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V530-R160
Operation Manual
SE
C
T
IO
N
8
Se
rial
Int
e
rf
ac
e (Hos
t Link)
SECTION 8
Communication with the Host
Using TXD Instructions
This is a method in which commands are not set in the Read Area but are actively sent from the
programmable controller to the controller.
Set the
Read Area
to
None
.
While the command is being executed, the BUSY signal of the parallel
I/O interface is ON.
A timeout error occurs if there is no response within
5 seconds and it is assumed that the line is broken or
the programmable controller is not working correctly.
An error message is displayed on the screen and the ERR
signal of the parallel I/O interface is turned ON.
Programmable Controller
Unit number: 00 (Fixed)
F160
Controller
Executes command.
Writes data to the Write Area.
Returns write completed
response.
[Write Area]
END
Issue the TXD command.
Set "3 bytes" for the number
bytes of send data.
Содержание V530-R160E
Страница 36: ...34 SECTION 1 Operational Flow V530 R160 Operation Manual SECTION 1 Outline MEMO...
Страница 144: ...142 SECTION 5 Setting Reading Conditions QRCode V530 R160 Operation Manual SECTION 5 Setting Reading Conditions MEMO...
Страница 192: ...190 SECTION 7 Checking the Version Version V530 R160 Operation Manual SECTION 7 System Settings MEMO...
Страница 250: ...248 SECTION 8 Serial Interface Host Link V530 R160 Operation Manual SECTION 8 Communication with the Host MEMO...
Страница 288: ...286 SECTION 10 Glossary SECTION 10 V530 R160 Operation Manual SECTION 10 Appendix MEMO...