System overview
4.4 CPUs
Automation system
System Manual, 01/2023, A5E03461182-AK
65
Advantages and customer benefits
Integrated system diagnostics offers the following advantages:
• Diagnostics is always consistent with the actual state of the plant. The system diagnostics
also works in the STOP mode of the CPU.
• The uniform display concept enables efficient error analysis.
• The immediate identification of the error source in the event of an error speeds up
commissioning and minimizes production downtimes.
• By configuring diagnostics events, you tailor the diagnostics to the requirements of your
automation task.
4.4.7 Trace
for effective commissioning and optimization of drives and closed-loop controls, the SIMATIC
S7-1500 CPUs feature integrated trace functionality. The trace function records the CPU tags,
depending on the settable trigger conditions. Tags are, for example, drive parameters or
system and user tags of a CPU. You can display and evaluate the saved recordings with
STEP 7.
By visualizing the entire process with real-time trace, you identify, for example, sporadic
events in the system during commissioning and service.
Figure 4-19 Schematic overview
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