ItpLoadProg

ItpLoadProg 1:
ItpLoadProg 2:

Outdated version

The sole purpose of the function block is to ensure compatibility with existing projects. For new projects please use the function block ItpLoadProgEx.

ItpLoadProg 3: Inputs

VAR_INPUT
    bExecute       : BOOL;
    nChnId         : UDINT;
    sPrg           : STRING;
    nLength        : UDINT;
    tTimeOut       : TIME;
END_VAR

Name

Type

Description

bExecute

BOOL

A rising edge at this input triggers execution of the NC program.

nChnId

UDINT

Channel ID

sPrg

STRING

Name of the NC program that is executed.

nLength

UDINT

String length of the program name

tTimeOut

TIME

ADS Timeout-Delay

ItpLoadProg 4:

The NC program is looked up in directory TwinCAT\Mc\Nci, if no further information is available. It is however also possible to give an absolute path.

ItpLoadProg 5: Outputs

VAR_OUTPUT
    bBusy     : BOOL;
    bErr      : BOOL;
    nErrId    : UDINT;
END_VAR

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 'Timeout' input. While Busy = TRUE, no new command will be accepted at the inputs. Please note that it is not the execution of the service but its acceptance whose time is monitored.

bErr

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 'nErrId'. Is reset to FALSE by the execution of a command at the inputs.

nErrId

UDINT

Contains the command-specific error code of the most recently executed command. Is reset to 0 by the execution of a command at the inputs. The error numbers in ErrId can be looked up in the ADS error documentation or in the NC error documentation (error codes above 0x4000).

Requirements

Development environment

Target platform

PLC libraries to be linked

TwinCAT v3.1.0

PC or CX (x86 or x64)

Tc2_NCI