Configuration Of Time Synchronization With Central Time Master In A Windows Domain With A Hierarchy - Siemens SIMATIC PCS 7 Function Manual

3.4.2 Configuration of time synchronization with central time master in a Windows domain
with a hierarchy
Configuration
The figure below illustrates the recommended configuration of a PCS 7 plant with time
synchronization and without a central time master in a Windows domain.
Time master
Domain controller (DC) with PDC emulator operation master role
Time synchronization on the terminal bus
● Time source:
● Passive time master:
● Time slaves:
● PC stations without WinCC time synchronization, such as a BATCH station or engineering
Time synchronization (V8.0)
Function Manual, 03/2012, A5E02779849-02
The domain controller receives the time via an NTP time server, e.g. by means of a radio
signal (DCF 77 or GPS module) that contains the precise time.
If the authenticated domain controller (PDC operation master) fails, another domain
controller automatically takes over time synchronization within the network.
All other plant PCs are time slaves of the domain controller due to their membership in the
Windows domain.
station, are synchronized using a DCF 77 reception service, which must be installed
separately. One of the domain controllers or an OS server can be used as the time master.
Configurations for time synchronization of a PCS 7 plant
3.4 Configuration for time synchronization in a Windows domain
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