Toshiba GR200 Series - 5.7.3 Time Synchronization; (i) Synchronization using SNTP; (i)-1 Example of SNTP synchronization; (i)-2 Setting procedure

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 1103 -
5.7.3 Time Synchronization
The synchronization function can run when a synchronized signal is provided for respective
IEDs; the user should select one of the following synchronization methods using the setting
[Time_Sync_Src]:
• SNTP method
• IRIG-B method
• Binary Input (BI) method
(i) Synchronization using SNTP
Example of SNTP synchronization
The SNTP method is possible when IEDs connect with time-servers. Figure 5.7-3 exemplifies
two servers are connected with the IEDs using the LAN.
Time server1
Time server2
IED_1
IED_2
LAN
IED_n
………….
Figure 5.7-3 Two time servers connected on the LAN
Setting procedure
The user should make the following steps in respective IEDs.
1) Set SNTP for the setting [Time Sync Src]; then set On for the setting [SNTP].
2) Set the address of a time server using settings [Server1]. The settings [Server2],
[Server3], and [Server4] are provided for other time-servers.
3) Check that the SNTP is shown under the ActivSyncSrc, as shown in Figure 5.7-4.
4) Check to see that the time zone and the DST are set correctly (see 5.7.4 and 5.7.5).
Clock
10:00 1/2
[Time] +
2012-11-21 10:00:05
[Format]
YYYY-MM-DD HH:mm:ss
[ActiveSyncSrc] >
SNTP
Check “SNTP” being shown under ActiveSyncSrc.
Figure 5.7-4 Time setting for SNTP
Table 5.7-1 Settings for the SNTP synchronization
Setting item
Range
Contents
Setting example
Notes
TimeSyncSrc
SNTP / BI / IRIG-B
Selection of sync method
SNTP
SNTP
Off /On
Operation of SNTP
()On
Server1
000.000.000.000–255.255.255.255
Setting for Time server 1
197.1.23.11
Server2
000.000.000.000–255.255.255.255
Setting for Time server 2
000.000.000.000
Server3
000.000.000.000–255.255.255.255
Setting for Time server 3
000.000.000.000
Server4
000.000.000.000–255.255.255.255
Setting for Time server 4
000.000.000.000