port serial

[Benyamin.KH20]

hello

i have a problem with port serial ?

what is this ?

 

[hooovahh]

That is a picture of a VISA control allowing you to select a COM port for some operation.  What is your problem?

[Benyamin.KH20]

That is a picture of a VISA control allowing you to select a COM port for some operation.  What is your problem?

tnx

in this picture there is'nt  icon

but in this picture

why is this icon?

[bigjoepops]

• You get an icon there because the port has already been opened or used I believe.  Do you have a VISA close in your code when you are done with the port?

[Benyamin.KH20]

 

• You get an icon there because the port has already been opened or used I believe.  Do you have a VISA close in your code when you are done with the port?

 

 

this is my code

 

 

2

 

 

3

 

[Rolf Kalbermatter]

this is my code

 

 

Aside that it looks awful if you do not have a least a 60 inch screen, you never let the loop terminate programmatically. So to terminate your program you have to abort it. That does NEVER let the Close VISA function execute and your port stays open until you shutdown LabVIEW.

[hooovahh]

this is my code

 

No that is pictures, code is in the form of VIs.  In any case rolfk is right, you never close the port, because you never close your resource, because you stop your car by crashing it into a tree instead of using the brakes.  Use proper coding techniques to exit your program, and perform clean up operations on exit/stop.

[Benyamin.KH20]

No that is pictures, code is in the form of VIs.  In any case rolfk is right, you never close the port, because you never close your resource, because you stop your car by crashing it into a tree instead of using the brakes.  Use proper coding techniques to exit your program, and perform clean up operations on exit/stop.

 

 download

[hooovahh]

 download

Thank you but please next time don't upload to some fly by night uploading site.  Use this forum that's what it is here for.

 

And the comment still stands that you have a false constant wired to the while loop so there is no hope to releasing the serial port resource.

 

EDIT:  That has to be a maintenance nightmare.  Way too many locals, too large of a BD, too many property nodes, too many cases, on the bottom center, no event structure for handling the run-time menu.  Look into a state machine.  And arrays for data instead of 60+ scalars.