Indicators
7
29 | 34
Building Technologies
A6V10407862_d_en_--
Siemens Industry, Inc.
2018-09-07
Function indicator
Meaning
RM LED flashing pattern (every 2 s)
Manager Ring open
There is a break in the
Ethernet ring at one or
more locations
Claim Manager Ring open
Double manager
Two Ethernet
switches have been
configured as the
manager
Client
Ethernet switch has
been configured as a
client
Unidirectional Data Link
Fault
In one section of the
MRP ring, the
connection is only
running in one
direction due to
incorrect cabling or a
hardware fault
Table 4: RM LED flashing pattern
1
MRP: Media redundancy protocol
Function indicator
Possible troubleshooting steps
Claim Manager
● Adapt configuration. A ring manager has to be configured within each MRP ring.
Ring open
● Check the MRP ring. There is a break in the ring at one or more of the panels.
● Check whether cable is defective.
● Ring port LEDs which are switched off show open ports
– Defective/unplugged cable.
Double manager
● Adapt configuration. Only one Ethernet switch is allowed to be configured as the
ring manager.
Unidirectional Data Link
Fault
● Check the cabling of all optical fiber sections
● Replace each Ethernet switch in turn until you identify the defective device.
Table 5: Troubleshooting
t
0
125 250 375 500 625 750 875 1000 1125 1250
1500
1375
[ms]
1625 1750 1875
t
0
125 250 375 500 625 750 875 1000 1125 1250
1500
1375
[ms]
1625 1750 1875
t
0
125 250 375 500 625 750 875 1000 1125 1250
1500
1375
[ms]
1625 1750 1875
t
0
125 250 375 500 625 750 875 1000 1125 1250
1500
1375
[ms]
1625 1750 1875
t
0
125 250 375 500 625 750 875 1000 1125 1250
1500
1375
[ms]
1625 1750 1875
