CLAD2017 - Fundamentals - State Machine 700

[SercoSteveB]

What is the value of Numeric Value Out following execution of the VI?

NOTE:  The all other cases of the Case Structure are shown below:

  

  

a) 10

b) 12

c) 14

d) 16

[crossrulz]

D

[nik35324]

D

States:

Spoiler

Initialize, Initialize, Idle, Idle, Idle, Acquiring (Unarmed), Acquiring (Unarmed), Acquiring (Armed), Reset, Finalise.

[Baltur]

D = 16

I agree with the states nik32324 listed with the small addition

Spoiler

that Reset will lead to Default case.

[tobiasiam]

I'm confused, shouldn't the VI go from the 'initialise' case to the 'idle' case. But I don't see an idle case in any of the other cases?

Also in 'Acquiring (Unarmed)' what is the function after the true constant?

[SercoSteveB]

It is there tobiasiam, maybe go for a screen refresh?

[Baltur]

@ tobiasiam : About your second question: This function is a feedback node with a delay (the direction has been set so the input is on the left and output on the right). Hint: The boolean array on the left is connected to it.

[Tsjabrantes]

D...

[A.Bernau]

D

Yes, "Default" case instead of "Reset"

Inside “Acquiring (Armed)” no "i" (while loop index) is required (with that given answers a..d) Enough to know answer is greater than 14.

But to be honest to solve this kind of question I have to print it out and have to use two or three pens with different colours...

[Baltur]

I noticed just now that the feedback node display in the case/state "Aquiring (Unarmed)" is probably wrong again, similar to the original posted image in https://forums.ni.com/t5/The-Daily-CLAD/CLAD2017-Environment-Look-at-the-state-you-are-in/ba-p/37274... . It still has the global initialisation terminal ('star') which it shouldn't have because of initialisation by array at the start of the loop. Copy-paste error again? 

[SercoSteveB]

Good spot Baltur, question modified.

[Ellie90]

D

[Matt-A.]

D. 

[N3MRA]

D, ugh, on the second try!

[mini09]

D

[Priya16]

D

[rispovin]

i do not understund the case acquiring unamed,  i usually use the fb node (for example) as positive or negative transition,   but i see for the first time this kind of use for it   

[SercoSteveB]

Hi rispovin

Check out the Delay options of Feedback Nodes.  In the Acquiring Unarmed Case I have configured the feedback node with a Delay of 3.  This means the TRUE passed to the node on the first execution of Acquiring Unarmed Case will be delayed by 3 iterations appearing on the fourth.  NOTE:  There is an additional in the question though (because that's how I roll) the feedback node is initialised outside the loop.

e.g. This

Gives:

[rispovin]

 thanks for your response, now it is all clear

i assigned to you one kudo

[alexderjuengere]

finally D

[levonsg]

D

[Hesham_Hassanein]

 How does this work. I don'T get it.

[SercoSteveB]

Hi Hesham_Hassanein,

Which part are you struggling to understand?

Steve

[Hesham_Hassanein]

how does the state machine start executing?

[SercoSteveB]

The VI in the question is a State Machine it starts executing as soon as the VI is run. 

NOTE: The question has two graphical parts:

1. At the top is the VI (the bit with the While Loop), that is the State Machine
2. Underneath the VI are four case structures, these are not additional VIs they are there to show you the contents of the hidden cases within the Case Structure in the State Machine.

[alexlim]

D. Feels good to be finally able to get the correct answer in first attempt without referring to the choices given and make guesses! This blog is indeed very beneficial!

[istan0227]

D