Transmit files from PLC to PC

[Open]

Hello, 

I am new to CXA_FileAsync with FB IL_FileWriteAsync for datalogging, are there any function block or possible to automatically transfer the data logged csv files from ctrlX to my PC every hour?

Warmest regards,

[CodeShepherd]

Moves to own topic from this one.

There are several ways to do so. First I like to mention that the CXA_SocketComm library also includes FTP and TFTP protocol to send files to a server e.g. your PC.

[Open]

Hello CodeShepherd, 

Thank you for your reply!

I am new to CXA_SocketComm and FTP are there any examples to use the FTP IL_FTPGetAsync function block? 

We need to transfer data csv file from ctrlX to the PC. 

Warmest regards,

[LiuPengfei · Accepted solution]

Hi,

Here is asimple demo code, maybe helpfull for you.

Declaration:

PROGRAM IL_FTPPut_Test
VAR
	fbFTPPut : IL_FTPPutAsync;
	fbFTPPutFile : IL_FTPPutFileAsync;
	
	filebuf: STRING(5000) := 'asdasd$R$N12312312$R$Npoipoi$R$N';
	sendlen: UDINT;
	
	itestcase: INT;
END_VAR

Implementation:

fbFTPPut();
fbFTPPutFile();

CASE itestcase OF
1: // put string
	fbFTPPut.Address := '192.168.1.101';
	fbFTPPut.Login := 'MyPcUserName';
	fbFTPPut.Password := '';
	fbFTPPut.RemoteFile := 'ftpsavefile'; // existing file
	fbFTPPut.ValueAdr := ADR(filebuf);
	fbFTPPut.NoOfBytes := IL_LEN(adr(filebuf));
	sendlen := fbFTPPut.NoOfSendBytes;	
	fbFTPPut.Execute := TRUE;

	IF fbFTPPut.Done THEN
		fbFTPPut.Execute := FALSE;
		itestcase := 0;
	END_IF
	
2: // put fie 
	fbFTPPutFile.Address := '192.168.1.101';
	fbFTPPutFile.Login := 'MyPcUserName';
	fbFTPPutFile.Password := '';
	fbFTPPutFile.RemoteFile := 'ftpcoty.scope'; //300kB
	fbFTPPutFile.LocalFile := ADR('_cnc/xy_2.scope');
	sendlen := fbFTPPutFile.NoOfSendBytes;	
	fbFTPPutFile.Execute := TRUE;

	IF fbFTPPutFile.Done THEN
		fbFTPPutFile.Execute := FALSE;
		itestcase := 0;
	END_IF

END_CASE

[Rathinavel]

Hi,

I tried executing the above sample in my machine, the case1 just produced a file on my ftpserver with the given name & buffer data were successfully written to the file.

But the case2: did not retrive the file from my PLC to PC and it resulted the error codes as below

Error ID: RESOURCE_ERROR

Additional1: 16#0A0F0102
Additional2: 16#0C231010

same server successfully accessed by case1, but did not by case2 & could not find the description for the error codes shown here

the localfile was present in the ctrlX, pic as below

[CodeShepherd]

Error codes can be found in our online documentation. See here. "RESSOURCE_ERROR, 16#0A0F0101, 16#0C230010, No object available with this name"