Omron sysmac NX Series User Manual page 516

9 Checking Operation and Actual Operation
9-10 Security Settings
You can use the Sysmac Studio to restrict operations and to protect POUs (programs and function
blocks) in order to prevent unauthorized access to safety functions and to protect assets.
An overview of the applications and functions of security settings is given below.
Function
Safety Pass-
word
Data Protec-
tion
9-10-1
Setting the Safety Password
This section describes the safety password setting for the Safety CPU Unit.
l Safety Password Application
The safety password prevents unauthorized access to the safety functions of the Safety CPU Unit.
When a safety password is set, the user is required to enter the password before performing an
operation that affects the safety functions.
After you enter the safety password, it is retained in the Sysmac Studio. You do not need to enter it
again until you take the Safety CPU Unit offline or close the project.
The safety password protects the following online operations on the Safety CPU Unit.
• Changing the operating mode (This does not apply when changing between DEBUG mode
(STOPPED) and DEBUG mode (RUN).)
• Downloading (transferring data from the Computer to the Controller)
• Uploading (transferring data from the Controller to the Computer)
• Changing the safety password
• Clear All Memory operation
• Performing safety validation
*1. The password must be entered each time for this operation.
The safety password is empty by default.
You can set a safety password before or after you perform safety validation.
Precautions for Correct Use
• For security purposes, we recommend that you set a safety password for the Safety CPU
Unit.
• If you lose the password set to the Safety CPU Unit, you will no longer be able to make
changes to the Safety CPU Unit. Take caution not to lose the password. If the password is
lost and needs to be reset, contact your OMRON representative.
l Characters Allowed for Passwords
The following characters can be used for the password.
9-52
Application
To prevent unauthor- You can set a password for the Safety CPU Unit in order to prevent
ized access to safety unauthorized operations, including changing the operating mode and
functions performing the Clear All Memory operation.
To protect assets You can set passwords for POUs (programs and function blocks), so
that they cannot be individually displayed or changed.
*1
NX-series Safety Control Unit/Communication Control Unit User's Manual (Z395)
Outline of function