Kuhnke Electronics Instruction Manual

Function Libraries
4.5.13 Writing to a File
"MMC_FileRead" lets you write data to a file. The
parameters required are the file handle of the open file, a
pointer to a buffer plus the number of bytes to be written.
This is an asynchronous Function Block. It transfers the
job to the file system and checks if it has been completed.
It needs to be run until the job has been handled
successfully.
Parameter Type Value Explanation
handle INT file handle
buff DWORD pointer to write buffer
count INT
result INT
number of bytes to be
written
0 running
< 0 error
> 0 job done
FUNCTION_BLOCK MMC_FileWrite
VAR_INPUT
handle:INT;
buff:DWORD;
count:INT;
END_VAR
VAR_OUTPUT
result:INT;
END_VAR
106 E 700 GB