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22.2 Program Upload Protection Function
22.2.1 Outline of Function
Outline of the program upload protection function
• This function is to prohibit reading programs and system registers by setting to disable
program uploading.
• If the upload protection is set, note that the ladder programs and system registers will be
disalbed to be uploaded after that.
• The setting can be cancelled using the programming tool, however, all ladder programs,
system registers and password information will be deleted when the setting is cancelled.
• Editing the files that are controlled with a PC can be carried out online using the
programming tool. However, the programs will be broken if the programs are not absolutely
matched. When using this function, store ladder programs as files without fail.
Interaction with the password protect function
• The password setting can be specified simultaneously for the PLC in which this function is
set.
• This function can be also set in a passoword-protected PLC.
•
All programs and security information will be deleted when the upload
protection setting is cancelled. We cannot restore the deleted programs
even if you ask us.
22.2 Program Upload Protection Function
22-9
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