Argox PA-20 Basic Programming Manual Manual do Utilizador Página 51

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PT-Basic Programming Manual Ver. 1.00 50/143
3.8 Beeper commands
BEEP
Purpose
To assign a beeper sequence to designate beeper operation.
Syntax
BEEP(freq%, duration% {, freq%, duration%})
Example
BEEP(99,30,0,10,88,30,0,10,66,30,0,0)
Description
freq% is an integer variable, indicating the value of Beep
frequency ( 76000 / Actual Frequency Desired ).
A beep frequency is an integer used to specify the frequency
(tone) when the beeper been activated. The actual frequency
that the beeper gives is not the value specified to the beep
frequency. It is calculated by the following formula.
For instance, to get a frequency of 2000Hz, the value of beep
frequency should be 38. If no sound is desired (pause), the
beep frequency should be set to 0. A beep with frequency 0
does not terminate the beeper sequence. Suitable frequency for
the beeper ranges from 1 to 2700Hz, while peak volume is at
around 2000Hz.
Duration% is an integer variable, indicating the value of
beeping duration, which is specified in units of 10 ms.
STOP BEEP
Purpose
To terminate beeper sequence.
Syntax
STOP BEEP
Example
BEEP(99,100,0,30,88,100,66,100,0,0)
WAIT(200)
STOP BEEP
Description
The STOP BEEP statement terminates the beeping
immediately if there is a beeper sequence in progress.
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