Re: [EnergyPlus_Support] Changing the batch file "RunEPlus.bat"

[Linda Lawrie <linda@xxxxxxxxxx>]

At 04:59 AM 11/5/2002, Monjur M Mourshed wrote:
> Thanks for your opinions. I would
> like to keep my installation
> independent of EnergyPlus installed directory (instead of copying
> MyInterface.exe to E+ directory)  and I think I can't copy
> EnergyPlus
> files into my installation and distribute it.

Not unless you buy a distribution license.


> Can EnergyPlus
> developing group provide us with little more details
> about how EnergyPlus.exe deals with parameters provided in the 
> batch
> file? Some explanations might be:
>
> 1. EnergyPlus.exe considers that Energy+.idd should always be
> installed
> in the same location as EnergyPlus.exe. It is not possible to
> explicitly
> tell EnergyPlus.exe that the file is located elsewhere. Am I right?

False.  EnergyPlus reads the "Energy+.ini" file in the
"local" directory.  In a batch environment, it is easy to
determine the local directory.  In a Windows environment (i.e.
spawning an executable from the windows interface), it is less
so.

This Energy+.ini has several important lines:

[program]
dir=E:\EPlusCur\                                                                                                                                                                                                                                                              

being the most crucial.  This section "[program]" and line
"dir=" is what EnergyPlus reads to figure out where the
Energy+.idd file is installed.

of further importance to run the TRNSYS PV option is:
[trnsys]
dir=E:\EPlusCur\trnsyspv\

but that can be ignored until you get the program running
properly.

Once it can find the Energy+.idd, it will look (and write) everything
else to the "local" directory.  (i.e. it expects an in.idf
file, and will write eplusout.err, eplusout.eso, etc to that
space.)

The features of the Energy+.ini file are given in several places in the
documentation: Getting Started (Running EnergyPlus heading), Guide to
Interface Developers (Running EnergyPlus heading), InputOutput
Reference.  Perhaps they are not described adequately?  I will
try to beef up the explanation in the Interface Developers guide to cover
this kind of situation (where EnergyPlus may not be in the same directory
as the "local" directory).



> What other things like
> "this" EnergyPlus.exe Assumes? If so, where can I
> find it?

I would look in those areas in the above referenced documents and see if they answer your questions.  Also the "OutputDetailsAndExamples" document covers the contents of the output files.

Linda

EnergyPlus WebSite: http://www.energyplus.gov
Owner: EnergyPlus_Support list
Member: EnergyPlus Development Team


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