unable to retrive data continously from external device

[prabhu91]

Hi,

I wrote program to read the values of external devices through serial communication but not working properly. when I run the program , First time all sessions are opened and read values as expected but the execution time between the loops is 2 seconds. secondtime, all operation executes as expected but  values are not reading and the execution time between  the loops is 50 ms.  I attached VI and sequence structure. Kindly support me.

[GerdW]

Hi prabhu,

it seems you forgot to implement (most of) error handling at all!

Don't you think it would help to know atleast the error numbers?

(For other readers: the VI contains a lot of Plasmonique ModBus VIs…)

[prabhu91]

Hi GerdW, 

Thanks for your support.

I am new to Labview. I checked with error out. Please find the attachment. I don't have any clue about this...

With regards,

Prabhu

[GerdW]

Hi Prabhu,

right-click the error cluster to read the explanation…

I am new to Labview. … I don't have any clue about this...

Did you take the free beginner resources offered by NI to learn LabVIEW?

[prabhu91]

Thanks Mr. Gerdw,

No. I took youtube tutorials. I will read the NI beginners resource as you recommend.

The error warning is attached. kindly support what that error means...

[GerdW]

Hi Prabhu,

- it's not an error, it's just a warning

- there might be more data available then was read

[prabhu91]

Mr.Gerdw,

Is it possible to write simple Program for my operation. If so, Suggest me. Also, If any error in my program, Kindly notice me.