Preparing For Expert Support; Information On Cause Of Fault - Siemens PCS 7 Service Manual

Failure - What next?

6.2 Preparing for expert support

Examples of causes
Fault
CPU fault
CP fault
I/O module
fault
PC
component
fault
6.2 Preparing for expert support
6.2.1

Information on cause of fault

Introduction
Topic area
Supporting
service experts
64
Possible causes
● Fault due to internal error
● Fault due to external error
● Fault due to internal error
● Fault due to external error
● Fault due to SIMATIC station component
● Fault due to external influences (such as
a short circuit on the module terminals)
If the PC is running:
● Fault due to events
● Faulty connections
Information
● WHAT?:Actions for making essential information available to experts for fault
analysis.
● WHEN?:If expert support is needed in the event of a fault, you facilitate the work
of the experts by providing them essential information on the plant or the faulty
components.
● HOW?: You can find information on this in this section.
Initial diagnostics
CPU diagnostics
Module Diagnostics > Special
Diagnostics > NCM S7 Diagnostics
CP... >
Information from:
● Module" folder
● Operating mode" folder
● Diagnostic buffer" folder
Module diagnostics > Status
information and, if available,
diagnostic information
If the PC is defective:
● Repair/replace
● Restore data
Service support and diagnostics (V8.0)
Service Manual, 03/2012, A5E02779775-02