Thanks for your response Lynn. We actually had wired the sampling frequency into the Butterworth filter subVI, but the wires in that area of the diagram weren't very clear (I am working with emmaline35 on this project). I have cleaned up the wire diagram a bit (attached) and also labeled the troubleshooting charts we've included as to whether or not they give a data output. These charts output expected data except for filter_test_2, which is inside the case structure, so I'm pretty sure that the problem doesn't occur until inside the case structure. Unfortunately, we still haven't been able to figure what the problem with the case structure might be. The case structure works well until we put the filter in (see attached file from emmaline35's previous message on this topic), and the filter seems to be removing mostly noise rather than the real force data. Does any one have any suggestions as to what the problem might be with the case structure now that the filter is included? Thank you for your time.
-Brian Selgrade