61. Practical Distributed Control Systems (DCS)


This program will cover the practical applications of the modern distributed control systems (DCS).
Whilst all control systems are distributed to a certain extent today and there is a definite merging of the concepts of DCS, Programmable Logic Controller (PLC) and SCADA and despite the rapid growth in the use of PLCs and SCADA systems, some of the advantages of a DCS can still be said to be: Integrity: The expected process down-time caused by a conventional DCS is significantly less than with using a SCADA/PLC.
Abnormal Situation Management and Intelligent Alarm Management is a very important DCS issue that provides significant advantages over PLC and SCADA systems.
Few DCSs do justice to the process; in terms of controlling for superior performance – most of them merely do the basics and leave the rest to the operators. Operators tend to operate within their comfort zone “. If more than one adverse condition developed at the same time and the system is too basic to act protectively, the operator would probably not be able to react adequately and risk a major deviation. This workshop gives suggestions on dealing with these issues.


Days 5- Total of 40 Hours


• A solid understanding of the architecture and operation of Distributed Control Systems (DCSs)
• Ability to design the overall DCS and process control system
• Better specification of planned DCSs
• Improved process performance for your plant
• Understanding of the key ergonomic issues in design of operator displays
• Apply advanced control strategies to your plant control system
• More effective use of your existing DCS process control capabilities
• Design and create a consistent and effective alarm philosophy for your installation
• Recognise and deal with human problems in interfacing to alarm systems


• Process Control Engineers & Technicians
• Automation Engineers
• Operations Managers
• Operators & Control Room Personnel
• Production Engineers
• Process Engineers
• Plant Engineers
• IT Managers working with Networks
• Electrical Engineers
• Project Engineers
• Electrical & Instrumentation Technicians
• Maintenance Engineers & Supervisors


Module (01)
1.1 Evolution of Process Control/ Automation
1.2 Continuous and Discrete Control
1.3 Basic Concepts – Open /Close loop
1.4 Control Loop Components and SMART Instruments
1.5 Current Scenario – PLC, SCADA and DCS based automation
1.6 Hierarchical Structure of Control Systems
1.7 DCS Block Diagram, Components, Architectures, Redundancy Concepts
1.8 DCS hardware configuration

Module (02)
2.1 DCS programming Languages and IEC 61131
2.2 Discrete Control
2.3 Sequential Control
2.4 Safety Interlocks
2.5 Analog Control
2.6 Continuous Process Control Application
Case Study

Module (03)
3.1 Introduction to HMI and SCADA functionality
3.2 Plant Mimic and Animations
3.3 DCS Operator Stations and Operations
3.4 Errors, Faults and Failures
3.5 Hazards and Risks, HAZOP study

Module (04)
4.1 Alarms Philosophy, Configuration and Management
4.2 DCS Communications
4.3 Design/ Specifications and Selection
4.4 Failure Mode Effect Analysis
4.5 Root Cause Analysis
Case studies

Module (05)
5.1 DCS Diagnostics
5.2 DCS Troubleshooting
5.3 Fault Tree Analysis
Case studies

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