FB_CTRL_ARITHMETIC_MEAN

FB_CTRL_ARITHMETIC_MEAN 1:

FB_CTRL_ARITHMETIC_MEAN 2:

FB_CTRL_ARITHMETIC_MEAN 3: VAR_INPUT

VAR_INPUT
    fIn            : FLOAT;
    fManSyncValue  : FLOAT;
    bSync          : BOOL;
    eMode          : E_CTRL_MODE;
    bHold          : BOOL;
END_VAR

Name

Type

Description

fIn

FLOAT

Input value for the mean value filter

fManSync
Value

FLOAT

Input value to which the mean value filter can be set, or that is issued at the output in manual mode.

bSync

BOOL

A rising edge at this input sets the mean value filter to the value "fManSyncValue".

eMode

E_CTRL_MODE

Input that specifies the operation mode of the function block.

bHold

BOOL

A TRUE at this input will hold the internal state (and therefore also the output) constant at its current value, independently of the input value.

FB_CTRL_ARITHMETIC_MEAN 4: VAR_OUTPUT

VAR_OUTPUT
    fOut      : FLOAT;
    eState    : E_CTRL_STATE;
    eErrorId  : E_CTRL_ERRORCODES;
    bError    : BOOL;
END_VAR

Name

Type

Description

fOut

FLOAT

Output of the mean value filter

eState

E_CTRL_STATE

State of the function block

eErrorId

E_CTRL_ERRORCODES

Supplies the error number when the output bError is set.

bError

BOOL

Becomes TRUE, as soon as an error occurs.

VAR_IN_OUT

VAR_IN_OUT
    stParams    : ST_CTRL_ARITHMETIC_MEAN_PARAMS;
END_VAR

Name

Type

Description

stParams

ST_CTRL_
ARITHMETIC_
MEAN_PARAMS

Parameter structure of the mean value filter

stParams consists of the following elements:

TYPE
ST_CTRL_ARITHMETIC_MEAN_PARAMS:
STRUCT
    tCtrlCycleTime : TIME := T#0ms;
    tTaskCycleTime : TIME := T#0ms;
END_STRUCT
END_TYPE

Name

Type

Description

tCtrlCycleTime

TIME

Cycle time with which the control loop is processed. This must be greater than or equal to the TaskCycleTime. The function block uses this input value to calculate internally whether the state and the output values have to be updated in the current cycle.

tTaskCycleTime

TIME

Cycle time with which the function block is called. If the function block is called in every cycle this corresponds to the task cycle time of the calling task.