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Modular Optical Switch | SwitchBlade
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7. Once commands have been executed in the
‘
Communicate ’ tab, clicking on the ‘ Session
Log ’ tab now shows MATLAB script code
that will perform all the commands that
were executed in the ‘
Communicate ’ tab.
8. By clicking ‘ Save Session… ’ you are able to
save the MATLAB .m file of these executed
commands.
Figure 40 - MATLAB VISA Session Log
11.9 MATLAB Example Code: Query the MTP1000
% Find a VISA-TCPIP object. This is if the VISA object has already be
% created with tmtool etc, or has been removed from the workspace without
% first being closed (cleanly disconnected)
MTP-1000 = instrfind( 'Type' , 'visa-tcpip' , ...
'RsrcName' , 'TCPIP0::192.168.1.4::inst0::INSTR' , 'Tag' , '' );
% Create the ‘agilent’ VISA-TCPIP object if it does not exist
% otherwise use the object that was found.
if isempty(MTP-1000)
MTP-1000 = visa( 'agilent' , 'TCPIP0::192.168.1.4::inst0::INSTR' );
else
fclose(MTP-1000);
MTP-1000 = MTP-1000 (1);
end
% Open the connection to the VISA object
fopen(MTP-1000);
% Query the MTP-1000.
response = query(MTP-1000, '*IDN?' );
disp( 'The *IDN query response:' );
disp(response);
response = query(MTP-1000, '*OPT?' );
disp( 'The *OPT query response:' );
disp(response);
% Close the connection to the object
fclose(MTP-1000);
% Clean up all objects.
delete(MTP-1000);
Notes : The IP address ( 192.168.1.4 ) used in the code is an example only. You will need to
substitute in the IP address of your MTP1000.