ItpLoadProgEx
VAR_INPUT
VAR_INPUT
bExecute : BOOL;
sPrg : STRING(255);
nLength : UDINT;
tTimeOut : TIME;
END_VAR
bExecute: The function block reads the NC program when a rising edge is encountered
sPrg: Name of the NC program that is loaded
nLength: String length of the program name
tTimeOut: ADS Timeout-Delay
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.
VAR_IN_OUT
VAR_IN_OUT
sNciToPlc : NCTOPLC_NCICHANNEL_REF;
END_VAR
sNciToPlc: The structure of the cyclic channel interface from the NCI to the PLC. This structure is only accessed for reading. (type: NCTOPLC_NCICHANNEL_REF)
VAR_OUTPUT
VAR_OUTPUT
bBusy : BOOL;
bErr : BOOL;
nErrId : UDINT;
END_VAR
bBusy: 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: 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: 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).
Sample
VAR
in_stItpToPlc AT %I* : NCTOPLC_NCICHANNEL_REF;
fbLoadProg : ItpLoadProgEx;
sProgramPath : STRING (255):= 'TestIt.nc';
END_VAR
fbLoadProg(
bExecute := TRUE,
sPrg := sProgramPath,
nLength := LEN(sProgramPath),
tTimeOut := t#200ms,
sNciToPlc := in_stItpToPlc
);
Requirements
Development environment |
Target platform |
PLC libraries to be linked |
---|---|---|
TwinCAT v3.1.0 |
PC or CX (x86 or x64) |
Tc2_NCI |