The Omron CP1W-8ED PLC Digital Input Expansion Unit provides 8 input channels for adding 24 VDC field signals to a compatible Programmable Logic Controller system. The module receives digital ON/OFF conditions from connected devices and makes those input states available to the controller for machine sequencing and control-logic processing. It consumes 18 mA at 24 V, making it a compact option when only a limited number of additional digital inputs are required. Its eight-point configuration can extend an existing PLC without requiring a change to the main controller platform. The CP1W-8ED adds digital input capacity within the CP1W architecture and forms part of the 24V PLC input expansion range developed for Omron machine control systems.