This document is a user manual for the SIMATIC automation system S7-400H redundant system by Siemens. The manual includes an introduction to the redundant programmable controller, installation options, quick start guide, CPU 41x-H installation, system and operating modes, linking and synchronization, using I/O, communication functions, configuration using STEP 7, troubleshooting and replacement during operation, modifying the system, synchronization templates, technical specifications, and appendices.
This manual is intended for engineers who configure, debug, and maintain the SIMATIC S7‑400H fault‑tolerant controller. It covers system installation options, CPU installation, operating modes, linking and synchronization, I/O connections, communication functions, and STEP 7 configuration.
The document also includes detailed procedures for fault diagnosis, component replacement, hardware modifications, and technical specifications such as power consumption, memory sizes, and fiber‑optic cable limits. This manual is written in Chinese.
| CPU 414‑4H power consumption | 35 mA typical, 80 mA max |
|---|---|
| CPU 414‑4H memory | 256 Kbyte RAM |
| Maximum fiber‑optic cable length for sync template | 500 m |
The manual uses the symbols 危险 (Danger), 警告 (Warning), 小心 (Caution), and 注意 (Note) to indicate different hazard levels.
The storage card must be removed only while the CPU is in STOP mode; otherwise the CPU will enter STOP state.
The maximum cable length is 500 meters.