Flow Of I/O Data - Mitsubishi Electric MELSEC iQ-R Series User Manual

Flow of I/O data

The following figure shows the I/O communication between the RJ71DN91 (master node) and two slave nodes as an
example.
(5)
(4)
CPU module
X
Y
(1) Master node
(2) Slave node 1
(3) Slave node 2
(4) Network power supply equipment
(5) Terminating resistor
1 FUNCTIONS
18
1.1 Master Function (I/O Communication)
(1)
(1)
RJ71DN91
Master function
receive data area
0700H
07FFH
Master function
transmit data area
0900H
09FFH
(2)
(2)
Transmit data
Receive data
(5)
(3)
(3)
Transmit data
Receive data