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Known Issues

In this section you will find solutions to known issues that we have came across while testing communication between Adaptive Vision products and different camera models through GigE Vision.

Imaging Source Cameras

There might be problems with image acquisition from Imaging Source cameras through GigE. It's caused by the implementation (regarding caching and packet size) of GigE Vision standard in those cameras and as a result no image can be seen in Adaptive Vision Studio (the previews are empty during program execution).

To resolve this issue, a camera restart (this has to be done only once, after you encounter the problem with image acquisition) and changing some parameters in Adaptive Vision GenAPI configuration are required. Parameters which should be changed are:

  • Enable GenAPI Cache (should be set to False),
  • Disable Packet Size Negotiation (should be set to True),
  • Enable Constant Packet Size (should be set to False).

In order to change these parameters you should (before opening device connection) open library configuration with function GigEVision_OpenSystemConfiguration, and using GenApi function set the following parameters (please note that these parameters have to be set separately for each application):

  • GevAppTLEnableGenApiCache (Boolean) to False
  • GevAppTLDisablePacketSizeNegotiation (Boolean) to True
  • GevAppTLEnableConstantPacketSize (Boolean) to False

Flir Cameras

There might be problems with image acquisition from Flir cameras through GigEVision. It is caused by the implementation (regarding image trailer data) of the GigE Vision standard in those cameras and as a result no image can be seen in Adaptive Vision Studio (the previews are empty during program execution).

To resolve this issue a parameter change in Adaptive Vision GenAPI configuration is required. Parameter which should be changed is:

  • Enable Ignore Gev Image Trailer data (should be set to True).

In order to change this parameter you should (before opening device connection) open library configuration with function GigEVision_OpenSystemConfiguration, and using GenApi function set the following parameter (please note that this parameter has to be set separately for each application):

  • GevAppTLIgnoreGevImageTrailer (Boolean) to True

Point Grey Cameras

It is recommended to use a fixed IP address in the computer to which the camera is connected. Using DHCP may result in long time before the camera is ready to use after connecting. Typically it is two minutes.

For more information please refer to the article about the GigE Vision Device Manager.

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