[Fwd: Re: [TRNSYS-users] cycle in proforma]

Diego A. Arias daarias at wisc.edu
Wed Dec 7 08:27:12 PST 2005

Dear Laurent,

I am forwarding Michaël's anwer to this topic.
Best regards,


Diego, Laurent,

While you are right about possible problems if you size a Fortran 
variable according to a cycle, it is actually possible to have "cycled 
variables" disappear by setting the cycle number to zero in TRNSYS 16. 
The online plotter is an example: setting the nb of left axis variables 
to zero will remove any "left axis variable" input.
I don't think this used to work in TRNSYS 15, which is probably why it 
does not work for Laurent. I believe the maximum number in cycles has 
also been increased in 16.


Diego A. Arias wrote:

> Dear Laurent,
> I think that it is not possible to dynamically size a cycle from 
> zero.  You have to consider that the proforma sends the information to 
> the routine written in Fortran. If you specify n=0, Fortran won't 
> allow you to size an array to zero.
> I guess that you can create a different proforma and, therefore, 
> another type for the case where this parameter is not needed.
> I hope this helps.  Please let me know if you have other questions.
> Diego
> Laurent SERRES wrote:
>> Hi TRNSYS users
>> I'm creating a new type, and I have some problems.
>> In the proforma file I want to create a cycle associated with a 
>> parameter (n for example)
>> The problem occurs when n=0.
>> In this case in iisibat the input is asked one time (the same that if 
>> n=1)
>> So when I call the typeck subprogram the number of inputs required 
>> (considering n=0) is less than the number of inputs specified 
>> (considering n=1).
>> Is there sommebody who knows the solution?
>> Regards
>> Laurent
>> Laurent SERRES
>> IUT Génie Civil
>> 3, Rue du Clos Courtel
>> BP 90422
>> Tel: (33) 2 23 23 42 02
>> Fax: (33) 2 23 23 40 51
>> mèl: laurent.serres at univ-rennes1.fr 
>> <mailto:laurent.serres at univ-rennes1.fr>
>> web: http://perso.univ-rennes1.fr/laurent.serres
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