// tell it what datatype it should carry (which may NOT change during it's use),
// provide a proces value
// a timestamp.
//
// Example
// MyMetric : FB_Metric;
// MyMetric.Name := "Bool/B1"; // Choose a name which (static)
// MyMetric.Value := MyProcesValue(); // Provide a process value. Any proces value changes are detected and signaled for sending automaticly, you don't have to do anything special!
// MyMetric.TimeStamp := Time.Now(); // Provide a timestamp%
{attribute 'call_after_init'}
itfMetricOwner : IMetricOwner; // if this is a pool Metric, it will be set by the primary node. if not then attach it yourself to the correct Owner
END_VAR
VAR_OUTPUT
{attribute 'no_copy'}
itfMetric : IMetric := THIS^;
_NotifyThem : BOOL := FALSE; // TRUE if the Value is changed in regard of the previous stored value
// IElement
_itfPrev : IElement;
_itfNext : IElement;
_itfList : IList;
// IPropertyOwner
_Properties : LIST; // OF FB_Property
//IValue
_dataType : MetricDataType := MetricDataType.Unknown;
_uLint : ULINT;
_lReal : LREAL;
_WSTRING : WSTRING(gc_sparkplug.supported_string_lengths);
//BYTES VALUE IS NOT IMPLEMENTED
IF THIS^.itfMetricOwner <> 0 THEN
itfMetricOwner.RegisterMetric( THIS^ );
ELSIF THIS^.itfPrimaryHost <> 0 THEN
IF __QUERYPOINTER( itfPrimaryHost, pPrimary ) THEN
pPrimary^.RegisterMetric( THIS^ );
END_IF
END_IF