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4 FUNCTIONS
PC CPU
FROM
PC CPU
TO
[Remote input]
The remote I/O station's input status is automatically (for each link scan) stored in
3
the master station's "remote input (RX)" in the buffer memory.
The input status stored in the "remote input (RX)" in the buffer memory is received
4
to the PC CPU with the FROM instruction.
Master station
Remote input (RX)
RX0F
to
RX00
RX1F
to
RX10
RX2F
to
RX20
RX3F
to
RX30
RX4F
to
RX40
to
RX7FF
to
RX7F0
[Remote output]
With the TO instruction, the on/off data output from the remote I/O station is written
5
to the "remote output (RY)" in the buffer memory.
The output status stored in the "remote output (RY)" in the buffer memory is
6
automatically output (for each link scan) from the remote I/O station.
Master station
Remote output (RY)
RY0F
to
RY00
RY1F
to
RY10
RY2F
to
RY20
RY3F
to
RY30
RY4F
to
RY40
RY5F
to
RY50
RY6F
to
RY60
RY7F
to
RY70
RY8F
to
RY80
to
RY7FF
to
RY7F0
Remote I/O station
(station No. 1: occupies 1 station)
X0F
to
X00
16 points module
Remote I/O station
(station No. 3: occupies 1 station)
Y0F
to
Y00
16 points module
4 - 3
MELSEC-A
Remote I/O station
(station No. 2: occupies 1 station)
X0F
to
X00
X1F
to
X10
32 points module
Remote I/O station
(station No. 4: occupies 1 station)
Y0F
to
Y00
Y1F
to
Y10
32 points module
- Quick Links:
- Communication Overview
- Buffer Memory List
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Troubleshooting
