Omron CQM1H-CPU21 PLC Programmable Controller CPU Unit

The CQM1H’s rack-less modular design lets you customize your control system by adding “inner boards” for advanced functions, as well as specialized I/O and communications modules. CQM1H offers the most flexibility of all PLC systems in its class.

• Expands up to 256 I/O
• No separate backplane required
• Built in RS-232C port
• Supports all existing and new CQM1 I/O and specialized I/O modules
• Optional memory cassettes allow backup of sensitive data, provides a real-time clock
• 16 DC Built-in inputs
• 3.2K words of program memory