Sorry for the late reply... I don't a chance to visit the forums as often as I would like.
You are on the right track. The last message you posted is very close. You simply need to open the session by logging in. I am sure I must have posted a code example somewhere in the forum with just a basic send & receive debug interface.
Let's focus on what you have. Add a VISA Read function after you write. At the beginning, just try sending a '\n' (carriage return) to see if it responds. It should respond the same way as if you had a Putty session and simply hit the return button on the keyboard. That should give you the prompts to login.
There are multiple approaches to coding the full solution. You could have an open VISA followed by a loop with the login portion of code which writes and reads to the already opened VISA session with the appropriate login & password info. Reading will capture what is going on. As a matter of fact, you could implement a small debug solution which consists of an open VISA session, followed by a While Loop with an Event Structure. Add a Write button (and Read?) and a Stop button. Add event cases for the Write and the Stop, also the Read in case you simply want to read the contents without having to send anything (although it is probably not necessary).
From the Stop event case, wire the Stop (TRUE) boolean to the stop of the While Loop.
Inside the Write event case, Use the Visa Write function and the Visa Read function to send the command. Make sure you append a '\n' at the end of your command, otherwise, it may not work. You can put a small wait time between the write and the Read function. Sending a command will usually always send something back, so you want to read it. Wire a string control the the Write function and a string indicator to the Read function.
The small code should allow you to debug the implementation for your application. Unfortunately, I do not have LabVIEW installed on my PC, so I could not create the small app for you. It should be straight forward.
