S71200 Password Unlock Work

If you own the machine and have proof of purchase, Siemens offers a formal "Password Unlock Work" process. This is the only method guaranteed not to void your warranty.

: Power on the PLC again. It is now in its factory default state and unlocked, allowing you to download a new program. Summary Table: Password Recovery Requirements SIMATIC Memory Card Complete Wipe / Factory Reset Official Siemens Memory Card TIA Portal Reset Reset Protection (if not yet loaded) Original TIA Portal project file "Clear PLC" (S7-200 only) Memory Clear Standard for S7-200 series only Reset to factory settings - remove password - SiePortal s71200 password unlock work

Power off the CPU, remove the card, and power it back on. The PLC is now at factory settings with no password. If you own the machine and have proof