Panasonic LightPix AE20, User Manual

Page: 116 / 151

6.2 Command Format
6.2.1 Reading Data Area: RD
External device
→
LightPixAE20
Receiver:
(Station No.)
# R D D
Head register No.: Five characters
%
or
< x 10
1
x 10
0
Fixed
x 10
4
x 10
3
x 10
2
x 10
1
x 10
0
Terminal register No.: Five
characters
BCC
C
R
x 10
4
x 10
3
x 10
2
x 10
1
x 10
0
x 16
1
x 16
0
Fixed
LightPixAE20 → external devices
If normal response consists of integers
Contents of the register
(head): Four characters
Sender:
(Device No.)
$ R D
x 16
1
x 16
0
x 16
3
x 16
2
%
or
<
x 10
1
x 10
0
Fixed Low High
Contents of the register
(terminal): Four
characters
BCC
x 16
1
x 16
0
x 16
3
x 16
2
C
R
Low High
x 16
1
x 16
0
Fixed
If normal response is a double-word type and consists of actual numbers
Contents of the register:
Four characters
Low Contents of the register
(head): Four characters
High
Sender
(Station No.)
$ R D
x 16
5
x 16
4
x 16
7
x 16
6
x 16
1
x 16
0
x 16
3
x 16
2
%
or
<
x 10
1
x 10
0
Fixed Low High Low High
Contents of the register
(head): Four characters
Low
Contents of the register
(terminal): Four
characters High
BCC
x 16
5
x 16
4
x 16
7
x 16
6
x 16
1
x 16
0
x 16
3
x 16
2
C
R
Low High Low High
x 16
1
x 16
0
Fixed
Error response
Sender:
(Station No.
! Error code BCC
C
R
%
or
<
x 10
1
x 10
0
Fixed
x 16
1
x 16
0
x 16
1
x 16
0
Fixed
Actual numbers in a response message are in the IEEE format.
110