I agree with Tom that your request is as vague as all hell!
I also agree with Pierre that you should consider using a PC!
Do you have any understanding at all about how a computer can control any system?
As far as we know, you don't even know what a PC is for other than surfin' the net!
Do some research, figure out what a PLC is, what a PC is, and how you want to employ whichever one you choose. Then come back with some real questions that we can give real answers to!
If you do know what a PC and PLC are capable of, and you know how to make use of those capabilities, then please post some reasonable (more specific) questions. We will be glad to answer reasonable questions.