Pulnix TMC-6700 Series Bedienungsanleitung PDF herunterladen (Seite 28)

Hardware

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INSPECTA hardware manual Rev 1.86 page 28

2.2.5.9 Rise- and fall times, opto inputs

All four opto inputs can be read by Inspectas driver software ( mvfg_ppin ()). Rise- and fall times

are not critical then.

Opto input 0 is also used as hardware trigger for cameras with asynchronous shutter. (mvfg_Snapx

( 4, x, x )). From Inspectas firmware IMP-Nr >700 (Inspecta-2/3/4A) and driver version > 3.07

(Inspecta-4D/C) this hardware trigger is edge triggered on the rising edge.(current starts flowing in

the opto couplers LED).

To avoid multiple triggering this input is synchronised with the cameras HD signal. Therefore the

pulse width of the trigger signal must be at least as long the cameras horizonzal time (typ. 64us). It

is recommended to keep rise and fall times less than 1 us.

With Inspecta-4D/C and linescan cameras, opto inputs 1 und 2 can be used as inputs for an

external encoder. Rise and fall times of these inputs must be less 1 us to avoid false counts.

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Pulnix TMC-6700 Series Bedienungsanleitung Seite 28