Chapter 5: Trigger; Continuous Trigger; I/O Trigger - Delta DFS150-485 User Manual

Chapter 5
Trigger
The type of the trigger can only be set in slave mode. This chapter describes the behavior of
Trigger Source.
Please refer to Figure 14. Valid trigger to make a valid trigger.
Command Trigger and I/O Trigger cannot be used until status (as shown in Figure 15. Invalid
Trigger) change to Scan state.

5.1 Continuous Trigger

Continuous Trigger Mode uses ambient light and scan engine illumination to detect barcodes. The
LEDs remain dim until a barcode is presented to the scan engine, then the aimer turns on and the
LEDs turn up to read the code. If the light level in the room is not high enough, Continuous Trigger
Mode may not work properly.

5.2 I/O Trigger

I/O trigger must refer to OUT0 - ready signal to make a valid trigger. When Input receives falling
edge and trigger is bigger than 1ms (refer to Figure 14. Valid trigger), the scan engine will
continuous scan until either trigger timeout (30,000ms), or the barcode is decoded successfully.
DFS150-485 2D Fixed Scanner User Guide

Chapter 5: Trigger

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