7-9
Security Settings
You can use the Sysmac Studio to restrict operations and protect user-defined function blocks in order
to prevent unauthorized access to safety functions and protect assets.
An overview of the applications and functions of security settings is given below.
Function Application Outline of function
Safety Pass-
word
To prevent unauthor-
ized access to safety
functions
You can set a password for the Safety CPU Unit in order to prevent
unauthorized operations, including changing the operating mode and
performing the Clear All Memory operation.
Data Protec-
tion
To protect assets You can set passwords for individual function block POUs so that
they cannot be displayed or changed.
7-9-1
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 af
fects 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 of
fline 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).)
• Changing the safety password
• Clear All Memory operation
*1
• 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.
Item Description
Number of Characters 32 characters max.
Applicable Characters Single-byte alphanumeric characters (case sensitive)
7 Checking Operation and Actual Operation
7 - 51
NX-series Safety Control Unit User's Manual (Z930)
7-9 Security Settings
7
7-9-1 Setting the Safety Password
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