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  1. Hello Mrplc's members I have a Korean version " goldsec Moj2" of Mitsubishi plc A0j2 I need to know the right software for it And how to get it I tried GX Developer but it didn't work because it have only A0J2h type And I tried melsec medoc (version 1.64) but it didn't have A series CPUs
  2. Software for A0J2

    hi  everyone  I have a old Mitsubishi CPU ( A0J2CPU). I want  make backup from this CPU.but I cann't Connecting with Gx developer v8.72 what is software for this CPU-series? Please help me . i need to this Software
  3. Any old timers out there that can dust off the memories and help me program an old A0J2 processor? I can access the processor through Virtual Box DOS and MELSEC MEDOC.  I can upload the program and data registers and print everything.  The problem is that I want to change the program and having issues with the software & PLC.  The PLC has a ROM in it (ROM not an EPROM or EEPROM).  I can remove the ROM and set the jumper to RAM instead of ROM.  When I try to download the program I get "Param different" and the download stops.  I can reinstall the ROM and the PLC reloads OK and runs the program.  Where can I view/download/change the "Parameters" that the message is referring?  Do I need to clear the PLC somehow and reload everything? Any help is greatly appreciated.  Thanks in advance.