Chapter 14 Writing Data To The Cpu Module; Writing Data To The Programmable Controller; Online Change; Online Change (Ladder Block) - Mitsubishi Electric MELSEC iQ-R Series User Manual

14
WRITING DATA TO THE CPU MODULE
This chapter describes the functions relating to writing data to the CPU module.
14.1

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
14.2

Online Change

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
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 189 Online change (ladder block)
•  GX Works3 Operating Manual
•  GX Works3 Operating Manual
•  MELSEC iQ-R Programming Manual (Program Design)
• Page 193 File batch online change
•  GX Works3 Operating Manual
CPU module
Inside the CPU module
Transfer
Program cache
memory
(3)
(2)
14 WRITING DATA TO THE CPU MODULE
14.1 Writing Data to the Programmable Controller
Program memory
(ROM)
(4)
189
14