Program Protection - Omron SYSMAC CS Series Programming Manual

Startup Settings and Maintenance
6-4-6

Program Protection

Password Protection
1,2,3...
Name
Start-up Time
Power Interruption
Time
Total Power ON Time
Related Instructions
Instruction
SEC(065) HOURS TO SEC-
ONDS
HMS(066) SECONDS TO
HOURS
CADD(730) CALENDAR ADD
CSUB(731) CALENDAR SUB-
TRACT
DATE(735) CLOCK ADJUST-
MENT
The CS/CJ-series user program can be write-protected and completely pro-
tected (read/write protection).
Write-protection Using the DIP Switch
The user program can be write-protected by turning ON pin 1 of the CPU
Unit's DIP switch. When this pin is ON, it won't be possible to change the user
program from a Programming Device (including Programming Consoles).
This function can prevent the program from being overwritten inadvertently at
the work site.
It is still possible to read and display the program when it is write-protected.
Read/write-protection Using Passwords
Both read and write access to the user program area can be blocked from the
CX-Programmer. Protecting the program will prevent unauthorized copying of
the program and loss of intellectual property. A password is set for program
protection from a Programming Device and access is prevented to the whole
program.
Note 1. If you forget the password, the program within the PC cannot be trans-
ferred to the computer. Make a note of the password, and store it in a safe
place.
2. If you forget the password, programs cannot be transferred from the com-
puter to the PC. Programs can be transferred from the computer to the PC
even if the password protection has not been released.
1. Register a password either online or offline as follows:
a) Select the PC and select Properties from the View Menu.
b) Select Protection from the PC Properties Dialog Box and input the
password.
2. Set password protection online as follows:
a) Select PLC, Password Protection, and then Set. The Program Pro-
tection Setting Dialog Box will be displayed.
Addresses
A510 and A511 Contain the time at which the power
was turned on.
A512 and A513 Contain the time at which the power
was last interrupted.
A523 Contains the total time (in binary) that
the PC has been on in 10-hour units.
Name
Converts time data in hours/minutes/seconds
format to an equivalent time in seconds only.
Converts seconds data to an equivalent time in
hours/minutes/seconds format.
Adds time to the calendar data in the specified
words.
Subtracts time from the calendar data in the
specified words.
Changes the internal clock setting to the setting
in the specified source words.
Section 6-4
Function
Function
233