[Equest-users] setting daylight via global parameter

[Dana Etherington]

Beat me to it... here's an alternative.

If you set your global parameter to symbolic you can use this at the daylight dropdown:

#SI(#PA("GLOBAL PARAMETER NAME"),"SPACE","DAYLIGHTING")

Your parameter becomes "YES" or "NO".

-Dana

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From: equest-users-bounces at lists.onebuilding.org [mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Kevin Madison
Sent: Thursday, June 28, 2012 4:10 PM
To: equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] setting daylight via global parameter

...
then #si("YES","SPACE","DAYLIGHTING")
else #si("NO","SPACE","DAYLIGHTING")
endif

... anytime you are trying to set a keyword with a symbolic data type, you must use the SymbolIndex() or #si() function. Symbolic keywords are those that take text inputs, either as a user defined command such as a schedule (e.g. SPACE:LIGHTING-SCHEDUL) or a BDL pre-defined symbol (e.g. SPACE:DAYLIGHTING or SYSTEM:OA-CONTROL)

You also have to make sure you are using the proper DOE-2 symbol value, not the eQUEST detailed interface value. To identify the correct DOE-2 symbol value you can usually right click and look at the DOE-2 item help for that keyword and it will show you the valid inputs. Or, look at the .inp file and see what actually shows up for the input to a particular symbolic keyword.

Have fun.

- Kevin

Kevin Madison PE



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On 6/28/2012 12:52 PM, Dahlstrom, Aaron wrote:
I am attempting to turn on/off daylighting control in a large model via a user expression, referencing a global parameter.

I have read the "Topics" entry on syntax for expressions, but I'm still stuck. Here's my entry (in the "DAYLIGHTING" field)

if (#PA("InclDaylight")==1)
   then ("Yes")
   else ("No")
endif

I have tried a number of formulations; the error message I get each time is

[cid:image001.jpg at 01CD5548.D6266860]

Any advice?

Aaron Dahlstrom , PE, LEED® AP
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