Hi Keiran Fung,
It appears to me that you are having hard time in resolving the error: "Error Generated by Remote Interface". Based on the script you provided, here are a few things you might consider revising to troubleshoot the issue:
- Frequency Command Format: The frequency command should specify the frequency in a format that the instrument expects. It's common for instruments to require frequency values to be in floating-point format, and sometimes the units (e.g., Hz, kHz, MHz) need to be explicitly stated.
- Frequency Range: The "linspace" function in your script includes 0 Hz as the starting frequency, which might not be a valid frequency for the generator to output. Devices typically have a minimum frequency limit above 0 Hz.
- Error Checking: After each command, it is a good practice to check for errors reported by the instrument. This can be done by querying the instrument's error queue.
Here is a revised version of your code with these points addressed:
%% KEYSIGHT 33600A Series - Waveform Generator
close all;
clear all;
clc;
%% Configuring PC with Function Generator Driver via USB
resourceList = visadevlist;
visaUSB = visadev("USB0::0x0957::0x5707::MY53805141::0::INSTR"); % Creates connection to a device through VISA resource name
instrhwinfo('ivi');
%% Instrument Connection
% Find a VISA-USB object.
obj1 = instrfind('Type', 'visa-usb', 'RsrcName', 'USB0::0x0957::0x5707::MY53805141::0::INSTR', 'Tag', '');
% Create the VISA-USB object if it does not exist
% otherwise use the object that was found.
if isempty(obj1)
obj1 = visa('KEYSIGHT', 'USB0::0x0957::0x5707::MY53805141::0::INSTR');
else
fclose(obj1);
obj1 = obj1(1);
end
%% Instrument Connection, Configuration, and Control
% Communicating with instrument object, obj1.
fopen(obj1);
f_max = 10000; % [Hz]
inc = 101; % [Hz]
% Ensure the frequency sweep starts from a minimum frequency above 0 Hz.
f_min = 1; % Minimum frequency, set above 0 Hz
f_Sweep = linspace(f_min, f_max, inc);
for i = 1:length(f_Sweep)
fprintf(obj1, ':VOLTAGE 4.9'); % [Vpp]
% Use floating-point format and specify units (Hz)
fprintf(obj1, sprintf(':FREQUENCY %fHZ', f_Sweep(i)));
pause(1);
% Check for errors from the instrument
fprintf(obj1, 'SYST:ERR?');
errorStr = fscanf(obj1);
if ~contains(errorStr, '+0,"No error"')
disp(['Error for frequency ', num2str(f_Sweep(i)), ' Hz: ', errorStr]);
break; % Exit the loop if there is an error
end
end
% Disconnect from instrument object, obj1.
fclose(obj1);
I hope this helps!
Best Regards,
Abhishek Chakram
