Omron SYSMAC CJ1W-SCU41-V1

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Protocol Conversion Section 6-5
Access from CPU Unit (on Network PLC)
Note This configuration can be connected to other networks, as shown be-
low
Note (1) The FINS header contains the following information.
• Remote destination network address (DNA)
• With routing tables that treat serial communications path as a network:
Network address corresponding to serial port in the routing tables.
Network-to-Serial Details Routing tables to
treat serial
communications
path as network
Slave PLCs connected serially to
the Serial Communications Board/
Unit using Host Link can be
accessed from a CPU Unit in a
PLC connected to the network.
Required
FINS message
Host Link header
Terminator
CS/CJ-series or CVM1/CV-series PLC (Host Link Slave)
Serial Communications Unit/Board
CPU Unit
CMND(490)
or
SEND(090)/RECV(098)
User-specified
FINS command
Protocol
conversion
User-specified
FINS command
Used as Host
Link Master
RS-422A/485
(Host Link)
Network (Ethernet,
Controller LInk, DeviceNet)
Network-to-Serial-to-Network Details Routing tables to
treat serial
communications
path as network
CPU Units in PLCs connected to
the network can access a PLC on
another network via a PLC slave
that is connected serially to the
Serial Communications Board/Unit
via Host Link.
Required
FINS message
Serial Communications Unit/Board
CPU Unit
Host Link header
Terminator
CMND(490)
or
SEND(090)/
RECV(098)
User-specified
FINS command
Network (Ethernet, Controller
LInk, DeviceNet)
Protocol
conversion
User-specified
FINS command
RS-422A/485
(Host Link)
Used as Host
Link Master
CS/CJ-series or
CVM1/CV-series PLC
(Host Link Slave)
User-specified
FINS command
Network (Ethernet,
Controller LInk, DeviceNet)