ABB ACSM1 Firmware Manual page 159

57.14 NR REF1 MC GRPS
In the master drive, sets the total number of links (followers or groups of followers) in the multicast
message chain. See parameter
Notes:
• This parameter has no effect if the drive is a follower.
• The master counts as a member of the chain if acknowledgement from the last drive to the master is
desired.
1...62
57.15 D2D COMM PORT
Defines the hardware to which the drive-to-drive link is connected. In special cases (such as harsh
operating conditions), the galvanic isolation provided by the RS-485 interface of the FMBA module
may make for more robust communication than the standard drive-to-drive connection.
(0) ON-BOARD
(1) SLOT 1
(2) SLOT 2
(3) SLOT 3
FW block: D2D COMMUNICATION
57.11 REF 1 MSG TYPE.
Total number of links in multicast message chain.
FW block: None
Connector X5 on the JCU Control Unit is used.
An FMBA module installed in JCU option slot 1 is used.
An FMBA module installed in JCU option slot 2 is used.
An FMBA module installed in JCU option slot 3 is used.
(see above)
Parameters and firmware blocks
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