2 Configuring Your Network Adapter for GigE Visionscape System Components The default value for receive descriptors is 256. Set this to the maximum available - typically 2048. Save changes by clicking OK . The NIC is now enabled to handle larger packets. This means that, instead of sending image data from the camera in chunks of 1500 bytes they can now come in chunks of 8192. That means about 6 times fewer packets for each image. Increasing the number of receive descriptors enables the NIC to handle more packets at any one time. If the processor is busy when an image arrives, the NIC may not be able to send on the data immediately but data is still coming in from the camera.
These receive descriptors buffer the system against this. (It is almost essential when using a CMG50 camera). Attaching and Configuring the Camera(s) Once you have done all this you can connect your camera directly or plug in a switch and then connect cameras to that switch. As they come out of the box the cameras should now assign themselves addresses in the 192.168.254.x range. They are still receiving information about the network from outside in order to make this choice. You can simplify things still further by assigning each camera its own persistent IP address. When you install Visionscape, this folder is placed on your C: drive:
C:\Microscan\Vscape\Drivers\GigE\JAI\ Navigate to that folder and double-click on JAI SDK 1.4.0.exe or JAI SDK x64 Version 1.4.0.exe (depending on whether you’re running a 32-bit or 64-bit system) to install the JAI GigE Vision Persistent IP Configuration Tool . Once the tool is installed, navigate to Start Menu > All Programs > JAI SDK > Tools and click on Persistent IP Configuration Tool to open it. Visionscape GigE Camera Guide 2-29