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Piranha4 4K Camera Color User's Manual
03-032-20180-00
Teledyne DALSA
Exposure Modes in Detail
1. Internally Programmable Line rate and Internally Programmable Exposure Time (Default)
Line rate is the d om inant factor w hen ad ju sting the line rate or exp osu re tim e. When setting the line rate,
exp osu re tim e w ill d ecrease, if necessary, to accom m od ate the new line rate. When ad ju sting the
exp osu re tim e the range is lim ited by the line rate.
Note
:
The cam era w ill not set line p eriod s shorter than the read ou t p eriod .
GenICam parameters to set:
I / O Controls > Trigger Mode > Off
2. External Line Rate and External Exposure Time (Trigger Width)
In this m od e, EXSYN C sets both the line p eriod and the exp osu re tim e. The rising ed ge of EXSYN C m arks
the beginning of the exp osu re and the falling ed ge initiates read ou t. N ote:
GenICam parameters to set:
I / O Controls > Trigger Mode > On
Sensor Control > Exposure Mode > Trigger Width
Warning!
When ru nning external line rate and external exp osu re tim e, the line rate m u st not exceed 1 /
(exp osu re tim e + 1,500 ns). Und er these cond itions the exp osu re tim e w ill becom e ind eterm inate and
resu lt in im age artefacts. This is not the case w hen ru nning internal exp osu re control .
3. External Line Rate, Programmable Exposure Time
In this m od e, the line rate is set externally w ith the falling ed ge of EXSYN C generating the rising ed ge of
a p rogram m able exp osu re tim e.
GenICam parameters to set:
I / O Controls > Trigger Mode > On
Sensor Control > Exposure Mode > Ti med
