I need to read barcode using visa OR and store it in file .text

Hi all

I need to read to Barcdode using communications series (OR visa) and store it in .txt) file...

(I have attached series vi read file... here I can able to read codes to bars, but quickly it goes to zero...)

Hello

have you checked on the examples of series communication delivered with Labview?

In addition, if you want to send the data to the port of reliable succession, I suggest to use a cleaner approach - pack your data of barcode in a significant data structure. The data structure would look like AUT like this: 1. start of data (described at the beginning of the data packet), 2. data bar code, 1B. end of data (described at the end of the data packet) and 4. checksum of data (apply only 1 a or 1 b, whatever you prefer). If you plan to add additional information to your package of data later, this would be really easy to change. This way you can also check if the data got lost during the transfer, notify the user.

You can take a look at how to read this data package here (set up a loop of producer-consumer, although not necessary):

https://decibel.NI.com/content/blogs/kl3m3n/2014/10/17/serial-data-send-with-CRC-cyclic-redundancy-c...

Best regards

K

Tags: NI Hardware

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