I have a DC power supply, I want to read data and control it in mathematica. i have already make the connection in labview see the follow picture. and a few simple orders it can give a response. it's TCP/IP protocol. now how can i do it in mathematica? i know how to connect a RS232 device in mathematica 10, the DeviceOpen order is useful in RS232(COM). I see in other topics, they use JLink, i know nothing of it, it reports errors. see it below this is for another device, it works but when i change it for my device, and give a simple order, same as the labview,"*IDN?\n", no response, it's running for ever.

what's the problem? Is there any other way without JLink?