Hitachi HIZAC instruction codes

Hello All, I am new here... glad to find this great site.
I am trying to convert a Hitachi HIZAC PLC to another type, does somebody knows where i can find any information about instruction for HIZAC PLC?
i need the instruction information to do the converting.

Thanks in advance.
ahuat

I can't give you much info, but what kind of CPU does your PLC have? It might be the same as an old hitachi I have....