Displays and connectors
2.2 LEDs
CM 1243-5
12 Operating Instructions, 04/2011, C79000-G8976-C246-01
2.2 LEDs
LEDs of the module
The module has various LEDs for displaying the status:
● LED on the front panel
The "DIAG" LED that is always visible shows the basic statuses of the module.
Table 2- 1 LED on the front panel
LED / colors Name Meaning
red / green
DIAG Display of the basic status of the module
● LEDs below the upper cover of the housing
Open the upper housing cover. The LEDs here provide more detailed information on the
module status.
Table 2- 2 LEDs below the upper cover of the housing
LED / colors Name Meaning
yellow / green
RUN/STOP Details on the operational and communications status of the
module
red
ERROR Group error
- not used - -
- not used - -
NOTICE
LED colors when the module starts up
When the module starts up, all its LEDs are lit for a short time. Multicolored LEDs display a
color mixture. At this point in time, the color of the LEDs is not clear.
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