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mitsubishi fx password

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i have a mitsubishi fx 48 can anyone tell me how to erase the program ,i cant overwrite because the password is on and i cant access,i want to program with my own file so its ok if program is lost thanks

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how about removing the Ram backup battery?

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tried removig battery still does not drop program

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you may want to read some of the earlier topics on this forum that expain procedure to figure out password.

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Did you have the power off the PLC when you removed the battery? If you remove power and pull the battery and there is no ROM or EEPROM cartridge installed, the processor should go blank after about 10 minutes.

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