Toshiba GR200 Series Instruction Manual page 624

Figure 10.4-8 Command receiving sequence
In the transmission format of General command (Type ID=20), customized items are
shown in Table 10.4-10.
Oct.
1 Start
2 Length
3 Length
4 Start
5 Control field
6 Address
7 Type identification (Type ID)
8 Variable structure qualifier
9 Cause of transmission (COT)
10 Common address of ASDU
11 Function type (FUN)
12 Information number (INF)
13 Double command (DCO)
14 Return Information identifier (RII)
15 Checksum
16 End
In the transmission format of Command ACK/NACK (Type ID=1), customized items
are shown in Table 10.4-11. The frame type of Command ACK/NACK is Time-tagged
message.
Table 10.4-11
Oct.
1 Start
2 Length
3 Length
Primary
station
General
Command
Class 1
Command
ACK/NACK
Table 10.4-10
General command (Type ID=20)
Item
Time-tagged message (Type ID=1)
Item
- 610 -
Secondary
station
ACK
Value
68H
10
10
68H
73H/53H
1-254 Setting from the relay
20
81H
20
1-254 Linked with Address setting
0-255
0-255 Customized by the GR-TIEMS
1/2
0-65535
16H
Value
68H
14
14
6F2S1931 (0.20)
Remarks
Remarks
Centralized GRB200
(Soft: 030, 031, 032, 033, 034)