Omron SYSMAC CJ1W-EIP21 Manuale Utente Pagina 223

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197
SECTION 8
FINS Communications
This section provides information on communicating on EtherNet/IP Systems and interconnected networks using FINS
commands. The information provided in the section deals only with FINS communications in reference to EtherNet/IP
Units or built-in EtherNet/IP ports.
FINS commands issued from a PLC are sent via the SEND(090), RECV(098), and CMND(490) instructions programmed
into the user ladder-diagram program. Although an outline of these instructions is provided in this section, refer to the CS/
CJ-series Programmable Controllers Programming Manual (W340) for further details on programming these instructions.
8-1 Overview of FINS Communications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198
8-1-1 Communications On an Ethernet Network. . . . . . . . . . . . . . . . . . . . 198
8-1-2 Using the FINS/UDP and FINS/TCP Methods . . . . . . . . . . . . . . . . 199
8-1-3 FINS Communications Service Specifications. . . . . . . . . . . . . . . . . 199
8-2 FINS/UDP Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
8-2-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
8-3 FINS/TCP Method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
8-3-1 Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 202
8-4 Routing Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
8-4-1 Routing Table Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
8-4-2 Connecting and Using a Peripheral Device for the PLC . . . . . . . . . 208
8-4-3 Routing Table Setting Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . 209
8-5 Using FINS Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
8-5-1 CX-Programmer (CX-Server) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
8-5-2 FinsGateway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215
8-6 Communicating between OMRON PLCs. . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
8-6-1 Communications Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 220
8-6-2 PLC Communications Data Areas . . . . . . . . . . . . . . . . . . . . . . . . . . 221
8-6-3 Using SEND(090), RECV(098), and CMND(490) . . . . . . . . . . . . . 222
8-6-4 Writing Programs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 226
8-6-5 Program Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
8-7 Precautions on High Traffic in FINS Communications . . . . . . . . . . . . . . . . . 232
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