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<p>Christoph,</p>
<p> Sorry for the delay in responding about this. I have not dug
into the problem yet but could you please tell me which version of
Trnsys you are using?</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 08/17/2020 03:45, Christoph Buettner
via TRNSYS-users wrote:<br>
</div>
<blockquote type="cite"
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<div class="WordSection1">
<p class="MsoNormal">Dear TRNSYS-users,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">accordingly to TRNSYS
Volume 6 TRNEdit, we can use the functions eqwarn, gtwarn,
gewarn and newarn to generate a notice, warning or error
(set as third argument), after first and second
expression/argument are compared. (The description in the
documentation is quite wrong, the error is generated if
function is TRUE)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m using this function
to stop early simulations and reduce processing time e.g.
after a temperature is too often too low.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I got some problems with
this.<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
lang="EN-US"><span style="mso-list:Ignore">1.<span
style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span
lang="EN-US">The functions generate an error, even if I set
the third argument to 0 or 1 for notice or warning.<o:p></o:p></span></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><!--[if !supportLists]--><span
lang="EN-US"><span style="mso-list:Ignore">2.<span
style="font:7.0pt "Times New Roman""> </span></span></span><!--[endif]--><span
lang="EN-US">The function compares all iteration of a
timestep. This means, even if the comparison of two values
at the END of a timestep is FALSE, it generate the error.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regarding Point 1: <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The SourceFile Eval.f90
has a part for Fatal and Warning: I think a change of the
second FATAL to WARNING should work, but where is the notice
Part?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Case (33) !eqwarn<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> If (stack(top) ==
stack(top+1)) Then<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> stack(top) = 1.d0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> If
(stack(top+2) > 1.5) Then<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Call
Messages(617,atemp,'FATAL',-1,-1) !Generate an error message<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
eval = -99999.d0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
Return<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
ElseIf (stack(top+2) > 0.5) Then<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Call
Messages(617,atemp,'FATAL',-1,-1) !Generate an error message<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
eval = -99999.d0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">
Return<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> EndIf<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> Else<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> stack(top) = 0.d0<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> EndIf<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Regarding Point 2: <o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">How can the calculation
of an Equation be done only at the end of a timestep (like a
Printer)?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Right now I’m using the
saved values of last timestep, but maybe it’s possible to
set the calculation of these warn-function to “After
Convergence”? Every Type has this “If(getIsEndOfTimestep())
Then”-Part.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’m grateful for any
ideas.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Chris<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas;color:#17365D;mso-fareast-language:DE">________________________________________________________________</span><span
style="color:#17365D;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"
style="margin-left:35.4pt;text-autospace:none"><span
style="color:#17365D;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="color:#17365D;mso-fareast-language:DE">M.Sc.
Christoph Büttner<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="color:#17365D;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="color:#17365D;mso-fareast-language:DE">Abteilung
Solare Systeme<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><i><span
style="color:#17365D;mso-fareast-language:DE">Solar
systems department<o:p></o:p></span></i></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="color:#17365D;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="color:#17365D;mso-fareast-language:DE">Arbeitsgruppe Thermische
Energiesysteme<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><i><span
style="color:#17365D;mso-fareast-language:DE">Workgroup
Thermal Energy Systems<o:p></o:p></span></i></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE">Institut
für Solarenergieforschung GmbH <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE">Am
Ohrberg 1 <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE">D-31860
Emmerthal <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE">Phone:
+49 (0) 5151 999 647<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE"
lang="EN-US">Fax: +49 (0) 5151 999 400 <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE"
lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE"
lang="EN-US">eMail: </span><u><span
style="font-size:10.0pt;color:blue;mso-fareast-language:DE"
lang="EN-US"><a href="mailto:ch.buettner@isfh.de"
moz-do-not-send="true"><span style="color:#0563C1">ch.buettner@isfh.de</span></a></span></u><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE"
lang="EN-US"> <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE">Internet:
<a href="http://www.isfh.de/" moz-do-not-send="true"><span
style="color:#0563C1">www.isfh.de</span></a> <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE">Handelsregister:
Amtsgericht Hannover HRB 100547 <o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE">Geschäftsführer:
Prof. Dr. Rolf Brendel <o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;color:#17365D;mso-fareast-language:DE">Vorsitzender
des Aufsichtsrats: Ministerialrat Dr. Sebastian Huster</span><i><span
style="color:#0033CC;mso-fareast-language:DE"><o:p></o:p></span></i></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:Consolas;color:#17365D;mso-fareast-language:DE">________________________________________________________________</span><span
style="color:#17365D;mso-fareast-language:DE"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<br>
<small>¥2019 ISFH [1546297200]</small>
<br>
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<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
3 North Pinckney Street - suite 202
Madison, WI 53703 USA
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<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
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