I attempted to clear the memory in a CPU with the 'Clear' command for online operations, however, I got a message saying 'Clearing failed' and could not execute it. Why?

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  • GLOBAL > PLC > SPH > Support tool > I attempted to clear the memory in a CPU with the 'Clear' command for online operations, however, I got a message saying 'Clearing failed' and coul...
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  • Displayed Date : 2023/04/25 19:00
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I attempted to clear the memory in a CPU with the 'Clear' command for online operations, however, I got a message saying 'Clearing failed' and could not execute it. Why?

I attempted to clear the memory in a CPU with the 'Clear' command for online operations, however, I got a message saying 'Clearing failed' and could not execute it. Why?
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Answer

There is a possibility of mismatch between the project in the user ROM card and the CPU memory. On the 'Failure diagnosis' dialog, check the 'Resource information.' When 'Nonfatal failure Contents disagreement between User ROM and CPU memory' is displayed, the 'Clear' command cannot be executed for safety reasons.

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