4-5
Section
Host Link Commands
282
4-5-2 LR AREA READ – RL
Reads the contents of the specified number of LR words, starting from the speci-
fied word.
Command Format
@
R
L
FCS
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
Node no.
Header
code
Beginning word
1
No. of words
2
Terminator
Note
1. Beginning word: 0000 to 0015
2. No. of words: 0001 to 0016
Response Format
An end code of 00 indicates normal completion.
@
R
L
x 10
1
x 10
0
x 16
1
x 16
0
↵
x 16
3
x 16
2
x 16
1
x 16
0
FCS
Node no.
Header
code
End code
Read data (1 word)
Read data (for number of words read)
Terminator
Parameters
Read Data (Response)
The contents of the number of words specified by the command are returned in
hexadecimal as a response. The words are returned in order, starting with the
specified beginning word.
4-5-3 HR AREA READ – RH
Reads the contents of the specified number of HR words, starting from the speci-
fied word.
Command Format
@
R
H
FCS
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
Node no.
Header
code
Beginning word
1
No. of words
2
Terminator
Note
1. Beginning word: 0000 to 0019
2. No. of words: 0001 to 0020
Response Format
An end code of 00 indicates normal completion.
@
R
H
x 10
1
x 10
0
x 16
1
x 16
0
↵
x 16
3
x 16
2
x 16
1
x 16
0
FCS
Read data (1 word)
Header
code
Node no.
End code
Terminator
Read data (for number of words read)
Parameters
Read Data (Response)
The contents of the number of words specified by the command are returned in
hexadecimal as a response. The words are returned in order, starting with the
specified beginning word.
4-5-4 PV READ – RC
Reads the contents of the specified number of timer/counter PVs (present val-
ues), starting from the specified timer/counter.