Technical information

AVT GigE IR & scientific camera and driver features

AVT GigE Camera and Drivers Features V2.0.0

This document is a master document for all AVT GigE camera models and is NOT camera specific

NonImagePayloadSize [Integer] R

Maximum size of chunk data, not including the image chunk, in the image block

payload. If ChunkModeActive = False, NonImagePayloadSize = 0.

DeviceControl

DeviceFirmwareVersion [String] R/C

Firmware version of the AVT Goldeye camera.

DeviceLinkSelector [Integer] R/W

Selects which link of the device to control.

DeviceLinkThroughputLimit [Integer] R/W

Moderates the data rate of the camera. This is particularly useful for slowing the

camera down so that it can operate over slower links such as Fast Ethernet (100-

speed), or wireless networks. It is also an important control for multi-camera

situations. When multiple cameras are connected to a single Gigabit Ethernet

port (usually through a switch), DeviceLinkThroughputLimit for each

camera needs to be set to a value so that the sum of each camera’s

DeviceLinkThroughputLimit parameter does not exceed the data rate

of the GigE port. Setting the parameter in this way will ensure that multiple

camera situations work without packet collisions, i.e. data loss.

To calculate the required minimum DeviceLinkThroughputLimit set-

ting for a camera in any image mode, use the following formula:

DeviceLinkThroughputLimit = Height x Width x FrameRate x Bytes per Pixel

115,000,000 is the typical maximum data rate for a GigE port. Beyond this set-

ting, some network cards will drop packets.

DeviceLinkThroughputLimitMode [Boolean] R/W

When On, camera automatically limits frame rate to bandwidth, determined by

DeviceLinkThroughputLimit, to prevent camera buffer overflows and

dropped frames. If Off, frame rate is not limited to bandwidth but by sensor

readout time. Latter case is useful for AcquisitionMode = Recorder or

StreamHoldEnable = On modes, as these modes are not bandwidth lim-

ited.

Units: Byte

Range: [1,000,000 – 124,000,000]

Units: Bytes/s

Note



If you are seeing occasional frames/packets reported as

StatFrameDropped/StatPacketMissed you will

likely need to decrease this parameter.

Possible values: On, Off Default: On