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4
Transport Layer
- Creation and inter-
ruption of end-to-end
connections
- Flow control
- Transmission control
- Acknowledged and
unacknowledged service
- unicast and multicast
- Authentication
- Double recognition
3
Network Layer
- Addressing and routing - Address format and
routing algorithms
2
Data Link Layer
- Frame formation
- Point-to-point data
back-up
- Medium access
control
- Transmission reli-
ability by CRC test
bytes
- Coding and medium
access
- Framing
- Data coding
- CRC fault test
- predictive CSMA
- Collisions recognition
and avoidance
- Priority assignment
1
Physical Layer
- Making electrical
connection
- Laying down all
physical and me-
chanical parameters
- Medium specific
- Interface and Modulation
L
LAN
Local Area Network
Library
Collection of functional modules available for different IEC 61131-3 pro-
gramming applications in WAGO-I/O-PRO 32.
LNO
The LNO is the German Lon Users Association (Lon Nutzer Organisation
e.V.). This is an association for companies, institutions and distributors us-
ing the LonWorks
®
technology in the German speaking territories. Current
information concerning the LNO and the member list can be found in Inter-
net under: http://www.lno.de.
LNS
LNS (LONWORKS
®
Network Service) is a network operation system for
LONWORKS
®
networks.