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4.4.3 RD Command Structure
Data Area Read
Reads contents of data area (DT area only).
16 pieces of data to 1 command can be specified.
Command
1
%
Address
(Decimal)
25H
Acknowledgement
1
%
Address
(Decimal)
25H
Negative acknowledgement
1
%
Address
(Decimal)
25H
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2
1
#
23H
52H 44H
1
0
10
10
2
1
$
24H
52H 44H
1
0
10
10
2
1
!
Error code
(Hexadecimal)
21H
1
0
10
10
16
2
1
RD
D
Starting data No.
( Decimal)
44H
4
10
2
4
RD
Starting data
(Hexadecimal)
1
0
3
16
16
16
16
Low High
2
2
C
BCC
0DH
1
0
1
0
16
16
16
5
3
2
1
0
10
10
10
10
5
Ending data No.
(Decimal)
4
3
2
1
10
10
10
10
10
4
Ending data
(Hexadecimal)
2
1
0
16
16
16
Low High
1
R
2
1
C
R
BCC
0DH
0
1
0
16
16
3
2
16
2
1
C
R
BCC
0DH
1
0
16
16
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