Hybrid SCADA

Combining Traditional SCADA

with Cellular Telemetry

Or Managed Cellular to Web SCADA

Presented by

John K Collings

MISSION Communications

New Options For Wireless Monitoring & SCADA

Overview

What This Presentation Will Cover:

• Hybrid Success Stories – It Already Works- Combining Traditional SCADA with Cellular

• Digital Data Cellular Networks Today– Not CDPD, not Dial Up

• What Are They– How Do They Work– How Well Do They Work– How Much Do they Cost

• Off The Shelf Cellular or Managed Cellular

Success Stories

Tuscaloosa Alabama

• 100+ Water and Waste Water Sites• Original Quotes Were 6 Million +• CH2M Hill mixed managed cellular in at 35% of

the sites and winning bid was approx 4.5 million• Managed cellular units come into Intellution via

OPC link

• Beaufort/Jasper, South Carolina• Gresham Oregon

Digital Data Cellular Networks Today

– Original Efforts– Dial Up– CDPD

– Now Have 3G Cellular Networks– Nationwide, All Carriers– SMS (Short Message Service – Text Messaging)– UDP – TCPIP– GSM/GPRS, CDMA/1XRTT– 28 kbps – 1,000kbps– Public/Private IPs

How Does Cellular Data SCADA Work?Most All Have 4 Parts:

1. Field RTU– PLC/Some Controllers and Cell Modem

2. Cell Site– Encrypted Transmissions– Cellular, But Not Voice– New 3rd Generation Data: GPRS & CDMA– Available On All Cell Providers

3. National, Wireless Data Networks – Private/Public IP– NAD– No Custom Routes– Standard Data Pricing

4. Customer HMI– Live or Data Dumps– Non Standard Polling– Internet or Cell Modem

PLC / Modem

Local Tower

Cell Carrier Network

Customer HMI1.

2.

3.

4.

IS - 41

Internet or Cell Modem

Cellular Data Using Off The Shelf Components

Managed Cellular Data

How Does Managed Cellular SCADA Work?Has 5 Parts:

1. Field RTU– Standardized– Power Supply, Radio, I/O, Modbus– Connects to Controller or PLC

2. Cell Tower– Cellular, But Not Voice– New 3rd Generation Data: GPRS & CDMA– Available On All Cell Providers

3. National, Wireless Data Networks– Private “Pipes”, Increased Security– Flexibility for Permanent Connections

4. Managed Central Servers– All Carrier Issues/Data Managed– Flat Fees

5. OPC Database at Customer HMI– HMI Scans RTU Tags– Redundant Servers Can Retrieve Data

Managed

RTU

Local Cell Tower

Cell Carrier NetworkCentral Managed Servers

OPC Database and Customer HMI

(With

Redundancy)

2.

3. 4.

5.

IS - 41

VPN, Frame and Internet

Backup

Integrated HardwareWith Cell Radio and Digital/Analog I/O

Private Network

How Well Does It Work

How Well Does It Work…Depends On Needs

• If Only Need Data Logging…Works Great– Data Can Come In Late And No Problem– Many Providers…Very Effective And Cost Efficient

• If Need Reliable Alarms…Only A Few Providers– New Industry…Experience Counts

• If Need Reliable Realtime Data…One Provider– Realtime Is Hard To Do Reliably– The Best Average End To End Up Time Of 99.7%

Why Consider Managed Cellular In A Hybrid System

Why Data Cellular SCADA:

• Usability– Very Simple & Flexible

• Reliability– End To End Uptime: Can Be 99.7+%

• Survivability– Proven In Hurricanes And Severe Storms

• Security– Meets AWWA & Homeland Security Standards

Why Consider Managed Cellular

Some Of How It Can Help:

• Data Cellular SCADA– From Box To Running In A Morning– Information To You Anywhere…Securely– Very Simple To Install, Operate & Service– Fits Easily Into Existing SCADA Systems

• Use It For:– Stand Alone Sites Where This Is All You Need – Backup to Existing SCADA Sites– Fill-In For Hard To Reach Or Lower Priority Sites

How Much Does It Cost

How Much Does It Cost

• Systems Have Two Parts– A Complete RTU And An Annual Service Fee Per RTU– Some Have Flat Rate Fees, Some Charge Over Use

• Depends If Need Daily, Hourly Or Realtime– Hourly RTU’s $1,200 Range; $300 - $350 Annual Fee– Realtime RTU’s $2,000 Range; $550 Annual Fee

• Costs vs Dialers or Traditional SCADA

The Best News: Mix and Match

• Don’t Give Up One For The Other• All Can Co-exist On The Same System• Use National Data Networks:

– High cost sites– Poor performance sites– Redundancy– Outlying sites– New projects– Upgrades and replacements

Conclusion

Conclusion• Data Cellular Systems Are Here To Stay• They Meet Security and Performance Needs• The Networks Continue To Upgrade and Expand• It’s A Competitive Environment:

– Performance Is Going Up– Prices Are Going Down

• Data Cellular SCADA Systems Are Now A Permanent Contender For Your Monitoring and SCADA Business