scada presentation and architecture

8/10/2019 SCADA Presentation and architecture

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The Vannet Group, LLC

SCADA Made Simple

SCADA Monitor ing


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SCADA Made Simple


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SCADA Made Simple

What is SCADA? History of SCADA

Various types of SCADA systems

Differences between systems

Why the need for monitoring?

How SCADA applies to Water and Wastewater The Mission monitoring RTU

Questions and Answers


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WHO Am I? Environmental Health Specialist

(US ARMY)

Private Industry Perdue Farms,

Inc

Small Town WATER and

WASTEWATER Operator

State Water System Inspector

State Capacity Development

Coordinator

EPA- Small Systems TA Grants

and Small System ToolDevelopment; Capacity Dev

Coordinator, Co-lead on Op

Cert Program, and all around

nice guy.

(PS-Checks in the mail)


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Importance of Communication

Ability to exchange ideas/desires/needs

Express yourself

Send a message

Tower of Babel (Bible)


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Communication- Imperative


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What is SCADA?

SCADA systems were first used in the 1960s

The acronym SCADA meanssupervisory

control and data acquisition

SCADA systems are used to monitor and

control plant or equipment in industries such as:

TelecommunicationsEnergy, oil and gas refining

Transportation

Water and Wastewater monitoring and control


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Concept:MONITORS INPUT SIGNALS

FROM A PROCESS

MANAGES THE DATA

PRODUCES OUTPUT SIGNALS

THAT INFLUENCE THEPROCESS.


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Old School Communications


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Sampling Points


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Pre-SCADA:Telecommunication & Miss Jenkins


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4 VOLUNTEERS


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Physical Components

Remote data monitoring units,

Communications platform and a

Central host or master that manages

entire system.


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First Generation SCADA


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2ndGeneration


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3rdGeneration


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What is SCADA cont.

SCADA systems can be relatively simple,

such as ones that monitor environmental

conditions of a small office building, orvery complex, such as systems that monitor

the activity in a nuclear power plant or

control a municipalitys water systemthrough tank, pump, and well control.


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What is SCADA cont.

SCADA systems gather information such as:

Pump Runtimes Flow

Water Levels Pressure

Amperage Temperature

and transfers and stores the information back to

a central site (computer).


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What is SCADA cont.

SCADA systems can monitor specific alarmsetups such as:

Phase Loss

High Temperature

Excess Pump Starts

Analog Thresholds

High or Low Level

Pump Failure

Intrusion

Power LossGenerator Running


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Types of SystemsUsed in our industry

Auto Dialers

Private Radio

Wireless Data Network Based


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Differences Between Systems

Method of transmitting data

How often the data is transmitted

Amount of data transmitted

Cost!!!


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Auto Dialers

Good solution for basic alarms

Need a dedicated phone line

Limited RTU mobility if you want to move it

You have to deal with the phone company!

Limited features and functionality


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Private Radio

Optimal for advanced applications, i.e. oil,gas and storage plants

High number of inputs and outputs

Generally custom designed Single database computer (control center)

Costly software

Setup is time-consuming

On going maintenance costs


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National Wireless Data

Network SystemThe Newer Technology Options

Uses the public cellular network system

Low equipment and installation costs

No costly software

Internet based access

Mixed deployment/Roll out over time


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National Wireless Data

Network System

Ease of installation

Scalable from 1 unit to X units Compatible to existing HMI SCADA

software programming mods

Capable of meeting or exceeding homelandsecurity and AWWA standards with 128-bitencryption


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Is Cellular Reliable?

The short answer isYES!

Uses the data channel, not the voice Each transmission is confirmed end to end

All transmissions are encrypted

After disasters, cell towers are brought in ontractor trailers and communication is restored


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1. Field RTUThe Box

2. National Wireless Data Networks

3. Centralized Web Software

4. Alarms To Virtually Anything

5. Secure Customer Web Site

Pagers

Fax

Email

Cell

Phones

Basic Components of Internet EnabledMonitoring & SCADA Systems

RTU

Centralized Web

Based Software

Alarms &

Data

Customer

Website2.

3.

4.

5.

Internet

1.

Network Carriers


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Why the need?


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Why the need?

Ever increasing regulatory restrictions arebeing imposed on Water and Wastewater

operators for efficient & safe system

operations such as Class 1 Reliability (EPA,DEQ, etc)

Both current & historical data from

electronic databases greatly simplify theregulatory reporting process

Redundancy to larger SCADA systems all

ready in place


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The tank does

that all the

time. Its OK.


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Applications

National Public Wireless Data Networks

combined with Internet Data Access are now a

permanent contender for automation in the

Water & Wastewater Industry.


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How It Applies to

Water/Wastewater Wireless Technology Can Be Applied In

A Variety of Remote Applications

Water Pumping Stations Sewer Lift Stations

Level / Flow / Pressure Applications

Tank Storage Applications

Storm Water / Sewer Flow Applications

Meter Reading Applications

Water Well and Tank Control

Rainfall Monitoring


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How It Applies to

Water/Wastewater cont

Profiling and understanding:

Flow Data Rainfall Data

Level Data Surcharge Data

Pump Activity Other Parameters

is crucial for effective operations.

New wireless technologies are now

available for very remote sites.


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Typical Lift Station

Rainfall Monitoring


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Water Tower Monitoring


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Water Plant Monitoring

Tank and Well Control


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Very Remote

Location?

Solar Power isthe Answer!


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Map location of your stations


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E l S li S ll P i


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Example Supplier Sell Points

ReliableMoney Saving Features

PrepackagedEase of Installation

SimpleVery Affordable

M110 Full Monitoring System

M800 Full SCADA M200 Solar Station

M81 CSO/SSO Monitoring

INCLUDES:Secure Website,Graphics & Software, Alarms,

Mgmt. Reports, Runtime

Reports, Maintenance Logs


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Bt wut r t costs?

Data Loggers with

modems costs on the

order of $1,100 to

$1,800

A small SCADA

system cost on the

order of $1,400 to$4,600


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SCADA Security


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Security Terminology

1. Redundancyof the system. Redundancy refers to the

ability of certain components of a system to assume

functions of failed components without adversely affecting

the performance of the system itself.

2. Robustnessof the system. Robustness refers to the

degree of insensitivity of a system design to errors in the

estimates of those parameters affecting design choice.

Robustness or those properties that make the system less

vulnerable to attack (stability).

3. Resilienceof the system. Resilience is the ability of a

system to operate close to its closest possible design

technically and institutionally over a short run after an

attack, such that the losses are within manageable limits.


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Ways to Prevent Attacks

Sh ld M S t U SCADA?


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Should My System Use SCADA? Todays SCADA systems are able to take advantage of the evolution from mainframe

based to client/server architectures. These systems use common communicationsprotocols like Ethernet and TCP/IP to transmit data from the field to the central

master control unit.

SCADA protocols have also evolved from closed proprietary systems to an open

system, allowing designers to choose equipment that can help them monitor their

unique system using equipment from variety of vendors

SCADA systems are widely used to monitor and control U.S. critical infrastructure

utilities such as Electrical Power Plants and Water Distribution Centers

While SCADA protocols are more open today, there is no clear consensus of which

protocol is best. IEC 60870-5 series and DNP3 have many similarities but are not

100% compatible.



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SCADA systems, like other computer systems, are subject to many common security

attacks such as viruses, denial of service, and hijacking of the system

Because SCADA systems use leased telephone lines, twisted pair cable, microwave

radio, and spread spectrum techniques, they have many of the same security

vulnerabilities

Should My System Use SCADA?



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The Explosive Growth In National Wireless Networks, Personal

Communications, and the Internet Provide Great Flexibility and

Scalability For Automation Of Water and Wastewater

Applications

No Need For Large Capital Outlay for Proprietary WirelessNetwork Build-out

Can Be Cost Effective and Deployed in a Variety Of

Applications

- Rural, Suburban, and Urban Sites- High Cost Sites

- Applications that Require Redundancy

- New Installations, Upgrades, and Replacement Sites

Should My System Use SCADA?


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Checklist

Section 1: SCADA General Questions

(functions, reliability, staff trained?)

Section 2: Communication Pathway

(Reliable: power failure, weather, hardware

to software) Section 3: Security

Questions?


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Questions?

Think of


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Think of

More than Just Operators


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The Vannet Group

Steve Clark

866-616-8263

[email protected]

A Service Disabled Veteran Owned Small Business

Visit Us At:
mailto:[email protected]:[email protected]

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