26
Electrical installation
status of the bus status led
led
device status explanation
troubleshooting
Off
No power
supply /
not online
Device is not supplied
with voltage
Device has still not
ended Duplicate MAC
ID Test (test lasts
approx. 2 sec)
Device cannot end
Duplicate MAC ID Test.
Connect other devices,
if the device is the only
network subscriber,
Replace device
Check baud rate
Check bus connection
Green
Online, con-
nection to
master exists
Normal operating status
with established con-
nection to the master
Flashes
green
Online, without
connection to
master
Normal operating status
without established
connection to the
master
Flashes
red
Connection
time-Out
One or more I/O con-
nections are in Time-
Out state
New connection estab-
lishment by master to
ensure that the I/O
data is transmitted
cyclically.
Red
Critical fault
Another device with the
same MAC ID address
is in the circuit
No bus connection
due to communication
problems
Check baud rate
If required, replace
device
Tab. 12: Status of the bus status LED
status of the device status led
led
device status
explanation
Off
No supply
Device is not supplied with voltage
Green
Device is working
Normal operating status
Tab. 13: Status of the device status LED
english
Type 8691
