Pwr.DataValue()

Type: INSTANCE FUNCTION

Purpose: Extract a single data item from a PWR object.

The data item is taken from the i^th data point and the j^th data column. If no data have been taken, the returned value is NIL. A new DATACOL object is automatically created by the call to Pwr.DataCol(). It is usually transient, existing only for one function call.

Usage:

Data Value = Pwr.DataValue(PointNum,ColNumber)

Result	REAL or	The returned value.
	NIL	No data acquired yet.
PointNum	INDEX	Point number, zero-based. If PointNum is out of range, a value from the last or acquired point is returned.
	NIL	Always return a value from the last acquired point.
ColNumber	INDEX	A code identifying the column to be used. Use the following predefined constants: PWR_T = Time PWR_Vf = Applied Voltage PWR_Vu = Uncompensated Voltage PWR_Im = Measured Current PWR_Pwr = Measured Power PWR_R = Measured Resistance PWR_Temp = Measured Temperature PWR_IERange = IE Range used during measurement PWR_Ach = Measured Voltage Aux Channel PWR_Sig = Signal sent to Control Amp PWR_Over = Overload column