Omron CJ - REFERENCE MANUAL 07-2009 User Manual

108
C-mode Command Details Section 4-3
Execution Conditions
End Codes An end code of 14 (format error) will be returned if the length of the command
is incorrect and an end code of 15 (entry number data error) will be returned if
the specified words exceed the data area boundaries, or are not specified in
BCD, or if the number of words to read is 0.
Note The command is provided for compatibility with previous models. We recom-
mend using CIO AREA READ (RR) whenever possible.
4-3-4 HR AREA READ – – RH
Reads the contents of the specified number of HR words starting from the
specified word.
Command Format
Response Format
Limitations The text portion of the response’s first frame can contain up to 30 words. If
more than 30 words are read, the data will be returned in multiple frames.
In the second and later frames, the text portion of the response can contain
up to 31 words.
The INITIALIZE and ABORT commands can be sent instead of the delimiter
for multiple responses for this command. If other commands are sent, they will
be treated as delimiters.
Execution Conditions
End Codes An end code of 14 (format error) will be returned if the length of the command
is incorrect and an end code of 15 (entry number data error) will be returned if
Commands Responses PLC Mode UM Area
Single Multiple Single Multiple RUN MON PROG Write-protected Read-protected
OK No OK OK OK OK OK OK OK
End code (Hex) Contents
00 Normal completion
13 FCS error
14 Format error
15 Entry number data error
18 Frame length error
21 Not executable due to CPU Unit CPU error.
@
FCS
R
H
x 10
1
x 10
0
x 10
3
x 10
2
* ↵
x 10
1
x 10
0
x 10
3
x 10
2
x 10
1
x 10
0
Unit No.
(BCD)
Header
code
Beginning word
(0000 to 0511)
No. of words
(0001 to 0512)
Terminator
@RH
x 10
1
x 10
0
x 16
1
x 16
0
* ↵
x 16
3
x 16
2
x 16
1
x 16
0
FCSRead data (1 word)Header
code
Unit No.
(BCD)
End code Terminator
Read data (for number of words read)
Commands Responses PLC Mode UM Area
Single Multiple Single Multiple RUN MON PROG Write-protected Read-protected
OK No OK OK OK OK OK OK OK

Omron CJ - REFERENCE MANUAL 07-2009 Specifications

General

Brand	Omron
Model	CJ - REFERENCE MANUAL 07-2009
Category	Computer Hardware
Language	English