Attached is the startup property you might want to consider adjusting for the auto power up issue.

For the diagnostics buffer, it looks like someone powered it off and on so many times, the original problem was lost.

Ziemens

We have an s71214 plc which goes to stop mode once every year, for no apparent reason, and it does not go to run automatically. So, we have to run it manually from the Tia Portal. See attached Diagnostics files. What could be the problem? Thank you

No.

You need the original V11 (SP2?) project.

Your V13 license will work for V11.  You can have both V11 & V13 installed at the same time. 

Ziemens

Can i use the Plc web page to change the Startup_Property_Warm_Restart_Run ? because the plc was originally programmed in Tia v11, and i have Tia v13.  Thanks