JAI CV-A11 operation manual Partial scan readout mode, Readout format Frame rate Effective lines

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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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Contents CV-A11 Table of Contents CV-A11General Main FeaturesStandard Composition Camera Housing and Dimensions Pin Multi-connector Trigger and RS232C Pin Multi-connector DC-IN/VIDEO OUT, EXT.HD/VDPin Assignment Input and Output Circuits Video outputTrigger input HD and VD inputFunctions and Operations Basic functionsInput-output of HD/VD Signals Continuous Operation Non triggeredExternal Trigger Modes Edge Pre-select Mode.TR=1Edge Pre-select Mode Important notes on using this modePulse Width Control Mode Pulse width controlFrame-delay read out Mode Frame delay read out Long Time Exposure Mode Long time exposureStart/Stop Mode Start/stop modeSmearless Mode Smearless modePartial scan readout mode Readout format Frame rate Effective linesOther Functions Configuring the Camera RS-232C controlCV-A11 RS-232C command list Useful commandsCamera Control Tool for CV-A11 Selecting termination of HD/VD input signals Internal Switch and Jumper Settings1. HD/VD input-output selection Specifications Spectral SensitivityAppendix WEN out on pin 6 on 6 pin connectorCV-A11 emulating CV-M10 interfacing Precautions Typical CCD CharacteristicsUsers Record Camera type CV-A11 Revision Revision a Serial No ……………