WAGO 750-830 Manual page 344

344 • Glossary
L
LAN (Local Area Network)
A LAN is a spatially limited, local network for permanently linking com-
puters over shorter distances. Data transfer can take place via ETHERNET,
Token Ring and FDDI, as well as wireless (WLAN).
Library
Collection of Modules available to the programmer in the WAGO I/O PRO
CAA programming tool for creating control programs in accordance with
IEC61131-3.
LON (Local Operating Network)
LON is used as a fieldbus for building automation. It was developed 1990 by
Echelon and enables, as does KNX, the communication between different
devices, independent of the manufacturer and active application.
M
MIB (Management Information Base)
MIB is a collection of information about all parameters, which can be
handed over to the management software with a request via SNMP. This en-
ables remote maintenance, monitoring and control of networks to be per-
formed via SNMP protocol.
MODBUS
MODBUS is an open protocol based on the Master/Slave principle. The
MODBUS links the master with several clients, via either serial interface or
ETHERNET.
Three data transmission types are available: MODBUS/RTU (binary data
transmission), MODBUS/TCP (data transmission using TCP/IP packets) and
MODBUS/ASCII (ASCII code transmission).
Module
Modules consist of functions, function blocks and programs.
Every module is made up of a declaration part and a body. The body is writ-
ten in one of the IEC programming languages AWL (statement list - STL),
ST (structured text), AS (process structure), FUP (function plan) or KOP
(contact plan).
WAGO-I/O-SYSTEM 750
BACnet/IP Controller