FB_BA_MultiCalcREAL32

The multi-calculation function block FB_BA_MultiCalcREAL32 exists for the variable type REAL.

In enabled state (bEn = TRUE), the function block determines the following from the input values aVal:

the maximum value of all inputs fMax
the input at which this maximum value is applied nMaxActv
the minimum value of all inputs fMin
the input at which this minimum value is applied nMinActv
the average of all inputs fAvrg
the sum of all inputs fSum
the difference between the maximum and minimum value fDiff

If not all inputs are to be calculated, the number can be limited by an entry at nNumOfElem: with nNumOfElem= 6, for example, the calculations are performed only for the first six entries of aVal.
An entry greater than 32 is automatically limited to 32, an entry less than 1 is automatically limited to 1.

Sample:

Inputs	Output
bEn = TRUE	fMax = 32
aVal[1] = 32	nMaxActv = 1
aVal[2] = 17	fMin = 5
aVal[3] = 5	nMinActv = 3
aVal[4] = 9	fAvrg = 18.5
aVal[5] = 16	fSum = 111
aVal[6] = 32	fDiff = 27
aVal[7] = 25
aVal[8] = 44
nNumOfElem = 6

If bEn = FALSE, 0 is output at all outputs.

Inputs

VAR_INPUT
  bEn         : BOOL;
  aVal        : ARRAY [1..???] of REAL;
  nNumOfElem  : UDINT;
END_VAR

Name	Type	Description
bEn	BOOL	Activation of the block function.
aVal	ARRAY OF REAL	Field with the values to be calculated.
nNumOfElem	UDINT	Number of input values to be used for the calculation.

Outputs

VAR_OUTPUT
  fMax        : REAL;
  nMaxActv    : UDINT;
  fMin        : REAL;
  nMinActv    : UDINT;
  fAvrg       : REAL;
  fSum        : REAL;
  fDiff       : REAL;
  bErr        : BOOL;
END_VAR

Name	Type	Description
fMax	REAL	Maximum value of all inputs.
nMaxActv	UDINT	Input at which the maximum value is present.
fMin	REAL	Minimum value of all inputs.
nMinActv	UDINT	Input at which the minimum value is present.
fAvrg	REAL	Average value of all inputs
fSum	REAL	Sum of all inputs
fDiff	REAL	Difference between maximum and minimum value.
bErr	BOOL	This output is switched to TRUE if the parameters entered are erroneous.

Requirements

Development environment	Required PLC library
TwinCAT from v3.1.4024.22	Tc3_BA2 from v5.2.5.0