SV: DOMAIN error

["Ulrika" <Ulrika.Ottosson@xxxxxxxxxx>]

Thank yuo kindly for all your assistance! I think I have found the
source of error. Just as you suggested, there was an equation where
TRNSYS tried to take the log of 0. The problem seems to fixed, and I'm
looking forward to a peaceful weekend =-)

/Ulrika

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Ulrika Ottosson                                          e-mail:
ulrika.ottosson@tfe.umu.se
Tekniska högskolan, Umeå universitet           
(Umeå Institute of Technology)              tel:    +46 (0)90 786 67
20                    
S-90187 Umeå
Sweden                                                        fax:   
+46 (0)90 786 97 96

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-----Ursprungligt meddelande-----
Från: owner-trnsys@relay.doit.wisc.edu
[mailto:owner-trnsys@relay.doit.wisc.edu] För David Bradley
Skickat: Friday, September 26, 2003 4:49 PM
Till: trnsys@relay.doit.wisc.edu
Ämne: Re: DOMAIN error


Ulrika,
   I believe that you can also get this error if TRNSYS tries to take
the 
log of a negative number, not just from an NaN. The solution is the same

unfortunately, if you have a Fortran compiler, you can step through and 
have it indicate where the problem is occurring. If not, you should 
probably contact your distributor directly for help tracking it. Kind
regards,
   David

At 01:24 PM 9/26/2003 +0200, you wrote:
>Dear everybody!
>
>Can someone help me trouble shoot? I'm trying to simulate a small 
>district heating system, with the simulation running for a year. The 
>site is Umeå. Everything works fine until end of May, when the heating 
>need gets low. I then receive the message that there is a floating 
>point error, the simulation is terminated and I get the following 
>message;
>
>Run-time error M6201: MATH -log: DOMAIN error
>
>Followed by a list of Images (TRNLIB.DLL, Trnsys.exe, kernel32.dll), 
>with various PC-numbers, routine, line and source unknown.
>
>None of this makes much sence to me. I would really appreciate some 
>ideas on how to find the problem and fix it!
>
>Kind regards,
>
>Ulrika Ottosson
>
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>
>Ulrika Ottosson                             e-mail:
>ulrika.ottosson@tfe.umu.se
>Tekniska högskolan, Umeå universitet
>(Umeå Institute of Technology)              tel:    +46 (0)90 786 67
>20
>S-90187 Umeå
>Sweden                                      fax:    +46 (0)90 786 97 96
>
>@ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @

>@ @ @

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