No balancing of the bus subscriber list after a unit disturbance
- Pulling out the fuse
The fault can be eliminated by briefly pulling out the fuse on the units in which the subscriber is unknown.
A unit (CMX) is apparently no longer linked.
- Unknown bus subscriber number
The unit is not assigned the master function although it is no longer disturbed. This occurs because its subscriber number in one (normal case: subscriber number=own subscriber number -1) or several units is unknown. (No entry in the corresponding subscriber list of the A-bus interface of the bus).