Mathscript error in an out clusters

Question

It appears that Mathscript Nodes do not execute if there is an error at their error in cluster. This seams to be what I would expect to happen. The error in then feeds to the error out cluster. Again this seems to be what one would expect to happen.
However, I was curious if one has access to reading the error in cluster and/or writing the error out cluster within the Mathscript Node?
Kevin

Answer 1

Hi Kevin,
While you cannot read the elements within the error cluster directly in the Mathscript Node, I have a couple comments that will likely help.
First, check out the link below, specifically sections 5 “Debugging Your Code Within the MathScript Node” and 6 “What Does This Yellow “Exclamation Point Mean?”  This describes the functionality of the error cluster you wire into the error input.
http://www.ni.com/white-paper/3256/
Second, I think your best bet, if you would like to actually use the information contained in the error cluster, is to simply unbundle the error cluster and pass the individual items into the Mathscript Node.  The error cluster contains a status (Boolean), code (integer), and source (string).  Use the Unbundle function to extract one or more of these and pass them into the Mathscript node individually.
http://zone.ni.com/reference/en-XX/help/371361J-01/glang/unbundle/
http://digital.ni.com/public.nsf/allkb/BF72229C53F7633386256EDD0069331B?OpenDocument
Ryan C.
Applications Engineer
National Instruments