2. Diagnosis
2-13
Festo P.BE-CTEU-CO-OP+MAINT-EN en 1101NH
2.3.3
Reaction to network communication faults
Note
Please observe the following if the outputs are reset in the
event of a PLC stop or field bus interruption or
malfunction:
– Single-solenoid valves move to the basic position.
– Double-solenoid valves remain in the current position.
– Mid-position valves move to the mid position (depending
on the valve type: pressurised, exhausted or blocked).
You can parameterise the behaviour of connected devices in
the event of a fault. All valves/outputs of connected devices
are reset as standard when the following faults and operating
states occur as soon as Node guarding or Heartbeat are activ-
ated via the configuration:
–
Communication error (Node guarding, Heartbeat)
–
Transition from operational to pre-operational or stopped
The behaviour of connected devices in the event of commu-
nication errors can be changed using the corresponding DIL
switches (see section 1.7).
2.3.4
Node guarding
In order for CANopen to recognise a fieldbus failure Node
guarding must be activated on the master controller (default:
switched off ).
In the case of actuators it is advisable to monitor the master
controller for failure in order to provide an appropriate emer-
gency shutdown strategy.
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Страница 14: ...Installation XII Festo P BE CTEU CO OP MAINT EN en 1101NH ...
Страница 15: ...Commissioning 1 1 Festo P BE CTEU CO OP MAINT EN en 1101NH Chapter 1 Commissioning ...
Страница 37: ...Diagnosis 2 1 Festo P BE CTEU CO OP MAINT EN en 1101NH Chapter 2 Diagnosis ...
Страница 51: ...Error treatment 3 1 Festo P BE CTEU CO OP MAINT EN en 1101NH Chapter 3 Error treatment ...
Страница 58: ...3 Error treatment 3 8 Festo P BE CTEU CO OP MAINT EN en 1101NH ...
Страница 59: ...Technical appendix A 1 Festo P BE CTEU CO OP MAINT EN en 1101NH Appendix A Technical appendix ...
Страница 74: ...A Technical appendix A 16 Festo P BE CTEU CO OP MAINT EN en 1101NH ...
Страница 75: ...Index B 1 Festo P BE CTEU CO OP MAINT EN en 1101NH Appendix B Index ...
Страница 76: ...B Index B 2 Festo P BE CTEU CO OP MAINT EN en 1101NH Contents B Index B 1 ...