CHANGE OF STATE

Dear all,
I want to write an application involve change of states of an indicator.
The indicator will by default will be green in colour and will only change to to either amber or red colour.
I need the program to output an message only when there are certain conditions arise. The conditions are:
i) green to amber
ii) green to red
iii) amber to red
iv) red to amber
The rest of the conditons there will be no message output.
What are the best ways to write this program? Is it more efficient to use state machine, event structure for this application?
Anyone can help out with this? Thanks so much!

Joven wrote:
That is indeed an elegant solution. So Short and sweet. Thanks so much for your kind help.
The program stays about the same size, even with thousands of inputs. You simply use arrays instead of scalars for the data. Infinitely scalable!
Here is a quick draft for 10 inputs.
(Looking at your code, you still make unnecessary local variables. Why do you possibly need the "array" local and indicator????)
Message Edited by altenbach on 04-19-2010 07:34 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
state changeMOD_Array.vi ‏12 KB
StateChangeArray.png ‏10 KB

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invert.png ‏3 KB
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CHANGE OF STATE

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