Types Of Messaging - ABB ACSM1 Firmware Manual

Drive-to-drive function blocks can be used in the DriveSPC tool to enable additional
communication methods (such as follower-to-follower messaging) and to modify the
use of datasets between the drives. See the function blocks under
(page 301).

Types of messaging

Each drive on the link has a unique node address allowing point-to-point
communication between two drives. The node address 0 is automatically assigned
to the master drive; on other drives, the node address is defined by parameter
NODE ADDRESS.
Multicast addressing is supported, allowing the composition of groups of drives. Data
sent to a multicast address is received by all drives that have that address. A
multicast group can consist of 1...62 drives.
In broadcast messaging, data can be sent to all drives (actually, all followers) on the
link.
Both master-to-follower(s) and follower-to-follower(s) communication is supported. A
follower can send one message to another follower (or a group of followers) after
receiving a token message from the master.
Type of messaging
Point-to-point
Standard multicast
Broadcast
Token message for follower-to-follower communication
Chained multicast (Reference 1 only)
Master point-to-point
Read remote
Follower multicast
Communication
Note
Supported only at master
Supported only at master
Supported only at followers
For both master and followers
For both master and followers
–
Supported only for drive-to-drive reference 1
Appendix B – Drive-to-drive link
393
57.03