What does -1073807252 serial port error code mean?

[Deutschrich]

Hello again,

Here i have a screenshot of my program. I've probed the solution of Robert but it give any result.

Can you see my program and say pleace but I'm doing wrong?

Error -1073807252 occurred at VISA Read in Interfaz2.vi

Possible reason(s):

VISA:  (Hex 0xBFFF006C) An overrun error occurred during transfer. A character was not read from the hardware before the next character arrived.

I transfer and receive data continually without TermChar but each string, both of reception and transmission, is compound for two header bytes.

Can you help me pleace? I must solve this problem...

Thanks for your time.

[Deutschrich]

any idea pleace?

[Robert_Deschambault]

Hi,

It looks to me like your are trying to read and write serial data at the same time inside your while loop.  In my programs I have used an event structure to separate my serial reads and writes using a periodic trigger.  I trigger my reads based on data being available at the serial port by using a property node to get the Bytes at Port.  I check for data every 5 Hz.  

I send out data for a serial write when I have data and I use a 5 Hz timer to trigger this event as well.  If there is no data, I do nothing, otherwise I send out the data.

Can you send me your email address and I can send you some example code to illustrate this?  You don't have to trigger these things as I did, but it might work better if you separate your reads and writes.

[Deutschrich]

Hi Robert,

Thank you for your reply.

I have the same problem inclusively using only a program to read data in a while loop.

My email address is electrich@gmail.com

Here there is a foto for this program.