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48 Chapter 4: Matrox GatorEye feature reference
Feature name
EncoderLatchTriggerSource
(continued...)
Description
Feature value
EncoderNewClockwiseTick
ExposureEnd
ExposureStart
FrameEnd
FrameStart
FrameTrigger
LineEnd
LineGreenLED
Linen
LineRedLED
LineStart
LineTrig
Description
Specifies to use the rotary counter as the event source. The event
occurs when the next new clockwise pulse occurs after the rotary
counter has been decremented. For example, assume your rotary
encoder is connected to a conveyor belt. The conveyor belt stops when
the rotary counter is at 42. The stop forces the rotary encoder to
reverse by two pulses (back to 40). When the conveyor belt star ts up
again, the rotary encoder will start producing clockwise pulses again;
however, the rotary counter must reach the next new value (that is, 40
+2 +1 = 43) before the event occurs.
Specifies to use the exposure-end event.
Specifies to use the exposure-start event.
Specifies to use the frame-end event.
Specifies to use the frame-start event.
Specifies to use the frame-trigger event.
Specifies to use the row end event. The event occurs at the end of each
row in the grab.
Specifies to use the signal routed on the internal line that turns the
green element of the User LED on or off, as the signal source. Note that,
if both the green element and the red element are both on, the User LED
appears orange in color.
Use EncoderLatchActivation to specify the change of state on which to
report the value of the rotary counter.
Specifies to use the signal routed on Linen, where n is a value from 0
to 7, as the signal source. For more information relating to these lines,
refer to the Digital I/O and power connector subsection of the Matrox
GatorEye connectors section, in Appendix B: Technical Reference.
Use EncoderLatchActivation to specify the change of state on which to
report the value of the rotary counter.
Specifies to use the signal routed on the internal line that turns the red
element of the User LED on or off, as the signal source. Note that, if
both the green element and the red element are both on, the User LED
appears orange in color.
Use EncoderLatchActivation to specify the change of state on which to
report the value of the rotary counter.
Specifies to use the line start event. The event occurs at the beginning
of each row in the grab.
Specifies to use the signal routed on the Matrox GatorEye dedicated
trigger line.
Use EncoderLatchActivation to specify the change of state on which to
report the value of the rotary counter.
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