4.3 Data Format
Data format is shown below.
Start bit B1 B2 B3 B4 B5 B6 B7 B8 Parity Stop bit
Start bit 1 bit
Data bit 7 bits/8 bits
Parity Even parity/Odd parity/No parity
Stop bit 1 bit/2 bits
4.4 Command Structure
All commands are composed of ASCII, and have the following structures.
Numerals written above the command represent the number of characters.
4.4.1 RCP Command Structure
Contact Area Read
Reads ON/OFF status of multiple contacts (R only).
8 points to 1 command can be specified.
Command
1 2 1 3 1 1 4
% # RCP R
25H
Address
(Decimal)
23H 52H 43H 50H
Number of
contacts n
(1 to 8)
52H
Contact No.
(1)
10
1
10
0
10
3
10
2
10
1
16
0
1 4 2 1
R C
R
52H
Contact No.
(n)
BCC
0DH
10
3
10
2
10
1
16
0
16
1
16
0
Acknowledgement
1 2 1 2 1 1 2 1
% $ RC C
R
25H
Address
(Decimal)
24H 52H 43H
Contact data
(1)
Contact data
(n)
BCC
0DH
10
1
10
0
16
1
16
0
Negative acknowledgement
1 2 1 2 2 1
% ! C
R
25H
Address
(Decimal)
21H
Error code
(Hexadecimal)
BCC
0DH
10
1
10
0
16
1
16
0
16
1
16
0
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