Siemens SIMATIC ET 200pro Operating Instructions Manual page 17

Product overview
3.1 Application
Security Integrated
The CPU provides, in conjunction with STEP 7, password-based know-how protection
against unauthorized reading out or modification of the program blocks.
The copy protection provides reliable protection against unauthorized reproduction of
program blocks. With copy protection you associate individual blocks with the serial number
of the CPU or SIMATIC memory card.
In addition, you can assign various access rights to different user groups using four different
authorization levels.
Through an improved manipulation protection, the CPU detects modified or unauthorized
transmissions of engineering data.
Safety Integrated
The fail-safe CPU is intended for users who want to implement demanding standard and fail-
safe applications both centrally and decentrally.
The fail-safe CPU enables the processing of standard and safety programs on a single CPU.
This allows you to evaluate fail-safe data in the standard user program. As a result of this
integration, the system advantages and the extensive functionality of SIMATIC are also
available for fail-safe applications.
The fail-safe CPU is certified for use in safety mode up to:
● Safety class (Safety Integrity Level) SIL 3 according to IEC 61508:2010
● Performance Level (PL) e and Category 4 according to ISO 13849-1:2015 or according to
EN ISO 13849-1:2015
Additional password protection for F-configuration and F-program is set up for IT security.
System diagnostics
Integrated system diagnostics is enabled by default for the CPUs. The different diagnostic
types are configured instead of programmed. System diagnostics information is shown
uniformly and in plain text on the display of the CPU, in STEP 7, on the HMI and on the Web
server, even for messages related to drives. This information is available in RUN mode or in
STOP mode of the CPU. The CPU automatically updates diagnostic information when you
have configured new hardware components.
OPC UA
OPC UA is an open and vendor-neutral communication protocol. The CPU can be used as
an OPC UA server or as an OPC UA client. A runtime license is required to operate the OPC
UA functions.
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CPU 1516pro-2 PN (6ES7516-2PN00-0AB0)
Operating Instructions, 11/2019, A5E35873416-AC