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ArbExpress is working fine over the LAN by itself. I get this error message when I try to connect using Matlab:
>> [SessionID, StatusMsg] = NewSession ('TCPIP::10.79.6.8::INSTR','LAN')
??? Undefined function or method 'matarb' for input arguments of type 'char'.
Error in ==> C:\Program Files
(x86)\Tektronix\ArbExpress\Tools\Matlab\NewSession.p>NewSession at 3
I have ArbExpress\Tools\Matlab in the path.
matarb.dll is a dll file and I don't see any other matarb files.
NewSession is a p file (encrypted) so I don't know what line 3 is.
http://www.mathworks.de/matlabcentral/n ... ead/166200
It can be a problem: http://www.dnjonline.com/article.aspx?i ... access3264
why not just make a VISA object and talk directly to the instrument? http://www.tek.com/forum/viewtopic.php?f=6&t=1784
also note ArbExpress' Download Agreement: http://www.tek.com/Measurement/Support/ ... ement.html
The problem so far is with the matarb.dll file. The other one may also be a problem but I haven't gotten that far.
I may just swithc to a 32-bit machine and see how that works.
I may try one of your other suggestions too.
I'm using Windows 8, 64 bits, Matlab 2013a. With the software included in the CDrom (that is, ArbExpress and TekVisa), I couldn't generate any waveform (even a simple sine) and the USB driver did not work either. I downloaded the latest version of both programs (ArbExpress 2.9 2013.04.16, TekVisa v22.214.171.124), and everything works fine.
However, I still have this message from Matlab that does not allow me to launch the sample code.
The first message is "just" a warning, but the undefined function error is critical.Warning: The P-code file NewSession.p was generated prior to MATLAB version 7.5 (R2007b) and
will not be supported in a future release. Use pcode to regenerate NewSession.p using MATLAB
R2007b or later.
> In sample at 15
Undefined function 'matarb' for input arguments of type 'char'.
Error in C:\Program Files (x86)\Tektronix\ArbExpress\Tools\Matlab\NewSession.p>NewSession
Error in sample (line 15)
Has anybody gone through the same problem?
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