Case

[DPJones]

Hi

Can someone please show me how to see/use the results in my array (initialised array) in the next case ie case number 2 in my state machine.

Many Thanks 

David

[GerdW]

Hi David,

use shift registers! (THINK DATAFLOW!)

And please don't use "default if unwired" tunnels with references. Never ever! 😉

[Cente90]

Hello David,

A local variable of the array read in the state 2 should be the simplest way to fit your need, but as a general guideline local and global variables don't give high performance with arrays when they grow large. So I suggest you to pass the array through the various states using a shift register, exactly as you do with the numeric constant that sets the state.

[DPJones]

Hi GerdW

I have attached my vi. in case 1 bottom right hand corner of my case statement I cant make it a shift register it wont let me if you also look at case 2 I cant connect my initialised array to it .

I want to be able to display the data in case 2? can you please advise

Best regards

David

[GerdW]

Hi David,

in case 1 bottom right hand corner of my case statement I cant make it a shift register it wont let me

Shift registers belong to loops, but not case structures!

There already is a shift register in this loop, all you need to do is create another one!

(This is pretty basic LabVIEW stuff - I guess you noticed the "Getting Started" on top of the LabVIEW board already!?)

Unfortunately I cannot open your VI, I'm stuck with LV2014 right now.

What's the point of the innermost FOR loop in your image? Why don't you use BuildArray in concatenation mode?

[DPJones]

Hi GerdW

I have attached 2 screen shots i am trying to pass an array  in case 1 (100 bytes) to work on in case 2 I have only put in initialized array in case 2 to check I can view them for testing purposes I have tried a shift register but it did not display any data in my array in case 2?

Best Regards

David

[GerdW]

Hi David,

i am trying to pass an array  in case 1 (100 bytes) to work on in case 2

Repeating the previous suggestion: use a shift register to keep data from one iteration of your statemachine to the next!

I have only put in initialized array in case 2

Well, did you read the error messages you get by your wiring?

Repeating the very basic LabVIEW mantra: THINK DATAFLOW!

I have tried a shift register but it did not display any data in my array in case 2?

There is no corresponding shift register in your images…