PLC | CPU

If you click on CPU, the current PLC-cycle (OB2, OB1, OB3) is still stopped, after that the accus and the RLO as well as other informations are read out of the CPU and displayed in a little window. The machine and the PLC-program keep running, the data in the window are only a snapshot.

If you want to know the CPU-data on a special point in the PLC-program you have to use breakpoints. Then the PLC and the machine stop at this position and the CPU-window appears with the current values. Every time you click on “forward”, a cycle of the PLC and a machine simulation is executed. If you want to continue the simulation normally you have to delete the breakpoint and download the block again (or click on the eye, so it is downloaded automatically before activating the monitor-mode).