Hi @Hashmith_Rajcoomar ,
I have seen a YouTube video and it worked there.
I knew that…we are learning from youtube… 
Which Automation Studio do you have?
Example:
Which Automation Runtime version have you configured in the project?
Example:
Which PVI version?
Example:
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This post will help you: Can’t connect to X20CP3584 - Ask Questions / B&R Software & Runtime - B&R Community
Ciao
Valerio