Protocol Specs

Revision1.40 DCM390 Serial Interface Specification
Date 24.May.’07 34 page of 40
D&M
2.6.16 A-B command
This command designates a point, B point in an A-B point designated repeating function. (CD)
1) Command format
Byte/bit 7 6 5 4 3 2 1 0
0 STX (0x02)
1 Command code (‘I’)
2 A-B Code (A-B OFF: ‘0’, A-set: ‘1’, B-Set: ‘2’)
3 Reserve (0x00)
4 Reserve (0x00)
5 Reserve (0x00)
6 ETX (0x03)
7 BCCH (high-level)
8 BCCL (low-level)
Table 51. A-B command
2) Answer format
Byte/bit 7 6 5 4 3 2 1 0
0 STX (0x02)
1 Reply code (‘I’)
2 Answer code
3 ETX (0x03)
4 BCCH (high-level)
5 BCCL (low-level)
Table 52. A-B answer
3) Special condition
As for this command, information condition changes by the condition of a/the main body.
1. A device ‘receives only A-Set' condition at the time of ' A-B off'.
2. A device ‘receives only B-Set' and' A-B off' condition at the time of ' A-Set'.
3. A device ' receives only A-B off' condition at the time of ' A-B Set'.