User`s manual

Preliminary
Genie Monochrome Series-GigE Vision Camera Operational Reference • 63
Network Controls & GigE Vision Parameters
This section describes how to optimize the network configuration for maximum Genie bandwidth.
Optimization of these parameters is highly dependent on the number of cameras connected to a NIC,
the data rate of each camera and the trigger modes used.
In general, the Genie driver can optimize image transfers using the Automatic Network Configuration
mode. If this does not provide satisfactory performance, it is possible to optimize transfers by
manually setting the network configuration parameters. The following screen shot of the GigE Vision
Parameters shows the CamExpert control set to Manual. Descriptions for each parameter follow.
Parameter Description
Network Configuration Mode Specifies the Network Configuration Mode as either Automatic or Manual. In
general, it is recommended to use Automatic mode.
The following parameters can only be modified when Manual mode is selected.
Inter-Packet Delay (in sec) Specifies the inter-packet delay, in sec. The range of permitted values is
0.000000 to 0.065535. The inter-packet delay is the minimum time interval
between two successive packets. This can be increased if the NIC is unable to
keep up with packet arrivals (thus dropping packets).
Packet Size (in bytes) Specifies the maximum packet size, in bytes. The range of possible values is
576 to 1500, in increments of 4 bytes when NIC does not support jumbo packet.
It can go up to 8000 bytes when jumbo packets are supported. In most
situations, use the largest possible packet size supported by your network
elements. In order to support jumbo packets, all intermediate network elements
must support them, otherwise they will simply be silently discarded and no
image data will reach the PC.
Heartbeat Timeout (in Sec) Specifies the heartbeat timeout, in seconds. The range of permitted values is 0.5
to 65, in increments of 0.001 seconds. This is used by the camera to ensure the
PC application is still linked. If the heartbeat timeout expires, the camera will
shutdown the connection to the current application.