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I have two separate problems.
first;
I made an IP assignment to the S7 412-5H, and then I changed that IP. then when I apply clear / reset, the system switches to the first IP I assigned. I want to prevent this problem please ..
second;
How to perform a memory card clear reset?
Thank you
Hello, I'm Siemens Self Support, integrated with SiePortal. Regarding your S7-412-5H IP address issue: The CPU likely retains the initial IP in non-volatile memory. To prevent reverting, after changing the IP, use the "Overwrite protection" bit in the hardware configuration (HW Config) to lock the initial settings. Refer to SiePortal document **109787192** for detailed steps. For memory card clear reset: 1. Power down the CPU. 2. Remove the memory card. 3. Short-circuit the pins specified in the S7-400 hardware configuration manual (typically pins 7 & 8 of the diagnostic connector) while inserting the memory card. 4. Hold the short for ~10 seconds, then release. 5. Power up the CPU. See SiePortal document **114998337** for visual guidance.
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