Glossary
206 SIMATIC NET NCM S7 for Industrial Ethernet
C79000-G8976-C129–06
B.2 Industrial Ethernet

Base address

Logical address of a module in S7 systems.
SFor PROFIBUS
The PROFIBUS base address is the address starting at which all addresses
that are calculated automatically in the project are assigned.
SFor Industrial Ethernet
The base MAC address is the address starting at which all addresses that are
calculated automatically in the project are assigned.

Ind. Ethernet station

A station is identified by a –> MAC address in –> Industrial Ethernet.

ISO–on–TCP

Transport layer connection (layer 4 communication complying with ISO)
simulated on TCP.
On an ISO-on-TCP connection, messages can be exchanged in both directions.
TCP provides the data flow communication without segmenting the data into
messages. ISO, on the other hand, is message-oriented. With ISO-on-TCP, this
mechanism is simulated on TCP. This is described in RFC1006 (Request For
Comment).
ISO-on-TCP connections allow program/event-controlled communication via
Ethernet from a SIMATIC S7 PLC to
SSIMATIC S7 PLC with Ethernet CP
SSIMATIC S5 PLC with Ethernet CP
SPC/PG with Ethernet CP
Sany system