R
I am trying to deal with redundancy of PROFIBUS masters, which is an important functionality in DCS. I saw different solutions. Some vendors are proposing intelligent "y-switches" capable of handling switchover from two different masters, thus connecting slaves with a single interface; some others are proposing intelligent PROFIBUS masters with an embedded capability of a mutual
agreement on the mastership, and both masters are connected to the field in multi-drop to the chain of slaves.
In both cases the slaves are not aware of the tricks above, so any standard slave can be managed.
Unfortunately, as far as I know, there is no general statement from the committees about which is the "standard" way to manage MASTER redundancy.
Does anybody know more?
Rob
agreement on the mastership, and both masters are connected to the field in multi-drop to the chain of slaves.
In both cases the slaves are not aware of the tricks above, so any standard slave can be managed.
Unfortunately, as far as I know, there is no general statement from the committees about which is the "standard" way to manage MASTER redundancy.
Does anybody know more?
Rob