Technical data
Configurations for time synchronization of a PCS 7 plant
3.4 Configuration for time synchronization in a Windows domain
Time synchronization (V7.1)
40 Function Manual, 03/2009, A5E01216578-01
3.4 Configuration for time synchronization in a Windows domain
3.4.1 Configuration of time synchronization with central time master in a Windows
domain with a hierarchy
Introduction
In a Windows domain, you should synchronize the terminal bus and the plant bus directly
using the central plant clock.
The SICLOCK TC 400 is recommended as the central plant clock as it has four independent
Ethernet interfaces.
Configuration
The following figure illustrates the recommended configuration for a PCS 7 plant in a
Windows domain with a central time master:
'& '&
(QJLQHHULQJ
6WDWLRQ
$6 $6
26FOLHQWV %$7&+VWDWLRQ
26VHUYHU 26VHUYHU
7HUPLQDOEXV
3ODQWEXV
6,&/2&.
0
0
Time master
The SICLOCK central plant clock on the plant bus and the terminal bus
Central plant clock
The central plant clock is either synchronized with an external signal (e.g. GPS), or operates
with the internal realtime clock.