Diagnostics
14 Function Manual, 09/2016, A5E03735838-AD
Overview of system diagnostics
Properties of system diagnostics
Introduction
In the SIMATIC environment, the term "system diagnostics" refers to diagnostics of devices
and modules.
All SIMATIC products have integrated diagnostic functions that you can use to detect and
remedy faults. The components automatically flag a potential fault in the operation and
provide detailed information. You can minimize unscheduled standstill times with plant-wide
diagnostics.
The SIMATIC automation system monitors the following states in the running plant:
● Device failure/recovery
● Insert/remove event
● Module fault
● I/O access error
● Channel fault
● Parameter assignment error
● Failure of the external auxiliary voltage
Properties ofSIMATIC system diagnostics
● Integrated as standard in the hardware
● System-wide across bus limits
● Automatic localization of the error source
● Automatic output of the cause of the error in plain text
● Plant-wide diagnostics of all components
● Archiving and logging of alarms
● Configurability of alarms
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