356 Drive-to-drive link
îš„ Chained multicast messaging
Chained multicasting is supported for drive-to-drive reference 1 and Control word by
the firmware.
The message chain is always started by the master. The target group is defined by
parameter 57.13 Next ref1 mc grp. The message is received by all followers that have
parameter 57.12 Ref1 mc group set to the same value as parameter 57.13 Next ref1
mc grp in the master.
If a follower has parameters 57.03 Node address and 57.12 Ref1 mc group set to the
same value, it becomes a submaster. Immediately after a submaster receives the
multicast message, it sends its own message to the next multicast group defined by
parameter 57.13 Next ref1 mc grp.
The duration of the entire message chain is approximately 15 microseconds
multiplied by the number of links in the chain (defined by parameter 57.14 Nr ref1 mc
grps in the master).
To Next Page
Loading...
Need help?
General
