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Operational Reference
Genie_TS_Series GigE Vision Camera
I/O Module Block Diagram
Trigger Mode Details
Genie TS image exposures are initiated by an event. The trigger event is either the camera's
programmable internal clock used in free running mode, an external input used for synchronizing
exposures to external triggers, or a programmed function call message by the controlling
computer. These triggering modes are described below.
Free running (Trigger Mode=Off)
: The Genie free-running mode has programmable internal
timers for frame rate and exposure period. Frame rate minimums, maximums, and increments
supported are sensor specific. Maximum frame rates are dependent on the required exposure.
This always uses Synchronous mode where exposure is aligned to the sensor horizontal line
timing.
External trigger (Trigger Mode=On)
: Exposures are controlled by an external trigger signal
where the specific input line is selected by the
Trigger Source
feature. External signals are
isolated by an opto-coupler input with a time programmable debounce circuit.
Trigger Source Types
Trigger Source=Software
: An exposure trigger is sent as a control command via the
Ethernet network connection. Software triggers can not be considered time accurate due to
network latency and sequential command jitter. But a software trigger is more responsive than
calling a single-frame acquisition since the latter must validate the acquisition parameters and
modify on-board buffer allocation if the buffer size has changed since the last acquisition.
Trigger Source=Timer1End Event:
The Timer1 End Event is used as the internal trigger
for information on those features.
Trigger Source=Counter1End Event
: The Counter1 End Event is used as the internal trigger
source.
Trigger Line Polarity:
For line signals, a rising edge signal is suggested to minimize the time
it takes for the opto-coupler to change state.
