6/16/2020 11:16 PM | |
Joined: 9/27/2006 Last visit: 4/18/2024 Posts: 12256 Rating: (2664) |
Hello OPU_Rahman_BD; Have you followed the suggested procedure to replace a faulty CPU? Does the replacement CPU have the same firmware are the old one, and the same memory card? See Chapter 16 of the following document: S7-400H Fault-Tolerant Systems v6.0 https://support.industry.siemens.com/cs/ww/en/view/82478488 If you have further information to provide us, such as screenshots of the error messages and the hardware configuration of your system, it would probably be helpful. Hope this helps, |
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