Using A Plc As The Target - Omron CJ - REFERENCE MANUAL 07-2009 Reference Manual

Serial Gateway Overview
Conditions Requiring Routing Tables According to Target
Target
PLC (CS/CJ/CP/NSJ Series, CVM1/
CV Series)
Any component OMRON Compo-
except PLC nent
Modbus-RTU
Slave (including
OMRON Inverter)
Modbus-ASCII
Slave
Specifying Address in FINS Command Source
Target
PLC (CS/CJ /CP/NSJ
Series, CVM1/CV Series)
Any compo- OMRON
nent except Component
PLC
Modbus-
RTU Slave
(including
OMRON
Inverter)
Modbus-
ASCII Slave
3-6-8

Using a PLC as the Target

Network-to-Serial Conversion
Protocol
conversion
Host Link
FINS
CompoWay/
F
Modbus-
RTU
Modbus-
ASCII
Protocol Routing
conversion tables for
treating
serial com-
munica-
tions path
as network
Host Link Created
FINS
Not created
CompoWay/ Created
F
Modbus- Not created
RTU
Modbus-
ASCII
Note To access from a CX-Programmer, Select Change PLC
Guide, and enter the actual Host Link unit number, The CX-Programmer will
automatically increment the value by one.
Routing tables are required to enable the serial communications path to be
treated as a network.
Case
Routing FINS network including
serial communications path (for
Serial Gateway)
Serial communications path con-
nection only
Routing FINS network including
serial communications path (for
Serial Gateway)
Serial communications path con-
nection only
Remote network
address
Network address
assigned to the
serial port accord-
ing to the routing
tables
Serial port unit
address
Network address
assigned to the
serial port accord-
ing to the routing
tables
Network address for
specifying the
actual remote PC
Example Routing tables
communications
path as network
Network-to- Required
serial con-
version
Serial-to- Optional
serial con-
version
Network-to- Optional
serial con-
version
Serial-to- Optional
serial con-
version
FINS header
Remote node Remote unit
address
Host Link unit num- Must be the actual
ber incremented by unit address of the
1 (1 to 32) destination unit.
(See note.)
00 hex (indicates Must be the unit
communications in address of the serial
local PC) port.
Node address for
specifying the
actual remote PC
-
Serial Gateway
Section 3-6
for treating
serial
address
79