Omron SYSMAC CS1W-SCB41-V1 Operation Manual page 253

Protocol Conversion
Network-to-Serial-to-Network
FINS message
User-specified
FINS command
Serial Communications Unit/Board
CPU Unit
Protocol
conversion
Host Link header
Used as Host
Link Master
Sending FINS Messages or Sending/Receiving Data Using CMND(490), RECV(098),
SEND(090) in the CPU Unit's Ladder Program
CPU bus-to-Serial
Serial Communications Unit/Board
CPU Unit
FINS
mes-
sage
Protocol User-speci-
conversion
fied FINS
command
Host Link header
Used as Host
Link Master
CS/CJ-series or CVM1/CV-series PLC (Host Link Slave)
224
Note This configuration can be connected to other networks, as shown be-
low.
CX-Programmer, etc.
Network (Ethernet,
Controller LInk, DeviceNet)
RS-422A/485
User-specified
Terminator
FINS command
(Host Link)
CS/CJ-series
or CVM1/CV-
series PLC
(Host Link
Slave)
User-specified
Network (Ethernet,
FINS command
Controller LInk,
DeviceNet)
The Board/Unit converts the FINS messages to Host Link FINS in this opera-
tion.
Access from CPU Unit (on the Same PLC
CMND(490)
or
SEND(090)/
User-specified
Terminator RS-422A/485
FINS command
(Host Link)
Details
Personal computers (e.g., CX-Pro-
grammer) connected through the
network to the PLC master can
access a PLC on another network
via a PLC slave that is connected
serially to the PLC master via Host
Link.
)
Details
Slave PLCs connected serially to
the Serial Communications Board/
Unit using Host Link can be
accessed from the CPU Unit in the
same PLC.
Section 6-5
Routing tables to
treat serial
communications
path as network
Required
Routing tables to
treat serial
communications
path as network
Optional