Legacy Systems
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Filter in catalog →Frequently asked questions
Is the C200H-CPU21-E still in production?
No, this is a discontinued product from Omron's legacy C200H platform. It has been superseded by CP1L, CP1E, and NX-series controllers.
What does the C200H-CPU21 control?
It executes basic to intermediate industrial control logic programmed in ladder diagram language, interfacing with I/O modules for discrete and analog signals.
Can I replace this with a modern PLC?
Yes, Omron's CP1L, CP1E, and NX-series PLCs are direct successors, though programming and I/O modules will differ.
What is the power requirement?
The C200H-CPU21-E operates on 24VDC power supply, typical for compact PLCs of this era.
What communication options does it have?
RS-232 and RS-485 serial interfaces for programming and data communication.
Where can I find documentation?
Original manuals are available through Omron's legacy product archives or used industrial equipment suppliers. Consider migration guides to newer platforms.