Hello Asmaa,
It seems the question is about finding a way to ensure that if there is a fault in the input signal, the output remains 1 throughout the sample time. Conversely, if there is no fault, the output should remain 0 throughout the sample time.
Here is an example on how this can be achieved:
- Add a 'Constant' block that stores a vector as the input signal.
- Use a 'Relational Operator' block to check if any input value crosses a certain threshold.
- Utilize a 'MATLAB Function' block to set the output signal to 1 if any fault occurs, and 0 otherwise. For more information on this block, refer to this documentation: https://www.mathworks.com/help/simulink/slref/matlabfunction.html .
function y = fcn(u)
y = 0;
for itr = 1:length(u)
if u(itr) == 1
y = 1;
end
end
end
Here is a screenshot of the example Simulink model:
