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<p>Karol,</p>
<p> My apologies for forgetting to answer that part. TRNSYS waits
for Excel to complete before it goes on.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 03/07/2018 00:30, Karol Bandurski
wrote:<br>
</div>
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<p class="MsoNormal"><span style="color:#1F497D">David,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D">Thenks!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">So
onion exchange.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">The
question remains: does TRNSYS wait on Excel
calculation/interation or “tear out” data when they are
needed, even if iteration are still running?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">Regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US">Karol<o:p></o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D" lang="EN-US"><o:p> </o:p></span></p>
<div>
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<p class="MsoNormal"><b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:PL">From:</span></b><span
style="font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext;mso-fareast-language:PL">
David BRADLEY [<a class="moz-txt-link-freetext" href="mailto:d.bradley@tess-inc.com">mailto:d.bradley@tess-inc.com</a>] <br>
<b>Sent:</b> Monday, March 5, 2018 10:19 PM<br>
<b>To:</b> TRNSYS users mailing list at OneBuilding.org<br>
<b>Cc:</b> Karol Bandurski<br>
<b>Subject:</b> Re: [TRNSYS-users] Excel iteration vs
TRNSYS iteration<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p>Karol,<o:p></o:p></p>
<p> As far as I am aware TRNSYS has no knowledge of that is
going on in Excel. Trnsys calls Excel, waits for Excel to
return something and then proceeds on with calling the next
component. If the system of Trnsys components did not converge
then Trnsys iterates again and calls Excel again. I think that
means that it an onion type of coupling.<o:p></o:p></p>
<p>kind regards,<o:p></o:p></p>
<p> David<o:p></o:p></p>
<p><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">On 03/02/2018 07:42, Karol Bandurski via
TRNSYS-users wrote:<o:p></o:p></p>
</div>
<blockquote style="margin-top:5.0pt;margin-bottom:5.0pt">
<p class="MsoNormal"><span lang="EN-US">Dear All,</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">I am considering to
couple TRNSYS and Excel model. My excel model is based on
“circular reference” so to calculate excel make some
iteration.</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span
style="mso-list:Ignore">1)<span style="font:7.0pt
"Times New Roman""> </span></span><!--[endif]--><span
lang="EN-US">Does TRNSYS respect it? I mean: does TRNSYS
will wait with the next time step or iteration on excel
calculation or TRNSYS take what is in given moment written
in excel (even if iteration is running)?</span><o:p></o:p></p>
<p class="MsoListParagraph"
style="text-indent:-18.0pt;mso-list:l0 level1 lfo2"><!--[if !supportLists]--><span
style="mso-list:Ignore">2)<span style="font:7.0pt
"Times New Roman""> </span></span><!--[endif]--><span
lang="EN-US">Does TRNSYS – Excel coupling is onion or
ping-pong type? I mean: does TRNSYS – excel data exchange
is each iteration or each time step? </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US">Regards,<br>
Karol</span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:PL"
lang="EN-US">--------------------------------------------------------------------</span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:PL"
lang="EN-US">Karol BANDURSKI M. Sc.</span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:PL"
lang="EN-US">Faculty of Civil and Environemntal
Engeneering</span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:PL"
lang="EN-US">Division of Heating, Air Conditioning and Air
Protection</span><o:p></o:p></p>
<p class="MsoNormal"><span style="mso-fareast-language:PL"
lang="EN-US">Poznan University of Technology</span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"><a
href="https://www.researchgate.net/profile/Karol_Bandurski"
moz-do-not-send="true">https://www.researchgate.net/profile/Karol_Bandurski</a></span><o:p></o:p></p>
<p class="MsoNormal"><span
style="color:#1F497D;mso-fareast-language:PL"><a
href="http://www.put.poznan.pl/%7Ekarol.bandurski"
moz-do-not-send="true"><span lang="EN-US">www.put.poznan.pl/~karol.bandurski</span></a></span><o:p></o:p></p>
<p class="MsoNormal"><span lang="EN-US"> </span><o:p></o:p></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman","serif";mso-fareast-language:PL"><br>
<br>
<br>
<o:p></o:p></span></p>
<pre>_______________________________________________<o:p></o:p></pre>
<pre>TRNSYS-users mailing list<o:p></o:p></pre>
<pre><a href="mailto:TRNSYS-users@lists.onebuilding.org" moz-do-not-send="true">TRNSYS-users@lists.onebuilding.org</a><o:p></o:p></pre>
<pre><a href="http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org" moz-do-not-send="true">http://lists.onebuilding.org/listinfo.cgi/trnsys-users-onebuilding.org</a><o:p></o:p></pre>
</blockquote>
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style="font-size:12.0pt;font-family:"Times New
Roman","serif";mso-fareast-language:PL"><br>
<br>
<o:p></o:p></span></p>
<pre>-- <o:p></o:p></pre>
<pre>***************************<o:p></o:p></pre>
<pre>David BRADLEY<o:p></o:p></pre>
<pre>Principal<o:p></o:p></pre>
<pre>Thermal Energy Systems Specialists, LLC<o:p></o:p></pre>
<pre>22 North Carroll Street - suite 370<o:p></o:p></pre>
<pre>Madison, WI 53703 USA<o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre>P:+1.608.274.2577<o:p></o:p></pre>
<pre>F:+1.608.278.1475<o:p></o:p></pre>
<pre><a href="mailto:d.bradley@tess-inc.com" moz-do-not-send="true">d.bradley@tess-inc.com</a><o:p></o:p></pre>
<pre><o:p> </o:p></pre>
<pre><a href="http://www.tess-inc.com" moz-do-not-send="true">http://www.tess-inc.com</a><o:p></o:p></pre>
<pre><a href="http://www.trnsys.com" moz-do-not-send="true">http://www.trnsys.com</a><o:p></o:p></pre>
</div>
</blockquote>
<br>
<pre class="moz-signature" cols="72">--
***************************
David BRADLEY
Principal
Thermal Energy Systems Specialists, LLC
22 North Carroll Street - suite 370
Madison, WI 53703 USA
P:+1.608.274.2577
F:+1.608.278.1475
<a class="moz-txt-link-abbreviated" href="mailto:d.bradley@tess-inc.com">d.bradley@tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.tess-inc.com">http://www.tess-inc.com</a>
<a class="moz-txt-link-freetext" href="http://www.trnsys.com">http://www.trnsys.com</a></pre>
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