Product Description:

Beckhoff manufactures the EPI1008-0002 as part of its EP Digital Input Modules series. The product is an eight-channel digital input block that connects field sensors to a controller through IO-Link. It serves to capture simple on/off states such as limit switches, light curtains, or proximity sensors in conveyor lines and assembly cells. These signals are passed to the control system as standard digital status points. Designed as a sealed I/O block, the module decentralizes signal handling directly on the machine, reducing panel space and wiring complexity in industrial automation.

The module exchanges data through an IO-Link port that follows the IO-Link V1.1 Class A standard at a maximum rate of 230.4 kbaud (COM 3). Each input follows the EN 61131-2 Type 3 characteristic, allowing direct connection of PNP sensors while limiting current to protect the electronics. A built-in filter of 3.0 ms suppresses contact bounce, and the pulse extension is preset to 0 ms so short events are forwarded without stretching. Eight channels are wired over 4 x M12 screw-type sockets that carry 5-pin contacts for signal, supply, and reference lines. The internal circuitry is energized from a nominal bus voltage of 24 V DC, which matches the common control-voltage domain used for sensors and actuators.

The compact outline of 30 mm × 126 mm × 26.5 mm fits neatly on machine frames, and the molded housing is made from PA6 to provide mechanical strength and electrical insulation. Sensor power is distributed from the L+ pin and can deliver up to 0.5 A across the four input sockets, removing the need for separate supply splitters. A single A-coded M12 plug handles the IO-Link uplink and keeps the network connection separate from the sensor interfaces. Screw terminals inside each field connector secure conductors against vibration.