Teledyne ProEM Series, System Manual

Page: 91 / 162

Chapter 6 Advanced Topics 91
6.1.2 Free Run {No Response}
In this mode, there is no external triggering {or the camera is ignoring external triggers}
and all settings are read from the setup parameters, making the duration of each
exposure time constant and the interval times between exposures constant. See
Figure 6-2 .
Figure 6-2: Free Run Timing Diagram
6.1.3 External Sync {Readout Per Trigger}
In this mode, each frame in a sequence requires a trigger. Each frame is exposed for the
length of time entered into the software and is then read out. If a trigger arrives during
the exposure-readout of the previous frame, it is ignored. See
Figure 6-3 .
Figure 6-3: External Sync Timing Diagram
For a sequence of one frame, bulb mode and trigger-first mode are the same. The
shaded areas denote the idle time between exposures.
Exposure
Read Out
#1 #2 #3 #4
#1 #2 #3 #4
4
4
11-
01
26
_0
04
7
Ignored
Trigger In
Exposure
Read Out
#1 #2 #3 #4
#1 #2 #3 #4
4
4
11
-01
26
_
004
8