Toshiba GR200 Series - (iii) Synchronization using BI signal; (iii)-1 Example of time synchronization via BI circuit

6F2S1914 (0.49)
GRL200 (Soft 033 & 037)
- 1105 -
Table 5.7-2 Settings for the IRIG-B Time synchronization
Setting item
Range
Contents
Setting
example
Notes
TimeSyncSrc
SNTP / BI / IRIG-B
Selection of sync method
IRIG-B
IRIG-SYNC
Off /On
Operation of IRIG-B
On
USE_BCDYEAR
Off / On
Selection of IEEE C37.118/IRIG-B000
Off
USE_LOCALTIME
Off / On
Operation in the local time
Off
(iii) Synchronization using BI signal
When accurate1Hz square-wave can be supplied as a reference clock, the clock function can
make the time synchronization. The 1Hz square-wave is transferred using a binary input
circuit (BI).
Example of time synchronization via BI circuit
Figure 5.7-7 exemplifies that the 1Hz square-wave is provided via the BI1 circuit†.
BI1A
BI1
BI2
BI3
BI4
BI5
BI6
BI7
BI8
BI9
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
BI10
BI11
BI12
BI13
BI14
BI15
BI16
BI17
BI18
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
1Hz squire wave
IED
BI1
(200B01 8001001111)
Setting [BI_ID]
Signal generator
Clock
IO#1
Figure 5.7-7 IED connected with the signal generator via BI module
†Note: The BI1 circuit is just used for the explanation; hence, an actual BI circuit should
be selected in accordance with wiring cables. For more information of the BI
circuit, see Chapter Technical description: Binary IO module .