Online Diagnosis With Step 7; Read Out Diagnostic Buffer With Step 7 (Up To V 5.2) - Festo CPV-D102 Elektronics Manual

3. Diagnosis CPV−DI02 (PROFIBUS−DP)
3.4

Online diagnosis with STEP 7

3.4.1 Read out diagnostic buffer with STEP 7 (up to V 5.2)

Festo P.BE−CPV−DI02−E N en 0704NH
Direct diagnostic events in conjunction with the CP valve
terminal can be:
decentral periphery station failure
communication between slave and master interrupted
module faulty
(see device−related diagnosis Tab. 3/12 and Tab. 3/13)
change of operating status from START to RUN
(nominal/actual difference exists)
configuration data of the valve terminal do not match
the periphery
valve terminal has incorrect DIL setting.
The diagnostic buffer of STEP 7 offers the possibility of dis
playing diagnostic events of the S7 system in the sequence in
which they occur.
Requirement:
HW Config has been accessed.
Proceed as follows (see Fig. 3/5):
1. Switch from offline to online 1.
2. Click with the right−hand mouse button on the CPU in
rack 2.
3. Click on [Module information...] in the context menu
shown. The window Module information" will then
appeart 3.
4. Click on the register Diagnostic buffer" 4.
5. Click on the event and read the details 5. Here you will
find more detailed information on proceding further,
depending on the S7 controller used.
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