InitializeFunction

This FB initializes selected functions. Before, it needs to initialize itself, i.e. call the FB until the output bInitialized is true before using it for function initialization.

Syntax

Constructor:

InitializeFunction()

Execute main:

FB_Main()

FB_Main(
    ETcVnInitializableFunction eFunction,
    ULONGLONG                  nOptions,
    bool                       bStart
)

FB_Main(
    bool bStart
)

InitializeFunction 1: Inputs

Name

Type

Default

Description

eFunction

ETcVnInitializableFunction

 

Selects the function to initialize

nOptions

ULONGLONG

0

Selects initialization options for the function

bStart

bool

 

Function initialization is triggered by a rising edge at this input.

nTimeout

unsigned int

VISION_ADS_TIMEOUT

Indicates the time before the function is cancelled.

InitializeFunction 2: Outputs

Name

Type

Description

bBusy

bool

This output remains TRUE until the function block has executed a command, but at the longest for the duration supplied to the 'nTimeout' input. While bBusy = TRUE, no new command will be accepted at the inputs.

bError

bool

This output is switched to TRUE as soon as an error occurs during the execution of a command. The command-specific error code is contained in ‘nErrorId’. If the function block has a timeout error, 'bError' is TRUE and 'nErrorId' is 1861 (hexadecimal 0x745). Is reset to FALSE by the execution of a command at the inputs.

nErrorId

ULONG

Contains the ADS error code or the command-specific error code of the last executed command. Is reset to 0 by the execution of a command at the inputs.

Required License

TC3 Vision Base

System Requirements

Development environment

Target platform

PLC libraries to include

TwinCAT V3.1. 4024.44 or later

PC or CX (x64) with PL50, e.g. Intel 4-core Atom CPU

Tc3_Vision