Siemens SIMATIC PCS 7 Function Manual page 80

Configuring time synchronization
5.5 Configuring the time synchronization of the OS
4. Select the "Synchronization via terminal bus (slave)" check box.
5. Activate the "Accept time from permanently defined computers" check box and select for
6. For "Computer 2", select an additional domain controller to act as a passive time master if
7. Select the "Synchronization via plant bus (master, slave)" check box.
8. Select the check box "Display symbolic names of the access points". This will display the
9. Select the CP you parameterized for time synchronization from the "Access point 1" drop-
10.Activate the "Master" option button.
11.If using a redundant CP, select the required CP from the "Access point 2" drop-down list
12.Activate the associated "Master" option button (default setting).
13.Click "OK".
Perform these steps for every OS server that you wish to synchronize.
Configuring OS clients for time synchronization
To configure time synchronization for the OS clients, proceed as follows:
1. Open the OS client in the PCS 7 project on the engineering station.
2. Select the "Time synchronization" editor from the tree view of WinCC Explorer.
80
"Computer 1" the domain controller that is parameterized as the time master.
redundancy is possible.
communication modules of the OS server with symbolic names, if they are not available on
the engineering station.
down list box.
box.
Time synchronization (V8.0)
Function Manual, 03/2012, A5E02779849-02