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4.3. Display LEDs and Beeper Control
A notification given to inform the operator that barcode reading has been performed successfully can be controlled
as follows. This is specified at the Scanner.RdMode property.
• Turn ON/do not turn ON display LEDs. (Default: Turn ON display LEDs.)
• Sound/do not sound beeper. (Default: Do not sound beeper.)
If set to "Turn ON display LEDs.", it will not be not possible to control the LEDs from the application while barcode
reading is enabled.
If set to "Do not turn ON display LEDs.", the LEDs can be controlled from the application, even while barcode
reading is enabled. As a result, actions such as the following are possible.
• The read barcode value is checked at the user program, and the blue LED is turned ON only when the barcode
is read correctly.
• The red LED is turned ON when a barcode is read etc.
If set to "Sound beeper.", the beeper is sounded when the barcode is read correctly.
By changing the Beep.Settings.Device value, it is possible to specify "Beeper only", "Vibrator" only, or "Beeper and
vibrator".
4.4. Barcode Data
Read barcode data is stored in the barcode buffer. The buffer is 99 characters in size and can store data for a
single input operation. Use the Scanner.Input method to read data from the barcode buffer.
The read barcode type and number of digits can be acquired. By checking the number of digits, it is possible to
check whether the read barcode data has been stored in the barcode buffer.
4.5. Check Digit Calculation
It is possible to calculate the barcode check digits. This function is used when adding check digits to a barcode
with no check digits.
Check digits in barcode data currently being read are automatically checked by specifying "With check digit" at the
Scanner.RdType property and enabling barcode reading.
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