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ANSI X3.28/SRIO DPA
CONFIGURATION GUIDE
A071-0CG-2.02-2 Restricted
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Figure 1 System Overview
Master
Control
System
Master
DPA
Master
Command
Master
Response
WESMAINT
II
Display
Data
Operator
Request
D20
Peripherals
ANSI X3.28
DPA
SPABUS
DCA
D20
DCA
SPA
System
Substation
Control
System
(SCS)
D20
Command
D20
Response
WESDAC
Interface
Node
DCA
Command
DCA
Event
DCA
Response
DCA
Command
DCA
Event
DCA
Response
SPABUS
Reply
SPABUS
Request
SPABUS
Response
SPABUS
Command
ANSI
Command
ANSI
Response
WIN
Command
WIN
Response
WIN
Event
WESMAINT
Display
WIN
Command
WIN
Response
WIN
Event
Project: G:\APPL\A070\R100\DOC\EASYCASE\
Chart: D20 data flow (FS)
Filename: d20_flow.dfd
Last modified on: Nov-03-1992
by User: andy