MATLAB - Binary Block File Transfer Via LAN as Socket at Port 5025

Note:  In the following example:

"%"  indicates a comment

% Instantiate connection to Keysight FieldFox via LAN as Socket at Port 5025

% Alter the TCPIP address to match your targeted FieldFox IP address.

    fieldFox = tcpip('156.140.155.106',5025);

%Set input and output buffer defualt sizes

    set(fieldFox, 'InputBufferSize', 8096);

    set(fieldFox, 'OutputBufferSize', 8069);

% Default binary data read is BigEndian resulting in corrupt data.

% Modify return of binary data from default BigEndian to LittleEndian

% via MathWorks SET command

    set(fieldFox,'ByteOrder', 'littleEndian')

% Open session to fieldFox at address / port as noted above.

    fopen(fieldFox);

% 'Hello World' equivalent, i.e. Identification Query String

    fprintf(fieldFox,'*IDN?\n');

    myId = fscanf(fieldFox,'%c')

% Clear the status registers and all potential error indications within the

% error queue prior to starting applications. Also, check the error queue via

% 'SYST:ERR?' error query and ensure the error indication is '0, "No Error".

    fprintf(fieldFox,'*CLS\n');

    fprintf(fieldFox,'SYST:ERR?\n');

    initErrCheck = fscanf(fieldFox,'%c')

% Set Instrument and various other important items

    % Instrument mode to Network Analyzer

    fprintf(fieldFox,'INST:SEL ''NA''')

    % Trigger mode to continuous off

    fprintf(fieldFox,'INIT:CONT 0\n')

    % Set start and stop frequencies. DUT is a wideband 177MHz bandpass filter (BPF).

    fprintf(fieldFox,'FREQ:STAR 60E6;STOP 300E6\n')

    % Set number of trace points

    fprintf(fieldFox,'SWE:POIN 101\n')

    % Trace 1 to measurement of S21 and select that measurement as active

    fprintf(fieldFox,'CALC:PAR1:DEF S21;SEL\n')

    % Hold off for operation complete to ensure settings

    fprintf(fieldFox,'*OPC?\n')

    done = fscanf(fieldFox,'%1d')

% Trigger single sweep with hold off via *OPC? Operation Complete Query.

% For long sweeps times there may be a TCPIP hold off or time out setting that

% must be increased.

    fprintf(fieldFox,'INIT;*OPC?\n')

    trigComplete = fscanf(fieldFox,'%1d')

%Query FORMATTED data from fieldFox

    % Set data format to real-32 bin block transfer

    fprintf(fieldFox, 'FORM:DATA REAL,32\n')

    fprintf(fieldFox,'CALC:DATA:FDATA?\n')

    myBinData = binblockread(fieldFox,'float')

    % There will be a line feed not read, i.e. hanging. Read it to clear buffer.

    % If you do not read the hanging line feed a -410, "Query Interrupted

    % Error" will occur

    hangLineFeed = fread(fieldFox,1)

%Query of x-axis stimulus

      % Set data format to real-64 bin block transfer. Real 64 bit to ensure

    % Hz resolution in GHz capable analyzers.

    fprintf(fieldFox, 'FORM:DATA REAL,64\n')

    fprintf(fieldFox,'SENS:FREQ:DATA?\n')

    myBinStimulusData = binblockread(fieldFox,'double')

    % There will be a line feed not read, i.e. hanging. Read it to clear buffer.

    hangLineFeed = fread(fieldFox,1)

    % Within the MatLab GUI display data and stimulus numbers and plot same

    display myBinData

    display myBinStimulusData

    % MatLab plot related commands and efforts:

    % Convert FieldFox returned frequency data to units of MHz

    myStimulusDataMHz = myBinStimulusData/1E6

   clear title xlabel ylabel

   plot(myStimulusDataMHz, myBinData)

   title('S21 :  177MHz Band Pass Filter')

   xlabel('Frequency (MHz)')

   ylabel ('Log Mag (dB)')

% Check Error Queue. A "*CLS" was asserted at the beginning of the

% application. This will clear the entire error queue. Upon completion of

% the application the error queue is queried a final time. If the

% application is written correctly and there are no hardware failures the

% final error query check via 'SYST:ERR?' should return '0, "No Error" else

% the application is in error.

    fprintf(fieldFox, 'SYST:ERR?')

    finalErrCheck = fscanf(fieldFox, '%c')

%Close session to instrument prior to completion

    fclose(fieldFox);