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)
44 Function Manual, 03/2009, A5E01216578-01
3.4.3 Configuration of the time synchronization in a Windows domain with multiple
hierarchies
Configuration
The following figure shows a sample configuration for time synchronization in a Windows
domain with multiple hierarchies:
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Rules
In order to avoid time jumps, please observe the following rules when setting up the
hierarchy for the PCS 7 plants within a Windows domain that contains multiple hierarchies:
All identical structures must be assigned to the same levels in a Windows domain that
contains multiple hierarchy levels. This will prevent unwanted time differences.
For further information, refer to the section titled "
Time levels for a PCS 7 plant (stratum)
(Page
17)".
Create only one hierarchy level under the root domain. Set up any additional Windows
domains you may require on the same hierarchy level as the existing subdomains.