Log in

View Full Version : NI Vision assistant: Acquire Axis image


kamocat
15-02-2011, 23:13
I'm having trouble with the "acquire image from Axis" feature.
When I try to "acquire a single image" or "acquire continuous images", I get the error:
http://content.screencast.com/users/kamocat/folders/Jing/media/ba813bf8-a857-4455-8af0-8b0a29660390/read_from_axis_error.png

Sequence acquisition returns no errors, but all the images come out black.

I can use the WPI Camera Vis to acquire images with LabVIEW with the default IP address: 192.168.0.90. (This is the IP address used in the NI Vision Assistant as well).


Am I doing anything wrong?

(There are plenty of workarounds, but it'd be nice if this feature worked)

Greg McKaskle
16-02-2011, 20:03
Are you talking about the Acquire Image (Axis IP) camera type? Then you press play or get single image?

I wouldn't expect that error, but if it doesn't work for a given camera, check the account setup on the camera. Also, occasionally the cameras will return a server busy error, but again, I wouldn't expect that to turn into a zero length image data error.

Greg McKaskle

kamocat
16-02-2011, 22:04
You were right about the configuration.

It appears the NI Vision Assistant only uses the FRC, FRC username/password combination, wheras the WPI code will work with any of three combinations.