MATLAB: Am I getting error running the sensorless_MRAS.mdl model from FileExchange in the Simulink R2011b environment

sfun_spssw_contcsimpowerSimscape Electrical

I downloaded an example model from FileExchange: <https://www.mathworks.com/matlabcentral/fileexchange/27970-sensorless-model-of-permanent-magnet-synchronous-motor>. 
I tried to simulate this model in MATLAB/Simulink R2011b. 
However, I got the following error: 
"For S-function 'sfun_spssw_contc', the number of defined parameters, 10, does not match the number of parameters on the dialog of 'sensorless_MRAS/powergui/EquivalentModel1/State-Space', 9. These two values must be identical."
How do I fix this?

Best Answer

The example file was found to be in version '1.209' (Simulink 6.3 or R14SP3).
Changes could have happened between R14SP3 and R2011b so the 'sfun_spssw_contc' S-function takes 1 more parameter now.
Now, the 'sfun_spssw_contc' S-function takes 10 parameters, as indicated below:
 
*   Index  Symbolic Name        Description
*   ------ -------------------- ---------------------------------------------------
*   0      A_PARAM              A,B,C,D: Continuous state space matrices of
*   1      B_PARAM              electrical system (all switches open).
*   2      C_PARAM
*   3      D_PARAM
*   4      XO_PARAM             Vector (1,NSTATES) of initial values of states.
*   5      EnableUseOfTLC_PARAM Enable the use of the TLC with the accelarator.
*
*   The following parameters are omitted when switch count is 0.
*
*   6      RS_PARAM         Vector (1,NSWITCH) of switch resistances
*                           in the closed state
*   7      SWT_PARAM        Vector (1,NSWITCH) of switch types :
*                             1 : Ideal switch
*                             2 : Circuit breaker (closes on demand;
*                                 opens at zero crossing current)
*                             3 : Diode ; closes if V>0 Opens if I<0
*                             4 : Thyristor
*                             5 : GTO
*                             6 : IBGT
*                             7 : IBGT/diode pair or MOSFET with internal diode
*
*   8      GIV_PARAM        Vector (1,NSWITCH) of switches gates initial values
*                           (0.0 or 1.0)
*
*   9      YISW_PARAM       Vector (1,NSWITCH) of switch current
*                           measure indexes (Indexes in output vector).
*                           The output current of the corresponding
*                           switches will forced to '0' when the switches
*                           are open. A zero index means a zero current
*                           is not imposed on that particular switch
*                           when open.
The example model is missing parameter 5 (EnableUseOfTLC_PARAM). Please add this parameter (0 or 1) after 'x0' in the dialog box of the S-function block to resolve the issue.
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