The Current State of SCADA

Arlen Nipper - Cirrus Link

Rob Coulter - IBM

How can we apply technology to:

• Mitigate environmental risk?

• Detect leaks earlier?

• Resolve problems faster?

• Manage audit and regulation more effectively?

• Run operations more efficiently?

Instrumented

Interconnected

Intelligent

SCADA

Host

1

Multi-Drop

Network

Protocol X

3 5

4 2

Basic SCADA Architecture

SCADA Protocols & Applications: The Good, The Bad, and The Ugly

SCADA Protocols & Applications: The Good, The Bad, and The Ugly

Allen-Bradley DF1

Allen-Bradley DH+

Allen-Bradley EN/IP

Amocam

ARCNet

ATS

BITbus

CANbus

CA

CCM2

CDCI

CDCII

Conitel

DeviceNet

Daniel

DL130

DNP 3.0

Elliott

Enron Modbus

F&M

Ferranti MK2A

Galveston-Houston

GPE

GSI

Harris 5000/5500/6000

Hansa S002

HART

Hayes

Honeywell DE

Kodata

L&J

LANDAC

Landis & Gyr

Micromotion Flowscale

MODBUS ASCII

MODBUS RTU

MODBUS Plus

MPS9000

MTS

Omron Host Link

Optomux

PERT 2631

Plessey TC6

RDACSII

REDAC 70H

RNIM

Siemens 3964R

Siemens RK512

SLIP

SNET -I

SNET –II

GE SRTP

TANO Model 10

TANO Model 100

Tejas

Total-Flow

Transit Bus

TRW 9550

Valmet Series 5

Transmitton MT700

TRW S-70

TRW S-703

Varec

Wesdac 4F

WISP

Wireless HART

Poll / Response Latency

Example Case - Polling Modbus over VSAT Assumptions: - 16 remote sites on one logical channel - 1 poll for digital input values - 1 poll for analog input values Establish TCP/IP socket connection from the SCADA Host to the remote site: 4 seconds Send the poll for digital inputs: 4 seconds Send the poll for analog inputs: 4 seconds Tear down the socket connection: 2 seconds ------------------------------------------------------------------------ Total time to poll one site: 14 seconds 14 sec / site X 16 sites = 224 seconds or 3.7 minutes to refresh all data

SCADA

Host

1

Protocol X

2

3

“Operations (OT)” “Enterprise (IT)”

Electronic Flow

Measurement

ERP

Asset Management

& Optimization

Analytics &

BIG DATA

Mobile Apps

Future Apps &

Integration

SCADA Host

SCADA Host

SCADA Host

SCADA Host

SCADA Host

SCADA Host

Electronic Flow

Measurement

ERP

Asset

Management &

Optimization

Analytics &

BIG DATA

Mobile Apps

Future Apps &

Integration

“Operations (OT)” “Enterprise (IT)”

SCADA Host

SCADA Host

SCADA Host

SCADA Host

SCADA Host

SCADA Host

Electronic Flow

Measurement

ERP

Asset

Management &

Optimization

Analytics &

BIG DATA

Mobile Apps

Future Apps &

Integration

“Operations (OT)” “Enterprise (IT)”

SCADA Host

SCADA Host

SCADA Host

SCADA Host

SCADA Host

Electronic Flow

Measurement

ERP

Asset

Management &

Optimization

Analytics &

BIG DATA

Mobile Apps

Future Apps &

Integration SCADA

Host

“Operations (OT)” “Enterprise (IT)”

Operations Managers’ Comments

• “Our poll response cycle time is 12 minutes.”

• “If a leak occurs, time is everything!”

• “We had two major spills in the last two years. Clean-up of our last spill cost $6,000,000”

• “We are taxed on the greenhouse gases we emit so need to calculate and optimize but do not have the capability to effectively do so today”

• “SCADA host companies charge for each protocol they attach to the host. The cost is approx $10K/protocol plus 25% maintenance per year. We have 32 different protocols ($320,000 upfront and $80,000 per year)”

• “We need better access to our other field devices beyond just the PLC’s”

• “How can we provide other lines of business applications with our operational data without compromising the SCADA host application?”

SCADA

Host

#2

1 2

3

“Operations (OT)” “Enterprise (IT)”

Electronic Flow

Measurement

ERP

Asset Management

& Optimization

Analytics &

BIG DATA

Mobile Apps

Future Apps &

Integration

?

IT || OT

4

5

n

SCADA

Host

#1

*YDKWYDK

Summary

• Device protocols tied intimately to applications.

• A need to significantly reduce critical data update times.

• Current network bandwidth consumption limiting additional

information.

• “One to One” information silos.

• “Operational Intelligence” stranded in field devices!

Poll-Response SCADA systems were perfectly viable solutions when first

developed 35 years ago. They have served the industry well, and continue to

do so. But we are entering 2014 and are now challenged with: