Time-Of-Day Synchronization - Siemens TIM 1531 IRC Operating Instructions Manual

Table 4- 3
Configured interface
Coding for substitute
path
0 0
0 0
0 0
0 0
0 1
0 1
0 1
0 1
1 0
1 0
1 0
1 0
1 1
1 1
1 1
1 1
4.14

Time-of-day synchronization

Basics of time-of-day synchronization
With telecontrol application that require time-of-day synchronization, you need to
synchronize the time of day of the TIM regularly. If you do not synchronize the time of day,
there may be deviations of several seconds per day in the time information of the stations.
The TIM can obtain the time of day from an external source (for the methods see below) and
forward the time of day to the station or the connected WAN networks.
When using an external time source, the connected S7 station can obtain the current time of
day both via the CPU as well as via the TIM or a CP.
TIM 1531 IRC
Operating Instructions, 02/2018, C79000-G8976-C468-02
Coding options for the path status
Coding for main path
0 0 (Coding for IE1)
0 1 (Coding for IE2)
1 0 (Coding for IE3)
1 1 (Coding for WAN1)
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
0 0
0 1
1 0
1 1
4.14 Time-of-day synchronization
Path status
Substitute path (2nd Main path (1st path)
path)
Irrelevant (not redun- Status IE1
dant)
Status IE1 Status IE2
Status IE1 Status IE3
Status IE1 Status WAN1
Status IE2 Status IE1
Irrelevant (not redun- Status IE2
dant)
Status IE2 Status IE3
Status IE2 Status WAN1
Status IE3 Status IE1
Status IE3 Status IE2
Irrelevant (not redun- Status IE3
dant)
Status IE3 Status WAN1
Status WAN1 Status IE1
Status WAN1 Status IE2
Status WAN1 Status IE3
Irrelevant (not redun- Status WAN1
dant)
Configuration
85