Basic Operation and Features
Basler A500k Series 3-23
PRELIMINARY
3.3.4.3 Free-run Mode with Synchronous Timing 1
Figure 3-21: Free-run, Programmable Mode - Exposure Start and Stop with Frame Valid High
If the exposure starts and ends while Frame Valid is high (see Table for values n to z):
• The actual start of exposure can be x µs later than the falling of the internal control signal.
• Actual length of exposure time = n - y + z
The actual length of exposure time can only occur in multiples of w µs.
A504k/kc A501k/kc
n exposure set by Timer 1
x
1 µs to 3 µs 6.9 µs to 20.2 µs
y
≤ 2 µs ≤ 5 µs
z
≤ 2 µs ≤ 5 µs
w
2 µs 13.2 µs
Exposure Time
(Timer 1)
Frame
Valid
FlashOut
Line
Valid
Internal
Control
Signal
Internal Control Signal Period
Timer 2
6.9 µs...20.2 µs
4 µs...6µs (A504k/kc)
2µs or 3µs (A504k/kc)
26.2 µs... 39.8 µs (A501k/kc)
13.5 µs or 20.2 µs (A501k/kc)
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