Controlling TDS3014B with Labview 4.1

[Loth]

Hello,

I'm trying to control the Tektronix TDS3014B with Labview 4.1. I use the ethernet connection to communicate with the scope. I know that recents version of labview make this very easy with VXI-11 but i have to use labview 4.1.

I tried to communicate with TCP/IP by sending "IDN?\n" but the scope sent me the following error :

HTTP/1.1 505 HTTP version not supported. Expected HTTP/1.1, received :

Pragma: no-cache..

Connection: close

How can i do with labview 4.1 and Windows 98??

Ps: my VI is similar to the attached file exept for the command.

[Al.B]

Hi Loth,

This error usually occurs when something is not set up properly with the TCP/IP settings on either the computer or the scope.  Please verify that your settings match those in the document below (note that the network configuration may be a bit different in windows 98, but it should be similar):

Configuring a Tektronix Oscilloscope for Cross-over Ethernet

If you are still having problems, I have a few additional recommendations:

1. Try using the VISA VIs as shown in the article rather than direct TCP/IP calls.  The VISA driver is completely backwards compatible, and should work with LabVIEW 4.1.

2. Try to access the scope via a browser as shown in the article - Is this working?

Let me know how this turns out!

[Loth]

Thanks for your reply.

Yes i can access to the scope via a browser , no problem with that.

I tried to use VISA but in labview 4.1 i cant add a TCP/IP ressource as shown in the document because i dont have MAX...

Thanks again for you help.

[Dennis_Knutson]

Installing a newer version of NI-VISA (one with TCP/IP support) was the recomendation. Did you try that? There is nothing that says you have to stick with the version of NI-VISA that came with 4.1.

[Loth]

I installed NI Visa 3.0.1 and it works  , thanks you guys

[Dennis_Knutson]

I'm almost sorry it worked. If it hadn't, you could have used it as an excuse to upgrade. Really a shame being stuck on such an old OS and LabVIEW version.

[Loth]

Yes i know but i am working in a aviation company and some bench test are very old ( created in 1998 or something).