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Possible bug in TimeStep in Openstudio 2.9.0

asked 2021-08-13 07:43:14 -0600

updated 2021-08-13 07:52:27 -0600

I have just notice that parameter Timestep in the OpenStudio settings is not being used in the simulation. For example, if I choose 6, this step is ok in the .osm file:

  {210f49e8-ab04-4b81-b6fd-0fac6eeadcbc}, !- Handle
  6;                                      !- Number of Timesteps per Hour

But in the in.idf file it will always remain 4:

  4;                                      !- Number of Timesteps per Hour

Am I missing something?

I need to modify this value because I am using custom weather data with subhourly values. I guess the only workaround is to write a energyplus measure to modify this value.

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Do you have other measures in your workflow? I know that the Timestep object is modified by things like tariff measures that need a specific timestep interval for demand widows.

Eric Ringold gravatar image Eric Ringold  ( 2021-08-13 09:59:42 -0600 )edit

I would check what @Eric Ringold suggests. There was an old issue where GUI showed different default value than was used if not specifically entered, but that was fixed in 2016.

David Goldwasser gravatar image David Goldwasser  ( 2021-08-13 10:26:31 -0600 )edit

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answered 2021-08-14 06:00:24 -0600

Thank you very much for your comments. You were right. I was also using a tariff measure that was changing the timestep.

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Asked: 2021-08-13 07:43:14 -0600

Seen: 112 times

Last updated: Aug 14 '21