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■ Readmode
The BHT supports four read modes--the momentary switching mode, the auto-off mode, the alternate
switching mode, and the continuous reading mode, which can be selected by specifying M, F, A, and C to
readmode, respectively.
□ Momentary switching mode (M)
Only when you hold down the trigger switch, the illumination LED lights and the BHT can read a
barcode.
Until the entered barcode data is read out from the barcode buffer, pressing the trigger switch cannot
turn on the illumination LED so that the BHT cannot read the next barcode.
[Ex]
BHT_EnableBar (TEXT ("M"), TEXT ("A, I:4-99, M:1-99, N:3-99, L:1-99, K:1-99, H:1-99" ) )
□ Auto-off mode (F)
If you press the trigger switch, the illumination LED comes on. When you release the switch or when
the BHT completes barcode reading, then the illumination LED will go off. Holding down the trigger
switch lights the illumination LED for a maximum of 5 seconds.
While the illumination LED is on, the BHT can read a barcode until a barcode is read successfully or
the barcode devices file becomes closed.
If the illumination LED goes off after 5 seconds from when you press the trigger switch, it is necessary
to press the trigger switch again for reading a barcode.
Once a barcode is read successfully, pressing the trigger switch cannot turn on the illumination LED
and the BHT cannot read the next barcode as long as the entered barcode data is not read out from
the barcode buffer.
[Ex]
BHT_EnableBar (TEXT ("F"), TEXT ("A, I:4-99, M:1-99, N:3-99, L:1-99, K:1-99, H:1-99" ) )
□ Alternate switching mode (A)
If you press the trigger switch, the illumination LED comes on. Even if you release the switch, the
illumination LED remains on until the barcode device file becomes closed or you press that switch
again. While the illumination LED is on, the BHT can read a barcode.
Pressing the trigger switch toggles the illumination LED on and off.
Once a barcode is read successfully, pressing the trigger switch turns on the illumination LED but the
BHT cannot read the next barcode as long as the entered barcode data is not read out from the
barcode buffer.
[Ex]
BHT_EnableBar (TEXT("A"), TEXT("A,I:4-99,M:1-99,N:3-99,L:1-99,K:1-99,H:1-99"))
□ Continuous reading mode (C)
If this mode is specified, the BHT turns on the illumination LED and keeps it on until the barcode device
file becomes closed, irrespective of the trigger switch.
While the illumination LED is on, the BHT can read a barcode.
Once a barcode is read successfully, the BHT cannot read the next barcode as long as the entered
barcode data is not read out from the barcode buffer.
[Ex]
BHT_EnableBar (TEXT("C"), TEXT("A,I:4-99,M:1-99,N:3-99,L:1-99,K:1-99,H:1-99"))
In the momentary switching mode, alternate switching mode, or continuous reading mode, after you
read a low-quality barcode which needs more than one second to be read, keeping applying the
barcode reading window to that barcode may re-read the same barcode in succession at intervals of
one second or more.
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