DCS??

1
????

• DCS??

2
??????
?????
AI
A/D
DI
AO
D/A
DO

• ????????????,?????? ?????,?????????,??????? 420
  mA?
• ????????????,????????????????,???????????????,?
  0? 1?????
• ????????????,??????A I??????A/D??????????,????????
  ???,???????????????,??D/A???AO???????? E/I ??420
  mA,? I/P ???0.21.0 kgf/c?,??????????

3
??????
?????
AI
A/D
DI
AO
D/A
DO

• ???AO
• ???AI
• ???DO
• ???DI

4
DCS????--??????
(Supervisor) ????
(Field Bus) ????
?? (Field)
DO2
Field Controller
?? ??? (Data Highway)
DO1
AI 1
TT
AO1
????
AI 2
LT
SRC
AO2
DO3
DO4
5
DCS????
?????
AI
A/D
DI
AO
D/A
DO

• ??Field
• Field Bus (Field Interface)
• Data Highway
• Man-Machine Interface
• Supervisor

6
DCS(Distributed Control System)???????--??????

• ????,????
• DCS????????Field Controller (?????)

????
????? (Data Highway
Field Station
Field Station
??PLC
Field Station
Field Controller
FCS
????(Field Bus)
??(Field)
7
????

• ????
• ??????
• ????
• ????
• ????

Display
???(Flowchart)
Trend???
8
????
? ? ? ?
(Field Interface) ????
?? (Field)
AO AI DI DO
Field Controller
9
????????

• ??(Field)????????

P
Control room operator stations
T
Fieldbus
L
Control systems (DCS or PLC)
F
10
???? ??
Field Junction box
I/O Sub-system
Multicore Cable
Modbus
PROFIBUS-DP Fieldbus cable Ethernet
INTERBUS
ControlNet
MTL Process I/O
11
???? ??
Power Supplies (Optional Redundant)


Bus Interface Module

IO Modules(???)


Configuration Memory Module

LAN connections


Field Terminals Board

12
PLC(???????)

• ????????????,???on-off??
• ?????????????
• ??????PID

13
??DCS

• ???????

Needed vendor-specific interface
Application A
Application B
X
Y
Z
X
Y
Z
DCS of other make
PLC of other make
CENTUM CS CS 1000, CS 3000
14
???OCS(???)

• ?????????(Smart Transmitter)
• ???????,???????????A/D??
• ????(????),?????
• ???????,????????

Connectable with single interface
Application A
Application B
Minimized Development Cost
Application Reusability
OPC Interface
DCS of Other Make
PLC of Other Make
CENTUM CS CS 1000/CS 3000