Configuration
Power Panel FT50 User's manual V1.19
87
7.3.3.3 Outputting an audio signal
Necessary function of library
AsRfbExt
:
RfbExtStartProcess()
Function
RfbExtStartProcess()
is used to start the
beep
process and output an audio signal on the Power Panel.
Here, parameter
pcmdLine
is used to call the command line process as follows:
Call syntax
beep [frequency] [duration]
Parameter
frequency ... Frequency of the audio signal in hertz [Hz].
Valid range: 10 - 15000
duration
... Duration of the audio signal in milliseconds [ms].
Valid range: 10 - 500
If a value is not specified, the default setting is used.
Example
pcmdLine:
beep 880 400
An audio signal with 880 Hz and duration of 400 ms is output.
Implementation
The VNC-based HMI application can output an audio signal using function
RfbExtStartProcess()
in order to clearly illustrate certain
states or actions.
Calling
beep
with specific parameters does not change the default setting for the device.
The default audio signal setting is configured on service page
Audio
or in Automation Studio (see section
Information:
Emitting an audible tone with
beep
is always done independently of the setting on service page
Audio
(see
"Service page Audio" on page 64
).
