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Supervisory Control and Data Acquisition (Scada) Systems

From £3050 per attendee

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Course Information

Day 1
Introduction to control systems
 Definitions
 Types of SCADA
 Smart instruments
 Distributed Control Systems (DCS)
 Heritage versus hybrid DCS
 Open DCS
 DCS versus SCADA

Instrumentation loops and signals
 4 – 20 mA signals
 Voltage signals
 RTD and thermocouple signals
 I/O card specification
 Accuracy specifications
 Resolution pitfalls

SCADA architecture
 Simplex, half-duplex and full duplex communication
 Balanced and unbalanced interfaces
 Bus, star and ring topologies
 Point-to-point and multipoint communication
 IEC 60870 (IEC 104)
 IEC 61850

Day 2
SCADA components
 Master station
 Sub master station/s
 Slave stations
 RAM, ROM and memory allocation
 Input and output tables

SCADA Software
 Database management
 Flat versus relational databases

SCADA redundancy
 Cold Standby systems
 Hot Standby systems

Day 3
Alarm management systems
 ISA 18.2
 Alarm philosophies
 Design and implementation
 System operation and maintenance
 Audit and remediation
 Nuisance alarms
 Improving alarm management
 Alarm trending
 Scripting
 Graphic design rules

HMI options
 Computer-based HMIs
 Stand-alone HMIs

Data transmission medium
 Twisted pair cables
 Co-axial cables
 Fibre optic networks
 Basic radio transmission
 Antennas
 Industrial wireless
 Satellites
 Leased telephone lines
 VHF radio
 UHF radio
 Spread spectrum
 Microwave

Day 4
Media access methods
 Token passing

Basic digital communications
RS 232
RS 485
The OSI model
Error detection

Fieldbus systems
 Modbus
 Foundation Fieldbus
 Profibus
 IEC 60870
 DNP-3

 Attacks against SCADA systems
 Developing a SCADA security strategy
 Countermeasures

In its most widely used traditional form (particularly in the oil and gas industries) a Supervisory Control and Data Acquisition (SCADA) system acts as an adjunct to a larger control system – comprising a number of remote terminal units (RTUs) that collect field data and connect back to the system controller via a communication system. In its other form, SCADA is used as a standalone system to monitor and control a plant using PLCs as ‘hardened’ robust front-end devices providing a ‘window’ into the process.

However, SCADA systems are evolving, and the emphasis today is on using Open Standard communication protocols such as IEC 60870, DNP3 and TCP/IP together with ‘off-the- shelf’ hardware and software to provide greater flexibility and connectivity.

This comprehensive workshop, ‘Supervisory Control and Data Acquisition (SCADA) Systems’ covers all the essentials of a SCADA system including: SCADA architecture and topology; system elements; communication and interconnectivity; and cyber security issues.

On successful completion of this workshop delegates will be able to:
 recognize the different components of a SCADA system
 appreciate the basic principles of data communications
 evaluate the requirements for PLC-to-SCADA communications
 understand the basis of cyclic redundancy
 appreciate the use of radio in the industrial environment
 evaluate the problems associated with database management
 recognise the wide range of modulation techniques
 apply Modbus in a practical manner
 evaluate the relative merits of IEC 60870 and DNP3 SCADA protocols
 gain insight into the challenges faced by cyber security

Software simulation:
An HMI simulation program, incorporating all of the major features of a typical SCADA system, will be made available to delegates for the duration of the course in order to experiment with practical SCADA concepts, in a safe and controlled environment.

Delegates are encouraged to bring their own (non-Apple) laptops.

Note. In order for the software to be loaded onto these machines, administrator rights may need to be obtained.

Other practical sessions include: exercise on radio telemetry path-loss design and performing an intermodulation products calculation.

 Instrumentation and Control Engineers
 Instrumentation and Control Technicians
 Process Control Engineers
 Electrical Engineers
 Consulting Engineers
 Design Engineers
 Control Systems Sales Engineers
 Maintenance Supervisors
 Control System Application Engineers
 Project Engineers
 Plant Engineers
 IT Personnel

Continuing Professional Development