DEPRAG Smart Documentation

GetFilesInDirectoryCount

TwinCAT TIA

Local File and directory access Folder

ns=2;s=DEPRAG Smart/Local/FileAndDirectoryAccess/DirectoryAccess/GetFilesInDirectoryCount

The command returns the number of files contained in the specified path.

Parameters:

FullPath
Full path of the directory.

Returns:

GetFilesInDirectoryCount

A variable of type OpcMethodReturnValueInt32. The Result property contains the command-specific return values.

Result
Number of files.

In addition to the parameters already explained, the following variables must be created / transferred for the implementation in TwinCAT 3:

Beckhoff parameter:

bDirectoryAccessGetFilesInDirectoryCount
A boolean variable that can be used to trigger the execution of the GetFilesInDirectoryCount command.

OutputDataDirectoryAccessGetFilesInDirectoryCount
An instance of "ST_Int32OutputData" to which the return value of the GetFilesInDirectoryCount method is written.

hrDirectoryAccessGetFilesInDirectoryCount
This can be used to monitor the execution of the command. Error codes have the type "HRESULT".

fbDirectoryAccess
An instance of the "FB_DirectoryAccess" function block supplied with the DEPRAG Smart library.

sFullPath
A STRING variable containing the full path of the directory.

ConnectionHandle
"ConnectionHandle" received when establishing a connection between DEPRAG Smart Server and your OPC UA client.



VAR
     bDirectoryAccessGetFilesInDirectoryCount   : BOOL;
     OutputDataDirectoryAccessGetFilesInDirectoryCount : ST_Int32OutputData;
     hrDirectoryAccessGetFilesInDirectoryCount   : HRESULT;

     fbDirectoryAccess : FB_DirectoryAccess;
END_VAR

hrDirectoryAccessGetFilesInDirectoryCount := fbDirectoryAccess.GetFilesInDirectoryCount(
              bExecute    := bDirectoryAccessGetFilesInDirectoryCount,
              ConnectionHandle  := depragSmartConnection.ConnectionHandle,
              sFullPath   := 'C:\Test',
              OutputData   => OutputDataDirectoryAccessGetFilesInDirectoryCount);
IF hrDirectoryAccessGetFilesInDirectoryCount <> S_FALSE THEN 
     bDirectoryAccessGetFilesInDirectoryCount := FALSE;
END_IF

For examples and explanations regarding the calls of nodes via Siemens TIA Portal please refer to the sub-menu "Siemens TIA Portal" in section "Getting Started".