Mitsubishi FXOS-30MR PLC

[ranfi]

I'm using a Mitsubishi FXOS-30MR-ES/UL PLC and when uploading the program it creates files with the following extensions HDR, NAM, PRG, PRM.
I need to know which of these files contains the ladder program or what is the meaning of these extensions.The software i'm using is Melsec Medoc vrsion 1.51

 

[xyzz]

Tht mentioned files are:
.PRG- Ladder program.
.NAM- Devices names.
.PRM- PLC parameters.
.HDR- The project printout header.

If you save the data registers contents (Edit-Other-DWR-Save), one more file will appear- .DWR
The project header and devices names are not stored in PLC, and therefore cannot be uploaded from there.
All the files have the same, similar to the project name.
The files have not to be read-only (some operation systems mark files as read-only when copying from a floppy).
They cannot be renamed in operation system environment.