Digital Output Modules
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9.4.5 Diagnostic and status messages
LED status displays
Diagnostics
This module has the following diagnostic data per channel:
”Overcurrent”
(at least 1 channel sends diagnostics)
LED Display Meaning Remedy
DIA Red,
flashing
0.5 Hz
Diagnostics pending -
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
–
11 Green Status channel 1 = 1
Off Status channel 1 = 0
21 Green Status channel 2 = 1
Off Status channel 2 = 0
14 Green Status channel 3 = 1
Off Status channel 3 = 0
24 Green Status channel 4 = 1
Off Status channel 4 = 0
NOTE
The numbering of the channel LEDs corresponds to the numbering of the connectors at
the base module.
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
- - - - - - - overcurrent
(short circuit)
NOTE
If overcurrent is diagnosed the overloaded channel has to be switched off.
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