We frequently have to examine the state of certain PLC tags during commissioning activities or to detect a problem. If this variable is utilized multiple times and the sequence of block calls is not clear to us, it may be difficult to follow the program.
This is a companion discussion topic for the original entry at https://www.solisplc.com/tutorials/siemens-plc-troubleshooting-using-watch-tables-in-tia-portal-v17