Network Controls Via Sapera Lt Or Gige Vision Compliant Applications - Genie M640 User Manual

Parameter
Network Configuration Mode
Inter-Packet Delay (in sec)
Packet Size (in bytes)
Heartbeat Timeout (in Sec)
Maximum Packet Resend
Network Controls via Sapera LT or GigE Vision Compliant
Applications
Sapera
68 • Operational Reference
Description
Specifies the Network Configuration Mode as either Automatic, Manual, or Optimize. In
general use Optimize mode. Some computers, especially laptops, may require manual
optimization of network parameters.
The following parameters can be modified when Manual mode is selected.
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–seen as video noise).
Specifies the maximum packet size, in bytes. The range of possible values is 576 to 1500,
in increments of 4 bytes when the NIC does not support jumbo packet. The maximum is
currently 9000 bytes when jumbo packets are supported (see "Increasing Adapter Buffers
and Jumbo Frames" on page 24
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.
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.
Sets the percentage of packets that can be resent for each frame. This is used to ensure
the streaming data (including resends) does not exceed the Ethernet link capacity. As an
example, a system capturing at 80 MB/s can allow 25% of packet resends without
exceeding 100 MB/s (about the maximum capacity of a gigabit Ethernet link).
Genie Sapera parameters for Network Configuration:
NetworkConfigurationMode = {Automatic = 0, Manual = 1}
InterPacketDelay = Minimum delay in µs between image packets
PacketSize = Image packet size in bytes
HeartbeatTimeout = Heartbeat period (watchdog) in ms before camera disconnect
MaximumPacketResend = Sets percentage of packets that can be resent per frame
In CamExpert, these parameters are available under the "GigE Vision" tab.
See "Accessing Features with Sapera++
XML features for Network Configuration:
PayloadSize = Size of the payload in bytes. This is the total number of bytes sent in the payload.
No packet headers.
Other networks parameters may be available through the 3rd party package used.
to enable jumbo packets on the NIC). In most situations,
LT" on page 69.
Genie Monochrome Series-GigE Vision Camera