Siemens SIMATIC PN/BACnet LINK Operating Instructions Manual page 78

Diagnostics
10.1 Status LEDs
RUN LED
Flashes
Flashes
Flashes
1) The MAINT LED currently has no meaning.
x: LED state is irrelevant
During boot-up of the PN/BACnet LINK and after connecting the power supply, the sequence
is as follows:
1. The three LEDs light up briefly for about 1 second and then go dark again.
2. None of the LEDs light up for about 4 seconds.
3. The RUN LED starts flashing.
4. When the run-up of the PN/BACnet LINK is successfully complete and the connection to
the S7 controller is established, the RUN LED lights up.
78
ERROR MAINT
LED LED
On On On
Off Off Off
Off Off
x
On Off
x
Off
Flashes
Off Off
Off
Flashes
Operating
state
1)
Power-up test / Seri-
ous error
System run-up
Not connected to S7
controller
Connected to S7
controller
Error state
Firmware update
LEDs are flashing
(triggered by
TIA Portal)
Operating Instructions, 10/2017, A5E39895543-AA
Description
For approximately 1 second: LED
•
test during startup
Longer than 1 second: HW error
•
detected during power-up test or
other serious error
System not completely booted yet
•
but power-up test is complete.
No "IO controller" connection estab-
•
lished or
configuration not yet completed.
•
"IO controller" connection estab-
•
lished and configuration completed.
"IO controller" connection estab-
•
lished and configuration completed,
but an error occurred:
– Diagnostic message to the S7
controller is pending or
– Incorrect configuration by the S7
controller
Flashes for at least 3 seconds.
While the firmware is written to the
•
flash memory.
3-second intervals
•
For identification of the device
•
PN/BACnet LINK