Triggeractivation; Initial Trigger Activation Set - IAI AM-200GE User Manual

9.2.4 TriggerActivation

This determines the behaviour of the trigger.
RisingEdge：
FallingEdge：
LevelHigh：
LevelLow：
Note: When TriggerWidth is used, TriggerActivation should be set at either LevelHigh
or LevelLow.
Timed
TrigegrWidth
Timed-JAI PIV
Timed-JAI Pre-Dump

9.2.4.1 Initial Trigger Activation Set

The hardware used as TTL input through D-SUB 9 pin for GPIO, is designed as the
circuit to minimize the influence of noise. Therefore, the input polarity is set at
either Hi-Active or Low-Active and on every time if High or Low is selected, the input
polarity is automatically changed. However, just after the power is ON, it is not
possible to recognize the initial status on TTL signal, it is determined by the trigger
activation setting of function used TTL signal and initialized accordingly.
However, as there are several functions used TTL signal and each has own trigger
activation setting, the camera initializes according to its priority.
The initial Trigger Activation Set function forces to set the input polarity after the
power is ON and the user can always use the fixed setting regardless of its priority.
The following is the selection.
Hi-Active:
Low-Active:
Auto(Default):
The following table shows the priority of the trigger activation at AUTO setting.
Priority
1
2
3
4
5
6
7
8
AM-200GE / AB-200GE
Initiate at the signal rising edge
Initiate at the signal falling edge
Initiate during the signal high level
Initiate during the signal low level
RisingEdge
○
×
○
○
At the first time if the power is ON, detect the "LOW to HIGH" of
the TTL input.
At the first time if the power is ON, detect the "HIGH to LOW" of
the TTL input.
At the first time if the power is ON, use the trigger activation
setting of the first priority function.
Acquisition Start Trigger
Acquisition End Trigger
Frame Start Trigger
JAI Acquisition Transfer Start
Timer Trigger Source(Timer1)
Counter Trigger Source(Counter1)
Counter Event Source(Counter1)
Counter Reset Source(Counter1)
FallingEdge LevelHigh
○
×
○
○
Function
- 49 -
LevelLow
× ×
○ ○
× ×
× ×