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<p>Habiba,</p>
<p>Trnsys has three levels of notifications. A "notice" is for
information only, a "warning" may be a potential problem, and a
"fatal" stops the simulation. In this case you're getting a
warning so you have to determine if it is something of concern or
not. Because the controller is not getting stuck at all there is
nothing that you need to do. If the warning were telling you that
the controller was stuck (i.e. it reached its max allowable number
of state changes in a given timestep) some significant percentage
of the simulation (5 or 10% of the time, for example) then you
might want to look at why it was happening. Perhaps the timestep
is too short or perhaps the equipment is oversized for the space
it serves. Again, in your case, there is no problem at all.</p>
<p>kind regards,</p>
<p> David</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 08/18/2021 02:48, Habiba Aly via
TRNSYS-users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAD7LcE+3AEMLkhNk=UmxWw8m5Fi9NWpSnD4m0hZSy7bNtrptbQ@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hello TRNSYS users,
<div><br>
</div>
<div>I am a beginner at TRNSYS. I am trying to run a simulation
of a packaged terminal air conditioner system in a residential
building. The problem is whenever I run the simulation I get
the message that time elapsed is 0. I also get a warning that
says "controller type 166 was stuck 0 percent of the time
during simulation". I don't understand what is happening and
how to fix this problem. Attached is my TRNSYS studio file</div>
<div><br>
</div>
<div>Thank you,</div>
<div><br>
</div>
<div>Habiba Aly </div>
<div>Research Assistant |Mechanical Engineering Department</div>
<div>The American University in Cairo</div>
</div>
<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
P:+1.608.274.2577
<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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