The Omron CPM1A-40CDT-A-V1 is a compact PLC CPU module from the Omron CPM1A series that provides reliable machine control with 40 I/O points (24 inputs and 16 transistor outputs). It operates from 100 to 240 VAC, supports about 2K program steps with built-in data memory, and offers an RS-232C peripheral port via an adapter along with expansion unit capability for scalable automation. The unit mounts on a DIN rail, tolerates 0°C to +55°C, includes LED indicators for status, and uses transistor (NPN) outputs for actuation. Common replacements include Omron CP1E-N40DT-A, Omron CPM2A-40CDT-A, and Omron CP1L-M40CDT-D.
