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9.8.4 Diagnostic and status messages
LED status displays
LED Display Meaning Remedy
DIA Red Module bus communi-
cation failure
Check if more than two ad-joining electronics mod-
ules have been pulled.
Check the supply of the module bus.
Off No error messages or
diagnostics
–
1 Green Status channel 1 = 1
Off Status channel 1 = 0
… … …
8 Green Status channel 8 = 1
Off channel 8 = 0
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