4-5
Section
Host Link Commands
284
Command Format
@
R
D
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
Terminator
Beginning word*
No. of words
(0001 to 6656)
Note
Beginning word:
DM 0000 to DM 1023 and DM 6144 to DM 6655 in CPM1/CPM1A PCs
DM 0000 to DM 2047 and DM 6144 to DM 6655 in CPM2A/CPM2C/SRM1(-V2)
PCs. (A response of “0000” will be returned for non-existent DM words.)
Response Format
An end code of 00 indicates normal completion.
@
R
D
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.
End code
Header
code
Read data (1 word)
Read data (for number of words read)
Terminator
Note
1. Words DM 1024 to DM 6143 in CPM1/CPM1A PCs and words DM 2048 to
DM 6143 in CPM2A/CPM2C/SRM1(-V2) PCs cannot be specified. If an at-
tempt to read any of these words is made, a response of 0000 will be re-
turned.
2. The response will be divided when reading more than 30 words of data.
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.
Note
Be careful about the configuration of the DM area, as it varies depending on the
CPU Unit model.
4-5-7 AR AREA READ – RJ
Reads the contents of the specified number of AR words, starting from the speci-
fied word.
Command Format
@
R
J
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
Terminator
Beginning word
1
Node no.
Header
code
No. of words
2
Note
1. Beginning word: 0000 to 0023 in CPM2A/CPM2C PCs, 0000 to 0015 in
CPM1/CPM1A/SRM1(-V2) PCs
2. No. of words: 0001 to 0024 in CPM2A/CPM2C PCs, 0001 to 0016 in
CPM1/CPM1A/SRM1(-V2) PCs
Response Format
An end code of 00 indicates normal completion.
@
R
J
FCS
x 10
1
x 10
0
x 16
1
x 16
0
↵
x 16
3
x 16
2
x 16
1
x 16
0
Node no.
End code
Header
code
Read data (1 word )
Read data
(for number of words read)
Terminator