ItpReadToolDesc
The function block ItpReadToolDesc reads the tool parameters for the supplied D-word.
![]()  | Outdated version The sole purpose of the function block is to ensure compatibility with existing projects. For new projects please use the function block ItpReadToolDescEx.  | 
 Inputs
VAR_INPUT
    bExecute       : BOOL;
    nChnId         : UDINT;
    nDNo           : UDINT;
    tTimeOut       : TIME;
END_VARName  | Type  | Description  | 
|---|---|---|
bExecute  | BOOL  | A rising edge starts the read operation.  | 
nChnId  | UDINT  | Channel ID  | 
nDNo  | UDINT  | D-word for which the tool parameters are to be read. nDoNo can have values between 1 and 255.  | 
tTimeOut  | TIME  | ADS Timeout-Delay  | 
/
 Inputs/Outputs
VAR_IN_OUT
    sToolDesc      : ToolDesc;
END_VAR Name  | Type  | Description  | 
|---|---|---|
sToolDesc  | ToolDesc  | A structure into which the tool parameters of nDNo are written. The meaning of the parameters depends on the tool type, and can be found in the tool data.  | 
 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).  | 
TYPE ToolDesc:
STRUCT
    nToolNumber    : UDINT; (*valid range from 0 .. 65535*)
    nToolType      : UDINT;
    fParam         : ARRAY [2..15] OF LREAL;
END_STRUCT
END_TYPE See also:
ItpWriteToolDesc; ItpSetToolDescNull
Requirements
| 
                   Development environment  | 
                   Target platform  | 
                   PLC libraries to be linked  | 
|---|---|---|
| 
                   TwinCAT v3.1.0  | 
                   PC or CX (x86 or x64)  | 
                   Tc2_NCI  | 
