Siemens SIMATIC ET 200SP Function Manual

Communications services
3.2 Communications protocols and port numbers used for Ethernet communication
Communication
22 Function Manual, 11/2019, A5E03735815-AH
3.2 Communications protocols and port numbers used for Ethernet
communication
This section provides an overview of the supported protocols and port numbers used for
communication over PN/IE interfaces. For each protocol the address parameters, the
respective communications layer as well as the communications role and the
communications direction are specified.
This information makes it possible to match the security measures for protection of the
automation system to the used protocols (for example firewall). Because the security
measures are limited to Ethernet or PROFINET networks, the tables do not include
PROFIBUS protocols.
Note
Port numbers used
The specified port
numbers are the standard port numbers used by the S7-1500 CPU. Many
communication protocols and implementations enable you to use other port
numbers.
The following tables show the different layers and protocols used in the S7-1500 CPUs and
S7 1500 communication modules.
The following table shows the protocols supported by the S7-1500 CPUs, ET 200SP CPUs
and the CPUs 1513/1516pro 2 PN. The S7-1500 software controllers also support the
protocols listed in the following table for the Ethernet interfaces that are assigned to the
software controller.
Table 3- 2 Layers and protocols of the S7-1500 CPUs and software controllers (via PROFINET interface of the CPU)
Protocol
Port num-
ber
(2) Link layer
(4) Transport layer
Function
Description
PROFINET protocols
DCP
Discovery and
basic configu-
ration protocol
Not relevant (2) Ethertype
0x8892
(PROFINET)
Accessible devices
PROFINET Discovery and
configuration
DCP is used by PROFINET to discover
PROFINET devices and provide basic
settings.
LLDP
Link Layer
Discovery
protocol
Not relevant (2) Ethertype
0x88CC (LLDP)
PROFINET Link Layer Dis-
covery protocol
LLDP is used by PROFINET to discover
and manage neighbor relationships
between PROFINET devices.
LLDP uses the special multicast MAC
address:
01-80-C2-00-00-0E
MRP
Media Redun-
dancy Protocol
Not relevant (2) Ethertype
0x88E3 (IEC
62493-2-2010)
PROFINET medium redun-
dancy
MRP provides control of redundant
transmission paths by means of a ring
topology.
MRP uses standard-compliant Multicast
MAC addresses.

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