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System
Front-End Station
Computer 1
Front-End Station
Computer 2
Alarm and
Event Printer 2
LA36W
Redundant Station LAN TCP-IP
Printer Server 2
LAN-Interface
to LV SCMS
Engineering Workstation Disturbance Recorder
Evalution Station
to
Central Station
Manual
Switch
Bay control unit
REC316*4
Bay control unit
REC316*4
4 x 132kV Cable Line 1 x 132kV Bus Coupler Trafo Interlocking 132kV Common Alarm
Differential protection
RET316*4
6 x 500RIO11 DI
SACO64D4 Auxiliary alarm unit
3Ph and neutral OC
SPAJ140C
Bay control unit
(loose delivery)
4 x 132/11kV Transformer Feeder
SPAJ110C Stand by
earth fault
overcurrent
Prot.
SPAJ115C Restricted
earth fault
Protection
Neutral
earth fault
Prot.
SPAJ110C
SPAJ115C Restricted
earth fault
Protection
132kV Side 11kV Side
132kV BBP / BFP
BBP/BFP Central unit
REB500
10 x BBP/BFP Bay unit
REB500
Bay control unit
REC316*4
Bay control unit
REC316*4
AVR & Tap Control
AVR and tap control
T1 type REGSys Fault Monitoring System
Indactic I650
Coaxial cable
Telephon
Modem
SACO64D4 Auxiliary alarm unit
AVR and tap control
T2 type REGSys
Repeater
(loose delivery)
1 x 500RIO11 DO
Service
Modem
132kV Modem
NSK
Fallback
Switch
LDCs Interface from Station Computer 2 IEC870-5-101
LDCs Interface from Station Computer 1 IEC870-5-101
AVR and tap control
T3 type REGSys
Line distance prot.
REL316*4
AVR and tap control
T4 type REGSys
(loose delivery) (loose delivery)
Bay control unit
(loose delivery)
HP Color
Laserjet
HP Color
Laserjet
EF and OC
SPAJ110C
500RIO11 , 16DI
Analog alarm unit
SACO16A3
Station Alarm Unit Station Alarm Unit
SPAJ110C
SPAJ110C
Earth fault
overcurrent
Prot.
Tertiary
Earth fault
Prot.
Repeater
Control Protection
Analog alarm unit
SACO16A3
FMS Fault Monitoring System
10 x 132kV
4 x 11kV
1 x spare
SACO16A3 R
SPAU140C
Synchrocheck
SPAJ140C Phase and
neutral
overcurrent
Prot.
SACO16A3 R
SACO16A3 R
132kV analog
Input
132kV FOX
Equipment
11kV analog
Input
PTUSK Scope
11kV Modem
NSK
SACO64D4 Auxiliary alarm unit
Main 2
o/e
o/e
SACO64D4 Auxiliary alarm unit
Ether
net
Verbindung zu E4
FO
RS232
Pilot wire diff. prot.
SOLKOR R/Rf.
B69
Überstrom
Main 1
Siemens 7SD610 für
E19 Verbindung
Industrial Automation 16 1.5 Control System Architecture
Centralized (Hierarchical) Control Architecture
Sensors, Actors
PLCs
Group
Control
Group
Control
Group
Control
Central Computer
(Mainframe)
Classical, hierarchical, centralized architecture.
The central computer only monitors and forwards commands to the PLCs
plant
Industrial Automation 17 1.5 Control System Architecture
plant
Decentralized Control System (DCS)
engineering
workstation
operator
workstation data logger
controller controller controller controller
field bus
plant bus
all controllers can communicate as peers (without going through a central master),
restricted only by throughput and modularity considerations.
Note: Honeywell's "DCS™" stands for "Distributed Control System", it is not a decentralized control system, but
a control system for the process industry.
hierarchical
(vertical communication)
peer-to-peer (horizontal communication)
Industrial Automation 18 1.5 Control System Architecture
Plant with process (e.g. chemical) and electrical (substation) parts
horizontal communication
CN Connectivity
Server (and router)
IEC 61850
connectivity server
plant network Engineering
bay bus
ProcessNetwork substation network
interface
SAN IEDs
CI871
Aspect Servers
controller
PPBI
PPBI
PPBI
PPBI
PPBI
PI = Process Interface
MU = Merging Unit
PPNI
PPNI
PPNI
PPNI
PPNI
PI
PI
PI
MPUI
MPUI
Profibus
Engineering
Engineering
Profinet RSTP
LANs are
separate:
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