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Operational Reference
Nano Series GigE Vision Camera
Acquisition Buffering
All acquisitions are internally buffered and transferred as fast as possible to the host system. This
internal buffer allows uninterrupted acquisitions no matter of any transfer delays that might occur
(such as acquisition frame rates faster that the Gigabit Ethernet link or the
IEEE Pause frame
).
Only when the internal buffer is consumed would an Image Lost Event be generated.
Using Transfer Queue Current Block Count with CamExpert
This feature returns the number of frames buffered within the Genie Nano pending transfer to the
host system. Image frames are buffered in cases where the host system is temporarily busy or
cases of high network traffic with other devices through the same Ethernet switch. By buffering
image frames, the Genie Nano will not need to drop frames when there are temporary delays to
the transfer.
When using CamExpert, right click on this field and then click on Refresh from the pop-up menu.
The current frame count in the transfer buffer is displayed in the Value field. During live grab, if the
number of frames in the transfer buffer is increasing, then there is a problem with the network or
host bandwidth being exceeded. The ImageLost event occurs when all buffer space is consumed.
Features that Cannot be Changed During a Transfer
The following features cannot be changed during an acquisition or when a transfer is connected.
Feature Group
Features Locked During a Sapera Transfer
CAMERA INFORMATION
UserSetLoad
SENSOR CONTROL
NA
I/O CONTROL
NA
COUNTER AND TIMER CONTROL
NA
IMAGE FORMAT CONTROL
PixelFormat
OffsetX
OffsetY
Width
Height
Multi-ROI
ACQUISITION AND TRANSFER CONTROL
DeviceRegistersStreamingStart
DeviceRegistersStreamingEnd
EVENT CONTROL
NA
GIGE VISION TRANSPORT LAYER CONTROL
GevSCPSPacketSize
GIGE VISION HOST CONTROL
InterPacketTimeout
InterPacketTimeoutRaw
ImageTimeout
FILE ACCESS CONTROL
NA
Содержание Genie Nano Series
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