[TRNSYS-users] Matlab/Simulink coupled with TRNSYS - Can run simulation only once per Matlab start

[Radenkovic Nikola (TT/ESY1)]

Hello all,

I am using Trnsys module as a part of my Simulink model. It has all been working fine, apart from one thing - if I run simulation once (and it finishes, or I interrupt it), prior to running it again, I have to close and reopen Matlab, otherwise I get the following error message (exception):

Error in 'efhb1_radiators_mixed_unmixed/Gebäude/coupling/TRNSYS1' while executing M-File S-function 'trn_sfun', flag = 0 (initialize), at start of simulation. MATLAB error message:
Unknown Windows exception value=c000008c in MATLAB.

I stepped through the Fortran code, and located the exception in the RCHECK.FOR, when the following is executed (as KKOUT has silly value): 
C          DETERMINE OUTPUT VARIABLE TYPE 
            ATMP1 = OCHECK(KKOUT)
	 
Of course, on first run, it goes without error. 

Trnsys .OUT file reports no error.

Anyone having similar problems or ideas of what might be going wrong?

Thanks,
Nikola
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