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351
Serial Communications
Section 6-3
Note
Refer to OMRON’s Smart Library website for the most recent information on
using SAPs and function blocks.
Serial Gateway Function
When a FINS command is received, it is automatically converted to the proto-
col corresponding to the message and sent on the serial communications
path. Responses are also converted in the same way.
Note
Serial ports 1 and 2 on the CP1L CPU Unit can be used to convert to the fol-
lowing protocols.
• CompoWay/F
• Modbus-RTU
This functionality is enabled when the serial communications mode is set to
Serial Gateway.
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.
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
2804
2803
The serial gateway functionality is enabled when serial port 1 or 2 is set to
the Serial Gateway Mode.
FINS message (on network or CPU bus)
FINS header
CompoWay/F command
FINS header
Modbus-RTU command
Serial port 1 or
2 on CPU Unit
(Serial port 1 or 2)
CompoWay/F command
Modbus-RTU command
Summary of Contents for CP1L - 12-2007
Page 3: ...iv...
Page 9: ...x...
Page 13: ...xiv TABLE OF CONTENTS...
Page 21: ...xxii...
Page 33: ...xxxiv Conformance to EC Directives 6...
Page 65: ...32 Function Blocks Section 1 5...
Page 428: ...395 Clock Section 6 9...
Page 429: ...396 Clock Section 6 9...
Page 523: ...488 Troubleshooting Unit Errors Section 9 4...
Page 531: ...496 Replacing User serviceable Parts Section 10 2...
Page 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Page 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Page 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Page 669: ...634 Index...
Page 671: ...636 Revision History...