Reading Service Data - Siemens SIMATIC S7-400H System Manual

Special functions of a CPU 41x-H

6.6 Reading service data

6.6 Reading service data
Application case
If you need to contact Customer Support due to a service event, the department may require
specific diagnostic information on the CPU status of your system. This information is stored
in the diagnostic buffer and in the service data.
Select the "PLC -> Save service data" command to read this information and save the data
to two files. You can then send these to Customer Support.
Note the following:
● If possible, save the service data immediately after the CPU goes into STOP or the
● Always save the service data of both CPUs in an H system.
Procedure
1. Select the "PLC > Save service data" command.
2. Save the files.
3. Forward these files to Customer Support on request.
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synchronization of a fault-tolerant system has been lost.
In the dialog box that opens up, select the file path and the file names.
System Manual, 03/2012, A5E00267695-11
S7-400H