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)
Function Manual, 03/2009, A5E01216578-01
43
Time synchronization on the plant bus
● Synchronization is configured for all automation systems on the plant bus.
● The OS servers receive the time signal via the terminal bus from the authorized domain
controller (PDC operation master).
● Each OS server on the plant bus is configured as a cooperative time master. The OS only
activates the "time master" function if it does not receive any time signals on the plant
bus. OS servers that detect a time signal on the plant bus automatically operate as time
slaves.
Further information
● For information about the procedure for configuring the domain controllers as time
masters, refer to the relevant Microsoft reference material at the following address:
(
http://support.microsoft.com/kb/816042/en-us)
● Section "
Configuration steps for time synchronization without a central time master in a
Windows domain with a hierarchy (Page
59)"