5 WRITING DATA TO THE CPU MODULE
5.1 Writing Data to the Programmable Controller
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5
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
The following table lists the types of the 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.
For details on the operating procedure of the online change (ladder block) on engineering tools, refer to the
following.
GX Works3 Operating Manual
• 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
Type Description Reference
Online change Online change (ladder block) Changes and writes a part of the program and data online. • Page 115 Online change (ladder block)
• GX Works3 Operating Manual
Online change (SFC block) Changes, adds, or deletes SFC blocks online. • GX Works3 Operating Manual
• MELSEC iQ-R Programming Manual
(Program Design)
File batch online change Writes data in file units online. • Page 119 File batch online change
• GX Works3 Operating Manual
(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.
RnCPU
RnENCPU
RnSFCPU RnSFCPU
RnPSFCPU RnPSFCPU
RnPCPURnPCPU
(Standard) (Safety)(Standard) (Safety)
(Redundant)
(Process)
X0
X1
X3
X4
X2
X10
X11
X13
X14
X12
X15
X5
Y30
SET M0
END
Y50
SET M10
END
(1)
(2)
(3) (4)
Program A
Program B
Engineering tool
CPU module
Inside the CPU module
Transfer
Program cache
memory
Program memory
(ROM)
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