KSPO System Modernization
(KSPO - Abbreviation for Computer based
System for Operator Support)
KSPO is distributed information system for Operator
Support at Kozloduy Nuclear Power Plant. The System architecture
is build on distributed system of doubled programmable controllers
and PC based Work Stations. The doubled programmable controllers
acquire and process signals from the object. The communication
bus integrates the controllers with the Operator Work Stations.
The signals are generated by sensors and transducers, which convert
them into standard 4-20 mA signals, RS 232 codes . In addition
to that a substantial amount of signals are acquired from Digital
Computer ÈÂ500Ì. Special modules, converting the signals from
proprietary bus to signals, which the buss of the Distributed
System can handle and send to the points. where they are needed.
The workstations acquire data, from the bus and after additional
processing, show it on the Workstation displays.
The Workstations for one unit are :
Four Workstations for:
The Reactor and Turbo- generator Unit Operators;
For the Operator on Duty for the Unit
and
For Engineering and Maintenance.
A higher layer of the network is provided for the Operator on
Duty of the Division of the four units, Router, connecting the
system to the Administration Information System and Analytical
Station.
Each station acquires through the bus more than 6000 variables.
These variables are shown in a different format, understandable
by the operators. The comprehensive representation of the information
and the intuitive in- depth navigation helps the operators to
take decisions, correctly and on time. The cause – effect relation
alleviates the failure analyses.
The four unit workstations have equal software
configurations, with the exception of Engineering Station, which
has R/W CD, printer attributes. The Engineering Station is separated
in a special compartment, together with the printer, where the
Engineering and Maintenance personnel has access.
Each Workstation has access to the printer.
The Workstation screens are extremely informative.
Over 35 mnemonic screens are at the disposal of the operators.
The number of shown variables per screen is 50- 60. as average.
There are , however, mnemonic screen with the extreme number of
variable – 100.
The variables are also presented as bar-graphs,
in trends and also as area( volume) filled in with different color,
according to its current value etc.
The navigation in-depth allows presenting the variable data in
a progressive detail-ness.
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Twenty historical screens, each of them containing
16 parameters, with fixed configuration are existing on each Workstation.
This history can be observed at random time segments. There is
a special band o the bottom of each historical screen, where the
history picture of status of the controllers is shown. This allows
the observer to see if some wrong status of the controllers can
influence of the correct historical picture of the parameter variables.
There is option, the operator to develop his customized historical
screen with eight freely configurable parameter variables.
Screens for discrete parameter historical picture of up to 50
variables are available.
The Workstations have the following additional
functions:
Alarm journals;
Free selectable parameters report printing out;
Diagnostic functions;
Data dossier editing;
Help and others.
The Analytic Workstation and the Division Operator on Duty Workstation,
have all the information, gathered from the both units – 3 and
4 and all have sophisticated means for analyses, printing out
and history archiving.
There are two options for Historical analyses
on these Workstations: Online and Offline.
The Online mode is self-explanatory. The offline mode allows the
gathered information on a certain Workstation to be copied in
the Analytical Workstation and subsequently analyzed and further
processed. In fact, there are six equal historical images, stored
on different stations- the three workstations for the Operators
in the unit, the Engineering Workstation and the Workstation for
the Operator on Duty of the Division of the four units and the
Analytical Workstation.
The Data Dossiers of different Workstations can be edited on the
Analytical Workstation and then downloaded through the communication
bus to the specific Workstation.
The ROUTER Workstation implements transferring of the full data
online to SQL tables, which are accessible to the Administrative
Information System. The Router has an access to the both unit
sub-systems, whre from it gathers the necessary data. In order
to ensure data transferring to the Administrative System ad has
an access to the unit sub-systems, the Router has two LAN communication
controllers.
All Workstations have unified time. It is synchronized through
the Router Workstation and is transferred to each KSPO Workstation.
Reference for this product
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