Owner manual

59
DeviceNet - Design
State of bus status LED "Network"12.13.2.
LED Device state Explanation Troubleshooting
Off No voltage / not
online
Device is not supplied with voltage•
Device has still not ended Duplicate •
MAC ID Test (test lasts approx. 2 s)
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, connection
to master exists
Normal operating state with estab-•
lished connection to the master
Flashes
green
Online, without
connection to
master
Normal operating state without •
established connection to the
master
Flashes
red
Connection
time-out
One or more I/O connections are in •
Time-Out state
New connection establishment 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 communi-•
cation problems
Check baud rate•
As a possible remedy of error, •
please check address
If required, replace device•
english
Control Head Type 8681