Mitsubishi Fx3u-40m memory Cassette

[KongFah 1]

I have a Fx3u-48 PLC with error.The program is locked with password.The PLC has memory cassette.i do not know has the memory cassette is locked with password or not.Can i buy a new same model PLC and insert this memory cassette to new PLC ,can this work?what i should do...

 

[Gambit 289]

That should work. But even though the program is  locked you should be able read the error code.
Maybe the error can be solved without having to change hardware. could be a calculation error or something else

[KongFah 1]

Dear Gambit,

 You mean eventhough my error PLC is locked with password,i still can read the program,right ?how to read the program?Please advice.Thanks.

                

 

 

 

 

[Gambit 289]

No you cannot read the program, But you can read the error code (diagnostics)

[KongFah 1]

Dear Gambit,

How to do the diagnostics...please advice.thanks

[KongFah 1]

Dear Gambit, 

When i do the diagnostics ?during that is error occurr or when the plc in normal condition?how to do the diagnostics?

[Gambit 289]

1.create a project for an FX3U in GX Works 2.

2. Than setup your connection 

3. Diagnostics - PLC Diagnostics