IAI America RCM-GW-DV - Manual (Page 7)

1
DeviceNet Gateway
1. Overview
1.1 DeviceNet Gateway Unit
The DeviceNet Gateway Unit (hereinafter referred to as “DeviceNet Gateway” or “Gateway Unit”) is used
to connect a DeviceNet communication protocol network on which a host programmable controller
(hereinafter “PLC”) operates, to a SIO communication sub-network (Modbus communication protocol)
linking ROBO Cylinder controllers.
The physical standard to which the SIO communication network conforms is RS-485, and the slave
addresses on this network are 1 through 16.
All data exchanged between the DeviceNet communication network and the Modbus SIO communication
network are tentatively saved in the internal memory of the Gateway Unit, and then transferred cyclically.
The PLC recognizes the Gateway Unit as a remote I/O device.
The Gateway Unit supports PCON-C/CG/SE, ACON-C/CG/SE, SCON-C and ERC2-NP/PN/SE
controllers.
“Gateway” is a term used in communication networks, referring to a device that converts data to/from
different media and protocols to enable communication between networks.
Caution
In this document, all references to “SIO communication” mean communication between the Gateway
Unit (this unit) and IAI’s controller.
Caution
This manual only describes the controls feasible using the Gateway Unit. In the event of any conflict
between this manual and the operation manual for the controller, the content of this manual will
prevail. Refer to the operation manual for each controller for any function, parameter setting, alarm
detail or any other information not described in this manual.