46
Operational Reference
Genie Monochrome Series-GigE Vision Camera
Free-running Programmable Exposure Timing
External Trigger Programmable Exposure
Also known as “Edge Pre-select” exposure. See the timing diagram below.
The external trigger edge initiates the exposure process. The active external trigger edge can be selected as
either the low-high or high-low transition.
The delay from active trigger edge to start of exposure is programmable from 1
μ
s to 16 seconds (1
μ
s steps) .
Exposure duration is programmable from the sensor minimum (see Genie Sensor Overview) to 16 seconds (1
μ
s
steps).
Supports
"
Synchronous Mode
" on page 50
timing for fastest possible frame rates. Start of exposure is aligned
on the next horizontal line while exposure duration granularity is 1µs. Exposure and sensor readout can be
concurrent.
Supports
"
Reset Mode
" on page 51
timing. Exposure granularity is 1µs. Exposure and sensor readout must be
sequential, limiting the maximal frame rate.
Any external trigger received before the previous exposure is complete is ignored. An application can elect to
receive messages about ignored triggers. See
"
Events
" on page 69
.
