Siemens S7 Manual de usuario Pagina 206

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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.
S For PROFIBUS
The PROFIBUS base address is the address starting at which all addresses
that are calculated automatically in the project are assigned.
S For 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
S SIMATIC S7 PLC with Ethernet CP
S SIMATIC S5 PLC with Ethernet CP
S PC/PG with Ethernet CP
S any system
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