Panel Offline

Comments

• DHawthorne Junior Member

  April 2008

  Panels generate an online and offline event. Just make a DATA_EVENT for the panel with those handlers.
  
  However, to avoid the level being sent to zero, you will probably be better served by combining your panel with a virtual, and using the virtual instead. Virtuals never go off line unless the master shuts down.

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• Marc Scheibein Junior Member

  April 2008

  Other way to prevent this:

  DEFINE_DEVICE
  dvPANEL 		= 128:1:0
  
  
  DEFINE_VARIABLE
  INTEGER nBARGRAPHVALUE		// the active bargraph value
  
  
  DEFINE_START
  // we will NOT use a CREATE_LEVEL to Bargraph 1,
  // because if the panel goes OFFLINE, the bragraph value goes to 0
  
  
  DEFINE_EVENT
  LEVEL_EVENT[dvPANEL,1] // Bargraph 1
  {
  	IF(DEVICE_ID(dvPANEL)) // only if Panel Device is online
  	{
  		nBARGRAPHVALUE = LEVEL.VALUE // take Bargraph value
  		// send nBARGRAPHVALUE to any other device 
  	}
  }
  
  DATA_EVENT[dvPANEL]
  {
  	ONLINE:
  	{
  		SEND_LEVEL dvPANEL,1,nBARGRAPHVALUE // resend latest value to the bargraph
  	}
  }
  
  
  DEFINE_PROGRAM
  
  
  
  

  DATA_EVENT ONLINE/OFFLINE has a higher priority as a LEVEL_EVENT[]. Because of this, The DEVICE_ID(dvPANEL) fails and the LEVEL.VALUE, which falled to 0, is not executed.

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