TwinCAT 3 PLC Lib: Tc2_System

FB_FilePuts

The function block writes strings into a file. The string is written to the file up to the null termination, but without the null character. The file must have been opened in text mode.

 

VAR_INPUT

VAR_INPUT
    sNetId    : T_AmsNetId;
    hFile     : UINT;
    sLine     : T_MaxString;(* string to write *)
    bExecute  : BOOL;
    tTimeout  : TIME := DEFAULT_ADS_TIMEOUT;
END_VAR

sNetId: String containing the AMS network identifier of the target device to which the ADS command is directed (type: T_AmsNetId).

hFile: File handle, which was generated when the function block FB_FileOpen was created.

sLine: String to be written into the file (type: T_MaxString).

bExecute: The function block is activated by a rising edge at this input.

tTimeout: States the length of the timeout that may not be exceeded by execution of the ADS command.

 
 

VAR_OUTPUT

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

bBusy: When the function block is activated, this output is set to TRUE and remains set until feedback is received. As long as bBusy is TRUE, no new command can be executed.

bError: If an error occurs during command execution, this output is set, once the bBusy output has been reset.

nErrId: Returns the ADS error code or the command-specific error code when the bError output is set.

Command-specific error code
Possible cause
0x703
Invalid or unknown file handle.
0x70E
File was opened with wrong method (e.g. with obsolete FILEOPEN function block).
 
 

Example of calling the function block in FBD:

PROGRAM Test
VAR
    fbFilePuts       : FB_FilePuts;
    hFile            : UINT;
    bFilePuts        : BOOL;
    bFilePutsBusy    : BOOL;
    bFilePutsError   : BOOL;
    nFilePutsErrorId : UDINT;
END_VAR
 
 

Requirements

Development environment
Target system type
PLC libraries to include (Category group)
TwinCAT v3.1.0
PC or CX (x86, x64, ARM)
Tc2_System (System)