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1MRS751852-MUM
MicroSCADA Pro
System Overview
Technical Description
SYS 600 *9.0
4.5.2. Networks
LAN, LONWORKS network and serial lines can be used for communication in a
MicroSCADA system.
LAN
LAN (Local Area Network) is a network used in a geographically small area, for
example, inside a company. In a MicroSCADA system, LAN is usually used for
communication between the base system, front-ends and workstations, and for upper
level communication. It has a large capacity for data transmission. Usually TCP/IP
(Transmission Control Protocol/Internet Protocol) is used for data transmission in
LAN networks. TCP/IP provides communication across the connected networks of
computers, with several protocols.
LONWORKS network
LONWORKS network is a network where LonTalk is used for communication in
distributed networks. With the L
ONWORKS communication technology it is possible
to build a protection and control system including more than one network control
center, NCC. The NCCs receive status values, measurements and time-tagged
events from process units. L
ONWORKS network is built around a star-coupler, which
connects other devices into a star form.
Lonnet
Fig. 4.5.2.-1 An example of a LONWORKS network
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