6 - 4 SE4750 Integration Guide
Recommended Procedures
The following trigger mode procedures describe the recommended transaction sequence between a host and the
SE4750. These transaction sequences use discrete commands for clarity. Replace any set of discrete commands
with a multi-command EXECUTE_SCRIPT to improve throughput.
Normal Decode Mode
Level Trigger Mode Procedure
The system is initialized as follows:
•
The host sends the Aim Off command.
•
The host sends the Illumination Off command.
•
The host sends the Acquisition Stop command.
•
The host sends the Barcode Decode mode command.
•
The SE4750 optimizes the image output for bar code decoding.
•
The SE4750 enters standby mode (or low power mode if enabled).
Upon a trigger pull:
•
The host sends the Illumination On command.
•
The SE4750 exits standby mode (or low power mode if enabled).
•
The host sends the Aim On command.
•
The host sends the Acquisition Start command.
•
The SE4750 begins outputting images.
•
The host attempts to decode the images.
Upon a good decode or trigger release:
•
The host sends the Acquisition Stop command.
•
The SE4750 stops outputting images.
•
The host sends the Aim Off command.
•
The host sends the Illumination Off command.
•
The SE4750 enters standby mode (or low power mode if enabled).
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