Overview
You support the work of service experts by providing them with information:
● Service experts need information about your plant and the faulty system in order to provide
quick support.
You can find information about this in the following section "Plant documentation
(Page 81)".
● Service experts need information from the diagnostic buffer of the CPU in order to analyze
the cause of a CPU fault.
You can find information about this in the following section "How to read the CPU diagnostic
buffer (Page 82)".
● A memory dump facilitates the analysis of the cause of the CPU fault.
You can find information about this in the following section "CPU fault - preparing
diagnostics (Page 83)".
● Backing up the diagnostics files facilitates the analysis of an OS fault.
You can find information about this in the following section "How to back up the diagnostic
data of the PCS 7 OS (Page 84)".
● You can take all measures necessary to enable remote diagnostics via "remote access".
You can find information about this in the following section "Remote diagnostics of a PCS
7 system (Page 85)".
7.2.2 Plant documentation
Maintaining system information
Information on the components of your system is among the most important information
needed for successful repair.
You need this information in the following situations:
● When you are planning maintenance
● When you contact the hotline for assistance
Continual maintenance of this information shortens downtimes in case of a fault. Therefore,
always keep up-to-date lists (in a database or in a table, for example) containing the following
data:
● Plant
● Unit
● Location in plant
Fault - What should I do?
7.2 Preparing for expert support
Service Support and Diagnostics (V8.2)
Service Manual, 03/2016, A5E36200111-AA 81
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