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missing assignment to input tunnel

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Hello,

 

I've added two shift registers and tunnels to an existing LabVIEW program - the highlighted "Pulse Width" and "delta_I" . I've linked them to the input tunnel so the blocks are solid with a white triangle. However, it still gives me errors saying "missing assignment to tunnel" and the "show error" all point to the two input tunnel on the left middle of the picture.

 

The details of this error says it is caused by unwired "output tunnel", but obviously all output tunnel are wired and the error is not even at output tunnel.

 

Any help is appreciated! Thank you!

missing assignment to tunnel.png

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Message 1 of 9
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Hi yb,

 

do you mind to post an unscaled image - or even better the whole VI?

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
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Message 2 of 9
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hi GerdW,

 

I've updated the picture.

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Message 3 of 9
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Much better…

 

What's in the other cases?

Are you sure you didn't place tunnels over other tunnels?

Which tunnel is selected when you click the error message in the error report window?

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
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Message 4 of 9
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There are like 30 cases...

 

Most of them are just connecting the input tunnel directly to the output, except this "initialize" and other two. I'm posting the other two here. but probably they are too messy to read...

 

There are 49 errors, and all of them go too these two input tunnels...

 

What do you mean by "place tunnels over other tunnels"?

 

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Message 5 of 9
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Solution
Accepted by yb_85

Hi yb,

 

What do you mean by "place tunnels over other tunnels"?

Sometimes it happens you have two tunnels in the same place at your case structure, one hiding the other.

Please select the tunnels marked as "erranous" (one by one) and move it to a different place to check there is no other tunnel hiding under…

Best regards,
GerdW


using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019
Message 6 of 9
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wow! is it that easy...!!?

 

problem solved! new skill get!

 

Thanks a lot, GerdW!!

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Message 7 of 9
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it is possible to have tunnels on top of each other.  this gets really ugly since the tunnels look wired but are not.  there is a VI Analizer test for overlapping (or hidden) objects that would catch this.

 

Try dubble clicking the error in the error list to select the tunnel that is unwired and move the tunnel with the arrow keys to maybe see if there is more than one.

 

EDIT: OK I'm late!


"Should be" isn't "Is" -Jay
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Message 8 of 9
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Thank you anyways Jeff!

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