FB_BA_MultiCalc_XX

The multi-calculation function blocks exist for the variable types LREAL and REAL, although they all have the same functionality.
The function block FB_BA_R08 is described as an example.

In enabled state (bEn=TRUE), the function block determines the following from the 8 input values r01...r08:

• the maximum value of all inputs rMax
• the input at which this maximum value occurs udiMinActv
• the minimum value of all inputs rMin
• the input at which this minimum value occurs udiMinActv
• the mean value of all inputs rAvrg
• the sum of all inputs rSum
• the difference between the maximum and minimum value rDiff

If not all inputs are used for the calculation, the number can be limited via an entry at udiNum: udiNum=6, for example, can be used to limit the calculations to inputs r01 to r06.
Any entry greater than 8 is automatically limited to 8, any entry less than 1 is automatically set to 1.

Sample:

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

VAR_INPUT

bEn     : BOOL;
r01     : REAL;
r02     : REAL;
r03     : REAL;
r04     : REAL;
r05     : REAL;
r06     : REAL;
r07     : REAL;
r08     : REAL;
udiNum  : UDINT;

bEn: Activation of the block function.

r01...r08: Input values to be used for the calculation.

udiNum: Number of input values to be used for the calculation.

VAR_OUTPUT

rMax        : REAL;
udiMaxActv  : UDINT;
rMin        : REAL;
udiMinActv  : UDINT;
rAvrg       : REAL;
rSum        : REAL;
rDiff       : REAL;

rMax: Maximum value of all inputs.

udiMaxActv: Input at which the maximum value is present.

rMin: Minimum value of all inputs.

udiMinActv: Input at which the minimum value is present.

rAvrg: Mean value of all inputs.

rSum: Sum of all inputs.

rDiff: Difference between maximum and minimum value.

Requirements