FB_ALY_Bitmask

The Bitmask module can be used to evaluate individual bits. To do this, the individual bits of the input value are output as Boolean values at the output.

Syntax

Definition:

FUNCTION_BLOCK FB_ALY_Bitmask
VAR_INPUT
    bPersistent: BOOL;
END_VAR
VAR_OUTPUT
    ipResultMessage: Tc3_EventLogger.I_TcMessage;
    bError: BOOL;
    bNewResult: BOOL;
    bConfigured: BOOL;
END_VAR

FB_ALY_Bitmask 1: Outputs

Name

Type

Description

ipResultMessage

I_TcMessage

Contains more detailed information on the current return value. For this special interface pointer, it is ensured internally that it is always valid/assigned.

bError

BOOL

The output is TRUE if an error occurs.

bNewResult

BOOL

When a new result has been calculated, the output is TRUE.

bConfigured

BOOL

Displays TRUE if the function block is successfully configured.

FB_ALY_Bitmask 2: Methods

Name

Definition location

Description

Call()

Local

Method for calculating the outputs for a specific configuration.

Reset()

Local

Resets all internal states or the calculations performed so far.

SetChannelValue()

Local

Method for passing values to the algorithm.

Example

VAR
    fbBitmask : FB_ALY_Bitmask;
    nInput : BYTE := 2#10101100;
    aBits : ARRAY[1..8] OF BOOL;
END_VAR
// Call algorithm
fbBitmask.SetChannelValue(nInput);
fbBitmask.Call(ADR(aBits), SIZEOF(aBits));

Requirements

Development environment

Target platform

Plc libraries to include

TwinCAT v3.1.4024.0

PC or CX (x64, x86)

Tc3_Analytics

Further Information