Siemens MOBY FC 56 Technical Description page 33

FORMAT: Format (initialize) a data carrier (see chapter 4.2.1)
After a data carrier is received from SIEMENS, it must be formatted before entering
the manufacturing process (or it can be formatted in the manufacturing process itself).
S The MDS is completely erased. All the user data (file directory and data) will
therefore be lost (option = 00H or 01H).
S The directory + FAT remain. Only the user data area is deleted (option = 02H or
03H).
S The directory + FAT are deleted. The user data area remains unchanged
(option = 04H or 05H).
S The "logical" MDS type is written to the MDS.
S The filehandler code is entered onto the MDS.
S The operating mode is set with/without ECC.
S FORMAT command is only permissible on MDSs with access rights (priority) "D."
CREATE: Create new file on formatted MDS (see chapter 4.2.2)
S The new file is entered in the directory (file index).
S Memory is reserved on the MDS for this file.
QUEUE-WRITE: Set up a complete data carrier (see chapter 4.2.3)
This command enables individual files to be loaded very quickly onto the data
carrier, together with their corresponding contents and attributes. The individual
files to be created (consisting of file name, attribute, file length and data) are
processed sequentially by the filehandler. This means that the filehandler internally
first creates a file, then writes data to it and assigns it an attribute. The next file to
be created is then processed in the same way.
This function can only be performed after the specified MDS has been successfully
formatted.
QUEUE-READ: Read several files with one command (see chapter 4.2.4)
The QUEUE-READ command can be used to read several files (selective, max. of
15) from the MDS with one command. As an option, the entire MDS with all files
can be read.
UPDATE: Write data to an existing file (see chapter 4.2.5)
S A defined quantity of bytes is written to the existing file ("length" parameter in
UDT 50) from DAT_DB_number.
S In contrast to the WRITE command, the filehandler updates the file length (i.e.,
the file length after the UPDATE command corresponds to the "length"
parameter in bytes in UDT 50).
S The memory area reserved for the file will not be released (FAT is not updated).
FC 56
J31069-D0155-U001-A0-7618
MOBY Commands
4-3