Basler acA2040-55 User Manual

AW00123409000 Features
Basler ace USB 3.0 221
Synchronous and Asynchronous Sequencer Set Advance
The mechanisms for sequencer set advance vary between sequencer trigger sources:
 The triggers from some sequencer trigger sources only select the next sequencer set and the
loading into the active set occurs with the subsequent frame start trigger.
 The triggers from the other sequencer trigger sources select and load the next sequencer set.
The mechanisms are presented in greater detail in the following table and sections:
Sequencer Trigger Sources and Sequencer Set Advance
Two different types of trigger sources are available for advancing from one sequencer set to the
next:
 When a trigger source for a so-called synchronous trigger is selected the trigger will select
the next sequencer set but the actual advance to the next sequencer set will happen with the
next frame start trigger. Each sequencer set advance is therefore closely tied to a frame start
trigger and will accordingly be synchronous to the frame start trigger.
The sequencer trigger sources for synchronous triggers are Line 1, Line 3, Line 4, frame start,
and Counter 2 End (see also Section 7.7.2.2 on page 219).
 When a trigger source for a so-called asynchronous trigger is selected the advance to the
next sequencer set will immediately be initialized by the trigger, but will happen with some
unspecified delay. The sequencer set advance is therefore not tied to frame start triggers and,
accordingly, will be asynchronous to the frame start trigger.
The sequencer trigger sources for asynchronous triggers are Software Signal 1, Software
Signal 2, Software Signal 3 (see also Section 7.7.2.2 on page 219).
Sequencer
Trigger Source
Selects Next
Sequencer Set
Loads Next
Sequencer Set
Into the Active Set
Frame Start
Trigger Loads Next
Sequencer Set
Into the Active Set
Type of Sequencer
Trigger Source
for
Path 0
for
Path 1
Sync. Async.
Line 1
•• • •
Line 2
•• • •
Line 3
•• • •
Software Signal 1
•• • •
Software Signal 2
•• • •
Software Signal 3*
•• • •
Counter 2 End
•••
Frame Start
•••
Table 49: Sequencer Trigger Sources by Path and Related Mechanism for Sequencer Set Advance.
* Not available on acA1920-155, acA2040-55, acA2040-120, acA2440-35, and acA2440-75 cameras.

Basler acA2040-55 Specifications

General

Brand	Basler
Model	acA2040-55
Category	Digital Camera
Language	English