Siemens Mmc Card Format Tool

: Formatting a SIMATIC MMC with standard Windows Explorer or third-party SD card formatters overwrites the internal hidden system files required by the PLC. Recovery for "Corrupted" Cards

Before diving into the specific tool, it is crucial to understand why you cannot use Windows Explorer or SD Formatter on a Siemens MMC. siemens mmc card format tool

Pros

For newer controllers, the TIA Portal Engineering Software provides a dedicated tool: Go to for the connected CPU. Expand the Functions folder in the project tree. Select Format memory card and click the Format button. : Formatting a SIMATIC MMC with standard Windows