[Greg McKaskle]

This error means that you are trying to Get something that has not been opened.

This could mean that your open code failed to run. If you have other errors in Begin and you chain the errors together, a subVI that is sent an input error typically skips.

This could mean that your Open code works, but the Motor is being Closed before the Get.

This could mean that there is a race condition and the Get is called before the Open.

Of course this often means that the names are different. You may want to copy the Open name and paste it in the Get.

Greg McKaskle