File Types - Omron NJ501-1300 User Manual

10-6-2 File Types

File Names
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.
Directory
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.
File Names Handled by CPU Unit
The files described in the following table can be read or written by the CPU Unit.
File type
Variables file (binary
format)
Refer to the NJ-series CPU Unit Software User's Manual (Cat. No. W501) for details.
10-6-3 Initializing SD Memory Cards
1
Insert the SD Memory Card into the CPU Unit.
2
Use the Sysmac Studio to initialize the SD Memory Card.
10-6-4 Format of Variable Data
Binary Format
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.
NJ-series CPU Unit Built-in EtherNet/IP Port User's Manual (W506)
File names Extension
Refer to .bin Specified variables
10-6-2 File
Types.
Contents
This variables file contains the val-
ues of specified variables (which
include arrays and structures) in
binary format (.bin).
10 FTP Server
Description
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