4-5
Section
Host Link Commands
304
Response Format
An end code of 00 indicates normal completion.
,
@
Q
Q
x 10
0
x 10
1
x 16
1
x 16
0
I
R
x 16
3
x 16
2
x 16
1
x 16
0
↵
ON/
OFF
x 10
3
x 10
2
x 10
1
x 10
0
ON/
OFF
Node no.
Header
code
Sub-header
code
End code
Timer/counter
If PV is specified the status
of the Completion Flag is
also returned.
Data break
Bit data
ON/OFF
Word data
IR, SR, LR, HR,
AR, DM
Terminator
FCS
,
,
,
Parameters
Read Data (Response)
Read data is returned according to the data format and the order in which read
information was registered using QQ. If “Completion Flag” has been specified,
then bit data (ON or OFF) is returned. If “Word” has been specified, then word
data is returned. If “PV” has been specified for timers/counters, however, then
the PV is returned following the Completion Flag.
Data Break (Response)
The break code (, ) is returned between sections that are read.
4-5-31 ABORT – XZ
Aborts the Host Link operation that is currently being processed, and then en-
ables reception of the next command. The ABORT command does not receive a
response.
Command Format
@
X
Z
x 10
0
x 10
1
↵
Node no.
Header
code
Terminator
FCS
4-5-32 INITIALIZE –
Initializes the transmission control procedure of all the PCs connected to the
host computer. The INITIALIZE command does not use node numbers or FCS,
and does not receive a response.
Command Format
↵
@
4-5-33 TXD RESPONSE – EX
This command is supported by CPM2A/CPM2C PCs only.
This is the response format used when the PC’s TXD(48) instruction is executed
in Host Link communications mode. There is no command associated with EX.
TXD(48) converts the specified data into ASCII and transmits it to the host com-
puter with this format. The response can contain up to 122 characters of ASCII
data. (TXD(48) does not support multiple frames.)
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