Summary
Industriële netwerken_samenvatting
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Industriële netwerken samenvatting van geziene leerstof
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19-20 Industriële netwerken1 Inhoud
2 (Hfdst 1) - Netwerking: ................................................................................................................... 3
2.1 Voordelen: .............................................................................................................................. 3
2.2 Nadelen: .................................................................................................................................. 3
3 (Hfdst2) - Begrippen en modellen: ................................................................................................. 4
3.1 Model om netwerken te helpen kiezen: ................................................................................ 4
3.1.1 ERP Enterprice Resource Planning .................................................................................. 5
3.1.2 MES Manufacturing Execution System ........................................................................... 5
3.1.3 SUPERVISIE, PROCES, FIELD ............................................................................................. 5
3.1.4 hoger in de piramide ....................................................................................................... 6
3.1.5 Lager in de piramide ........................................................................................................ 6
3.2 Synchrone versus asynchrone communicatie: ...................................................................... 6
3.2.1 Synchrone communicatie ................................................................................................ 6
3.2.2 Asynchrone communicatie .............................................................................................. 6
3.3 BITRATE EN BANDBREEDTE .................................................................................................... 6
3.3.1 Bitrate .............................................................................................................................. 6
3.3.2 Bandbreedte .................................................................................................................... 6
3.4 Het OSI 7-lagen model ............................................................................................................ 7
3.4.1 Laag 1: fysieke laag .......................................................................................................... 7
3.4.2 Laag 2: Datalinklaag ......................................................................................................... 8
3.4.3 Laag 7: applicatielaag ...................................................................................................... 8
3.4.4 Samenvatting OSI tot nu toe ........................................................................................... 9
3.4.5 Profibus DP - Profibus PA ................................................................................................ 9
3.4.6 Laag 3: Netwerklaag ...................................................................................................... 10
3.4.7 Laag 4: Transportlaag .................................................................................................... 10
3.4.8 Laag 5: sessielaag........................................................................................................... 10
3.4.9 Laag 6: presentatielaag.................................................................................................. 10
3.4.10 Protocolstack ................................................................................................................. 10
4 (Hfdst3) – Profibus ........................................................................................................................ 11
4.1 Protocol Stack van alle Profibus protocols .......................................................................... 11
4.2 Laag 1: Fysische LAAG: RS485............................................................................................... 11
4.2.1 Profibus basisprincipe ................................................................................................... 12
4.2.2 Repeater ........................................................................................................................ 12
1
, 4.2.3 Topologie ....................................................................................................................... 12
4.2.4 OLM ............................................................................................................................... 14
4.3 Laag2 : FDL : Fieldbus datalink layer .................................................................................... 15
4.3.1 Masters en slaves .......................................................................................................... 15
4.3.2 Adressering .................................................................................................................... 16
4.3.3 Conclusie ....................................................................................................................... 16
4.4 Laag 7: Applicatielaag ........................................................................................................... 16
4.5 Profibus PA ............................................................................................................................ 17
4.5.1 1. Fysische eigenschappen ........................................................................................... 18
5 (Hfdst) - Hart ................................................................................................................................. 19
2
, 2 (Hfdst 1) - Netwerking:
2.1 Voordelen:
Minder bedrading, minder gewicht
Uitgebreide diagnosemogelijkheden
Integratie van nieuwe, intelligentere producten
Nieuwe controlestrategieën: centraal beheer met lokale autonomie
Gecentraliseerd onderhoud
Informatie is snel en overal bereikbaar
Toevoeging van nieuwe deelnemers
Nauwkeurigheid (digitaal)
Redundantie
Verhoging van de beschikbaarheid
Koppeling van ongelijksoortige apparatuur
Productieplanning wordt flexibeler
Gemeenschappelijk gebruik van resources
2.2 Nadelen:
Onderhoudspersoneel
Meerdere leveranciers...
Versiebeheer van CPU’s, besturingssystemen, remote I/O en compatibiliteit is vaak complex.
Wildgroei
Netwerkafhankelijk!!
Multimeter??
3
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