JAI CV-A11 - Manual (Page 16)

CV-A11
6.11. Partial scan readout mode
This mode allows increased frame rate, as only a selected number of lines are read out. The
vertical resolution is reduced as outlined below. Partial scan will operate in normal continuous
mode and all trigger modes.
Fig. 23. Partial scanning.
The partial scanning settings are as follows:
Readout format
Frame rate Effective lines ASCII-Command
Full frame readout 30 fps 492 SC=0
1/2 partial readout 58 fps 240 SC=1
1/3 partial readout 73 fps 160 SC=2
1/6 partial readout 124 fps 80 SC=3
To use this mode:
Set function:
Trigger mode to any TR=0 through TR=6
Shutter mode to “Normal” or “Programmable” SM=0, SM=1
Shutter Speed using fixed steps SH=0 through 7
or Programmable exposure PE=1 through 1023
Polarity and other functions
Input: Ext. trigger to pin 5 on 6 pin connector (or 11 on 12 pin connector)
Ext. VD to pin 7 on 12 pin connector.
Ext. HD to pin 6 on 12 pin connector. (If used).
Important notes on using this mode: -
• In order to minimize smear effects on the image, it is recommended to avoid strong light
outside the active partial scanned region.
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