event structure, case structure, iteration number

[liubingxy]

Hi

I am trying one example about Event Structure from the book,  LabVIEW for Everyone: Graphical Programming Made Easy and Fun. 

The example in the book looks like this:

The number of 'work done' equals 'iteration number'.

But when I build a Vi and try this example, I got this:

iteration number is two times the 'work done'.

I have attached my Vi. Does anybody know what's wrong with my Vi

Thanks

Bing

[Norbert_B]

Most likely, your button is configured for the "wrong behavior".

The example your screenshot shows expect the button to be "latch when released".

I think your button is "switch when pressed"...

Norbert 

[Yamaeda · Accepted solution]

Both Activation and Deactivateion of the boolean causes Value Change events, but you only add 1 when it's activated. If you set the booleans mechanical action to Latch instead of Switch they should be the same.

/Y 

[liubingxy]

Thank you both! problem solved.