Continuous Sound Player

[joko markono]

Hi,

I need to play an alarm sound continuously. at the moment the sound will stop after a cycle.
please help.

[Archie]

How are you playing the sound currently?

[joko markono]

There is an address from plc program which is triggered by certain condition i.e. high or low value.

[Archie]

Are you using the SoundPlayer component or writing code?

[joko markono]

The component from AHMI toolbox.

[Godra]

Try using the attached modified version of the SoundPlayer.

Remove the current SoundPlayer component from the form, save and close the form, replace the stock version in the AdvancedHMIControls/Components folder with the modified one, rebuild the solution.

The modified version only has 2 triggers, PositiveChange and NegativeChange (AnyChange was removed) and a new LoopSound property.
The change of value will start/stop sound playback when the LoopSound property is set to True, otherwise it will play sound only once.

[joko markono]

i will. hopefully the sound continuously play in loop. thanks.

[joko markono]

i found the easiest solution:

1. in the solution explorer, go to Controls>Components>SoundPlayer.vb
2. right click SoundPlayer.vb>view code
3. expand the Events and see the Private Sub PlaySound()
4. Change the player.Play() to player.PlayLooping()
5. Rebuild and Save the project.

[Godra]

How do you stop the sound playback?

[joko markono]

that will be from the PLC program.
so at the moment i have a BarLevel indicator with high and low setting.
if above high and below low limit, the sound alarm will activate (program in the PLC).

did i miss out anything? please let me know.