serial communication in labview

[samtha]

hi there i am trying to use serial port init to send data through externally and plot on the graph this is what i have done till now but in vain could you please help me pls..... thank you in advance
 

[Norbert_B]

I suggest you to use VISA instead of the serial functions. You can try using the Instrument Assistant or search for examples which are close to your needs.

hope this helps,

Norbert 

[Robin Hood]

Hi

       your problem got solved?

[samtha]

no vipull.....i have also used VISA serial port but when i send data externally its not getting plotted on my graph..... iam attaching my VI pls do check it thank you

[Robin Hood]

Nice to see you after a long time

[bluefocs]

I took a look at the VI, but I am a little unsure what you're sending data too. I am also unsure why your trying to read something that you've just written to the serial port. 

Also, does the device you're reading/writing to work this way?

The code your using looks as if it might work, maybe you could provide some more information of what you're trying to achieve?  

[samtha]

what i am trying to do is i am sendig data from a pcb board and i want plot that data on a graph using serial communication hope i am clear this time that means

when you connect usb to your CPU i am sending data to a COM PORT using serial port and serial port reads it and plots on the graph.....

[samtha]

and also pls take a look at another VI i have attached (GUI 1 (req) serial init)

[Dennis_Knutson]

You are worried about graphing and you have not even said that the VISA Read is returning any data to graph. If you are not getting anything read, then you have fix that problem first. If there is data, then you need to explain the format that is being returned.

[samtha]

hi the actual thing is when the data is being sent from the com port then write string sends signal to the serial read and the serial read reads the data and the data is concatenated and converted into number and then to array and that is plotted on the graph hope i am clear this time.