Specifications

Chapter 14. Statement Reference
276
• If the BHT reads a bar code successfully, the indicator LED for reading confirma-
tion will illuminate in green. The BHT-5000/BHT-6000/BHT-6500/BHT-7000/BHT-
7500 may activate or deactivate the indicator LED. The BHT-6500/BHT-7000/
BHT-7500 may activate or deactivate the beeper and vibrator function.
• A bar code read will be decoded and then transferred to the barcode buffer. In the
BHT-3000, if the decoded data does not satisfy the reading conditions*, then the
reading confirmation LED will illuminate in red and no data will be transferred to
the barcode buffer.
(*The reading conditions include the number of digits, a check digit, the type of the
leading character, and start/stop characters.)
• Only a single bar code device file can be opened at a time. The total number of
files which can be opened at a time is 16 including data files and communications
device files.
• The BHT-6000/BHT-6500/BHT-7000/BHT-7500 cannot open the bar code device
file and the optical interface of the communications device file concurrently. If you
attempt to open them concurrently, a run-time error will occur. The BHT can open
the bar code device file and the direct-connect interface concurrently.
• The name of the bar code device file,
BAR, may be in lowercase.
OPEN "bar:" AS #10 CODE "A"
• Alphabet letters to be used for readmode, beepercontrol, LEDcontrol
and readcode may be in lowercase.
• Up to eight
readcodes can be specified.
• If you specify more than one condition to a same read code, all of them are valid.
The sample below makes the BHT read both of the 6- and 10-digit ITF codes.
OPEN "BAR:" AS #1 CODE "I:6","I:10"
OPEN "BAR:" AS #1 CODE "I:6,10"
(For the BHT-6500/BHT-
7000/BHT-7500)
■
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)
OPEN "BAR:M" AS #7 CODE "A"
Only while you hold down the trigger switch
*1
, the illumination LED (laser
source
*2
) lights and the BHT can read a bar code.
In the BHT-3000/BHT-4000/BHT-5000/BHT-6000, even if the bar code device
file is closed, the illumination LED does not go off so long as the trigger
switch
*1
is held down.
In the BHT-6500/BHT-7000/BHT-7500, if the bar code device file is closed
when the trigger switch
*1
is held down, the illumination LED (laser source
*2
)
will go off.
Until the entered bar code data is read out from the barcode buffer, pressing
the trigger switch
*1
cannot turn on the illumination LED (laser source
*2
) so that
the BHT cannot read the next bar code.
*1
In the BHT-6000/BHT-6500/BHT-7000/BHT-7500, the trigger switch function is assigned to the
magic keys.
*2
The BHT-6500/BHT-7500 uses a laser source.