JAI CV-M4+, M7+ CL, CV-M7+, M4+ CL Edge Pre-select Mode, Important notes on using this mode

CV-M4+/M4+CL, CV-M7+/M7+CL

6.5. Edge Pre-select Mode

The trigger leading edge will start the exposure H synchronous or H a-synchronous (HC=0, HC=1). The exposure stops and is read out after the shutter time selected. It can be the 10 steps in normal or 1056 steps in programmable. SM=0 or SM=1. This mode will operate with full and partial scanning and with V-binning (M4+ and M4CL+ only). Partial scanning and binning in combinations is not allowed.

In this mode the Restart Continuous Trigger mode (RC=1) can be activated. (By RS-232C and CL only). The camera is then running continuously, and it can be reset and restarted by the trigger pulse.

If smearless read out (SL=1) is used, the exposure starts with a delay 133H (5.23 msec.) after the trigger. An EEN pulse will indicate the active accumulation time, and a FEN pulse indicates that the resulting video is read out.

To use this mode:
Set function:	Trigger mode “Edge Pre-select”	TR = 1
	Shutter mode “Normal” or “Programmable”	SM=0, SM=1
	“Shutter Speed”	SH=0 through 9
	“Programmable exposure”	PE=0 through 1057
	“H synchronous trigger”	HC=0, HC=1
	“Restart Continuous Trigger”	RC=0, RC=1
	“Smearless readout”	SL=0, SL=1
	Polarity and other functions
Input:	Ext. trigger to LVDS/Camera Link or pin 10 on 12-pin connector.

Important notes on using this mode.

•The duration of the trigger should be >2H to <3V. (>72.64∝sec to <120msec).

•The minimum trigger interval should be >(exposure time + 1 frame). A new trigger must not be applied during the previous frame read out. (Before FEN is high).

•Smearless readout cannot be used together with Reset Continuous Trigger.

Fig. 20. Edge Pre-select

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