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8 PROGRAMMING
MELSEC-QnA
8.3.3 Communication between the master station and local station
The basic procedure for creating a program to communicate with local station is shown
below.
Refer to Chapter 11 for a program example.
(1) Master station
.........Yn0
.........Yn0
.........Yn8
.........Yn6
.........YnA
For debugging only
For operation only
Parameter setting
Refresh instruction
Data link startup by the buffer-memory
parameters
Refresh instruction
.........Buffer memory address 0
H
to 5F
H
PROM Parameter registration to E
2
Data link startup by the E PROM
parameters
2
Read from remote input (RX)
Read from remote register (RWr)
Control by the read remote input (RX)
Control by read data from remote register
(RWr)
Create data to write to remote register
(RWw)
ON/OFF control of remote output (RY)
Write to remote register (RWw)
Write to remote output (RY)
.........Buffer memory address E0
H
to 15F
H
.........Buffer memory address 1E0
H to 2DF
H
.........Buffer memory address 160H
to 1DF
H
.........Buffer memory address 2E0H to 3DFH