Clearing File Registers; Refresh Data Register (Rd); Refresh Memory Setting - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

Clearing file registers

To clear the file registers, use the following methods ( Page 101 Memory Operation)
• Clearing in the program: write 0 into the file register range to be cleared.
• Clearing with engineering tool: clear them using engineering tool ( GX Works3 Operating Manual)
21.10

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 98 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
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)
21.10 Refresh Data Register (RD)
21
Default
1024K Point
512K Point
512K Point
21 DEVICES
359