Sickbeard issues



Hello everyone,
I am trying to get some advice in regards to setting up Plex so that it may receive automatic notifications from SickBeard on my thecus N4810 OS7.
Plex Server runs fine, plex on my mobile phone runs great.
However I am not sure whether I am mixing up something when it comes to SickBeard-Plex notification service
::I have a Plex Media Server IP:Port on port 3200 with the IP address being that of my NAS
::What is the Plex Media Center IP and where do I find the port. It says eg port 3000 so I have port forwarded that at the same IP address of my NAS - This is the main question.
Any ideas?

Kind Regards