How to prevent a value in the updated shift register?

Hi comrades NOR users,.

I am new to graphical programming LabView and the Acquisition of equipment. After reading the basics of loops, data flows and data memories, I'm still lost of what I'm trying to achieve.

I use a DAQ to acquire the digital signal of all the relays. When the relay is turned on, it generates a 1, and when it goes off it genereates has 0.  I also have a counter so that the contours of the reversal of the relay. The relays are stunning and turn off every 4 minutes.

However, during the night a relay can misfire and the County would not match upward. I want to write a LabView program that would stop the test when the relay cont of incompatibilities.

That's what I've got so far.

The concent is easy, take the current 1 d array and compare with the previous table, if one of the element in array 1 d current is identical to the previous item, then I know that there is a rate of relay.

Problem is that the previous table registry to offset is constantly updated since the acquisition of data is continually signals.

How can I take the 1 d of the previous reading counter table without being crushed?

See you soon,.

Leon

Hello to 12 inches,

Shift registers are always up to date, but you can use shift stacked registers to read data from previous iterations.  Take a look at the following information:

http://www.NI.com/getting-started/LabVIEW-Basics/shift-registers

http://zone.NI.com/reference/en-XX/help/371361H-01/lvhowto/using_shift_registers_to_r/

Kind regards

Tags: NI Hardware

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