ABB ACSM1 Series, Руководство по прошивке

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Appendix B – Drive-to-drive link
323
Follower multicast messaging (write only)
This type of messaging is for point-to-point communication between followers. After
receiving a token from the master, a follower can send one dataset to another
follower with a follower multicast message. The target drive is specified using the
node address.
Note: The data is not sent to the master.
Standard multicast messaging (write only)
In standard multicast messaging, one dataset can be sent to a group of drives
having the same standard multicast group address. The target group is defined by
the
D2D_Conf standard function block (see page 233 ).
The sending drive can either be the master, or a follower after receiving a token from
the master.
Note: The master does not receive the sent data even if it is a member of the target
multicast group.
Follower
Dataset table
(LocalDsNr)
TargetNode = X
57.03 NODE ADDRESS = X
Follower
Dataset table
(RemoteDsNr)
Master
Dataset table
Token
Follower
Dataset table
(RemoteDsNr)
Target Grp = X
57.12 REF1 MC GROUP = X
Follower
Dataset table
(RemoteDsNr)
Master
Dataset table
(LocalDsNr)
Master-to-follower(s) multicasting
57.12 REF1 MC GROUP = X