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2020/09
7.4.5 Diagnostic and status messages
LED status displays
LED Display Meaning Remedy
DIA Red
Module bus commu-
nication failure
Check if more than two ad-joining electronics
modules have been pulled.
Check the supply of the module bus.
Off No error messages or
diagnostics
–
11 Green Status
channel 1 = 1
-
Off Status
channel 1 = 0
-
21 Green Status
channel 2 = 1
-
Off Status
channel 2 = 0
-
NOTE
The numbering of the channel LEDs corresponds to the numbering of the connectors at
the base module.
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