System bus (CAN) with Servo PLC & Drive PLC
Configuration
3-7
l
PLC-Systembus EN 1.1
3.10
Monitoring
3.10.1
Time monitoring for CAN1_IN ... CAN3_IN
Via C0357 you can configure a time monitoring for the inputs of process data objects CAN1_IN ...
CAN3_IN:
Code
LCD
Possible settings
Info
Lenze Choice
C0357
1
2
3
CE1monit time
CE2monit time
CE3monit time
3000
3000
3000
0
{1 msec}
65000 Monitoring time for process data
input objects
If there was no telegram received in the defined monitoring time, you can configure the
corresponding reaction in codes C0591 ... C0593:
Code
LCD
Possible settings
Info
Lenze Choice
C0591 MONIT CE1
3
0
Trip
2
Warning
3
Off
Configuration monitoring: CAN1_IN
error “CommErrCANIN1” (CAN1
CE1)
C0592 MONIT CE2
3
0
Trip
2
Warning
3
Off
Configuration monitoring: CAN2_IN
error “CommErrCANIN2” (CAN2
CE2)
C0593 MONIT CE3
3
0
Trip
2
Warning
3
Off
Configuration monitoring CAN3_IN
error “CommErrCANIN3” (CAN3
CE3)
3.10.2
Bus off
If the PLC has decoupled itself from the system bus because too many of the received telegrams
were faulty, the signal “ BusOffState” (CE4) is set.
The reaction to this can be configured via code C0595:
Code
LCD
Possible settings
Info
Lenze Choice
C0595 MONIT CE4
3
0
Trip
2
Warning
3
Off
Configuration monitoring
“BusOffState” (CE4)
Tip!
Possible reasons for faulty telegrams may be:
•
A missing bus termination
•
Insufficient screening
•
Potential differences in the grounding of the control electronics
•
the bus load is too high
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