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Struktury automatizace průmyslového podniku

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30.9.2013<br />

Busses and processors in industrial plants<br />

Process pictures<br />

disk<br />

instrument bus<br />

(mimic board)<br />

Operator panel<br />

Mimic board<br />

open network, WAN<br />

Process Data Base<br />

workstation bus<br />

Logging<br />

station<br />

station<br />

plant network (500m .. 3 km) – includes control network<br />

processor pool<br />

P<br />

P P C<br />

I/O MEM I/O<br />

PLC nodes<br />

(multi-processors)<br />

P P C P<br />

MEM BC<br />

node bus<br />

fieldbus (30m..2 km)<br />

directly coupled<br />

input/<br />

output<br />

control<br />

stations<br />

sensor bus<br />

backplane bus<br />

sensor bus (0,5.. 30 m)<br />

transducers<br />

valve thermo-couple<br />

position<br />

M<br />

motor<br />

plant (Werk, usine)<br />

Sítě – to je směs protokolů<br />

control<br />

center<br />

IEC 870-6<br />

SCADA<br />

control<br />

center<br />

Inter-Control Center Protocol<br />

ICCP<br />

control<br />

center<br />

HV<br />

High<br />

Voltage<br />

Modicom<br />

IEC 870-5 DNP 3.0 Conitel RP 570<br />

serial links (telephone)<br />

RTU RTU RTU RTU Remote Terminal Units<br />

Příklad:<br />

Elektrárna<br />

COM<br />

RTU<br />

substation<br />

substation<br />

MV<br />

Medium<br />

Voltage<br />

FSK, radio, DLC, cable, fiber,...<br />

RTU<br />

RTU<br />

houses<br />

RTU<br />

RTU<br />

LV<br />

Low<br />

Voltage<br />

Pro pomalé rychlosti a velké vzdálenosti lze použít silové rozvody nebo telefonní linky<br />

Problem: rozmanitost protokolů, dotových formátů, semantik..<br />

55<br />

27

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