JAI RM-1405GE, Руководство пользователя

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RM/TM-1405GE Series
48 Configuring the Camera
5.8.5 Counters
The General Purpose Counter lets you maintain a count between 0 and 232-1 (long integer). You can
use different inputs to increment, decrement, or clear the counter value.
The General Purpose Counter outputs two separate signals that indicate when the count is equal to
and greater than the compare value that you set: Counter1Gt and Counter1Eq. These signals are
available on the Input lines in the Signal Routing Block.
CounterSelector : selects which counter to configure. There is only 1 counter called Counter1.
CounterDecrementEventSource : selects the events that will decrement the counter. This signal
comes from the Q16 pin of the PLC LUT.
Available options:
•
Off: no decrement events
•
PLC_Q16_RisingEdge: decrement when the signal goes from Low to High
•
PLC_Q16_FallingEdge: decrement when the signal goes from High to Low.
•
PLC_Q16_AnyEdge: decrement on any Falling or Rising Edge.
• PLC_Q16_LevelHigh: decrement when the signal is at the High section.
•
PLC_Q16_LevelLow: decrement when the signal is at the Low section.
CounterDuration : sets the value that the CounterValue will be compared to. When the CounterValue
and CounterDuration are equal, the Counter1Eq signal will go high and stay high as long as the values
are equal. When the CounterValue is greater than CounterDuration, the Counter1Gt signal will go
high.
CounterEventSource : selects the signal event type that will increment the counter. This signal comes
from the Q17 pin of the PLC LUT.
Available options:
•
Off: no increment events
•
PLC_Q17_RisingEdge: increment when the signal goes from Low to High
•
PLC_Q17_FallingEdge: increment when the signal goes from High to Low.
•
PLC_Q17_AnyEdge: increment on any Falling or Rising Edge.
•
PLC_Q17_LevelHigh: increment when the signal is at the High section.
•
PLC_Q17_LevelLow: increment when the signal is at the Low section.