S7-1200 Password Unlock Jun 2026

: Insert a standard Siemens Memory Card into your PC.

: In TIA Portal, configure the card as a "Transfer" card. Do not load any project onto it. S7-1200 Password Unlock

format the card using Windows tools, as this can corrupt the card's special formatting. Configure as a Transfer Card TIA Portal , navigate to the Card Reader/USB memory folder in the project tree. Right-click the memory card and select Properties Change the "Card type" to Perform the Reset the S7-1200 CPU. : Insert a standard Siemens Memory Card into your PC

: Default setting; anyone can read/write. format the card using Windows tools, as this

If the PLC was configured with "no protection" or you still have limited online access (e.g., Read access), you may be able to reset it via software: In TIA Portal, go to Online & Diagnostics Navigate to Reset to factory settings Delete password for protection of PLC configuration data "https://docs.tia.siemens.cloud".