Siemens TIM 1531 IRC, Руководство по эксплуатации

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Configuration
4.15 Time stamp
TIM 1531 IRC
Operating Instructions, 02/2018, C79000-G8976-C468-02
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Configuring the synchronization via classic WAN networks
TIM modules (time master and slaves)
1.
In the parameter group "Receive time" of the TIM to be time master configure the time
source with one of the following options:
–
From NTP server
– From local station
(take the time from the assigned CPU)
– Receive time from WAN
(take the time from a network)
2. Configure the interface of the master TIM as network node type "Master station".
3. Configure the interfaces of the other TIM modules (time slaves) as network node type
"Node station" or "Station".
4. If necessary, enable the "To local station" option in the "Send time" parameter group of
the stations if the assigned CPU should also be synchronized.
WAN network
1.
In the parameter group "Time-of-day synchronization" of the network enable the option
"Enable time-of-day synchronization for WAN".
2. There configure the required synchronization cycle.
3. Network the interfaces of all TIM modules involved with the WAN network.
The settings configured for the WAN network are adopted in the following parameter
groups of the connected TIM modules:
–
For the time master (Master station): "Send time" parameter group
– For the time slaves (node stations / station) "Receive time" parameter group
4.15 Time stamp
Time stamp of the ST7 frames
The values of the data points are transferred by the communications moduel with a time
stamp, see also section Creating telecontrol connections for the ST7 communication
(Page 99), subsection "Connections to redundant control centers and other properties".
Format of the time stamp
The ST7 time stamp is coded in BCD format. The exception is the half byte (nibble) with the
time status.
The structure of 8 bytes is assigned as follows: