Mitsubishi Electric MELSEC iQ-R Series User Manual page 158

Readable and writable range
Data can be read or written from/to the CC-Link IE TSN Plus module on the base unit where the CPU module is mounted.
■Read
All link devices of the CC-Link IE TSN Plus module can be specified. ( Page 155 Specification method)
■Write
The range that satisfies all of the following conditions can be specified.
• Area where data is sent to other stations and outside the link refresh range ( Page 143 Communications using RX, RY,
RWr, and RWw)
• Within the range of the link device of the CC-Link IE TSN Plus module ( Page 155 Specification method)
Ex.
CPU module
Y
Link refresh
Link refresh
(1) Out of the link refresh range (Data can be written here.)
(2) Area where data is sent to other stations
(3) Area for receiving data from other stations
When writing data to the area in the link refresh range, directly access the link device and write the same data
in the device of the CPU module.
• Bad example (Directly accessing the link refresh target only)
Link refresh overwrites the value.
CPU module
• Good example (Directly accessing the link device as well as writing the same data to the device of the CPU
module)
The value written by the direct access is reflected.
CPU module
9 FUNCTIONS
156
9.2 Cyclic Transmission
CC-Link IE TSN
Plus module
RY
(1)
MOV K20 J1\W100
W100
MOV K20 J1\W100
MOV K20 W100
W100
(2)
(3)
W
Link refresh
300
W
Link refresh
20
CC-Link IE TSN Plus module
RWw
20 300 RWw100
CC-Link IE TSN Plus module
RWw
20
RWw100