FB_Statistics - General Information

Overview

Type:

Function block

Available as of:

V1.0.3.0

Inherits from:

-

Implements:

-

Versions:

Current version

Task

Maximum, minimum, average and variance of measured values.

Description

The function calculates minimum, maximum, expected value (=average) and variance (=square of the default deviation) of the input series of measurements. The series of measurements is extended by one value each time the Put method is called up. The series of measurements can be deleted by calling up the Reset method.

Interface

NOTE: POU is not addressable!

The POU must not be called up.

The function block can be used by calling it up over methods and properties.

Methods

Name

Description

Put

Entering a new measured value

Reset

Deleting the existing list of measured values

Properties

Name

Data type

Accessing

Description

diCount

DINT

Read

Number of measured values entered so far

lrAverage

LREAL

Read

Mean value of measured values entered so far

lrMaximum

LREAL

Read

The highest measured value entered so far

lrMinimum

LREAL

Read

The lowest measured value entered so far

lrVariance

LREAL

Read

Value for the distribution of the measured values entered so far