WAGO Modular IO System INTERBUS S Manuel de service Page 123

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ETHERNET 119
Network Communication
WAGO-I/O-SYSTEM 750
ETHERNET TCP/IP
(3)
TCP, UDP
(2)
IP
(1)
Ethernet
(physical interface, CSMA/CD)
Application protocols:
Positioned above the TCP/IP stack or UDP/IP layer are correspondingly
implemented application protocols that provide services that are appropriate
for the application. These are, for example, SMTP (Simple Mail Transport
Protocol) for e-mails, HTTP (Hypertext Transport Protocol) for www
browsers and some others.
The protocols MODBUS/TCP (UDP) and Ethernet/IP are implemented for use
in industrial data communication.
The MODBUS protocol is also positioned directly above TCP (UDP)/IP;
Ethernet/IP, on the other hand, basically consists of the protocol layers
Ethernet, TCP and IP with an encapsulation protocol positioned above it. This
serves as interface to CIP (Control and Information Protocol).
DeviceNet uses CIP in the same way as Ethernet/IP. Applications with
DeviceNet device profiles can therefore be very simply transferred to
Ethernet/IP.
Application device profiles
(e.g. positioning controllers, semi-
conductors, pneumatic valves)
CIP application objects library
CIP data management services
(explicit messages, I/O messages)
Mail client
WWW browser
...
CIP message routing, connection
management
CIP
(4)
SMTP
HTTP
...
MODBUS
Encapsulation
protocol
(3)
TCP, UDP
(2)
IP
(1)
Ethernet
(physical interface, CSMA/CD)
ETHERNET/IP
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