This manual describes the safety guidelines, target audience, and overall purpose of the S7-400H fault‑tolerant system. It is intended for qualified personnel who configure, debug, and maintain the programmable controller.
The document covers installation options, CPU 41x‑H installation, system modes, linking and synchronization, communication functions, STEP 7 configuration, fault handling, system modification during operation, and includes appendices with terminology and an index. This manual is written in Chinese.
| Supported CPUs | CPU 414-4H, CPU 417-4H |
|---|---|
| Firmware version | V3.1 |
| Options package version | V5.2 or later |
| UL certification | UL 508 |
| Order number | 6ES7988-8HA10-8BA0 |
The system supports CPU 414-4H and CPU 417-4H, both requiring firmware version V3.1.