use scpi commands over a visa communication set up that has connected a vector network analyzer to matlab using the instrument control toolbox to send a trigger sweep function to the device in matlab

main.m
% Create an instrument object for the VNA
vna = visa('Your_VNA_Interface', 'Your_VNA_Address');

% Open the connection to the VNA
fopen(vna);

% Initialize the VNA using SCPI commands
fprintf(vna, 'INIT:CONT OFF');  % Disable continuous sweep
fprintf(vna, 'SENS:SWEep:MODE TRIGgered');  % Set the sweep mode to triggered
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main.m
fprintf(vna, 'TRIG:SOUR EXT');  % Set the trigger source to external
fprintf(vna, 'TRIG:DELay 0.01');  % Set the trigger delay to 0.01 seconds
fprintf(vna, 'TRIG:MODE NORM');  % Set the trigger mode to normal
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main.m
fprintf(vna, 'TRIG:SING');  % Send a single trigger command
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main.m
fprintf(vna, 'FORM:DATA REAL,32');  % Set the data format to 32-bit floating-point real
fprintf(vna, 'CALC1:DATA:SNP? 1');  % Retrieve the S-parameter data in the first measurement trace
data = fread(vna, vna.BytesAvailable, 'float32');  % Read the binary data from the VNA
% Process and analyze the acquired data as per your requirements
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main.m
fclose(vna);  % Close the VNA connection
delete(vna);  % Delete the instrument object
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