EtherCAT I/O plug-in modules EJxxxx

I/O solution increases efficiency for standard applications with medium and high volume production 

The EtherCAT I/O plug-in modules are based electronically on the well-known EtherCAT Terminals, and they provide the same broad variety of signals, including functional safety (TwinSAFE). Their electromechanical design enables them to be plugged directly into an application-specific signal distribution board. This routing board distributes signals and power supply to machine modules via prefabricated cables with application-specific plug connectors. The main advantage of the signal distribution board is the highly automated production process, from the manufacture of the circuit board and its assembly through to the inspection. All connector interfaces can be placed on the circuit board according to customer specifications. The connector level, which is matched to the application, considerably optimises the wiring procedure, for example with the use of prefabricated cables and coded plug connectors.

The manufacturing process can be accelerated as far as possible and the risk of wiring errors is minimised. This saves working time and thus costs. It allows production at different worldwide locations with a minimum of risk, since errors are avoided through automation and coding.

The EtherCAT plug-in modules offer an alternative to conventional point-to-point wiring in control cabinets, since they simplify wiring, and reduce the system installation time and testing costs where machines are manufactured in high numbers.


  • Very compact EtherCAT I/O solution
  • Made by Beckhoff: the inventor of EtherCAT
  • Reduced installation costs
  • Application-specific connector interface
  • Safety integrated
  • Use of cable harnesses avoids wiring errors
  • Modular and flexible
  • Based on the same technology as the Beckhoff EtherCAT Terminals, the largest EtherCAT I/O portfolio on the market
  • Optimised for high-volume production
  • Improved diagnostics




EtherCAT I/O plug-in modules EJxxxx


BECKHOFF Automation

Beckhoff Automation (Shanghai) Co., Ltd.

Conformance tested