Teledyne TS-C2500, User Manual

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Operational Reference Genie_TS_Series GigE Vision Camera
External Trigger Programmable Exposure
 Also known as “Edge Pre-select” exposure. See the timing diagram below.
 An external trigger edge initiates the exposure process.
 The user programmable delay (exposureDelay) from valid trigger edge to start of exposure is
camera model specific.
 Supports " Synchronous Mode " (on page 57) timing for fastest possible frame rates. Start of
exposure is aligned on the next horizontal line while the exposure duration period is in 1µs
steps. Exposure and sensor readout can be concurrent.
 Supports " Reset Mode " (on page 57) timing. Exposure duration is in 1µs steps. Exposure and
sensor readout must be sequential, limiting the maximum frame rate.
 Exposure duration is programmable from the model dependent minimum to 16 seconds (in 1 μ s
steps).
 Any external trigger received before the last exposure is ignored.
Example Timing
Frame Inactive
FrameTrigger Inactive
Frame Inactive
FrameTrigger Active
Exposure(1)
ReadOut (1)
Exposure
Delay
Exposure(2)
ReadOut (2)
Exposure
Delay
FrameTrigger Inactive
Programmable Synchronous Mode Exposure Timing
FrameActive (1)
Frame Inactive
FrameTrigger Inactive
TriggerDelay
FrameActive (2)
FrameTrigger Active
Exposure(1)
ReadOut (1)
Exposure
Delay
Exposure(2)
Exposure
Delay
Input Signal
Event
FrameTrigger Inactive
exposureAlignment=Reset
Invalid Frame Trigger Period
ValidFrameTrigger
Event
FrameTrigger Active
Invalid Frame Trigger Period TriggerDelay
Frame Inactive
Input Signal
Event (2)
Programmable Reset Mode Exposure Timing