NI Vision assistant: Acquire Axis image

Technical NI LabVIEW
1

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:

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)

2

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

3

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.