Protection; Overview Of The Protection Functions; Configuring Access Protection For The Cpu - Siemens SIMATIC S7-1500 System Manual

Protection

9.1

Overview of the protection functions

Introduction
This section describes the functions for protection from unauthorized access:
● Access protection
● Know-how protection
● Protection by locking the CPUs
Other CPU protective measures
The following measures provide extra protection against unauthorized access from external
sources and through the network:
● Do not activate time-of-day synchronization over NTP servers.
● Do not activate PUT/GET communication.
9.2

Configuring access protection for the CPU

Introduction
The SIMATIC Drive Controller has four different access levels to limit access to specific
functions.
By setting up access levels and passwords, you limit the functions and memory areas that
are accessible without a password. The individual access levels and corresponding
passwords are specified in the object properties of the CPUs.
Rules for passwords
Ensure that passwords are sufficiently secure.
Apply the following rules:
● Assign a password that is at least 8 characters long.
● Use different cases and characters: uppercase/lowercase, numbers and special
characters.
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