How to use the telnet command line in Labview

[Dennis_Knutson]

Not sure if the functions in the Internet toolkit do any of that. Opened up the Telnet Open Connection and at first glance, all I see is a TCP Open Connection and what looks like an action engine to manage the reference and a couple of semaphores.

[RTSLVU]

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Dennis Knutson wrote:
Not sure if the functions in the Internet toolkit do any of that. Opened up the Telnet Open Connection and at first glance, all I see is a TCP Open Connection and what looks like an action engine to manage the reference and a couple of semaphores.

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One of the developers here has the internet toolkit and when I passed my telnet code off to him he asked why I did not use that.

For one, I do not have that toolkit (I have "Full" dev he has "Professional" dev)

He tried it and for some reason it would not work with our device.

[RTSLVU]

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RTSLVU wrote:

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Dennis Knutson wrote:
Not sure if the functions in the Internet toolkit do any of that. Opened up the Telnet Open Connection and at first glance, all I see is a TCP Open Connection and what looks like an action engine to manage the reference and a couple of semaphores.

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One of the developers here has the internet toolkit and when I passed my telnet code off to him he asked why I did not use that.

For one, I do not have that toolkit (I have "Full" dev he has "Professional" dev)

He tried it and for some reason it would not work with our device.

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I just asked him and the telnet VI's in the internet tool kit do not support character at a time mode, only line at a time mode.

Our device only operates in character at a time mode.

But then he went on to say he fixed NI's telnet VI's to support character at a time mode and is working on converting my stuff to use that.

The test group does not like having to setup MAX on every ATE station.

[carlos_camargo]

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@altenbach wrote:

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Dennis Knutson wrote:

I'm sure you could use the TCP/IP functions in the same manner except you would not need to do anything in MAX. After all, that is what the Telnet functions use when you dig down a bit.

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 If you use plain TCP/IP, you need to do the telnet negotiations yourself. 🙂

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Is built-in telnet negotiations one of the benefits of the VISA VIs?  Or, do the VISA VIs add a huge extra run-time for "merely" the benefit of transparently accessing different interfaces transparently?

Is that why RTSLVU wrote this?

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@RTSLVU wrote:

My first instinct was to use the TCP/IP functions but I abandoned them for the VISA route. I can't remember exactly why bit I think altenbach is eluding to what I was thinking at the time.

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