FB_BACnet_Averaging_EX
Application
The function block FB_BACnet_Averaging can be used for read access to a BACnet object of type Averaging (AVG).
VAR_OUPUT
 | Variables are not included in the basic version of the function block. |
bReady : BOOL;
fAverageValue : REAL;
fMaximumValue : REAL;
fMinimumValue : REAL;
nValidSamples : UDINT;
nWindowSamples : UDINT;
nWindowInterval : UDINT;
tObjectID : T_BACnet_ObjectIdentifier:=16#FFFFFFFF; (*siehe Info*)
bError : BOOL;
nErrorId : UINT;
bReady: notification of general readiness. If this output is set, the other status outputs are valid (PresentValue, Overridden ...). If the output is FALSE, the corresponding function block "FB_BACnet_Device" does not report "Operational", or the function block instance was not linked correctly in the System Manager.
fAverageValue: current average value (see BACnet specification DIN EN ISO 16484-5 for BACnet object Averaging and property Average_Value).
fMaximumValue: largest sampled value (see BACnet specification DIN EN ISO 16484-5 for BACnet object Averaging and property Maximum_Value).
fMinimumValue: smallest sampled value (see BACnet specification DIN EN ISO 16484-5 for BACnet object Averaging and property Minimum_Value).
nValidSamples: number of valid values of the BACnet object (see BACnet specification DIN EN ISO 16484-5 for BACnet object Averaging and property Valid_Samples).
nWindowSamples: number of values sampled over the period of Window_Intervall (see BACnet specification DIN EN ISO 16484-5 for BACnet object Averaging and property Window_Samples).
nWindowInterval: period over which the values are averaged in full seconds (see also BACnet specification DIN EN ISO 16484-5 for BACnet object Averaging and property Window_Interval).
tObjectID: object ID of the BACnet object (object type and object instance).
bError: an error is pending.
nErrorId: see global constants (BACnet_Globals).
VAR_IN_OUT
Device : FB_BACnet_Device;
Device: Specification of the instance of the local corresponding BACnet server block. For each BACnet adapter one BACnet server is possible. See FB_BACnet_Adapter and FB_BACnet_Device for further information.