Teledyne Linea GigE LA-GM-04K08A User Manual page 85

TransferControlMode = UserControlled
The User Controlled Transfer Mode decouples the camera acquisition module from the camera
transfer module and also from the host computer transfer module. The user has total control of
each of the three control modules. Some important points are:
• The acquisition module writes frames into the camera's circular frame buffer memory. Only
when all buffers are written will the next acquisition overwrite a previously stored image (this
also generates the ImageLost event).
• The camera transfer module is independent of the acquisition. This allows the acquisition to not
be interrupted by any network delays or traffic on the connection with the controlling host
computer.
• The host computer also has independent control of the host transfer module which allows the
host application to optimize receiving image packets along with other tasks running on the host.
• Important: Under user controlled transfers, the feature TransferOperationMode sets the
transfer as either Continuous or a specific image frame count (MultiBlock). The transfer frame
count is set by the feature TransferBlockCount, which must be equal or less than the number of
image frames available in the camera's circular frame buffer (else the command is rejected).
The feature transferQueueCurrentBlockCount is used to read the available buffer count before
starting a block count transfer.
Acquisition
Camera
Linea GigE Series Camera
Circular Frame Buffer
FB 1
Write
FB 2
Index
FB 3
FB 4
FB 5
FB 6
:
FB n
Transfer
Read
Index
Camera Transfer
Module
Operational Reference • 83
Host
Computer
Transfer
Module