Technical data

Configuring time synchronization
5.5 Configuring the time synchronization of the OS
Time synchronization (V7.1)
90 Function Manual, 03/2009, A5E01216578-01
5.5.6 How to set the OS server for reception of time service via DCF77RS
Requirements
● The DCF 77 receiver (DCF77RS) must be connected directly to a PC.
● In the Control Panel the COM interface must be set for the DCF 77 receiver.
● The extended FIFO setting must be switched off.
● The DCF 77 reception service must be installed, parameters must have been assigned,
and it must have been started.
You can find additional information on the installation of the DCF 77 reception service in
section "
Commissioning the DCF 77 receiver (Page 69)".
Procedure
To set the OS server for reception of the time service via DCF 77, proceed as follows:
1. Open the OS server in the PCS 7 project on the engineering station.
2. Select the "Time synchronization" editor from the tree view of WinCC Explorer.