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Product short description:
  • 4 analog inputs
  • 2 analog output
  • 6 discrete I/O channels
  • Ethernet/IP, Modbus TCP/IP
  • i2o peer-to-peer available for Modbus TCP/IP only

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.

951EN, 952EN: Ethernet Analog and Discrete I/O Modules Description

951EN: Combo module, analog current inputs
952EN: Combo module, analog voltage inputs

These Ethernet analog and discrete I/O 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 isolation 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. Available for Modbus TCP/IP communication only. Read more about peer-to-peer i2o function.

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.
Modbus TCP/IP, (i2o® peer-to-peer available for Modbus TCP/IP only).
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.

Learn more about the 900EN Series and view all models >

951EN, 952EN: Ethernet Analog and Discrete I/O Modules Features & Benefits

  • Configurable from a standard web browser
  • EtherNet/IP or Ethernet Modbus TCP/IP communication with automatic 10/100Mbps negotiation
  • i2o function (available ONLY with Modbus TCP/IP) enables direct input-to-output communication without a network controller
  • Multi-function, multi-channel stand-alone module is very economical
  • High-resolution 16-bit sigma-delta 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 configurable 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: -25°C to 70°C (-13° to 158°F)
  • Approvals: CE/ATEX marked; UL, cUL listed, Class 1 Div 2 Groups A, B, C, D; EtherNet/IP, Modbus/TCP conformance tested.
How to Connect Ethernet I/O Modules with RadioLinx Ethernet Modems - 8500770
Connecting Acromag Series 900EN I/O Modules to an existing network with RadioLinx Ethernet Modems Background – IP Addresses Any TCP/IP packet contains two addresses: a unique fixed MAC address, and a unique IP address. To communicate on the Internet, computers must have unique identifiers in order to differentiate one computer from another. This is accomplished...
How to Monitor a Remote Geothermal Steam Well for Power Generation - 8400965
Defining the Problem: Operations at a remote geothermal steam well are monitored by a PLC from the power plant. C&I personnel need to transmit conditions from the wellsite to the control room 2km away. A wireless communications network is available for Ethernet remote I/O. The modules can be installed at the wellsite for telemetry purposes....
How to Communicate with Modbus/TCP Modules from Ignition Software - 8501121
Setting Up and Communicating with Acromag Series 9xxEN-40xx and XTxxx1-xxx Modbus/TCP Modules and EtherStax™ Modbus/TCP from Ignition Software This document illustrates a procedure for configuring OPC tags intended for Acromag BusWorks® Series Modbus/TCP modules using Windows software from Inductive Automation. It is assumed that the user has a working knowledge of OPC, Modbus TCP, and...
How to Connect to Acromag Ethernet I/O Devices - 8500815
Getting Connected to Acromag Ethernet I/O Devices These instructions summarize the basic steps you will have to take in order to initially connect an Acromag Ethernet I/O product to your Personal Computer (PC) or laptop. To connect an Ethernet device to your PC, consult with your network administrator. Either temporarily change the TCP/IP configuration of...
How to Connect Acromag 900EN Ethernet Modules to Your PC - 8500734
Connecting Acromag Series 900EN Ethernet Modules to Your PC Objective: The purpose of this document is to provide a procedure for assigning a unique IP address to a second network interface card installed in a personal computer for the purpose of communicating with an Acromag Series 9xxEN Ethernet I/O Module. A procedure for accomplishing IP address...
How to Communicate to Ethernet Modules in an Allen Bradley ControlLogix System - 8400495
Communicating to Acromag BusWorks Series 9xxEN-6xxx and XTxxx2-xxx Ethernet Modules in an Allen Bradley ControlLogix System Objective: This document illustrates a procedure for integrating the Acromag Series XTxxx2, and 9xxEN-6xxx modules into the Allen Bradley control system as a third-party generic module. The reference model for this procedure is the Model 961EN-6006. It is assumed...
ESW-MBLIB: Ethernet Modbus C Library Software Information Page (Log in to download the file)
AMTx: Modbus TCP/IP Software Information Page (Log in to download the file)
Ethernet IP EDS for 9xxEN-6xxx Modules (Log in to download the file)
  • Compare

    5020-350: Toroidal AC Current Sensor

    • AC Current Sensor to precondition an AC current input signal
    • Highly accurate toroidal instrument transformer that converts an AC current signal to a safe, low level, DC milliampere signal (0 to 11.17mA).
    Select options
  • Compare

    5035 Series: Ethernet Cables

    • Ethernet straight cable, CAT5
    • Ethernet crossover cable, CAT5E
    • Low EMI Double-Shielded Ethernet Patch Cable
    Select options

Additional information

Weight 5 oz
Dimensions 4.5 × 1.5 × 5 in
Product Number

951EN-4012: Modbus TCP/IP and i2o protocol, current, 951EN-6012: EtherNet/IP, current, 952EN-4012: Modbus TCP/IP and i2o protocol, voltage, 952EN-6012: EtherNet/IP, voltage

Communication

Ethernet/IP, i2o Peer-to-Peer, Modbus TCP/IP

Power

DC Power

Product Series

BusWorks 900EN Series

Configuration

Built-in Web pages

  • Description

    951EN, 952EN: Ethernet Analog and Discrete I/O Modules Description

    951EN: Combo module, analog current inputs
    952EN: Combo module, analog voltage inputs

    These Ethernet analog and discrete I/O 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 isolation 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. Available for Modbus TCP/IP communication only. Read more about peer-to-peer i2o function.

    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.
    Modbus TCP/IP, (i2o® peer-to-peer available for Modbus TCP/IP only).
    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.

    Learn more about the 900EN Series and view all models >

    951EN, 952EN: Ethernet Analog and Discrete I/O Modules Features & Benefits

    • Configurable from a standard web browser
    • EtherNet/IP or Ethernet Modbus TCP/IP communication with automatic 10/100Mbps negotiation
    • i2o function (available ONLY with Modbus TCP/IP) enables direct input-to-output communication without a network controller
    • Multi-function, multi-channel stand-alone module is very economical
    • High-resolution 16-bit sigma-delta 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 configurable 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: -25°C to 70°C (-13° to 158°F)
    • Approvals: CE/ATEX marked; UL, cUL listed, Class 1 Div 2 Groups A, B, C, D; EtherNet/IP, Modbus/TCP conformance tested.
  • Tech Papers

    How to Connect Ethernet I/O Modules with RadioLinx Ethernet Modems - 8500770
    Connecting Acromag Series 900EN I/O Modules to an existing network with RadioLinx Ethernet Modems Background – IP Addresses Any TCP/IP packet contains two addresses: a unique fixed MAC address, and a unique IP address. To communicate on the Internet, computers must have unique identifiers in order to differentiate one computer from another. This is accomplished...
    How to Monitor a Remote Geothermal Steam Well for Power Generation - 8400965
    Defining the Problem: Operations at a remote geothermal steam well are monitored by a PLC from the power plant. C&I personnel need to transmit conditions from the wellsite to the control room 2km away. A wireless communications network is available for Ethernet remote I/O. The modules can be installed at the wellsite for telemetry purposes....
    How to Communicate with Modbus/TCP Modules from Ignition Software - 8501121
    Setting Up and Communicating with Acromag Series 9xxEN-40xx and XTxxx1-xxx Modbus/TCP Modules and EtherStax™ Modbus/TCP from Ignition Software This document illustrates a procedure for configuring OPC tags intended for Acromag BusWorks® Series Modbus/TCP modules using Windows software from Inductive Automation. It is assumed that the user has a working knowledge of OPC, Modbus TCP, and...
    How to Connect to Acromag Ethernet I/O Devices - 8500815
    Getting Connected to Acromag Ethernet I/O Devices These instructions summarize the basic steps you will have to take in order to initially connect an Acromag Ethernet I/O product to your Personal Computer (PC) or laptop. To connect an Ethernet device to your PC, consult with your network administrator. Either temporarily change the TCP/IP configuration of...
    How to Connect Acromag 900EN Ethernet Modules to Your PC - 8500734
    Connecting Acromag Series 900EN Ethernet Modules to Your PC Objective: The purpose of this document is to provide a procedure for assigning a unique IP address to a second network interface card installed in a personal computer for the purpose of communicating with an Acromag Series 9xxEN Ethernet I/O Module. A procedure for accomplishing IP address...
    How to Communicate to Ethernet Modules in an Allen Bradley ControlLogix System - 8400495
    Communicating to Acromag BusWorks Series 9xxEN-6xxx and XTxxx2-xxx Ethernet Modules in an Allen Bradley ControlLogix System Objective: This document illustrates a procedure for integrating the Acromag Series XTxxx2, and 9xxEN-6xxx modules into the Allen Bradley control system as a third-party generic module. The reference model for this procedure is the Model 961EN-6006. It is assumed...
  • Specs & Data Sheets

  • Software

    ESW-MBLIB: Ethernet Modbus C Library Software Information Page (Log in to download the file)
    AMTx: Modbus TCP/IP Software Information Page (Log in to download the file)
    Ethernet IP EDS for 9xxEN-6xxx Modules (Log in to download the file)
  • Accessories

    • Compare

      5020-350: Toroidal AC Current Sensor

      • AC Current Sensor to precondition an AC current input signal
      • Highly accurate toroidal instrument transformer that converts an AC current signal to a safe, low level, DC milliampere signal (0 to 11.17mA).
      Select options
    • Compare

      5035 Series: Ethernet Cables

      • Ethernet straight cable, CAT5
      • Ethernet crossover cable, CAT5E
      • Low EMI Double-Shielded Ethernet Patch Cable
      Select options
  • Additional information

    Additional information

    Weight 5 oz
    Dimensions 4.5 × 1.5 × 5 in
    Product Number

    951EN-4012: Modbus TCP/IP and i2o protocol, current, 951EN-6012: EtherNet/IP, current, 952EN-4012: Modbus TCP/IP and i2o protocol, voltage, 952EN-6012: EtherNet/IP, voltage

    Communication

    Ethernet/IP, i2o Peer-to-Peer, Modbus TCP/IP

    Power

    DC Power

    Product Series

    BusWorks 900EN Series

    Configuration

    Built-in Web pages