Re: [TRNSYS-users] random error when using Type155

i think i found the problem, even though i do not understand it properly. I had these lines in the program:

fid=fopen('outputfile.txt','a');

fprintf(fid,'1) Beginning of time (t=%.1f);\n%f\n',trnTime);

fprintf(fid,'%.2f\n',trnInputs(2));

looping everytime. 'a' mode in fopen (creates or open a file and append to the already existing content). TRNSYS code was running for 1-2 times and then crashing in the middle of any additional simulation. Like it was kind of "overflow" in the output file, although it is not significantly big.

now i open the file only once in 'w+' mode in the section

if ((trnInfo(7)==0) && (trnTime-trnStartTime<1e-6) )

fid1=fopen('CheckFile.txt','w+');

end'

and then write on it an any trnsys call. the problems seems to be fixed ;-)

Thanks anyway

Federico

Date: Mon, 6 Jul 2015 10:07:03 -0500
From: d.bradley@tess-inc.com
To: trnsys-users@lists.onebuilding.org; thunderfactory@hotmail.it
Subject: Re: [TRNSYS-users] random error when using Type155

It sounds a little bit as though some other program is performing an action that causes the Windows "current directory" to change in the middle of your simulation. I have not heard anyone else reporting such behavior and I am afraid that I don't have any suggestions for how to work around it except to try and close down as many other programs as possible and perhaps even disconnect from the internet before running the simulation just to see if that solves the problem.
kind regards,
David

On 07/06/2015 02:17, -- Fed -- wrote:

Hi everyone,
i am using Type 155 to make a trnsys file interact with a matlab script, but i get a really weird and random error.

I make the trnsys file run and usually it works without problems. i make it run another couple of times and still works, but at some point, after 2/3 runs the file crashes immediately and returns the error "Error(s) in calling the M-File" with no other info.

I need to close and restart trnsys to make it work again. Has anyone experienced the problem and knows how to solve it?

thank you in advance!
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-- 
***************************
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
d.bradley@tess-inc.com

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