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Pleiger Control Loop
Manual version 2018-03
Example for a
data loop failure
(visible if selftest is finished):
NOTICE
Successful error correction
– final step
After you have fixed the problems you have to execute the selftest again. Only with a
successful selftest you can reset errors that were found during a selftest.
First offline
node from direction
of the tested
busmaster A
.
Master A polls the nodes begin-
ning with the lowest number in
the data loop (here no.1).
Failure detected
in data loop 1.
First offline
node from direction
of the tested
busmaster B
.
Master B polls the nodes begin-
ning with the highest number in
the data loop (here no.8).
Cause of the dis-
turbance: One of
these two marked
nodes or the con-
nection in be-
tween.
Selftest on busmaster A
Selftest on busmaster B
Figure 10-40: Selftest result: Example of data loop failure
