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368
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-L14D Series
Страница 2: ...CP1L L14D CP1L L20D CP1L M30D CP1L M40D CP1L CPU Unit Operation Manual Revised June 2007...
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Страница 13: ...xiv TABLE OF CONTENTS...
Страница 21: ...xxii...
Страница 33: ...xxxiv Conformance to EC Directives 6...
Страница 65: ...32 Function Blocks Section 1 5...
Страница 153: ...120 CP CPM1A series Expansion I O Unit Wiring Section 3 6...
Страница 523: ...490 Troubleshooting Unit Errors Section 9 4...
Страница 531: ...498 Replacing User serviceable Parts Section 10 2...
Страница 563: ...530 Auxiliary Area Allocations by Function Appendix C...
Страница 611: ...578 Auxiliary Area Allocations by Address Appendix D...
Страница 638: ...605 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 639: ...606 Connections to Serial Communications Option Boards Appendix F...
Страница 669: ...636 Index...
Страница 671: ...638 Revision History...