Hi everyone,

I need some advice on how to implement a header in a .csv. I created a dataloger with the libary SysFile. Currently I am checking if my .csv file exist and if not its created. After this iteration new values are written to it with SysFile.AM_APPEND_PLUS. Now I dont now to check if the File is already written or not, to decide if a header should be createt.

Thanks a lot for every tip or advise.

Best Regards

Hi, I have ein paar suggestions, maybe it would helpful.

By header you mean some first string on the CSV file.

As I see, you have already checking for "created / not created".
So I guess you already splitted your code to 'Create File' and 'Append to old'.
So I suggest just to extend the first part with 'Create File and Write header to it'.

Maybe you have to arrange it with some CASE construction like:

CASE iRecordProcedurePointer OF:
    0:
    // some init
    iRecordProcedurePointer := 1;
    1:
    // check existing or not
    IF NOT xExisting THEN
        iRecordProcedurePointer := 2; // go to create part
    ELSE
        iRecordProcedurePointer := 3; // go to append part
    END_IF
    2:
    // create file
    // create string for Header
    // write to file
    iRecordProcedurePointer := 0;

    3:
    // create string for Record
    // write to file
    iRecordProcedurePointer := 0;
END_CASE

OR you can even add some case for writing (because you are always writing) and combine different stringToWrite and fill it with header or process data string