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AC450 to AC800M

Hello, We alreadey have an 800xA system with a AC450 in a ethernet MB300 bus, but i want to upgrade the aplication of the AC450 to an AC800M, How Many ways i can do this? Which is the procedure? Can i do it automaticly whit a software or only have to do it manualy? I know that exisrt a way using access to build and aplication from an access file to AC800M and i know too that i can convert all the program in my AC450 to text, do you know one way to convert the TEXT to a AC800M access file?

Thanks