ItpEnableDefaultGCode

from library version 4.0

The function block ItpEnableDefaultGCode enables execution of a user-defined G-Code before the start of each NC program from the PLC. The default program is executed before the loaded program when the actual NC program starts.

This function block enables rotation of the coordinate system for all NC programs to be executed, for example.

The standard G-Code must be stored as „DefaultGCode<Channel-Number>.def“ in the TwinCAT\CNC directory.

Interface

VAR_IN
    bExecute            : BOOL;
    bUseDefaultGCode    : BOOL;
    tTimeOut            : TIME;
END_VAR

VAR_IN_OUT
    sNciToPlc           : NciChannelToPlc;
END_VAR

NciChannelToPlc

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

Input	Data type	Description
bExecute	BOOL	The command is triggered by a rising edge at this input
bUseDefaultGCode	BOOL	If this variable is TRUE, the default G-Code is activated through a rising edge at bExecute. If the variable is FALSE, the default G-Code is deactivated.
tTimeOut	TIME	ADS Timeout-Delay

Input & output	Data type	Description
sNciToPlc	NciChannelToPlc	The structure of the cyclic channel interface from the NCI to the PLC

Output	Data 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).