niyaz432, no offense, but after reading your 4 posts until now, I can only recommend that you stay way from DCS systems.
If you are an end-customer, then get someone who knows about DCS to do the project for you.
If you are trying to sell a control system to a customer, then you are unqualified to do so by yourself. You could hire someone with the know-how to work for you or you company, maybe just for this one project.