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5.2 High Performance Model QCPU, Process CPU, Redundant CPU, Universal Model QCPU
5.2.10 Details of written files
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MEMORIES AND FILES USED IN CPU MODULE
5.2.10 Details of written files
The file name, file size, written date and time, etc. set when creating a file by GX
Developer are added to each file written to the CPU module.
Choose [Online] [Read from PLC] on GX Developer and monitor the files. The files are
displayed as shown below.
(a) File name
1) File name structure and file specification
Each file has a file name (up to 8 single-byte characters/4 double-byte
characters) and extension (3 single-byte characters).
Create file name with capital letters only.
Extensions are automatically added depending on types set at the time of
creating a file.
2) Characters unavailable for file names
The following words reserved for MicrosoftO WindowsO cannot be used for
file names.
• COM1 to COM9
• PRN
• LPT1 to LPT9
• NUL
• AUX
• CLOCK$
• CON
Figure 5.40 Display of file details