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Product short description:
  • 4 input channels
  • 0 to 20mA DC (0 to 20A AC with AC sensor) or ±10V DC input range
  • 4 alarm channels, open drain MOSFETS (1A DC loads, 0 to 35V DC)
  • 10 to 36V DC, 24V AC power
  • Modbus RTU high-speed RS-485
Kindly go to setting page and check the option "Place them manually"

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 non-polarized, 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 set-points 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 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 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).

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

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 precedence 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.

 

  • Standard Modbus RTU protocol with high-speed RS-485 communication (up to 115K bps)
  • 16-bit sigma-delta A/D yields 0.1% of range resolution and accuracy
  • Four inputs in a single inch-wide module reduces system costs and saves panel space
  • Four discrete outputs enable local limit alarms or host-controlled on/off switching
  • Heavy-duty 1A solid-state relays provide dependable on/off control of industrial devices
  • Self-calibration lowers maintenance costs by reducing periodic manual calibration checks
  • Watchdog timers provide a configurable fail-safe output state for use when host I/O communication is lost
  • Four-way isolation eliminates potential ground loops between power, input, output, and network circuitry
  • Self-diagnostics monitor micro-controller activity to detect operational failures (lock-up) and execute a reset to restore communication
  • Operating temperature: -25°C to 70°C (-13°F to 158°F).
Modbus/RS485 an Introduction White Paper (Log in to view the file)
Modbus/RS485 Network an Introduction White Paper This white paper describes the operation of Modbus as it relates to Acromag Series 900MB I/O modules.
How to Configure Kepware KEPServerEX 5.0 for Communications with Acromag BusWorks Modbus I/O Modules Application Note
Configuring Kepware KEPServerEX 5.0 for Communications with Acromag BusWorks Modbus I/O modules. Introduction This document provides example steps for configuring the Kepware KEPServerEX OPC Server for communications with Acromag Busworks Modbus RTU and Modbus TCP/IP Distributed I/O Modules. Once the server is configured, data may be read from or written to the I/O module using...
How to Configure LabVIEW 2009 to Communicate with Acromag BusWorks and EtherStax Modbus I/O Modules Via an OPC Server Application Note
Introduction National Instruments LabVIEW can be used to monitor and control Acromag Busworks and Etherstax Modbus I/O Modules via an OPC server. A separate application note, Configuring Kepware KEPServerEX 5.0 for Communications with Acromag Busworks and Etherstax Modbus I/O Modules, outlines configuration of a KEPServerEX OPC server. This document focuses on setting up controls and...

Manuals

913MB, 914MB User Manual (Log in to download the file)

BusWorks 900MB Modbus RTU Configuration Software (Log in to download the file)
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Additional information

Weight 16 oz
Dimensions 12 × 13 × 3 in
Part Number

4001-112: ,Type A to Type B, 4001-113: Type A to Mini-B, 5028-565: Micro USB to USB OTG, 4001-095: USB-to-DB9

  • Description

  • Features & Benefits

    • Standard Modbus RTU protocol with high-speed RS-485 communication (up to 115K bps)
    • 16-bit sigma-delta A/D yields 0.1% of range resolution and accuracy
    • Four inputs in a single inch-wide module reduces system costs and saves panel space
    • Four discrete outputs enable local limit alarms or host-controlled on/off switching
    • Heavy-duty 1A solid-state relays provide dependable on/off control of industrial devices
    • Self-calibration lowers maintenance costs by reducing periodic manual calibration checks
    • Watchdog timers provide a configurable fail-safe output state for use when host I/O communication is lost
    • Four-way isolation eliminates potential ground loops between power, input, output, and network circuitry
    • Self-diagnostics monitor micro-controller activity to detect operational failures (lock-up) and execute a reset to restore communication
    • Operating temperature: -25°C to 70°C (-13°F to 158°F).
  • Tech Papers

    Modbus/RS485 an Introduction White Paper (Log in to view the file)
    Modbus/RS485 Network an Introduction White Paper This white paper describes the operation of Modbus as it relates to Acromag Series 900MB I/O modules.
    How to Configure Kepware KEPServerEX 5.0 for Communications with Acromag BusWorks Modbus I/O Modules Application Note
    Configuring Kepware KEPServerEX 5.0 for Communications with Acromag BusWorks Modbus I/O modules. Introduction This document provides example steps for configuring the Kepware KEPServerEX OPC Server for communications with Acromag Busworks Modbus RTU and Modbus TCP/IP Distributed I/O Modules. Once the server is configured, data may be read from or written to the I/O module using...
    How to Configure LabVIEW 2009 to Communicate with Acromag BusWorks and EtherStax Modbus I/O Modules Via an OPC Server Application Note
    Introduction National Instruments LabVIEW can be used to monitor and control Acromag Busworks and Etherstax Modbus I/O Modules via an OPC server. A separate application note, Configuring Kepware KEPServerEX 5.0 for Communications with Acromag Busworks and Etherstax Modbus I/O Modules, outlines configuration of a KEPServerEX OPC server. This document focuses on setting up controls and...
  • Specs & Data Sheets

    Manuals

    913MB, 914MB User Manual (Log in to download the file)

  • Software

    BusWorks 900MB Modbus RTU Configuration Software (Log in to download the file)
  • Accessories

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      • 19" rack-mount kit with DIN rail
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      Select options
    • 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).
      $50
      Select options
    • Compare

      5035 Series: Ethernet Cables

      • Ethernet straight cable, CAT5
      • Ethernet crossover cable, CAT5E
      • Low EMI Double-Shielded Ethernet Patch Cable
      $40$115
      Select options
    • Compare

      900C-SIP: Configuration Software Interface Package

      • Configuration Software
      • USB-to-RS232 Adapter
      • RS232-to-RS485 Adapter
      • Interface Cable
      $340
      Select options
    • Compare

      AMTN, AMTX: ActiveX / .NET Controls for Modbus I/O

      $350
      Select options
    • Compare

      PS5R: Slim Line Power Supplies

      • 10W, 15W, 30W, 60W, 90W, 120W, and 240W models
      • Universal Input (85-264V AC / 100-370V DC)
      • Lightweight and compact size
      $95$245
      Select options
    • Compare

      Terminal Block Replacements

      • Simplifies wiring connections on Acromag I/O Modules
      • Barrier strip or spring clamp terminal block kits
      • Provide safe and secure wiring connections
      $30$40
      Select options
    • Compare

      USB Cables

      Various USB cables
      $20
      Select options
  • Additional information

    Additional information

    Weight 16 oz
    Dimensions 12 × 13 × 3 in
    Part Number

    4001-112: ,Type A to Type B, 4001-113: Type A to Mini-B, 5028-565: Micro USB to USB OTG, 4001-095: USB-to-DB9