This manual provides detailed information on the operation and features of the OMRON C200H series programmable controllers (CPU21-E/23-E/31-E)
This manual describes the operation of OMRON C200H series programmable controllers, covering the CPU21‑E, CPU23‑E, and CPU31‑E models. It is intended for qualified personnel who need to install, program, and maintain these controllers.
The document is organized into sections on hardware considerations, memory areas, ladder‑diagram programming, instruction set, execution timing, debugging, and troubleshooting, with appendices that list standard models and reference tables.
| Supported CPUs | CPU21‑E, CPU23‑E, CPU31‑E |
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The manual uses symbols such as DANGER, WARNING, and CAUTION to indicate different levels of hazard.
Troubleshooting information, including alarm indicators and error messages, is provided in Section 8 of the manual.