Mitsubishi Melsec-Q Series User Manual page 320

12.2.21 When unable to write a program
Refer to the following flowchart when a program cannot be written in the CPU
A program cannot be written
into the CPU module.
switch
Has the password
Is the memory program
Program memory
Perform the following.
Organize file.
Confirm memory space.
Confirm the writing destination
specification.
Format program memory.
Please consult your local nearest
Mitsubishi or representative,
explaining a detailed description of
the problem.
Note1
Basic
Note12.11
The Basic model QCPU and Universal model QCPU do not have the DIP switches.
In the flowchart, proceed to "OFF".
Basic
Note12.12
The Basic model QCPU does not support the memory card.
12 - 25
Is the DIP
ON
Note12.11
SW1
set to OFF?
OFF
YES
registered?
NO
Memory card
Note12.12
memory?
YES
Can a program
be written?
NO
YES
Can a program
be written?
NO
Figure 12.18 When a program cannot be written
Universal
Note12.11
Turn the DIP switch
SW1 (system protect) to OFF.
NO
Can a program
be written?
Cancel the password using the GX
Developer.
NO
Can a program
be written?
Perform the following.
Confirm whether the write-
protect switch is off or not.
Confirm if it is formatted.
Confirm the writing destination
specification.
Can a program
be written?
NO
module.Note1
YES
YES
YES
Completed