Example FB_BACnetRM_ReadPropertyEx

The following example shows the use of the FB_BACnetRM_ReadPropertyEx function block.

VAR
    fbClient : FB_BACnet_Client := (nDeviceInstance := 42,tReadCycleTime:=T#10S,nMaxParallelRequests:=255);
    fbDevice : FB_BACnetRM_Device := (Client:=fbClient);

    fbReadEx : FB_BACnetRM_ReadPropertyEx := (Client := fbClient);
    bReadLowLimitEx : BOOL;
    fLowLimitEx : REAL;
END_VAR
------------------------------------------------------------------
fbClient();
fbDevice();

// Read LowLimit using FB_BACnetRM_ReadPropertyEx
fbReadEx.bExecute := bReadLowLimitEx;
IF fbReadEx.bExecute THEN
    bReadLowLimitEx := FALSE;
    fbReadEx.pData:= ADR( fLowLimitEx ); 
    fbReadEx.nData:= SIZEOF( fLowLimitEx );
    fbReadEx.ePropID:= E_BACnet_PropertyIdentifier.PropLowLimit;
    fbReadEx.nObjInst:= 1;
    fbReadEx.eObjType:= E_BACnet_ObjectType.ObjAnalogInput;
END_IF
fbReadEx();