Never format a Siemens MMC using Windows. Doing so destroys the special Siemens internal file system (internal CID/CSD registers), making the card unusable in a PLC.
If you proceed, always:
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"The logic is hung," Elias muttered. He tried to upload the blocks to his laptop to see where the sequence had jammed, but a prompt blocked his path: Enter Password. Never format a Siemens MMC using Windows
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