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WAGO-I/O-SYSTEM 750
Fieldbus Communication 259
750-880, 750-880/025-000 ETHERNET Programmable Fieldbus Controller
Manual
Version 1.0.1
12.3.2 Protocol overview in the OSI model
In order to clarify the interrelationships between DeviceNet, ControlNet and
EtherNet/IP, the following diagram presents the associated ISO/OSI reference
model.
7
Application
Layer
Object Library
(Communications, Applications, Time
Synchronization)
Safety Object
Library
6
Presentation
Layer
Data Management Services
Explicit and I/O Messages
Safety Services and
Messages
5
Session
Layer
Connection Management, Routing
Co
mo
n Industria
l Protoco
l (CIP)
4
Transport
Layer
TCP/UDP
3
Network
Layer
Internet
Protocol
CompoNet
Network and Transport
ControlNet
Network
and
Transport
DeviceNet
Network and
Transport
2
Data Link
Layer
Ethernet
CSMA/CD
CompoNet
Time Slot
ControlNet
CTDMA
CAN
CSMA/NBA
1
Physical
Layer
Ethernet
CompoNet
ControlNet
DeviceNet
N
etw
ork A
dapt
at
ions o
f C
IP
Table 185: ISO/OSI reference model