The document discusses several basic terms related to industrial automation systems, including defining a technical process as a process that alters material, energy, or information from an initial to final state, and defining an industrial automation system as a technical system that automates a technical process using computer and communication systems along with process operators. It also outlines the main components of an industrial automation system, which include sensors that acquire process variable information and convert it into electrical or optical signals, and actuators that convert control information to influence process variables.

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MSCS-667: Industrial Automation Systems
Dr. Abu Sayed Md. Mostafizur Rahaman
Associate Professor
Department of Computer Science and Engineering
Jahangirnagar University
Lecture Today
• Definition of Several Basic Terms

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Basic Terms
• Technical process:
– a process during which material, energy or information is altered in its state. This
modification of state can imply the transition from an initial state to a final state.
Examples

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Industrial automation
Basic Terms
• Industrial Automation
= the automation of a technical process
• Industrial automation system
= technical system with technical process
+ computer and communication system
+ process operators

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Structure of an industrial automation system(IAS)
Real-time operation
• Definition: Real-time operation is the operation of a computer system, in which
programs required for the handling of incoming data are in constant operation
so that the processing results are available within a given period of time.
• Features of a real-time system
– Hardware/software system
– Data reception, data processing, data delivery to the process within a given
time interval
– External events
– Priority of processing
Real-time system allows real-time operation

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Requirements on real-time systems
• Timeliness reaction right on time
• not too soon, not too late
• Simultaneousness simultaneous reaction to various events
• parallel processes
• Dependability reliable, safe, available
• important reason for purchase
• Predictability all reactions must be predictable and deterministic
• comprehensible in case errors occur
Features of automation computer systems
• Three Features:
– Compliance of real-time operation requirements, that are: recording, processing and
output of process data in a timely manner
– Possibilities for input/output of process signals (directly or via a communication
system) for process connection
– Processing of numbers, characters and bits

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Components of IAS
• Sensors:
– Acquisition of information on the progression of process variables
– Sensors, detection devices, measuring devices
– Conversion into electrical or optical signals
– Example: temperature, pressure, velocity
• Actuators
– Conversion of control information in order to influence process variables
– Examples : relays, magnets, servo motors
Components of IAS (cont…)

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Components of IAS (cont…)
Components of IAS (cont…)

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Components of IAS (cont…)
Lecture Outline
Week Topics
2 Real Time Programming Theory
3 Real Time Programming Exercise
4 Real-time Operating Systems (Part I) Theory
5 Real-time Operating Systems (Part I) Exercise
6 Real-time Operating Systems (Part II) Theory
7 Real-time Operating Systems (Part II) Exercise
8 PLC Programming Theory
9 PLC Programming Exercise
10 CAN bus Theory
11 CAN bus Exercise
12 Profibus Theory
13 Profibus Exercise

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Questions
1. Define Technical Process. Give some example of technical process.
2. Define Industrial Automation and industrial automation system.
3. Give the structure of industrial automation system.
4. Give the definition of real time operation. List the features of real time system.
5. Write the requirements of real-time systems.
6. List the features of automation computer systems
7. Describe in brief the components of Industrial Automation Systems