Omron CJ - REFERENCE MANUAL 07-2009 User Manual

67
Serial Gateway Overview Section 3-6
Using a Serial Communications Board/Unit
3-6-2 Types of Protocol Conversion
3-6-3 Converting FINS to CompoWay/F
OMRON Components connected serially to a PC via CompoWay/F can be
accessed from the CPU Unit or PT using CompoWay/F commands enclosed
in FINS messages.
• Sent FINS message: FINS header + FINS command code 2803 hex +
CompoWay/F command
• Message after conversion: CompoWay/F command
2803
2804
2805
FINS header
FINS header
FINS header
FINS header
User-
specified
CompoWay/F command
Modbus-RTU command
Modbus-ASCII command
User-specified data
CompoWay/F command
Modbus-RTU command
Modbus-ASCII command
Host Link header
Serial
Communications
Board/Unit
The Serial Gateway is enabled under the following conditions.
• In Serial Gateway mode
• In protocol macro mode with the Serial Gateway Prohibit Switch turned OFF
FINS message (via network or CPU bus)
RS-232C or RS-422A/485
User-specified
FINS command
Terminator
Type of
conversion
(from FINS)
Frame before conversion Processing at
Board/Unit
Protocol after
conversion
(using serial
communica-
tions)
Target (commu-
nications part-
ner)
Destination
address
FINS
command
FINS data
Converting to
CompoWay/F
Serial port
number on
Board/Unit
2803 hex CompoWay/F
command
CompoWay/F
command with
FINS header
removed sent to
serial port.
CompoWay/F
command
OMRON Compo-
nent (e.g., Tem-
perature
Controller, Digital
Panel Meter, or
Smart Sensor)
Converting to
Modbus-RTU
2804 hex Modbus-RTU
command
Modbus-RTU
command with
FINS header
removed sent to
serial port.
Modbus-RTU
command
Modbus-RTU
Slave-compatible
device (including
OMRON 3G3JV,
3G3MV, and
3G3RV Inverters)
Converting to
Modbus-ASCII
2805 hex Modbus-ASCII
command
Modbus-ASCII
command with
FINS header
removed sent to
serial port.
Modbus-ASCII
command
Modbus-ASCII
Slave-compatible
device (e.g., tem-
perature control-
ler, indicator, or
power monitor)
Converting to
Host Link FINS
Any address
except Board/
Unit’s serial
port number.
User-speci-
fied
User-specified Transfers FINS
command inside
Host Link header
and terminator.
FINS com-
mand for Host
Link communi-
cations
OMRON PC (CS/
CJ/CP/NSJ
Series, or CVM1/
CV Series)

Omron CJ - REFERENCE MANUAL 07-2009 Specifications

General

Brand	Omron
Model	CJ - REFERENCE MANUAL 07-2009
Category	Computer Hardware
Language	English