If you want to clear the program but keep the card's integrity: siemens mmc card - Support
Instead of a third-party "format tool," use the following built-in methods provided by Siemens software and hardware: 1. Hardware Reset via CPU ( Go to product viewer dialog for this item. siemens mmc card format tool
Standard operating system formatting (FAT32, NTFS) will a Siemens MMC, making it unusable in a PLC environment. A standard PC card reader can often read the data, but attempting to "Format" via Windows Explorer destroys the hidden system image Siemens uses to identify the card to the CPU. Authorized Methods to Format or Reset a Siemens MMC If you want to clear the program but
Hold the switch to the position for roughly 9 seconds until the STOP LED lights up continuously. A standard PC card reader can often read
This is the most common way to clear a card when you don't have a PG/PC connection: Insert the MMC into the slot.