The most "official" way to format a card is through the Siemens programming software itself.

A: Check the physical write-protect switch on the side of the card adapter (if using a micro MMC with an adapter). If the switch is off and it is still protected, the card may have been locked via the Siemens proprietary "Write Protection" feature in Simatic Manager. You may need to use the specific "Clear Protection" function in the memory card menu.

The isn't a single standalone executable; it is a function embedded within the Simatic Manager (Step 7) and the SIMATIC Automation Tool.

: Open "Online & Diagnostics" for the connected CPU, select "Functions," then "Format memory card". Requirement : The CPU must be in STOP mode . SIMATIC Manager (Step 7 V5.x) :

Some specialized utilities exist to perform a "low-level" format to reconstruct Siemens-specific headers if a card was accidentally formatted in Windows. Critical Precautions Micro SD Card in LOGO! 8 - SiePortal - Siemens All cards are FAT32 formatted. Siemens SiePortal Simatic Memory card SMC for Simatic S7-1200/S7-1500