Omron CQM1H-CPU51 Programmable Controller CPU Unit

The Omron CQM1H-CPU51 Programmable Controller CPU Unit is a rack-mounted CPU for the CQM1H PLC family, designed to control packaging machines, conveyors, assembly lines, and other process equipment requiring reliable PLC logic. It provides about 15K program steps of capacity and roughly 6K words of data memory, operates in a cyclic scan, and offers a peripheral port with optional communication modules to connect expansion I/O and field devices. I/O is expandable via CQM1H I/O modules; it supports high-speed counters, power is supplied via the base unit, and the operating temperature range is 0°C to 55°C. This unit is commonly used by maintenance teams, OEMs, and system integrators for control, replacement, retrofit, and ongoing automation performance, with common replacements including Omron CQM1H-CPU61 and CJ1M-CPU11/CJ1M-CPU13.