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371
Program Protection
Section 6-6
CPU Unit DIP Switch
Confirming the User Program Date
The dates the program and parameters were created can be confirmed by
checking the contents of A90 to A97.
Auxiliary Area Words
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.
Pin
Name
Settings
SW1
User Program Memory Write Protection
ON: Protected
OFF: Not protected
Name
Address
Description
User Program
Date
A90 to A93
The time and date the user program was last over-
written in memory is given in BCD.
A90.00 to A90.07
Seconds (00 to 59 BCD)
A90.08 to A90.15
Minutes (00 to 59 BCD)
A91.00 to A91.07
Hour (00 to 23 BCD)
A91.08 to A91.15
Day of month (01 to 31 BCD)
A92.00 to A92.07
Month (01 to 12 BCD)
A92.08 to A92.15
Year (00 to 99 BCD)
A93.00 to A93.07
Day (00 to 06 BCD)
Day of the week:
00: Sunday, 01: Monday,
02: Tuesday, 03: Wednesday,
04: Thursday, 05: Friday,
06: Saturday
Parameter Date
A94 to A97
The time and date the parameters were last overwrit-
ten in memory is given in BCD. The format is the
same as that for the User Program Date given above.
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.
Содержание CP1H-CPU - 05-2006
Страница 1: ...OPERATION MANUAL CP1H CPU Unit SYSMAC CP Series CP1H X40D CP1H XA40D CP1H Y20DT D Cat No W450 E1 02...
Страница 2: ...CP1H X40D CP1H XA40D CP1H Y20DT D CP1H CPU Unit Operation Manual Revised May 2006...
Страница 3: ...iv...
Страница 11: ...xii TABLE OF CONTENTS...
Страница 15: ...xvi...
Страница 19: ...xx...
Страница 31: ...xxxii Conformance to EC Directives 6...
Страница 71: ...40 Function Blocks Section 1 5...
Страница 133: ...102 Computing the Cycle Time Section 2 7...
Страница 169: ...138 CPM1A Expansion I O Unit Wiring Section 3 6...
Страница 411: ...380 Clock Section 6 8...
Страница 519: ...488 Replacing User serviceable Parts Section 10 2...
Страница 527: ...496 Standard Models Appendix A...
Страница 535: ...504 Dimensions Diagrams Appendix B...
Страница 628: ...597 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Страница 629: ...598 Connections to Serial Communications Option Boards Appendix F...
Страница 659: ...628 PLC Setup Appendix G...
Страница 665: ...634 Index work words 159 write protection 370...
Страница 667: ...636 Revision History...