Watching if something increments?

[Tomo8281]

Hi guys,

Bit of an odd question, but is there any VI in labview or function that flags up a bool output (true/false) if something increments? I have a Adder that gets one value from the input of the while loop (from the side using a Shift register) and another comes from a array. This all works perfectly and the output goes up (1,2,3,4... etc) so nothing wrong with my circuit :D!

I've tried to do it in C using a script node but it just says ON so i dont think itll work. I need it to go on and off, or just stay off if it doesnt sense the number going up.

Any ideas?

Cheers.

[Pnt]

There is a vi "Change  Detector"

Report if input has changed since previous call.

Freeware from Moore Good Ideas, www.mooregoodideas.com.

[Tomo8281]

Thank you! Found it and it looks good. Im wondering how to use it though since ive wired it up to a counter which steadily counts by 1. Its output is always false though? is there anything else i need to wire it to?

[vt92]

Here is an example of how to use this vi.  Each time you increment the value, the indicator changes to True, then back to false on the next iteration.