Burkert 8693 - Error Messages on Field Bus Devices; Other Malfunctions

164
Type 8692, 8693
english
Servicing and Troubleshoot-
ing the Process Controller
2.1.4 Error Messages on Field Bus Devices
Display Device status Explanation/Troubleshooting
BUS offline
is displayed
approx. every
3 seconds
offline Device is not connected to the bus, the network access procedure
(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 pro-
cedure 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 corresponding
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. →
2.2 Other Malfunctions
Problem Possible causes Remedial action
POS = 0 (when CMD > 0 %) or
POS = 100 %, (when CMD < 100 %)
PV = 0 (when SP > 0) or
PV = PV (when SP > SP )
Sealing function (CUTOFF) has been
unintentionally activated
Deactivate sealing function
Applies only to devices with binary
output:
Binary output does not switch
Binary output:
Current > 100 mA
Short-circuit
Check binary output
connection
Applies only to devices with process
controller:
Device is not operating as a controller,
despite correctly implemented set-
tings.
P.CONTROL menu option is in the
main menu. The device is therefore
operating as a process controller and
expects a process actual value at the
corresponding input.
Remove P.CONTROL menu option from
the main menu.