Watch Window
The Watch window allows you to monitor the current values of a set of variables. Being an asynchronous tool, the Watch window does not guarantee synchronization of values. Therefore, when reading the values of the variables in the Watch window, be aware of the possibility that they may refer to different execution cycles of the corresponding task.The Watch window contains an item for each variable that you added to it. The information shown in the Watch window includes the name of the variable, its value, its type, and its location in the PLC application.