Omron SYSMAC CJ1W-SCU21-V1, Operation Manual

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Conditions Requiring Routing Tables Section 6-7
With Routing Tables
Specify the addresses as shown in the following example.
Serial-to-Serial Conversion
Routing tables to enable the serial communications path to be treated as a
network are optional.
Without Routing Tables
Specify the addresses as shown in the following example.
With Routing Tables
Specify the addresses as shown in the following example.
Address Specification
Address
Remote network address
Remote node address
Remote unit address
Contents
(2) Local PLC internal communications
(3) Serial port unit address
Example
A
00 hex
Serial Communications Unit/Board
E.g., Unit number 0, port 1
Target: OMRON Component or Modbus Slave
(1) Network address:
To serial communications path network address A
Routing tables for treating serial communications path as a network
Unit number
80 hex (128 decimal)
Calculated from Unit No. 0, port 1
A
FINS network
PLC
CPU Unit
FINS
command
sent
(1) Serial communications
path network address
80 hex (128 decimal)
Calculated from Unit No. 0,
port 1
Node address:
Local PLC internal
communications
To 00 hex
Unit address:
To serial port unit
address
(e.g., 80 hex)
Serial communications path
(CompoWay/F, Modbus)
Network
address
Address Specification
Address Contents Example
Remote network address
Remote node address
Remote unit address
00 hex (See note.)
00 hex
Serial Communications Unit/Board
E.g., Unit number 0, port 1
Target: OMRON Component or Modbus Slave
CPU Unit
FINS
command
sent
Serial communications
path (Host Link FINS)
Address for standard
direct serial connection:
(1) Network address:
Direct serial connection
To 00 hex
(2) Node address: Local
PLC internal
communications
To 00 hex
Unit address: To serial
port unit address
(e.g., 80 hex)
Address for
standard
direct serial
connection
Serial port unit
address
Direct serial con-
nection (See
note.)
Local PLC in-
ternal commu-
nications
80 hex (128 decimal)
Calculated from unit
number 0, port 1
Note: Serial port unit
address (e.g., 80 hex)
can be set
No routing tables required to treat serial
communications path as a network
Serial communications path
(CompoWay/F, Modbus)
Address Contents Example
Unit number
80 hex (128 decimal)
Calculated from Unit No. 0, port 1
(1) Network address:
To serial communications path network address A
Target: OMRON Component or Modbus Slave
Serial Communications Unit/Board
E.g., Unit number 0, port 1
Remote network address
A
Remote node address
(2) Local PLC internal communications
00 hex
Remote unit address (3) Serial port unit address
Address Specification
A CPU Unit
PLC
FINS
command
sent
Serial communications
path (Host Link FINS)
Unit address: To serial
port unit address (e.g.,
80 hex)
(1) Serial communications
path network address
80 hex (128 decimal)
Calculated from unit
number 0, port 1
Routing tables for treating serial
communications path as a network
Network
address
Serial communications path
(CompoWay/F, Modbus)