Electric Facilities Automation

Course Description

Electric facilities automation system architecture. Process interfaces - binary, impulse, analog signals and commands. Transmitters and actuators. Measuring transducers. Local automation devices - fixed wire and programmable. Signal relay techniques. Electronic logic circuits. Programmable logic controllers - PLC. PLC programming. IEC 1131 standard. Soft-PLC. Local automation distributed systems in electric facilities. Standard field bus communication (PROFI-, BIT-, CAN-, LON-, MOD-, EI-, M- Bus). Human ? machine interfaces. Process visualization.

General Competencies

Understanding signal aquiring metods and its logical processing. Creating control algorithms. Knowledge of the programmable controllers structure. Using the software tool for programmable controllers.

Learning Outcomes

  1. distinguish types of signals in power plants
  2. define process interfaces for local automation
  3. distinguish fixed-wired and programmable technology
  4. explain signal diagrams in relay technique
  5. prepare flow charts for programming of control algorithms
  6. use software tool for programming of PLC / PAC device
  7. recognize distributed control system and process communication bus
  8. explain human-machine interface and process visualization

Forms of Teaching


Lectures supported by Power Point presentations.


Programming PLC devices using PCs and demo-panels during the lectures.

Grading Method

Continuous Assessment Exam
Type Threshold Percent of Grade Threshold Percent of Grade
Homeworks 50 % 20 % 50 % 20 %
Class participation 50 % 10 % 50 % 10 %
Attendance 50 % 10 % 0 % 0 %
Mid Term Exam: Written 50 % 20 % 0 %
Final Exam: Written 50 % 40 %
Exam: Written 50 % 70 %

Week by Week Schedule

  1. Introduction. Definitions and Terminology. Substation integration and automation system architecture. Open systems. Interface between automation and the substation.
  2. Input and output signals. Binary, impulse and analog signals. Signal conditioning equipment. Signal sources. Measuring transducers. Actuators.
  3. Status monitoring. Analog data acquisition. Control function. Equipment for local automation – fix wired and programmable. Relay based automation equipment.
  4. Programmable logic controllers - PLC. Internal architecture. Principles of operation. PLC versus computers. PLC hardware components. Input/Output section. CPU. Memory.
  5. Number system and codes. Binary system. Hexadecimal system. BCD and ASCII code. Encoding and decoding. Fundamentals of logic. Basic logic functions: NOT, AND, OR. Boolean algebra. De Morgan rules.
  6. Basic PLC programming. Ladder diagrams. Instruction set. Function block diagrams. IEC 1131 standard.
  7. Internal relays. Battery-backed relays. One-shot operations. Set and reset functions. Edge detection.
  8. Programming timers. Types of timers: ON-delay, OFF-delay, single-pulse, frequency generator.
  9. Programming counters. Up and down counters. Cascading counters. Sequencer and shift registers.
  10. Data handling. Data types: input, output. memory and communication. Bits, bytes, words and double words. Compare functions. Arithmetic instructions
  11. PLC Expansion. Local and remote expansion. PLC networking. Master and slave communication.
  12. Communication networks inside the substation. Distributed intelligence system. Field busses: PROFI-, BIT-, CAN-, LON-, MOD-,EI-, M-Bus.
  13. Programming tool EasySoft. Project structure. Programming of Easy control relay.
  14. Practical programming of control algorithm using demo panel.
  15. PLC installation, commissioning and testing. Powering and electrical noise. Grounding. Unput/output monitoring. Forcing outputs. Program transfer, program testing. On-line program editing.

Study Programmes

University graduate
Electrical Power Engineering (profile)
Specialization Course (1. semester) (3. semester)


E.A. Parr (2003.), Programmable Controllers, Newnes
John R. Hackworth, Frederick D. Hackworth, Jr. (2004.), Programmable Logic Controllers: Programming Methods and Applications, Pearson/Prentice Hall
W. Bolton (2009.), Programmable Logic Controllers, Newnes
John Webb, Ronald A. Reis (1999.), Programmable Logic Controllers: Principles and Applications, Prentice Hall
Frank D. Petruzella (2004.), Programmable logic controllers, McGraw-Hill Higher Education


ID 35209
  Winter semester
L1 English Level
L1 e-Learning
30 Lectures
0 Exercises
0 Laboratory exercises
0 Project laboratory

Grading System

90 Excellent
80 Very Good
70 Good
60 Acceptable