10
Function
Meaning of the LED display
Manual – PROFINET IO Interfaces, Field Distributors
131
10.1.2
"RUN" LED
The following table shows the statuses of the "RUN" LED:
LED
RUN
LED
BUS-F
Meaning
Measure
Green
Lights up
X
MFE component hardware
is OK.
-
Green
Lights up
Off
Proper operation.
MFE is currently exchan-
ging data with the
PROFINET master (data
exchange).
-
Off
Lights up
X
MFE is not ready for opera-
tion.
No 24 V voltage supply.
Check the 24 V DC voltage
supply.
Switch on the MFE again. Re-
place MFE if problem occurs
several times.
Red
Lights up
X
Error in the MFE compon-
ent hardware.
Switch on the MFE again. Re-
place MFE if problem occurs
several times.
Green
Flashing
X
MFE component hardware
does not start.
Switch on the MFE again. Re-
place MFE if problem occurs
several times.
Yellow
Flashing
X
Yellow
Lights up
X
X
Any state
22870857/EN – 12/2016