Omron CS1W-ETN21 operation manual Fins Communications

SECTION 6

FINS Communications

This section provides information on communicating on Ethernet Systems and interconnected networks using FINS commands. The information provided in the section deals only with FINS communications in reference to Ethernet Units.

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-seriesProgrammable Controllers Programming Manual (W340) for further details on programming these instructions.

6-1 Overview of FINS Communications			114
	6-1-1 Communications On an Ethernet Network		114
	6-1-2 Using the FINS/UDP and FINS/TCP Methods		114
	6-1-3 FINS Communications Service Specifications for Ethernet		115
6-2	FINS/UDP Method		116
	6-2-1	Overview	116
6-3	FINS/TCP Method		118
	6-3-1	Overview	118
6-4	Creating Routing Tables		122
	6-4-1	Routing Table Overview	122
	6-4-2 Connecting and Using a Peripheral Device for the PLC		123
	6-4-3 Routing Table Setting Examples		124
6-5	Using FINS Applications		126
	6-5-1	CX-Programmer (CX-Server)	126
	6-5-2	FinsGateway	130
6-6 Communicating between OMRON PLCs			135
	6-6-1	Communications Specifications	135
	6-6-2 PLC Communications Data Areas		136
	6-6-3 Using SEND(090), RECV(098), and CMND(490)		137
	6-6-4	Writing Programs	141
	6-6-5	Program Example	145
	6-6-6	Transmission Delays	147
6-7 Precautions on High Traffic in FINS Communications			153

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