[TRNSYS-users] Integrator negative vlaue

[Kersken, Matthias]

Hello Fara!

If You only want to integrate some results You can sum them up with excel.
If Your Time Step is different from 1 h You may have to divide the resulting sum with the number of Time Steps per hour.

With Regards,
	Matthias Kersken


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Dipl.-Ing. Matthias Kersken
Wissenschaftlicher Mitarbeiter / Abteilung Energiesysteme
Fraunhofer-Institut für Bauphysik 
Institutsteil Holzkirchen
Fraunhoferstraße 10
83626 Valley
eMail: Matthias.Kersken at ibp.fraunhofer.de
Telefon 08024 / 643-204
Telefax 08024 / 643-366
www.ibp.fraunhofer.de
Dipl.-Ing. Matthias Kersken
Research Associate / Department Energy Systems 
Fraunhofer Institute for Building Physics 
Branch Holzkirchen
Fraunhoferstraße 10
D-83626 Valley
eMail: Matthias.Kersken at ibp.fraunhofer.de
Phone +49 8024 / 643-204
Fax +49 8024 / 643-366
www.ibp.fraunhofer.de
 
 
 
 
 
 
 
 
 
 
 
 
 
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-----Ursprüngliche Nachricht-----
Von: Farah Gammoh [mailto:fgammoh at stud.fh-offenburg.de] 
Gesendet: Mittwoch, 23. September 2009 14:09
An: trnsys-users at cae.wisc.edu
Betreff: [TRNSYS-users] Integrator negative vlaue

Hello,
What happens when you feed in a negative value into an integrator? 
I would like to subtract something rather than add, but an itegrator doesnt seem to do that. Once i feed in a negative value, It doesnt integrate anymore, the value remains the same.

Or if that doesnt work, I would like to reset the itegrator under certain conditions. Meaning, when the integrator recieves a value of 0, it is reset to zero too. 
I tried doing that by subtracting the value of the integrator from itself, but as mentioned above, it doesnt seem to work.

Thanks,
Farah



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