Controlling a SR830 Lock-in amplifier

Hi I would like to control my Stanford Research SR830 Lock-in Amplifier from Matlab. However I can only find the Labview drivers. I have GPIB connectors. How can I connect properly to the SR830?

Best Henrik

[Henrik]

Is there really no one who has any idea about this?

Answer 1

[Walter Roberson]

I do not find a specific driver for that, but in theory you should be able to use Instrument Control Toolbox for that

http://www.mathworks.com/products/instrument/hardware/scpi.html

[Henrik]

Thanks, I figured it out earlier.

I use the "tmtool" to connect to the gpib and then send commands to the lock-in by "fprintf".

This is great, cuz I can connect to all my Sourcemeters, Lockins and switchbox.

[Marian Baah]

i've been able to send commands to my lock-in and whatever information coming out is what i am expecting, my problem however is that anytime i run the programme i recieve this "Warning: GPIB : NI : An I/O operation has been canceled mostly likely due to a Timeout." I don't know how to rectify that problem Any ideas?

Answer 2

[Nikolai Khokhlov]

I've get the next code from Instrument Control Toolbox. It works as a start

%% Instrument Connection
% Find a GPIB object. 8 - is your GBIP adress, settied on lock-in
sr830 = instrfind('Type', 'gpib', 'BoardIndex', 0, 'PrimaryAddress', 8, 'Tag', '');
% Create the GPIB object if it does not exist
% otherwise use the object that was found.
if isempty(sr830)
    sr830 = gpib('NI', 0, 8);
else
    fclose(sr830);
    sr830 = sr830(1);
end
% Connect to instrument object, sr830.
fopen(sr830);
% Send command to get value of channel X
fprintf(sr830, 'OUTP? 1');
% read the output
x_value = fscanf(sr830)
% close the connection
fclose(sr830);
delete(sr830);