7. Maintenance
332
Figure 7-10. Visualization of the CPU diagnostics
As illustrated in Figure 7-10, both the tag and the list of all active diagnostic related to the module
will be shown twice on the CPU display. After that the respective module will exit the diagnostic
mode and the CPU display will indicate information regarding the CPU.
It is possible to identify that a particular module is in diagnostic mode when the segments shown in
Figure 7-11 (module display) blink. The number of segments depends on the number of I/O points of
the module.
Figure 7-11. Module Display