Burkert Type 8693 - Manual (Page 207)

207
DeviceNet
45. Bus sTaTus display
The bus status is indicated on the display on the device.
Display Device.status Explanation/Troubleshooting
BUS offline
is displayed
approx. every
3 seconds
offline Device is not connected to the bus, the network access pro-
cedure (duplicate MAC-ID test, duration approx. 2 s) has still
not ended or device is only active network node
• Baudrate correctly set across network?
• Bus connection including plug assignment correct?
• Power supply and bus connection of the other nodes
correct?
BUS no
connection
is displayed
approx. every
3 seconds
online,
no connection to the master
Device is connected correctly to the bus, the network access
procedure has ended without errors, however there is no
established connection to the master.
BUS no
timeout
is displayed
approx. every
3 seconds
I/O connection timeout An I/O connection is in the TIME OUT state.
→
New connection establishment by master; ensure that I/O
data is transferred cyclically or, if
COS confirmed, that cor-
responding Acknowledge messages are sent by the master.
BUS critical
err
is displayed
approx. every
3 seconds
Critical bus error Other device with the same address in the network or BUS
OFF due to communication problems.
→
Change address of the device and restart device
→
Error analysis in the network with a bus monitor.
Table 57: Bus status display
english
Type 8692, 8693