File Types; Initializing Sd Memory Cards - Omron CJ1W-EIP21 Operation Manuals

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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. (Lowercase characters are converted to
uppercase characters.)
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 is eight characters for the name and three characters for the extension.
The first period (.) in a file name is taken as the delimiter between the file name and extension. Exten-
sions 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.
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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.
CJ-series EtherNet/IP Units Operation Manual for NJ-series CPU Unit (W495)
File names Extension
Refer to .bin Specified variables
9-7-2 File
Types.
Contents
This variables file contains the val-
ues of specified variables (which
include arrays and structures) in
binary format (.bin).
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