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Difference Calculation

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Hi!  I have two signals, represented as 16 bit doubles, let’s call them A and B.  These signals are read inside of a WHILE loop.  I would like to calculate An-An-1 and Bn-Bn-1, where An and Bn are the values of A and B at the nth iteration of the WHILE loop and An-1 and Bn-1 are the values of A and B during the n-1 iteration of the WHILE loop.  Looking for guidance.  Thanks!

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Solution
Accepted by topic author cgs1960

Use two shift registers. Look at the help files or the online Getting Started tutorials for more information.

 

Lynn

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Look at the Help for Shift Register or Feedback node.

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