Method 3: Using the Siemens S7-200 Smart’s Built-in Reset Switch A Siemens S7-200 Smart PLC has a built-in reset button that can be used to reset the device to its factory defaults:
Important Considerations
Locate this reset button: Find a reset button on the PLC device (usually located on this front or side panel). Press and hold the reset button: Press and hold this reset button for at least 10 seconds. Release the reset button: Release the reset button and wait for a PLC to restart. Default password: This PLC will be reset to their factory settings, and the default password will be restored. siemens s7 200 smart password unlock
If you have the STEP 7 Micro/ Win or STEP 7 Micro/ Win Plus application, you can use it to unlock our S7-200 Smart system: Method 3: Using the Siemens S7-200 Smart’s Built-in
