Basler GigE SERIES User Manual

Image Acquisition Control AW00089317000
130 Basler ace GigE
Guideline for Overlapped Operation with Trigger Width Exposure
If the camera is set for the trigger width exposure mode and you are operating the camera in a way
that readout and exposure will be overlapped, there is an important guideline you must keep in
mind:
You must not end the exposure time of the current frame acquisition until readout of the
previously acquired frame is complete.
If this guideline is violated, the camera will drop the frame for which the exposure was just ended
and will declare a Frame Start Overtrigger event.
This situation is illustrated in Figure 69 with the camera set for the trigger width exposure mode with
rising edge triggering.
You can avoid violating this guideline by using the camera’s Frame Trigger Wait signal to determine
when exposure can safely begin and by properly setting the camera’s Exposure Overlap Time Max
Abs parameter.
For more information about
 the Frame Trigger Wait signal and the Exposure Overlap Time Max Abs parameter, see
Section 7.10.4 on page 140.
 trigger width exposure, see Section 7.4.3.2 on page 104.
Frame Acquisition N
Exposure Readout
Frame Acquisition N+1
Exposure Readout
Exp
This exposure was ended too
early. The
frame will be dropped
and an overtrigger event declared.
Time
Frame Acquisition N+3
Exposure Readout
ExFSTrig
Signal
Fig. 69: Overtriggering Caused by an Early End of Exposure

Basler GigE SERIES Specifications

General

Interface	GigE
Lens Mount	C-Mount, CS-Mount
Sensor	CMOS
Mount	C-mount, CS-mount
Power Supply	Power over Ethernet (PoE)
Dimensions	Varies by model
Weight	Varies by model
Operating Temperature	Varies by model