Rockwell Automation Allen-Bradley SynchLink 1756-DM Series Design Manual page 49

Master
Node
SynchLink
Daisy Chain Topology Configuration #3
In this configuration, the ControlLogix SynchLink module is the master
node, and PowerFlex 700s drives are the center and end nodes.
Figure 4.6
Center
Node
ControlNet
Table 4.7 lists more information about this configuration.
Table 4.7
Category:
Time synchronization
Data transfer
Restrictions
Typical applications
(1)
The local ControlLogix controller must move the buffered data for a 1756-SYNCH module. For the PowerFlex
700S drives, the drive's VPL microprocessor must move the data. For more information, see page 1-7.
Center
Node
Explanation:
Master - 1756-SYNCH module
Slaves - PowerFlex 700S drives
The SynchLink time value is synchronized across all nodes.
· Typically, this configuration is used to transfer direct data.
· If you want to pass buffered data, the local controller at
each node must pass the data.
· Drive VPLs are synchronized to the SynchLink node clock.
· Axis data is not supported in this configuration.
· The 1756-SYNCH module cannot be downstream from a
PowerFlex 700S drive.
· You can use a maximum of 10 SynchLink connections.
· Drawing application
· Torque sharing application
· Master reference generation
Publication 1756-TD008A-EN-P - August 2002
4-11
End
Node
43093
(1)