Siemens SIMATIC ET 200SP System Manual

Technical specifications
14.3 Electromagnetic compatibility of fail-safe modules
Distributed I/O system
278 System Manual, 09/2019, A5E03576849-AJ
14.3 Electromagnetic compatibility of fail-safe modules
Protecting ET 200SP with fail-safe modules against overvoltages
If your equipment requires protection from overvoltage, we recommend that you use an
external protective circuit (surge filter) between the load voltage power supply and the load
voltage input of the BaseUnits to ensure surge immunity for the ET 200SP with fail-safe
modules.
Note
Overvoltage protection measures always require a case
-by-case examination of the entire
plant. Almost complete protection from overvoltages, however, can only be achieved if the
entire building surroundings have been designed for overvoltage protec
tio
n. In particular, this
involves structural measures in the building design phase.
For detailed information regarding overvoltage protection, we recommend that you contact
your Siemens representative or a company specializing in lightning protection.

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