Technical information

AVT GigE camera attributes

AVT GigE Camera and Driver Attributes V1.3.1

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

GigE

BandwidthCtrlMode – Enum – R/W

Select the desired mode of bandwidth control.

ChunkModeActive – Boolean – R/W

Enables camera to send GigE Vision Standard Protocol chunk data with an

image. Currently implemented chunk data:

StreamBytesPerSecond [Default] See the StreamBytesPerSecond control

for more information

SCPD Stream channel packet delay expressed in time-

stamp counter units. This mode may be used to

limit the rate of data from the camera to the host.

It works by inserting a delay between successive

stream channel packets, e.g. the longer the delay,

the slower the data rate. This mode is NOT recom-

mended

Both Implements a combination of control modes. This

mode is not recommended

Possible values: TRUE, FALSE Default: FALSE

[Bytes 1 – 4] Acquisition count

[Byte 5]

These 8 bits indicate the following EF lens settings:

• Bit 7 (Error): When this bit is set to 1, the EF lens is in an error state, bits 2 – 5 indicate enumerated

value of last error, and all other bits and Bytes will be 0.

• Bit 6 (Lens attached): When this bit is set to 1, an EF lens is attached to camera.

• Bit 5 (Auto focus): When this bit is set to 1, the EF lens manual/auto focus switch is set to the auto

focus position.

• Bits 2 – 4 (Last error): Enumerated error value:

– 0: No error detected

– 1: Lens failed query by camera

– 2: Lens communication error (can occur when removing lens)

– 3: Lens communication error (can occur when removing lens)

– 4: Lens remained busy for longer than 10 seconds

– 5: Lens focus “Zero Stop” not detected

– 6: Lens focus “Infinity Stop” not detected

• Bits 0 – 1: Upper 2 bits of focus percentage value (see Byte 6).

[Byte 6]

These 8 bits in conjunction with bits 0 – 1 of Byte 5, indicate the current focus position of the EF lens in

(percentage of maximum focus range) * 10 (i.e. 1000 = 100 percent = Infinity Stop).

If the lens manual/auto focus switch is in the manual position these bits will be 0.