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Meaning of the LED displays
The following tables contain the meanings of the status and error displays.
RN/NS, ER/MS, MT/IO LEDs on the PN/MF Coupler
Table 5- 9
Status and error displays of the RN/NS, ER/MS, MT/IO LEDs
LEDs
RN/NS
ER/MS 1/2
1/2
(ERROR)
(RUN)
Off
Off
On
On
Not rele-
vant
Flashes
Not rele-
vant
On
Not rele-
vant
Flashes
Not rele-
Not rele-
vant
vant
PN/MF Coupler
Hardware Installation and Operating Manual, 07/2020, A5E50018670-AA
5.3 PROFINET IO interrupts, diagnostics, error messages and system events
MT/IO 1/
2(MAINT
)
Missing or insufficient supply voltage on
the PN/MF Coupler.
Off
RN/ER/MT LEDs are continuously On and
RN/ER/MT LEDs of the other interface
On
are Off or flashing: Hardware or firm-
ware defective. Error information will be
determined and stored retentively on
the Flash memory.
RN/ER/MT LEDs are continuously On and
RN/ER LEDs of the other interface are
flashing: Startup was stopped because a
BusAdapter that is defective or not sup-
ported was detected on the other inter-
face.
Not rele-
PN/MF Coupler is deactivated.
vant
PN/MF Coupler is not configured.
PN/MF Coupler is starting up.
PN/MF Coupler is being assigned pa-
rameters.
PN/MF Coupler is being reset to factory
settings.
Not rele-
PN/MF Coupler is currently exchanging
vant
data with the IO controller.
Not rele-
Group error
vant
The preset configuration does not
match the actual configuration of the
PN/MF Coupler .
Parameter assignment error
Maintenance demanded
On
Meaning
Remedy
Check the supply voltage.
Do not disconnect the PN/MF Coupler from
the supply voltage as long as X1 LEDs are
continuously lit (this process may take a
few minutes).
Replace the BusAdapter of the other inter-
face.
Activate the PN/MF Coupler with the con-
figuration software or the user program.
Configure the PN/MF Coupler with the con-
figuration software.
---
---
Evaluate the diagnostics and eliminate the
error.
Check the configuration of the
PN/MF Coupler, to determine whether it is
correct.
Evaluate the display of the module status in
STEP 7. Eliminate the error in the corre-
sponding I/O module.
See section Interrupts (Page 55)
PROFINET IO
51
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