Basic Functions; Communication With Remote I/O Stations - Mitsubishi Electric Q81BD-J61BT11 User Manual

4 FUNCTIONS

4.2 Basic Functions

4.2.1 Communication with remote I/O stations

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This section explains the basic functions of the CC-Link Ver.2 board.
The following explains an overview of the communication between the master station
and a remote I/O station. In the communication with the remote I/O station, the on/off
information of the switches and indicator lamps are communicated via the remote input
RX and remote output RY.
Personal computer
Program
mdReceive Read
mdSend
Write
[Data link startup]
1) When the personal computer is powered on, the CC-Link system starts up in
accordance with the network parameters set by the CC-Link Ver.2 utility.
Master station
CC-Link Ver.2 board
1)
Network
parameters
3)
Remote input
RX
4)
Remote output
RY
MELSEC
Remote I/O station
2)
Link scan Input
5)
Link scan Output
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