Protecting Access To The Cpu Or Code Block Is Easy - Siemens SIMATIC S7-1200 Manual

Easy to create the device configuration

5.6 Protecting access to the CPU or code block is easy

5.6 Protecting access to the CPU or code block is easy
The CPU provides 3 levels of security for restricting access to specific functions. When you
configure the security level and password for a CPU, you limit the functions and memory
areas that can be accessed without entering a password.
The password is case-sensitive.
To configure the password,
follow these steps:
1. In the "Device configuration",
2. In the inspector window,
3. Select the "Protection"
Each level allows certain functions to be accessible without a password. The default
condition for the CPU is to have no restriction and no password-protection. To restrict access
to a CPU, you configure the properties of the CPU and enter the password.
Entering the password over a network does not compromise the password protection for the
CPU. A password-protected CPU allows only one user unrestricted access at a time.
Password protection does not apply to the execution of user program instructions including
communication functions. Entering the correct password provides access to all of the
functions.
PLC-to-PLC communications (using communication instructions in the code blocks) are not
restricted by the security level in the CPU. HMI functionality is also not restricted.
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select the CPU.
select the "Properties" tab.
property to select the
protection level and to enter a
password.
After completing the configuration,
download the project to the CPU.
The IP addresses for the CPU and
for the router (if applicable) are
configured when you download the
project.
Manual, 11/2011, A5E02486774-04
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