Jump to content

Slow Serial Port Connection


Recommended Posts

Hi all,

I'm trying to communicate with an instrument that uses serial connection. I have a closed loop wind tunnel algorithm in place that uses a pitot-static system in the wind tunnel to close the control loop (A voltage out controls speed).

I am calibrating various anemometers, and previously was using a device that outputted a voltage and was read with a USB DAQ device. I was able to have my control loop run extremely fast prior to using the serial device. Any thoughts on this?

Link to comment

Other than the fact that a serial connection will be slower than a USB DAQ I'm not sure what you're really expecting in terms of an answer. Which USB DAQ device were you using? What's your instrument? What's your baud rate? Have you configured the VISA Read to end its read on a termination character? If not, are you accumulating the serial port reads in a loop? What's your loop rate?

Link to comment

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.