Rockwell Automation Allen-Bradley SynchLink 1756-DM Series Design Manual page 48

4-10
1756-SYNCH
Master
Node
SynchLink
Publication 1756-TD008A-EN-P - August 2002
Daisy Chain Topology Configuration #2
In this configuration, a ControlLogix SynchLink module is the master
node, and ControlLogix SynchLink modules are the center and end
nodes.
Figure 4.5
1756-SYNCH
Center
Node
ControlNet
Table 4.5 lists more information about this configuration.
Table 4.6
Category:
Time synchronization
Data transfer
Restrictions
Typical applications
(1)
The local ControlLogix controller must move the axis or buffered data. For more information, see page 1-7.
1756-SYNCH
Center
Node
Explanation:
Master - 1756-SYNCH module
Slaves - 1756-SYNCH modules
The SynchLink node clocks and the CST clocks are synchronized
across all nodes.
· Typically, this configuration is used to transfer direct data.
· If you want to pass axis or buffered data, the local
controller at each node must pass the data. Axis data
cannot be passed quickly in this configuration.
· A 1756-SYNCH module must be the time master.
· A 1756-SYNCH module is required in each chassis to
synchronize the CST.
· You can use a maximum of 10 SynchLink connections.
Transfer Press
1756-SYNCH
End
Node
(1)
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