Why am I facing a timeout error using getsnapshot - often, not always?

Hello,

I really hope, someone can help me with this as meanwhile I'm quite desperate.

I'm using a gig-e camera from Allied Vision (Manta G-145B) with Matlab R2104a, R2019b and R2021a and the Image Acquisition toolbox.

After having initialised the camera, I'm facing a timeout error quite often while attempting to acquire images by getsnapshot. I've played with triggering ('manually' and 'start()', 'trigger()' and 'stop()') but that didn't change anything.

Error using imaqdevice/getsnapshot (line 65)
A timeout occurred during GETSNAPSHOT.

It seems to me, that R2014a doesn't run into this timeout as often as the later revisions.

Has anybody any idea? For any help I would be grateful.

Cheers,

Ralf

Here's my code:

% Init
imaqreset;
hwinfo = imaqhwinfo;
cam = 'gige';
fmt = 'Mono8';
packetsize = 8000;
framerate = 5;

info = imaqhwinfo(cam);    
display(info);

dev_info = imaqhwinfo(cam,1);
display(dev_info);

vid = videoinput(cam, 1, fmt);
triggerinfo(vid)
triggerconfig(vid, 'manual');
vid.FramesPerTrigger = 1;
src = getselectedsource(vid);

src.PacketSize = packetsize;
src.AcquisitionFrameRateAbs = framerate;

src.ExposureTimeAbs = 15000; % ms

% Get the image - hopefully
start(vid);
trigger(vid);
img = getsnapshot(vid);
imagesc(img);
stop(vid);

% Clean up
flushdata(vid);
delete(vid);
clear vid;

objects = imaqfind; % find video input objects in memory
if ~isempty(objects)
    delete(objects) % delete a video input object from memory
end

imaqreset;