Siemens SIMATIC ET 200SP System Manual

Distributed I/O system
155 System Manual, 09/2019, A5E03576849-AJ
Protection
9
9.1 Overview of the protective functions of the CPU
Introduction
This chapter describes the following functions for protecting the ET 200SP against
unauthorized access:
● Access protection
● Know-how protection
● Copy protection
Further measures for protecting the CPU
The following measures additionally increase the protection against unauthorized access to
functions and data of the CPU from external sources and via the network:
● Deactivation of the Web server
● Deactivation of the OPC UA server (you will find further information on the security
mechanisms for OPC UA servers in the Communication
(https://support.industry.siemens.com/cs/ww/en/view/59192925
) function manual)
● Deactivation of time synchronization via an NTP server
● Deactivation of PUT/GET communication
When using the Web server, you protect your ET 200SP distributed I/O system against
unauthorized access
● By setting password-protected access rights for certain users in user management.
● By using the default "Allow access via HTTPS only" option.
This option allows access to the Web server with the secure Hypertext transfer protocol
HTTPS only.

Siemens SIMATIC ET 200SP Specifications

General

System Type	Distributed I/O System
Mounting	DIN Rail
Communication Protocol	PROFINET, PROFIBUS
IP Rating	IP20
Category	I/O Systems
Supply Voltage	24 V DC
Modularity	Yes
Hot Swapping	Yes
Storage Temperature	-40°C to +70°C
Digital Inputs	Yes
Digital Outputs	Yes
Analog Inputs	Yes
Analog Outputs	Yes
Communication Interface	PROFINET, PROFIBUS
Number of Modules	Up to 64
Relative Humidity	5 to 95% (non-condensing)
Operating Temperature	-25°C to +60°C