Technical data

Configuring time synchronization
5.5 Configuring the time synchronization of the OS
Time synchronization (V7.1)
88 Function Manual, 03/2009, A5E01216578-01
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.
3. Select Open from the shortcut menu.
The "Time Synchronization" dialog box opens.
4. Select the "Synchronization via terminal bus (slave)" check box.
5. Select the "Use the time from a connected WinCC server" check box.
6. Click "OK".
Perform these steps for every OS client that you wish to synchronize.
Result
The communication module will now receive and send time message frames. The OS
servers are cooperative time masters. If a communications processor (CP1613, CP 1623)
does not receive a time signal, WinCC time synchronization automatically switches to master
mode. It will then send substitute time signals for the failed time master.