So, can I talk to the plc directly without having a server? My hardware consists of a wireless router, micro login 1200 plc, an android cell phone and a 1756-net-eni. Tesla scads server is asking for a port number. I am not sure wher to find it in my system. I can ping the plc IP address which response. The error I receive is( Can not connect). Any help would be greatly appreciated.