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Program Protection
Section 6-7
2.
Input the password. If the password is incorrect, one of the following mes-
sages will be displayed and protection will not be released.
UM Read Protection
Task Read Protection
3.
If an incorrect password is input five times consecutively, read protection
will not be released even if the correct password is input on the sixth at-
tempt and displaying and editing the entire user program or the specified
tasks will be disabled for two hours.
Read Protection for Individual Tasks Using Passwords
Overview
It is possible to read-protect individual program tasks (referred to as “task
read protection” below) or the entire PLC. The same password controls
access to all of the read-protected tasks.
Task read protection prevents anyone from displaying or editing the read-pro-
tected set of tasks from CX-Programmer without inputting the correct pass-
word. In this case, the entire program can be uploaded, but the read-protected
tasks cannot be displayed or edited without inputting the correct password.
Tasks that are not read-protected can be displayed, edited, or modified with
online editing.
Note
Task read protection cannot be set if UM read protection is already set. How-
ever, it is possible to set UM read protection after task read protection has
been set.
Summary of Contents for CP1L-L14D Series
Page 2: ...CP1L L14D CP1L L20D CP1L M30D CP1L M40D CP1L CPU Unit Operation Manual Revised June 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 153: ...120 CP CPM1A series Expansion I O Unit Wiring Section 3 6...
Page 523: ...490 Troubleshooting Unit Errors Section 9 4...
Page 531: ...498 Replacing User serviceable Parts Section 10 2...
Page 563: ...530 Auxiliary Area Allocations by Function Appendix C...
Page 611: ...578 Auxiliary Area Allocations by Address Appendix D...
Page 638: ...605 Connections to Serial Communications Option Boards Appendix F Connecting to Unit...
Page 639: ...606 Connections to Serial Communications Option Boards Appendix F...
Page 669: ...636 Index...
Page 671: ...638 Revision History...