Omron CS1W-EIP21 Operation Manual page 30

EtherNet/IP Unit Overview
FINS Communications
Service
CS/CJ-series CPU Unit
CSND
CIP messages (CIP commands and responses) can also be transferred to
another CIP-based network via the EtherNet/IP Unit using the CIP routing
function for message communications.
In the CS/CJ Series, CIP routing is possible only through two EtherNet/IP
Units. In the NE1S Series, CIP routing is possible through a DeviceNet Unit or
ControlNet Unit as well as another EtherNet/IP Unit.
EtherNet/IP
CS/CJ-series CPU Unit
EtherNet/IP Unit
FINS commands can be sent to or received from other PLCs or computers on
the same Ethernet network by executing SEND(090), RECV(098), or
CMND(490) instructions in the ladder diagram program. This enables various
control operations such as the reading and writing of I/O memory between
PLCs, mode changes, and file memory operations.
Note There are no particular restrictions when sending FINS messages to OMRON
Ethernet Units (CS1W-ETN21 or CJ1W-ETN21) in an Ethernet network.
CS/CJ-series
CPU Unit
EtherNet/IP Unit
CIP command
Response
EtherNet/IP Unit
Ethernet
(EtherNet/IP), etc.
Ethernet (EtherNet/IP)
IP FINS IP FINS
UDP or TCP UDP or TCP
EtherNet/IP
Unit
User program
SEND(090),
RECV(098), or
CMND(490)
instruction
Section 1-1
Ethernet
(EtherNet/IP)
Ethernet EtherNet/IP
Unit Unit
7