Read_AppLog and Write_USB Function Blocks

[LBee11]

Hi All, me again!


I'm trying to get my head around writing to a USB. I can write to a Log file in the HMI, but am struggling with the Read_Applog function.


Im currently getting the following error from the Read_Applog:

Line index overflow—the function block cannot find the line that contains the CSV record in
the controller’s application data log.

I'm also getting an error from the Write_USB block:

Error; record write not completed; the next program loop resets this bit.

I'm not sure where I'm going wrong, attached is the snippet i'm using (Only for testing!). I can't specify an index, so where is the error?


TIA

[LBee11]

I got this working, found the help file that supports these two functions and wired it like the example shows. Works correctly after that!