IAI America RCM-GW-CC - Manual (Page 5)

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1. Outline
1.1 CC-Link gateway unit
CC-Link Gateway Unit (hereinafter, referred to as CC-Link gateway or gateway unit) is a unit to connect the
network of CC-Link communication protocol for an upper programmable controller (hereinafter, referred to as
PLC) and SIO communication network (Modbus communication protocol) for a controller (for robo-cylinder)
which is a sub-network.
Physical standard for SIO communication network is RS-485, and slave addresses on this network are 1-16.
All data exchanged between the CC-Link and the Modbus protocol communication network are once stored in
the internal memory of the gateway unit, and transmitted to CYCLIC. The gateway unit is handled from the
PLC side as a remote I/O.
Adaptable controllers are PCON-SE, ACON-SE, SCON and ERC2-SE.
* Gateway is communication terminology, and is equipment which mutually converts data of which media and
protocols are different on networks, and allows for communication.