Communication Services - Siemens S7-1500 Operating Instructions Manual

Product overview, functions

2.2 Communication services

Address label: Unique MAC address preset for the CP
The CP ships with a default MAC address:
The MAC address is printed on the housing.
If you configure a MAC address (ISO transport connections), we recommend that you use
the MAC address printed on the module for module configuration! This ensures that you
assign a unique MAC address in the subnet!
Application
The CP is intended for operation in an S7-1500 automation system. It allows the S7-1500 to
be connected to Industrial Ethernet.
With a combination of different security measures such as firewall and protocols for data
encryption, the CP protects the S7-1500 or even entire automation cells from unauthorized
access. It also protects the communication between the S7 station and communications
partners from spying and manipulation.
2.2 Communication services
The CP supports the following communication services:
● Open User Communication (OUC)
Open User Communication supports the following communications services via the CP
using programmed or configured communications connections:
– ISO transport (complying with ISO/IEC 8073)
– TCP (complying with RFC 793), ISO-on-TCP (complying with RFC 1006) and UDP
– Multicast over UDP connection
– Sending e-mail via SMTP (port 25) or SMTPS (port 587) with "SMTP-Auth" for
● S7 communication
– PG communication
– Operator control and monitoring functions (HMI communication)
– Data exchange over S7 connections
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(complying with RFC 768)
With the interface via TCP connections, the CP supports the socket interface to
TCP/IP available on practically every end system.
The multicast mode is made possible by selecting a suitable IP address when
configuring connections.
authentication on an e-mail server.
Operating Instructions, 05/2017, C79000-G8976-C289-07
CP 1543-1