Omron NJ501-1300 - File Types

10-17
10 FTP Server
NJ-series CPU Unit Built-in EtherNet/IP Port User’s Manual (W506)
10-6 Using SD Memory Card
Operations
10
10-6-2 File Types
Files are distinguished by assigning file names and extensions. The following characters can be used in
file names and extensions: File names are not case sensitive.
A to Z, a to z, 0 to 9, and the following symbols: $ % ’ - _ @ ! ‘ ( ) ~ = # & + ^ [ ] { } , . ;
The following characters cannot be used in files names and extensions:
Blanks, multi-bytes characters, and the following symbols: / \ ? * ” : < > etc.
The maximum file name length with the extension is 65 characters. The first period (.) in a file name is
taken as the delimiter between the file name and extension. Extensions are determined by the file type.
You can create up to five levels of directories to store files on the SD Memory Card (count the root
directory as one level). A maximum of 65 characters can be used in a directory name.
The files described in the following table can be read or written by the CPU Unit.
Refer to the
NJ-series CPU Unit Software User’s Manual (Cat. No. W501) for details.
1 Insert the SD Memory Card into the CPU Unit.
2 Use the Sysmac Studio to initialize the SD Memory Card.
The IOM format is a data format used for binary data specified by the ladder instructions, FileReadVar
(Read Variables File) and FileWriteVar (Save Variables File), in the CPU Unit. You can also read and
save arrays and structures. Data is created as shown below when the data of variable
Var_A is placed
in an attached file in binary format.
10-6-2 File Types
File Names
Directory
File Names Handled by CPU Unit
File type File names Extension Contents Description
Variables file (binary
format)
Refer to
10-6-2 File
Types.
.bin Specified variables This variables file contains the val-
ues of specified variables (which
include arrays and structures) in
binary format (.bin).
10-6-3 Initializing SD Memory Cards
10-6-4 Format of Variable Data
Binary Format