S-function Error cuase?
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Hello every one I have a model in simulink :
S-Function :
if true
function [sys,x0,str,ts] = pt1sfun(t,x,u,flag,T)
A = [-1/T];
B = [ 1/T];
C = [ 1 ];
D = [ 0 ];
switch flag,
%%%%%%%%%%%%%%%%%%
% Initialization %
%%%%%%%%%%%%%%%%%%
case 0,
[sys,x0,str,ts]=mdlInitializeSizes(A,B,C,D);
%%%%%%%%%%%%%%%
% Derivatives %
%%%%%%%%%%%%%%%
case 1,
sys=mdlDerivatives(t,x,u,A,B,C,D);
%%%%%%%%%%%
% Outputs %
%%%%%%%%%%%
case 3,
sys=mdlOutputs(t,x,u,A,B,C,D);
% Nicht verwendete Flags
case {2, 4, 9},
sys=[];
%%%%%%%%%%%%%%%%%%%%
% Unexpected flags %
%%%%%%%%%%%%%%%%%%%%
otherwise % Fehlerbehandlung
error(['Unhandled flag = ',num2str(flag)]);
%end
% end pt1sfun
%
%=============================================================================
% mdlInitializeSizes
%=============================================================================
%
function [sys,x0,str,ts]=mdlInitializeSizes(A,B,C,D)
sizes = simsizes;
sizes.NumContStates = size(A,1);
sizes.NumDiscStates = 0;
sizes.NumOutputs = size(C,1);
sizes.NumInputs = size(B,1);
sizes.DirFeedthrough = 0;
sizes.NumSampleTimes = 1;
sys = simsizes(sizes);
% initialize the initial conditions
x0 = zeros(size(A,1),1); % Anfangszustand: x0 = 0
% str is always an empty matrix
str = [];
%
% initialize the array of sample times; in diesem Beispiel ist die
% Abtastzeit kontinuierlich, daher wird ts und der zugehoerige
% Offset zu Null gesetzt.
%
ts = [0 0];
% end mdlInitializeSizes
%
%=============================================================================
% mdlDerivatives
% Return the derivatives for the continuous states.
%=============================================================================
%
function sys=mdlDerivatives(t,x,u,A,B,C,D)
sys = A*x + B*u; % Berechnung von der Ableitungen xpunkt
% end mdlDerivatives
%%=============================================================================
% Return the block outputs.
%=============================================================================
%
function sys=mdlOutputs(t,x,u,A,B,C,D)
sys = C*x + D*u; % Berechnung des Ausgangsvektors y
% end mdlOutputs
end
I got this error after running;Why?
.. ..
Here T is fix(T = 0.01;)
Another question: If T be variable (0.1<T<10) from another part of simulink How can I define T in S-Function?
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