Hi All

I am working on a project where I have to design a front end(on C#) and have to display the data coming from PLC.

Can you all please let me know that

1. What name space I have to used.
2. What function I have to used for Serial communication.
3. What .dll file I have to add in my project.
4. Any more idea if you have then please let me know.


Waiting for your reply its urgent.