Chapter 5 Writing Data To The Cpu Module; Writing Data To The Programmable Controller; Online Change; Online Change (Ladder Block) - Mitsubishi Electric MELSEC iQ-R-R00CPU User Manual

5
WRITING DATA TO THE CPU MODULE
This chapter describes the functions relating to writing data to the CPU module.
5.1

Writing Data to the Programmable Controller

This function writes data specified by the project of the engineering tool to the memory of the CPU module. For details, refer
to the following.
 GX Works3 Operating Manual
5.2

Online Change

RnPCPU RnPCPU
RnCPU RnENCPU
(Process) (Redundant)
• When using the Process CPU (redundant mode), refer to the following as well.
Page 435 FUNCTIONS
• When using the SIL2 Process CPU, refer to the following as well.
Page 605 FUNCTIONS
• When using the Safety CPU, refer to the following as well.
Page 535 FUNCTIONS
The following table lists the types of the online change.
Type
Online change

Online change (ladder block)

Online change (SFC block)
File batch online change
Online change (ladder block)
This function writes the part of a program edited on the ladder editor using the engineering tool to the running CPU module in
units of ladder blocks. Edited contents spanning multiple files or multiple portions can be written to the CPU module at once.
Program A
X0 X2
X10
Y30
X1
X11
X3 X5
X13
SET M0
X4
X14
END
(1)
(1) Portion edited in the engineering tool
(2) The changed ladder block is written to the running CPU module.
(3) The program contents in the program cache memory are changed.
(4) After changing the program contents in the program cache memory, they are automatically transferred to the program memory.
For details on the operating procedure of the online change (ladder block) on engineering tools, refer to the
following.
 GX Works3 Operating Manual
RnPSFCPU RnPSFCPU RnSFCPU RnSFCPU
(Standard) (Safety) (Standard) (Safety)
Description
Changes and writes a part of the program and data online.
Changes, adds, or deletes SFC blocks online.
Writes data in file units online.
Program B
X12
Y50
X15
SET M10
END
Engineering tool
Reference
• Page 115 Online change (ladder block)
•  GX Works3 Operating Manual
•  GX Works3 Operating Manual
•  MELSEC iQ-R Programming Manual
(Program Design)
• Page 119 File batch online change
•  GX Works3 Operating Manual
CPU module
Inside the CPU module
Transfer
Program cache
memory
(3)
(2)
5 WRITING DATA TO THE CPU MODULE
5.1 Writing Data to the Programmable Controller
Program memory
(ROM)
(4)
115
5