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DNP 3.0 solution for CitectSCADA

Jens NasholmCitect Pty Ltd

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Real-time Intelligence2

CitectSCADA and DNP

There is currently a new and an old version of theDNP driver supporting the DNP 3.0 standard

DNPr New driver with full support for redundancy

DNP Old

The DNPr driver is a native driver able tocommunicate with any device compliant with theDNP 3.0 standard

From January 1, 2006 a Specialty Driver support

contract is required to log DNPr support calls

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Real-time Intelligence3

Old DNP Driver

Driver Name: DNP (Latest version: 1.04.09.001)Overview:

Used successfully by some customers

Quality and functionality ok for these customers

No redundancy

Solution:Upgrade existing systems to new version of the DNPdriver

This driver should not be used in new CitectSCADAprojects

Support:This driver is not supported and customers will beasked to upgrade to the new version of the DNP driver

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Real-time Intelligence4

New DNPr Driver

Driver Name: DNPr (Latest version: 3.01.07.000)Overview:

Used by majority of customers

Full support for PLC type redundancy

New features and number of defects resolved

Solution:Where possible, the DNPr driver should be used

Driver ships with CitectSCADA v6.1

Support:

Supported by Citect Pty LtdFrom January 2006 a Support contract is required

DNP technical specialists available within Citect Pty Ltd

Defects will be prioritized and resolved based on severity

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Real-time Intelligence5

DNPr New features

Time stamped TrendsTrend events (Value & Time) are pushed directly to theCitectSCADA trend system through API

No need for customer written Cicode all handled by theDNPr driver

Record with 1ms accuracy both analog and digital datafor display in either the trending system or processanalyst

Optimizes data storage by only saving values that areinserted (or changed)

Trend files automatically expand to fit data

No polling load on CitectSCADA

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Real-time Intelligence6

DNPr New features

Time stamped AlarmsAlarm events (State & Time) pushed directly to thealarm system through API

No need for customer written Cicode all handled by theDNPr driver

Record with 1ms accuracy both analog and digitalAlarms logged from RTU devices

No polling load on CitectSCADA

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Real-time Intelligence7

DNPr New features

Support of calculated variablesCalculations can be made within the cache beforepushed into CitectSCADA

RealPower = Voltage x Current x PowerFactor (wherePower factor is 0.85)

Timestamp set to latest time from set of variables

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Real-time Intelligence8

DNPr New features

RedundancyI/O Server level redundancy provides PLC typeredundancy

No custom redundancy logics, such as dual-masterlogic, coding in the RTU required

The driver maintains a database of values received fromdevices known as the cache

The cache is updated by both event and static data

The cache is automatically updated between the I/OServers upon change of data in the DNP devices

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Real-time Intelligence9

DNPr New features

Redundancy (contd)Redundancy managed through Active State Detection

of units and exclusive port access mode

A unit becomes active if either of the following occurs

Communication between the I/O Devices fails

The unit is forced into the active state by the user

If a unit on an I/O Device is not active

No communication with I/O devices.

It does not send any DNP3 frames to the device and doesnot process any frames received from the device

I/O Servers communicate with each other to ensure thata unit is active on only I/O Server at one time

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Real-time Intelligence10

DNPr statistics

Bluescope Steel Australia2 redundant I/O servers connected via TCP/IP to 40 RTUs

2 redundant Alarm/Report/Trend servers

9000 DNP RTU tags

5000 DNP RTU calculated variables

7000 push-based digital alarms

3000 poll-based digital alarms

5000 event trends

6000 periodic trends

220@1s, 20@5s, 3500@60s, 2300@120s

RTU events are populated to the SCADA system at a rate of220 events per second in peak load situations

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Real-time Intelligence11

Sample of CitectSCADA and DNPr users

Agility Gas ServicesBarwon Region Water AuthorityBooz Allen HamiltonCairns WaterCity of Cape TownErgon Energy - Brisbane

Erie Boulevard HydropowerFrench Broad EMCGasNet Australia LimitedGoulburn Valley Water AuthorityOrigin Energy - Katnook Gas PlantOrigin Energy Spring Gully

Power & Water - Sadadeen ValleyQueensland RailwaysShrewsbury Light and CableTexas Gas TransmissionTransend Power StationsTransend Networks

TrustPower GenerationWestern Power

Iran Khodro Substation Telemetry

Kangan Power Plant

Mashhad Powerplant Wells

Sistan & BaloochestanDispatching Centre