Technical data
  Fieldbus Communication • 209 
  BACnet/IP 
WAGO-I/O-SYSTEM 750   
BACnet/IP Controller 
4.2.1.4.1 Automation Level 
The automation level includes alarm organization and the operation of sys-
tems. 
Areas of use 
•  Monitoring 
•  Optimizing 
•  Control 
•  Regulating 
•  Reporting 
4.2.1.4.2 Field Level 
On this level, individual devices and alarm notifications, e.g. the recording of 
states and measured values, are controlled. 
Application notes 
•  Trade shows 
•  Switching 
•  Setting 
4.2.1.5 BACnet in the ISO/OSI Model 
BACnet works in an object-oriented manner on the basis of the ISO/OSI 
Model. Data communication takes place on three levels. 
BACnet/IP
ISO 8802-3
Ethernet
MS / TP
RS 485
Dial-up
PTP
RS 232
LonTalk
BACnet Application Layer
BACnet Network Layer
BACnet Virtual Link Layer
Anwendungsschicht
Vermittlungsschicht
Sicherungsschicht
Medienzugriff
Bitübertragungsschicht
ISO 8802-2
Type 1
ARCnet
Fig. 4-14: BACnet layers in the ISO/OSI Model G083006d 










