Siemens SIMATIC S7-300 Module data Hardware And Installation Manual

Appendix
S7-300 Programmable Controller Hardware and Installation
A5E00105492-01
11-19
11.3.2 Lightning protection zone conception
Principally of the Lightning protection zone conception to
IEC 61312-1/DIN VDE 0185 T103
The principle of the lightning protection zone conception states that the volume to
be protected against overvoltage, for example, a manufacturing hall, is subdivided
into lightning protection zones in accordance with EMC guidelines (see Figure).
The specific lightning protection zones are formed by the following measures:
Lightning protection of the building exterior (field side) Lightning protection
zone 0
Shielding
• Buildings
• Rooms and/or
• Devices
Lightning protection
zone 1
Lightning protection
zone 2
Lightning protection
zone 3
Effects of the Lightning Strike
Direct lightning strikes occur in lightning protection zone 0. Lightning strike
generates high-energy electromagnetic fields which can be reduced or eliminated
from one lightning protection zone to the next by suitable lightning protection
elements/measures.
Overvoltage
In lightning protection zones 1 and higher, a lightning strike might additionally
cause overvoltage as a result of switching operations, coupling etc.
Block diagram of the lightning protection zones
The figure below shows a block diagram of the lightning protection zone
conception for a detached building.

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)