The FEN20-4IOL industrial Ethernet I/O module uses IO-Link to improve device configuration, monitoring and replacement in industrial applications. The compact block offers four IO-Link channels. It is suitable for limited-space and small I/O applications. In addition to the device functioning as an IO-Link master, each of the IO-Link (C/Q) pins can be configured as digital input or output. The I/O also is a field logic controller (FLC). As an FLC, the module can carry out control tasks at the field level. This enables users to implement simpler applications without the need for an additional PLC.