Functions; Master Function (I/O Communication Function) - Mitsubishi Electric QJ71DN91 User Manual

4 FUNCTIONS

4 FUNCTIONS
This chapter explains the functions of the QJ71DN91.

4.1 Master Function (I/O Communication Function)

nodes), using the buffer memory of the QJ71DN91.
outputs (up to 256 bytes per node) are available.
Programmable controller CPU
SET Y11
(1) Setting for I/O communication with each slave node
4 - 1
This function allows I/O data communication with respective slave nodes (up to 63
Communications of 512 bytes of inputs (up to 256 bytes per node) and 512 bytes of
Master node
QJ71DN91
I/O Communication
Request
0700
H
X
07FF
H
0900
H
Y
09FF
H
(a) Set the information such as connection types or I/O points in Parameters
for Master Function (address: 01D4
each slave node.
(b) Parameters for master function are set in GX Configurator-DN or sequence
programs. (Refer to Section 7.3.)
MasterFunction
Receive Data
area
Master Function
Transmit Data
area
to 03CF
H
MELSEC-Q
Slave node
Transmit
Receive
) to exchange I/O data with
H
4 - 1
4