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Serial Communications
Section 6-3
CPU Unit Serial Gateway Function Specifications
Note
If a CJ-series Serial Communications Unit is connected via a CJ Unit Adapter,
messages can also be converted to Modbus-ASCII or Host Link FINS. Refer
to the
SYSMAC CS/CJ Series Serial Communications Boards/Units Opera-
tion Manual
(W336) for details.
6-3-5
Serial PLC Links
Overview
Serial PLC Links can be used to allow data to be exchanged among CP1L
and CJ1M CPU Units via the RS-422A/485 or RS-232C Option Boards
mounted to the CPU Units without requiring special programming. The com-
munications mode in the PLC Setup must be set to the Serial PLC Link Mode
to enable this functionality.
• Either serial port 1 or 2 can be used. (See note.)
• Words are allocated in memory in the Serial PLC Link Words (CIO 3100
to CIO 3199).
• A maximum of 10 words can be transferred by each CP1L CPU Unit, but
the number of linked words can be set to fewer words. (The size must be
the same for all CP1L CPU Units.)
Note
Serial PLC Links cannot be used on serial ports 1 and 2 at the same time. If
one port is set as a Serial PLC Link slave or master, it will not be possible to
set the other port for a Serial PLC Link. A PLC Setup error will occur if an
attempt is made to set both ports for Serial PLC Links.
Item
Specification
Pre-conversion data
FINS (via FINS network, Host Link FINS, toolbus, NT Link,
or CPU bus)
Conversion functions
FINS commands addressed to serial port 1 or 2 on the CPU
Unit are converted to CompoWay/F commands (after
removing the header) if the FINS command code is 2803
hex and to Modbus-RTU commands (after removing the
header) if the FINS command code is 2804 hex.
Post-conversion data
CompoWay/F command or Modbus-RTU command
Serial communications
method
1:N half-duplex
Maximum number of
nodes
31
Enabling serial commu-
nications mode
Serial Gateway Mode
Response timeout
The time from when a message converted to a different pro-
tocol is set until a response is received is monitored by the
serial gateway function.
Default: 5 s, User setting: 0.1 to 25.5 s
Note
A FINS response code of 0205 hex (response time-
out) is sent to the source of the FINS command if a
timeout occurs.
Send delay function
None
Содержание CP1L-L14D Series
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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...