But you can have a schedule read an external file. Just load your external file so the future value you want to use is associated with the current time step.
Ned Lyon, P.E. (MA, WV)
Staff Consultant
SIMPSON GUMPERTZ & HEGER
781.907.9000 main
781.907.9350 direct
781.907.9009 fax
www.sgh.com
From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx]
On Behalf Of Liam O'Brien
Sent: Wednesday, June 05, 2013 3:07 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Subject: [EnergyPlus_Support] Re: Data arrays in EMS
Thanks, Brent. I was hoping for something slightly more flexible that could look into the future, for instance (e.g., I'd like to be able to access 48 hours of future weather data from the current time step). Any thoughts?
--- In EnergyPlus_Support@xxxxxxxxxxxxxxx, "Griffith, Brent" <brent.griffith@...> wrote:
>
> For past data, there are Trend variables that can hold an array of data for past zone timesteps -- see EnergyManagementSystem:TrendVariable.
>
> From: EnergyPlus_Support@xxxxxxxxxxxxxxx [mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Liam O'Brien
> Sent: Wednesday, June 05, 2013 12:47 PM
> To: EnergyPlus_Support@xxxxxxxxxxxxxxx
> Subject: [EnergyPlus_Support] Data arrays in EMS
>
>
>
> My grad students have run into independent situations where it would be incredibly useful to be able to store and access (on a time-step basis) numerical data in an array through EMS.
>
> Examples applications:
> - Generate a complex probability distribution of occupant behavior during the simulation
> - Store weather forecasts and use this data for predictive controls
>
> Using schedules won't suffice in this situation because we need to access future/past data; not just the present time step.
>
> Does anyone know of any way to accomplish this, or alternatively, of any plans to develop this capability in EMS in future E+ releases? Matrix arithmetic functionality would be a bonus, but one step at a time :)
>
> Best regards,
> Liam O'Brien
>
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