forgot password

hi ,

i have locked my program backup with password with level 4 ,and i have given the option to start the plc i run mode, so its not possible to download the program without the password , i have the original back up of the program , is there any way to reset the password or atleast erase the program or factory reset the plc without the password

i tried CLEARPLC  master password but , i cant change the plc to stop mode so that i can download the program , it is asking password for the same .

so is there any way to switch the mode of the plc from run to stop mode??

Nz28

so is there any way to switch the mode of the plc from run to stop mode??

The S7-200 has a 3 position switch under the door on the front right side of the CPU. Switch the PLC to STOP mode by pushing the toggle switch to the appropriate position.

Also see this:
https://support.industry.siemens.com/tf/ww/en/posts/s7-200-remove-password-level-4/99663/?page=0&pageSize=10