Simulink to LabVIEW automatic conversion

Question

I used the Tools>>Control Design and Simulation>>Simulation Model Converter to convert a Simulink file (.mdl) to a .vi (multiple files). The problem is that the converted files have a lot of errors and therefore  are not executable. The most frequent error is "You have two terminals of different types. the type of the source is cluster of 2 elements. The type of the sink is 1-D array of double [64 bit real (15 digit precision)] " How to I resolve this error? Is there a difference between Bus Creator/Bus Selector and Bundle/Unbundle in Simulink and LabVIEW respectively? I attach a sample VI. Thanks.
Attachments:
Water Pump.vi ‏13 KB

Answer 1

Hello AAR,
I cannot speak as much to the exact functionality of the Bus Creater/Bus Selector, but I will see if I can describe the bundle/unbundle to help clear up any confusion.
The Bundle function creates a cluster in LabVIEW which can be a group of like or unlike data.  This cluster can be passed around the diagram and then the Unbundle or Unbundle by Name functions can be used to pass out a particular value in the cluster.
I am not sure what your original model was doing, but it is easy to see why the VI you attached is broken.  You can resolve the broken wires in some different ways, and it depends on your intention with your original model.
The attached file builds several scalars and an array into a 1-D array.  This array is then Bundled with a second array.  The cluster output of this bundle function is then being passed to an indicator called Water and a Global Variable called Inlet_water.  The datatype of both Water and Inlet_water is an array of doubles.  In LabVIEW the cluster datatype and array datatype or not interchangable.  I am not sure how these arrays are used in the rest of the model, but here is where your options come in.
You could replace the Bundle with a Build Array(concatenate the inputs to make one 1-D array rather than a 2-D array).  Then, wherever you need access to specific elements of the array you can use the Index Array function.  For this modification you will need to know the index of the element you are interested in when using the Index Array.  Either that or convert your global variable and indicator to be clusters.  I think the first modification would probably be the simpler modification, but again it is dependent on how you intend to use the data in the rest of your model.
I hope this helps, please post back if you have further questions about this.
Regards,
Angela M
Product Support Engineer