IO Devices

Relay Panel

The EtherCAT® relay panel combines 56 digital inputs (24 VDC) and 32 digital outputs (24 VDC) all within a small robust package. Using the latest EtherCAT® communications technologies to interface the digital I/O to Control System Software.

The relay panel has 32 digital outputs that are controlled using mechanical relays, each capable of outputting 24 VDC. The outputs are spread amongst two connectors with each connector being divided into two banks, left and right. Amongst the two banks, the outputs are split into two groups, one having individual voltage free outputs and the other sharing a common control voltage.

There are 20 common control/switched voltage outputs, 10 of which lie on the left bank and 10 that lie on the right bank. The individual left and right banks have their relays powered by BANKL and BANKR respectively.

The remaining 12 outputs are all voltage free outputs, and have been divided up into a group of 8 and a group of 4 outputs, where each group has High Voltage (HV) and Protective Earth Low Voltage (PEVL) isolation.

At A Glance

  • 56 digital inputs and 32 digital outputs
  • 24VDC
  • Industry leading EtherCAT® fieldbus
  • Individual voltage free outputs or common control voltage outputs
  • 20 common control/switched voltage outputs



  • 100Mbps
  • EtherCAT® fieldbus
  • 1x input
  • 1x output


  • Compact profile
  • IP20


  • 20 x common voltage digital outputs
  • 12 x voltage free digital outputs
  • 24VDC output
  • 2A max per output


  • 56 x 24VDC digital inputs
  • 10mA (nominal)
  • 32mA max


  • Field upgradeable firmware
  • Watchdog output
  • High density I/O ports

Digital Inputs

  • Number of Inputs 56
  • Nominal Voltage 24VDC (+/-10%)
  • "Off" Signal Voltage 0 to 3VDC
  • "On" Signal Voltage 18 to 36VDC
  • Input Hold Time (min) 1ms
  • Input Current (typical) 10mA
  • Max current (@36VDC) 32mA

Digital Outputs

  • Number of Outputs: 32
  • Rated Load Voltage : 24VDC  (+/-10%)
  • Load Type: Resistive and Inductive
  • Output Current (max): 2A
  • Connect Consumption (per output): 8.3mA

General Specifications

  • Power: 24VDC
  • Operating Temperature: 0 to 60 deg C
  • Storage Temperature: -25 to 85 deg C
  • Relative Humidity: 85% non condensing
  • Weight: 1.8kg
  • Dimensions (W x H x D): 60mm x 484mm x 115mm

subject to change without notice

Contact us for more information.

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