Rather than use a global I would prefer to place all the parameters as constants on
one block diagram. You can bundle them and output from the VI as a single cluster;
then you can Unbundle by Name which makes the using code very readable. If you need
to change a parameter you can simply type in the new value and you don't have to
remember to Make Current Values Default.
You stated you would never write to the global programmatically. Using this technique
it would be impossible to write the parameter values programmatically, so it would be
immediately clear to anyone else who looked at your code that the parameters were not
being written programmatically.
Allen Weekley
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