Product Description:

The EP2338-0001 is a compact digital I/O block manufactured by Beckhoff and assigned to the EP Digital Input Modules series. Intended for machine-side mounting, the unit provides both input acquisition and low-power output switching over a single EtherCAT connection. By placing sealed connectors directly on the housing, the block eliminates terminal strips and enables decentralized architectures where sensors, valves, and indicators are cabled locally instead of to a central panel. In a production line, it forwards discrete status bits to the controller and switches solenoids or beacons with minimal latency.

The module communicates through two shielded M8 bus sockets and uses the EtherCAT protocol, allowing deterministic daisy-chain operation. Each of the 8 channels may act as a Type 1 or Type 3 input or as a low-side output that switches up to 0.5 A per channel. Power is distributed from the UP line at 24 VDC, and the die-cast housing meets IP65/IP66/IP67 for washdown installation. Sensor and actuator leads connect through M8 × 1, 3-pin, A-coded sockets. Logic draws 120 mA, while every input sinks 6 mA. Compliance with EN 61131-2 keeps the module compatible with standard PLC input conventions.

For time-critical sequences, the hardware filter suppresses contact bounce within 10 µs, allowing clean edge detection before the controller cycle expires. The power transistor achieves full conduction in 50 µs on / 100 µs off, so pneumatic valves respond consistently even at high toggle rates. Channel protection activates at 1.5 A, and if the fault persists, diagnostics are forwarded across EtherCAT. The sum of the eight outputs is limited to 4 A, which helps keep connector temperature within safe limits. A dedicated sensor supply rail delivers auxiliary power to proximity switches and separates that load from the switched output channels.