Siemens S7-200 SMART Password Unlock: Guidelines and Best Practices
: The PLC will be unlocked and returned to "Level 1" access. Note: All existing logic and data on the CPU will be permanently deleted. siemens s7 200 smart password unlock link
If you have forgotten the PLC hardware password and need to gain access to the CPU for a new program, the standard procedure is to clear the memory. Note that this . Siemens S7-200 SMART Password Unlock: Guidelines and Best
: If you can prove ownership of the equipment, Siemens Support may provide assistance in specific industrial recovery scenarios. siemens s7 200 smart password unlock link