Rule #1 - Be Patient - Rule #2 - Don't ask when, if you don't contribute - Rule #3 - You have coding skills - LinuxMCE's small brother is available: http://www.agocontrol.com
This is my reasoning behind the suggestion to look at OPC. it is an open connectivity protocol and most PLC's are OPC compliant (i am unaware of any that are not). Also most PLCs are similiar to program (ladder logic is pretty common) the Fatek are prob just some generic brand of one of the much larger companies like Siemens!