receipt of command to gate
transition of the output MOSFET.
Operation
Digital outputs are set to their OFF state following a
software or power-on reset. Outputs can optionally
be set to user-defined states following a watchdog
timeout. Watchdog timeout output control takes pre-
cedence over limit alarm control. Alarm control takes
precedence over host control.
Communication
Supported Modbus Commands
The command/response protocol for communicating
with this module adheres to the Modbus/RTU standard
for the following Modbus Functions.
Read Coil (Output) Status
Read Holding Registers
Read Input Registers
Force Single Coil (Output)
Preset Single Register
Force Multiple Coils (Output)
Preset Multiple Registers
Report Slave ID
Reset Slave
LED Indicators
LEDs indicate power, status, and discrete level/alarm.
Power and Isolation
Power Requirements
10 to 36V DC or 22 to 26V AC.
Supply Current
Supply  Current Draw
10V DC 125mA maximum
24V DC 50mA maximum
24V AC 100mA rms maximum
Isolation
1500V AC for 60 seconds or 250V AC continuous.
4-way isolation between input, network, power, and
discrete I/O circuits. Inputs are isolated channel-to-
channel for common mode voltage to ±4V DC.
Ordering
Information
Models
913MB-0900
914MB-0900
DC current (913MB) or voltage ( 914MB) input module
Accessories
900C-SIP
Configuration Software Interface Package
(includes software CD-ROM for Windows, RS-232/485
converter, and RS-485/three-wire cable)
5034-225
USB-to-RS232 adapter. See page 68 for more info.
5020-350
AC current sensor for 913MB. One for each channel.
(See page 205)
TBK-B02
Optional terminal block kit, barrier strip style, 4 pcs.
TBK-S02
Optional terminal block kit, spring clamp style, 4 pcs.
PS5R-D24
Power supply (24V DC, 2.1A).
See Power Supplies on Page 199.
For more information on software, network hardware,
and mounting accessories, please see Pages 69-71.
TWO-WIRE TRANSMITTER
ANALOG INPUT
CONNECTIONS
TB1/TB2
IN+
DC
CURENT
(mA)
IN-
-
+
TB1/TB2
IN+
IN-
DIGITAL OUTPUTS
45 46
TB4
OUT3
RTN
DIGITAL OUTPUT
TB4
RTN
OUT2
OUT1
44 43 42 36 41
TB3
OUT0
11
TB1
12 13
IN0+
IN0-
14 15 16
IN1+
IN1-
INPUTS 0,1
TB2
21
IN3+
IN3-
25 26 24
IN2-
23
IN2+
22
INPUTS 2,3
D
COM
COM
D
RS485
33 34 35 31 32
A
B
PWR
TB3
TB1
ANALOG
INPUT
ANALOG
INPUT
TB2
AC/DC
POWER
NETWORK
COMMUNICATION
CURRENT INPUT
VOLTAGE
SOURCE
-
+
TB1/TB2
IN+
IN-
VOLTAGE INPUT
XMTR
2-WIRE
-
+
DIGITAL OUTPUT CONNECTIONS
UP TO
35V DC
MECHANICAL
RELAY INTERFACE
+
OUT 3
OUT
OUT 2
RTN
OUT 1
RTN
TB4
OUT
RTN
DIGITAL OUT
SHARES
RETURN
RTN
OUT
10 TO 36V DC
OR 24V AC
NON-POLARIZED
  
60
9 0 0 M B S e r i e s
Modbus I/O BusWorks ®
917/918MB
Multi-Channel
Analog Output
Modules
DC Current or
DC Voltage Outputs
Discrete Outputs
Models
917MB: 4 current output channels
918MB: 4 voltage output channels
Analog Output
917MB: 0 to 20mA, 4 to 20mA, 0 to 1mA DC
918MB: 0 to 10V, 0 to 5V, 0 to 1V DC
Discrete Output
Four output channels:
Open-drain MOSFETs (1A DC loads)
0 to 35V DC
Network Communication
Modbus-RTU high-speed RS-485
Power Requirement
12 to 36V DC (917MB), 10 to 36V DC (918MB),
24V AC
Approvals
CE marked. UL, cUL listed
Class I; Division 2; Groups A, B, C, D.
I Description
These modules drive four analog output channels
and also feature four discrete outputs for on/off
control. Isolation separates the output, power,
and network circuits. Network communication
adheres to the industry-standard RS-485 Modbus
RTU protocol. AC and DC power sources are
supported with nonpolarized, diode-coupled
terminals.
The analog outputs generate a signal based on
communication from the host. They accommo-
date wide DC voltage or current ranges.
Discrete outputs provide simple on/off switching
capability (open-drain) for external devices.
Combining analog outputs, on/off controllers,
and a network interface in a single package,
makes this instrument extremely powerful.
Multi-channel design adds cost-efficiency and
allows high-density mounting. Plus, safe, rugged
construction make it reliable for both control
room and distributed field I/O use in a broad
range of temperature control applications.
Custom module configurations are also possible
(consult factory for details).
I Special Features
I Standard Modbus RTU protocol with high-speed
RS-485 communication (up to 115K bps)
I 12-bit D/A yields 0.1% of span resolution and
accuracy
I Four analog outputs in an inch-wide module
reduces system costs and saves panel space
I Four discrete outputs enable host-controlled
on/off switching
I Heavy-duty 1A solid-state relays provide
dependable on/off control of industrial devices
I Self-calibration lowers maintenance costs by
reducing periodic manual calibration checks
I Watchdog timers provide a configurable
failsafe output state for use when host
I/O communication is lost
I Three-way isolation eliminates potential
ground loops between power, output, and
network circuitry
I Self-diagnostics monitor microcontroller activity
to detect operational failures (lock-up) and
execute a reset to restore communication
Modbus
Four?
Analog?
Outputs?
?
DC Current?
or?
DC Voltage
RS-485
10-36V DC?
or 24V AC
Isolation
Four?
Discrete?
Outputs
Power
Outputs (4) Outputs (2)
Outputs (2)
Analog Output Module
Modbus/RS-485
  
61
M o d b u s I / O
Modbus I/O BusWorks ®
I Performance
I General Analog Output
Resolution
See current/voltage output specifications for more
information.
Ambient Temperature Effect
Better than ±0.001% of output span per °C, or
±1.0uV/°C, whichever is greater.
Ambient Temperature
Operation (917MB): -25°C to 60°C* (-13°F to 140°F*).
Operation (918MB): -25°C to 70°C (-13°F to 158°F).
Storage: -40°C to +85°C (-40°F to +185°F).
* Limit 917MB maximum ambient to 50°C (122°F)
when using supply voltages less than 15V DC.
I Current Output (917MB)
DC Current Output Ranges
Range user-configured. Range selected applies to all
channels.
Output Range Resolution Accuracy (% span)
0 to 1mA 0.554% ±2.0% (±0.002mA)
0 to 20mA 0.028% ±0.1% (±0.02mA)
4 to 20mA 0.035% ±0.1% (±0.02mA)
Maximum Output Current
22.5mA DC typical.
Integral Non-Linearity
±0.1% of span or ±2 LSB typical, whichever is larger,
for spans equal to or greater than 16mA.
Output Compliance
12V minimum, 12.7V typical.
Output Load Resistance Range
0 to 630 ohms typical.
Response Time
11ms typical into 500 ohms, for measurement to
reach 98% of the final value in response to a step
command. Actual response time will vary with load.
I Voltage Output (918MB)
DC Voltage Output Ranges
Range user-configured. Selection applies to all channels.
Output Range Resolution Accuracy (% span)
0 to 1V 0.274% ±0.6% (±6mV)
0 to 5V 0.055% ±0.1% (±5mV)
0 to 10V 0.027% ±0.1% (±10mV)
Maximum Output Voltage
11.255V DC typical.
Integral Non-Linearity
±0.1% of span or ±2 LSB typical, whichever is larger,
for spans equal to or greater than 5V.
Output Current
0 to 10mA DC maximum.
Output Impedance
1 ohm.
Output Short Circuit Protection
Included.
Response Time
110µs rise time typical, 150µs fall time typical,
unloaded, for output to reach 98% of the final value
in response to a step command. Time varies with load.
I Discrete Output
Output Type
Four independent open drain MOSFET switches with a
common return that operate as low-side switches.
Output Voltage Range
0 to 35V DC (up to 1A/channel continuous).
External voltage source required.
Output ON Resistance
0.15 ohms maximum.
Operation
Digital outputs are set to their OFF state following a
software or power-on reset. Outputs may be set to
user-defined states following a watchdog timeout.
Watchdog timeout output control takes precedence
over limit alarm control. Alarm control takes prece-
dence over host control.
Output Response Time
4.1ms typical, from receipt of command to gate
transition of the output MOSFET.
I Communication
Supported Modbus Commands
The command/response protocol for communicating
with this module adheres to the Modbus/RTU standard
for the following Modbus Functions.
Read Coil (Output) Status Report Slave ID
Read Holding Registers Reset Slave
Read Input Registers
Force Single Coil (Output)
Preset Single Register
Force Multiple Coils (Output)
Preset Multiple Registers
LED Indicators
LEDs indicate power, status, and discrete level/alarm.
I Power and Isolation
Power Requirements
10 to 36V DC (918MB), 12 to 36V DC (917MB)
22 to 26V AC.
Supply Current
Supply Current Draw (917) Current Draw (918)
10V DC Not Recommended 100mA maximum
12V DC 275mA maximum 85mA maximum
24V DC 120mA maximum 45mA maximum
24V AC 210mA rms max. 85mA rms max.
Isolation
1500V AC for 60 seconds or 250V AC continuous.
3-way isolation between outputs, network, and power
circuits.
I Ordering
Information
Models
917MB-0900
918MB-0900
DC current (917MB) or voltage (918MB) output module
Accessories
900C-SIP
Configuration Software Interface Package
(includes software CD-ROM for Windows, RS-232/485
converter, and RS-485/three-wire cable)
4001-095
USB-to-RS232 adapter. See page 70 for more info.
TBK-B02
Optional terminal block kit, barrier strip style, 4 pcs.
TBK-S02
Optional terminal block kit, spring clamp style, 4 pcs.
PS5R-D24
Power supply (24V DC, 2.1A).
See Power Supplies on Page 199.
For more information on software, network hardware,
and mounting accessories, please see Pages 69-71.
DC CURRENT OUTPUT
ANALOG OUTPUT
CONNECTIONS
DIGITAL OUTPUTS
45 46
TB4
OUT3
RTN
DIGITAL OUTPUT
TB4
RTN
OUT2
OUT1
44 43 42 36 41
TB3
OUT0
D
COM
COM
D
RS485
33 34 35 31 32
A
B
PWR
TB3
TB1
ANALOG?
OUTPUT
ANALOG?
OUTPUT
TB2
AC/DC?
POWER
NETWORK?
COMMUNICATION
DC VOLTAGE OUTPUT
TB1
I0+
RTN
12 11
ANALOG OUTPUTS
13
RTN
I1+
RTN
14 15
ANALOG OUTPUTS
16
RTN
TB2
21 22
I2+
RTN
I3+
RTN
23 24
RTN
26 25
RTN
TB1
V0+
RTN
12 11
ANALOG OUTPUTS
13
RTN
V1+
RTN
14 15
ANALOG OUTPUTS
16
RTN
TB2
21 22
V2+
RTN
V3+
RTN
23 24
RTN
26 25
RTN
TB1/TB2
+
L
R
I
TB1/TB2
+
L
R
WIRING CONNECTIONS
SAME AS 913/914MB
10 TO 36V DC?
OR 24V AC?
NON-POLARIZED
I+
RTN
V+
RTN
  
62
9 0 0 M B S e r i e s
Modbus I/O BusWorks ®
924MB
Multi-Channel
Temperature
Control Modules
Thermocouple or
Millivolt Input
Limit Alarms or
Discrete Outputs
Model
924MB: 4 input channels
Input
Four input channels:
Thermocouple (types J, K, T, R, S, E, B, N),
±100mV DC
Output
Four output channels:
Open-drain MOSFETs (1A DC loads)
0 to 35V DC
Network Communication
Modbus-RTU high-speed RS-485
Power Requirement
10 to 36V DC,
24V AC
Approvals
CE marked. UL, cUL listed
Class I; Division 2; Groups A, B, C, D.
I Description
This signal conditioner is a four-channel analog
input module with four discrete outputs. It filters
and linearizes thermocouple inputs while provid-
ing isolation between input, output, power, and
network circuits. Cold junction compensation
and upscale/downscale sensor break detection
are standard. AC and DC power sources are sup-
ported with nonpolarized, diode-coupled termi-
nals.
The programmable inputs accommodate eight
thermocouple types plus wide-range millivolt
signals. Flexible discrete outputs operate as
alarms or on/off controllers. As limit alarms, each
discrete output can be configured with high
and/or low setpoints exclusively tied to an analog
input channel. Alarm trips function without host
communication enabling low-cost stand-alone
alarms as well as local backup for the primary
control system. Otherwise, on/off control is
based on commands issued by the host system.
Combining flexible transmitter functions, mixed
signal I/O, alarm support, and a network inter-
face in a single package, makes this instrument
extremely powerful. Multi-channel design adds
cost-efficiency and allows high-density mounting.
Plus, safe, rugged construction makes these
modules reliable for use in both control room
and distributed field I/O applications. Custom
module configurations are also possible (consult
factory for details).
I Special Features
I Standard Modbus RTU protocol with high-speed
RS-485 communication (up to 115K bps)
I 16-bit sigma-delta A/D yields 0.1°C resolution
and 0.5°C measurement accuracy
I Thermocouple linearization and sensor break
detection ensure reliable measurements
I Four discrete outputs enable local temperature
limit alarms or host-controlled on/off switching
I Heavy-duty 1A solid-state relays provide
dependable on/off control of industrial devices
I Self-calibration lowers maintenance costs by
reducing periodic manual calibration checks
I Watchdog timers provide a configurable
failsafe output state for use when host
I/O communication is lost
I Four-way isolation eliminates potential ground
loops between power, input, output and
network circuitry
I Self-diagnostics monitor microcontroller activity
to detect operational failures (lock-up) and
execute a reset to restore communication
Modbus
Four?
Thermocouple?
or?
DC Millivolt?
Inputs RS-485
10-36V DC?
or 24V AC
Isolation
Four?
Discrete?
Outputs?
or?
Limit Alarms
Power
Outputs (4) Inputs (2)
Inputs (2)
Thermocouple/Millivolt Input Module
Modbus/RS-485
  
63
M o d b u s I / O
Modbus I/O BusWorks ®
I Performance
I General Input
Resolution
±100mV DC input: 0.1%.
Thermocouple input: 0.1°C (0.18°F).
Ambient Temperature Effect
Better than ±0.005% of input span per °C, or
±1.0uV/°C, whichever is greater.
Noise Rejection
Normal mode: 40dB @ 60Hz, typical.
Common mode: 140dB @ 60Hz, typical.
Input Filter Bandwidth
-3dB at 3Hz, typical.
Input Conversion Rate
90ms per channel.
I Thermocouple Input
Thermocouple Input Ranges
Thermocouple type user-configured. Type selected
applies to all channels. Signal linearization, cold-junc-
tion compensation, and open circuit or lead break
detection are included.
TC °C Range (°F Range) Accuracy
J -210 to 760°C (-346 to 1400°F) ±0.5°C
K -200 to 1372°C (-328 to 2502°F) ±0.5°C
T -260 to 400°C (-436 to 752°F) ±0.5°C
R -50 to 1768°C (-58 to 3214°F) ±1.0°C
S -50 to 1768°C (-58 to 3214°F) ±1.0°C
E -200 to 1000°C (-328 to 1832°F) ±0.5°C
B 260 to 1820°C (500 to 3308°F) ±1.0°C
N -230 to 1300°C (-382 to 2372°F) ±1.0°C
Note 1: Accuracy is given with CJC switched off.
Relative inaccuracy with CJC enabled may increase
by ±0.5°C.
Thermocouple Break Detection
TC sensor failure can be configured for either upscale
or downscale. Selection applies to all channels.
I DC Millivolt Input
Millivolt Input Ranges
±100mV DC.
Millivolt Input Accuracy
±0.1% of input range.
I Discrete Output
Output Type
Four independent open drain MOSFET switches with a
common return that operate as low-side switches.
Output Voltage Range
0 to 35V DC, 1A DC maximum for each output.
External voltage source required.
Output ON Resistance
0.15 ohms maximum.
Operation