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409
Program Protection
Section 6-7
2.
Go online and then either select
PLC - Transfer - To PLC
to transfer the
program or select
PLC - Protection - Set Password
and click the
OK
but-
ton.
Application
The above procedure enables using a password to protect against disclosure
of the program to unauthorized persons.
Note
(1) Copying the program is possible if read protection is not set.
(2) The setting to prohibit backing up the program is not effective until the
program is transferred to the PLC. Always transfer the program after
changing the setting.
Auxiliary Area Flags and Bits Related to Password Protection
▲
Properties
Name
Bit
address
Description
UM Read Protection
Flag
A99.00
Indicates whether or not the PLC (the entire user
program) is read-protected.
OFF: UM read protection is not set.
ON: UM read protection is set.
Task Read Protection
Flag
A99.01
Indicates whether or not selected program tasks
are read-protected.
OFF: Task read protection is not set.
ON: Task read protection is set.
Program Write Protec-
tion for Read Protec-
tion
A99.02
Indicates whether or not the write protection
option has been selected to prevent overwriting of
password-protected tasks or programs.
OFF: Overwriting allowed
ON: Overwriting prohibited (write-protected)
Enable/Disable Bit for
Program Backup
A99.03
Indicates whether or not a backup program file
(.OBJ file) can be created when UM read protec-
tion or task read protection is set.
OFF: Creation of backup program file allowed
ON: Creation of backup program file prohibited
UM Read Protection
Release Enable Flag
A99.12
Indicates when UM read protection cannot be
released because an incorrect password was
input five times consecutively.
OFF: Protection can be released
ON: Protection cannot be released
Task Read Protection
Release Enable Flag
A99.13
Indicates when task read protection cannot be
released because an incorrect password was
input five times consecutively.
OFF: Protection can be released
ON: Protection cannot be released
Содержание CP1L CPU UNIT - 03-2009
Страница 1: ...Cat No W462 E1 06 CP1L CPU Unit SYSMAC CP Series CP1L L_0D_ CP1L M_0D_ OPERATION MANUAL...
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Страница 4: ...iv...
Страница 10: ...x...
Страница 22: ...xxii...
Страница 34: ...xxxiv Conformance to EC Directives 6...
Страница 70: ...36 Function Blocks Section 1 5...
Страница 584: ...550 Trouble Shooting Section 8 7...
Страница 627: ...593 Sample Application Section 9 12 Network Settings Network Tab Network Settings Driver Tab...
Страница 630: ...596 Sample Application Section 9 12...
Страница 654: ...620 Troubleshooting Unit Errors Section 11 4...
Страница 662: ...628 Replacing User serviceable Parts Section 12 2...
Страница 668: ...634 Standard Models Appendix A...
Страница 698: ...664 Auxiliary Area Allocations by Function Appendix C...
Страница 746: ...712 Auxiliary Area Allocations by Address Appendix D...
Страница 773: ...739 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 774: ...740 Connections to Serial Communications Option Boards Appendix F...
Страница 806: ...772 Index...
Страница 808: ...774 Revision History...