Omron SYSMAC CJ1W-EIP21 Manuel d'utilisateur Page 34

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8
Communications Services Overview Section 1-4
FINS
Communications
Service
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.
Various control operations (such as the reading and writing of I/O memory
between PLCs, mode changes, and file memory operations) can be executed
from the host computer by sending the corresponding FINS command with a
UDP/IP or TCP/IP header attached.
For example, it is possible to connect online via Ethernet from FINS communi-
cations applications such as the CX-Programmer, and to perform remote pro-
gramming and monitoring. (See note.)
Note Use CX-Programmer version 4.0 to use TCP/IP. For lower versions of CX-Pro-
grammer, FinsGateway Version 2003 or higher is required to use TCP/IP.
EtherNet/IP
Ethernet
(EtherNet/IP), etc.
EtherNet/IP Unit
EtherNet/IP Unit
CS/CJ-series CPU Unit
Ethernet (EtherNet/IP)
EtherNet/IP Unit
Ethernet Unit
EtherNet/IP Uni
User program
IP
UDP or TCP
FINS IP FINS
CS/CJ-series CPU
Unit
UDP or TCP
SEND(090),
RECV(098), or
CMND(490)
instruction
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