ItpSetSubroutinePath
With function block ItpSetSubroutinePath , the search path for subroutines can optionally be set.
If a subroutine still has to be integrated, the file is searched in the following order:
- Optional search path (ItpSetSubroutinePath)
- Path from which the main program was loaded
- TwinCAT\Mc\Nci directory
Only one optional path can be active at a time and it will remain active until it is overwritten with:
- another path or
- with an empty string
After a TwinCAT restart, the path has to be re-assigned.
 | Outdated version The sole purpose of the function block is to ensure compatibility with existing projects. For new projects please use the function block ItpSetSubroutinePathEx. |
Inputs
VAR_INPUT
bExecute : BOOL;
nChnId : UDINT;
sPath : STRING;
nLength : UDINT;
tTimeOut : TIME;
END_VARName | Type | Description |
|---|---|---|
bExecute | BOOL | The command is triggered by a rising edge at this input. |
nChnId | UDINT | Channel ID |
sPath | STRING | Optional path for subroutines; is disabled with an empty string. |
nLength | UDINT | String length |
tTimeOut | TIME | ADS Timeout-Delay |
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 |