Refresh Data Register (Rd); Refresh Memory Setting - Mitsubishi Electric MELSEC iQ-R Series User Manual

27.10

Refresh Data Register (RD)

This device is provided for using as a refreshing target of buffer memory on the various devices, such as an intelligent function
module. Refresh Data Register (RD) is assigned into the refresh memory area. ( Page 145 Refresh memory)
CPU module
Refresh memory
Refresh
data register
(RD)
Module
label-assigned
area

Refresh memory setting

[CPU Parameter]  [Memory/Device Setting]  [Refresh Memory Setting]
Window
Displayed items
Item
Total Points
Refresh Data Register (RD) area
Module Label Assignment Area
27 DEVICES
482
27.10 Refresh Data Register (RD)
Refresh
Description
Check the total number of points for the refresh data register and
the assigned area.
Set the number of points of refresh data register.
Set the number of points for the module label assigned area.
Intelligent function module
Buffer memory
Setting range

0 to 1024K points (in
one-point increments)
0 to 1024K points (in
one-point increments)
Default
1024K Point
512K Point
512K Point