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Program Protection
Section 6-7
Write-protection
Using Passwords
The program (or selected tasks) can also be write-protected if the write pro-
tection option is selected from the CX-Programmer when a password is being
registered for the entire program or those selected tasks. The write protection
setting can prevent unauthorized or accidental overwriting of the program.
Note
1.
If the selected tasks are write-protected by selecting this option when reg-
istering a password, only the tasks (program) that are password-protected
will be protected from overwriting. It will still be possible to overwrite other
tasks with operations such as online editing and task downloading.
2.
All tasks (programs) can be overwritten when program read protection is
not enabled.
Operating Procedure
1,2,3...
Table 1 When registering a password in the
UM read protection password Box or
Task read protection Box, select the Prohibit from overwriting to a protected
program Option.
3.
Either select
PLC - Transfer - To PLC
to transfer the program or select
PLC - Protection - Set Password
and click the
OK
button.
Note
The setting to enable/disable creating file memory program files will not take
effect unless the program is transferred to the CPU Unit. Always transfer the
program after changing this setting.
CX-Programmer
Password?
When a password is being registered for the entire user
program or selected tasks, program write-protection can be
enabled/disabled with an option setting.
The user program cannot be overwritten.
CPU Unit
Overwriting can be prohibited with password protection,
regardless of the DIP switch setting.
Memory Cassette
The user program cannot be overwritten.
Summary of Contents for CP1L - 12-2007
Page 3: ...iv...
Page 9: ...x...
Page 13: ...xiv TABLE OF CONTENTS...
Page 21: ...xxii...
Page 33: ...xxxiv Conformance to EC Directives 6...
Page 65: ...32 Function Blocks Section 1 5...
Page 428: ...395 Clock Section 6 9...
Page 429: ...396 Clock Section 6 9...
Page 523: ...488 Troubleshooting Unit Errors Section 9 4...
Page 531: ...496 Replacing User serviceable Parts Section 10 2...
Page 563: ...528 Auxiliary Area Allocations by Function Appendix C...
Page 611: ...576 Auxiliary Area Allocations by Address Appendix D...
Page 638: ...603 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 639: ...604 Connections to Serial Communications Option Boards Appendix F...
Page 669: ...634 Index...
Page 671: ...636 Revision History...