S7 200 Smart Plc Password Unlock Work !link!
If you have lost the password but still need to use the PLC (and do not need the old code), you can . This resets the CPU to factory default settings, effectively removing the password. Steps to Unlock by Clearing Memory:
Limits opening the project in STEP 7-Micro/WIN. This is a file-level restriction. s7 200 smart plc password unlock work