Figure 29. Gain Screen
Note: This feature is not effective on the emulator.
10.4 Trigger
Main Menu > Imager > Trigger
A trigger is a signal that tells the iVu BCR to capture a barcode image and decode it. Five trigger options are available:
Continuous Scan, External - Single, External - Gated, Industrial Ethernet Only, or Command.
10.4.1 Continuous Mode
In Continuous mode, the sensor uses internal timing to continuously capture images. For each captured image, the sensor
scans through the configured barcode types looking for the specified number of barcodes. If the specified number of
barcodes is found, a Read event occurs. If the specified number of barcodes is not found, the sensor captures another
image and repeats the scan. Two parameters fine-tune how Continuous Scan mode operates:
• Same Code Reject Time (set at the bottom of Main Menu > Imager > Trigger)—The time, in seconds, that must
elapse before the scanner reports a previously scanned symbol again. A different symbol is read immediately
• Scan Time Limit (Main Menu > Inspection > Barcode > Scan Time Limit)—limits the amount of time the sensor
attempts to scan for barcodes on an image
Note: A No Read condition will not occur in Continuous mode as another image capture and scan
automatically follows.
10.4.2 External-Single Mode
In External-Single mode, the sensor depends on an external trigger. For each trigger, the sensor captures an image and
executes one scan through the configured barcode types looking for the specified number of barcodes. This trigger mode
uses the Scan Time Limit parameter (Main Menu > Inspection > Barcode > Scan Time Limit) to limit the amount of time the
sensor attempts to scan for barcodes on an image.
iVu Plus BCR Gen2 Series Sensor
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