Mmc Card Format Tool ((install)) — Siemens

The best is always the one built into Simatic Manager or TIA Portal . However, if the card's file system is destroyed, third-party imaging tools are your only hope for recovery. To avoid headaches, never format a Siemens MMC through Windows Explorer—treat it as a specialized piece of industrial hardware, not a standard flash drive.

If a card has been accidentally formatted by Windows, it is no longer "visible" to Siemens software. In this case, you need a tool that can write a raw image file back to the card. siemens mmc card format tool