The Omron CPM2A is a brick‑style micro programmable controller offering 20, 30, 40 or 60 I/O point CPUs, expandable up to 120 I/O points with optional expansion modules. It includes built‑in peripheral and RS‑232C ports, optional RS‑422/RS‑485 adapters, and supports Host Link communication for programming and data exchange.
The manual covers ordering information, hardware specifications, I/O allocation, expansion module options, communication adapters, power supply requirements, and detailed programming instructions using CX‑Programmer software. It also provides wiring diagrams, connector pinouts, and safety guidelines for installation and maintenance.
| Supply voltage (AC) | 100‑240 VAC, 50/60 Hz |
|---|---|
| Supply voltage (DC) | 24 VDC |
| Power consumption (AC) | 60 VA max |
| Power consumption (DC) | 20 W max |
| Inrush current (AC) | 60 A max |
| Operating temperature | 0 °C to 55 °C |
| Storage temperature | -20 °C to 75 °C |
| Maximum I/O points | 120 points |
| Maximum expansion modules | 3 modules |
The CPM2A can be expanded up to 120 I/O points using optional expansion modules.
Up to three expansion I/O modules can be connected to a CPM2A CPU.
The controller includes a built‑in RS‑232C port, a peripheral port that can be adapted to RS‑232C or RS‑422/RS‑485, and supports Host Link communication.