Technical data
Fundamentals
2.7 Time synchronization in PCS 7 - mode of operation
Time synchronization (V7.1)
24 Function Manual, 03/2009, A5E01216578-01
Time synchronization with central plant clock and cooperative time master
In the image below, the SICLOCK is the time master for the plant.
The OS server pair (of redundant OS servers) and the automation systems are configured as
time slaves of the SICLOCK.
The OS server pair is the cooperative time master on the plant bus. One of the OS servers
assumes the time master function if the connection to the SICLOCK fails.
The OS server pair is configured as the time master on the terminal bus. The OS clients are
time slaves on the terminal bus.
6,&/2&.
$6 $6
0
26FOLHQWV
26VHUYHU
7HUPLQDOEXV
3ODQWEXV