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SynchLink Operation
Publication 1756-TD008A-EN-P - August 2002
In the simplest terms, you can use SynchLink to:
· synchronize time
· transfer data, including axis data for synchronized mtion control
and general data
Time Synchronization
SynchLink uses a time master-slave mechanism to achieve time
synchronization. Time synchronization in a SynchLink system is
required to:
· transfer motion and drive control data.
· synchronize distributed 1756-DMxxx series modules in separate
chassis.
· synchronize distributed PowerFlex 700S drives for highly
coordinated drive control.
· synchronize multiple distributed motion control planners across
separate chassis for highly coordinated motion control.
SynchLink Node Clock
The SynchLink node clock is a base-line requirement of any product
incorporating SynchLink and integral to all devices that contain
SynchLink circuitry. The SynchLink node clock has a 1 m S resolution
and serves as the system clocking mechanism.
During system configuration, you configure one SynchLink node as
the time master and all other SynchLink nodes as time slaves. The
time master becomes the system clock for the entire control system.
As such, the SynchLink time master broadcasts its time reference to
the SynchLink time slaves; the time slaves, in turn, adjust their node
clocks to match the master clock.
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