Toshiba GR200 Series - (ii) Synchronization using IRIG-B; (ii)-1 Example of IRIG-B synchronization; (ii)-2 Setting procedure; (ii)-3 Setting year in IRIG-B

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 1104 -
(ii) Synchronization using IRIG-B
Example of IRIG-B synchronization
The IRIG-B method is possible when a synchronization signal in the IRIG-B format is provided.
The synchronization signal is transferred using the IRIG-B000 module†.
IED
IRIG-B signal
generator Unit
A1
A3
Signal
GND
IRIG-B000†
Clock
10:00 1/2
[Time] +
2012-11-21 10:00:05
[Format]
YYYY-MM-DD HH:mm:ss
[ActiveSyncSrc]
IRIG-B
Figure 5.7-5 IED connected with the signal generator unit using IRIG-B000 module
†Note: See Chapter Technical description: Signal processing and communication module .
Setting procedure
The user should make the following steps in respective IEDs.
1) Set IRIG-B for the setting [Time Sync Src]; then set On for the setting [IRIG-SYNC].
2) Check that the IRIG-B is shown under the ActivSyncSrc, as shown in Figure 5.7-6.
Clock
10:00 1/2
[Time] +
2012-11-21 10:00:05
[Format]
YYYY-MM-DD HH:mm:ss
[ActiveSyncSrc]
IRIG-B
Check “IRIG-B” being shown under ActiveSyncSrc.
Figure 5.7-6 Time setting for IRIG-B
Setting year in IRIG-B
When the IRIG-B data is generated in the IEEE C37.118 / IRIG-B000 format, the user should
set On for setting [USE_BCDYEAR]. Conversely, when the IRIG-B data with absence the
C37.118† is generated, Off should be set for the setting [USE_BCDYEAR].
†Note: “Year” is informed from the IED clock itself when the C37.118 is absent.
Setting UTC/local time
When the IRIG-B data is generated in the UTC†, set Off for the setting [USE_LOCALTIME].
Conversely, when the IRIG-B data is generated in the local time‡, set On for setting
[USE_LOCALTIME]; set Off for the setting [IS_UTC_base].
†Note: We shall see the settings of the UTS in section 5.7.4.
‡Note: In the IRIG-B signal generator unit, the DST settings should be corresponded to
the DST settings of the IED. We shall see the DST settings in section 5.7.5.