366
Serial Communications
Section 6-3
Procedure
Host Link Commands
The following table lists the host link commands. Refer to the
SYSMAC
CS/CJ-series Communications Commands Reference Manual
(W342) for
more details.
Set the PLC Setup from the CX-
Programmer.
(Set the communications mode to
Host Link and set the parameters.)
Power OFF
Connect the CPU Unit and external device
via RS-232C. (Mount the RS-232C Option
Board in option slot 1 or 2.)
Set the DIP switch on the front of
the CPU Unit.
Turn pin 4 OFF when suing serial port 1.
Turn pin 5 OFF when suing serial port 2.
Power ON
Host computer to PLC
PLC to Host computer
Send Host Link
commands from
the host computer.
Send FINS
commands from
the host computer.
Execute SEND/RECV/CMND
instructions in the PLC’s program.
Return a response from the host
computer. (A program is required in
the host computer.)
Type
Header
code
Name
Function
I/O mem-
ory read
commands
RR
CIO AREA READ
Reads the contents of the specified number of CIO Area words starting from
the specified word.
RL
LINK AREA READ
Reads the contents of the specified number of Link Area words starting from
the specified word.
RH
HR AREA READ
Reads the contents of the specified number of Holding Area words starting
from the specified word.
RC
PV READ
Reads the contents of the specified number of timer/counter PVs (present
values) starting from the specified timer/counter.
RG
T/C STATUS READ Reads the status of the Completion Flags of the specified number of tim-
ers/counters starting from the specified timer/counter.
RD
DM AREA READ
Reads the contents of the specified number of DM Area words starting from
the specified word.
RJ
AR AREA READ
Reads the contents of the specified number of Auxiliary Area words starting
from the specified word.
Содержание CP1L - 12-2007
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Страница 33: ...xxxiv Conformance to EC Directives 6...
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Страница 523: ...488 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...496 Replacing User serviceable Parts Section 10 2...
Страница 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...604 Connections to Serial Communications Option Boards Appendix F...
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