The Omron CJ1W-MD261 PLC Digital I/O Unit combines 32 digital inputs and 32 NPN transistor outputs within a CJ I/O Bus Basic I/O module. The input section supports PNP/NPN signals at 20.4 to 26.4 V with an OFF/ON delay adjustable from 0 to 32 ms. Its output section operates from 10.2 to 26.4 V with a 0.3 A rating, enabling Programmable Logic Controller commands to switch compatible DC field devices. An FCN plug provides the field connection interface while the CJ I/O Bus integrates the unit with the controller architecture. The CJ1W-MD261 provides high-density mixed digital I/O and belongs to the PLC input and output range within Omron industrial automation.