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How to convert an OpenStudio model to an older version ?

asked 2018-07-09 02:36:03 -0500

updated 2018-07-09 07:26:44 -0500

Hi, I want to load a file that I created in OS V2.5, but my actual version is V.13.4 and when I try that I get this message: Error: Version extracted from file '2.5.0' is newer than current OpenStudio Version 1.13.4. What should I do ? Is there a way to convert it (a link or something)? Thanks

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answered 2018-07-09 13:18:47 -0500

updated 2018-07-09 16:09:56 -0500

OpenStudio models are not forwards-compatible with prior versions. You will need to download and use OpenStudio version 2.5+ to open a version 2.5.0 model.

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Sorry to be pedantic, but what is being discussed here is not backward compatibility, but rather forward compatibility, the ability of older software to accept inputs created by newer versions. Forward compatibility is much harder than backward compatibility and few software packages support it in a general way.

__AmirRoth__ gravatar image__AmirRoth__ ( 2018-07-09 13:52:13 -0500 )edit

thanks for the clarification Amir - I didn't know the distinction.

mdahlhausen gravatar imagemdahlhausen ( 2018-07-09 16:09:39 -0500 )edit

answered 2018-07-11 00:42:52 -0500

Binghang gravatar image

If your model does not contain any features from the newer version OS, you still can open it in an earlier version by revising the version identifier to 1.13.4 in OSM file. Or you have to delete new components in your model until you can open it in the previous version. Then you can add deleted components back in the previous version. I think this not a smart way but it does the work.


{52ebc7df-1931-44b8-9258-342ba3730fbd}, !- Handle

2.5.0; !- Version Identifier

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answered 2018-07-21 21:29:06 -0500

blucu gravatar image

You could try with this: first export the model in gbXML and then import the gbXML model to your earlier OS version, greetings

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This will only import geometry, not HVAC

mdahlhausen gravatar imagemdahlhausen ( 2018-07-22 10:27:59 -0500 )edit

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Asked: 2018-07-09 02:36:03 -0500

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Last updated: Jul 21