Ch. 24 Programmable Logic Controllers, Industrial Electricity, 8th edition, by Michael Brumbach, published by Delmar Cenage Learning

1.

References

PLC - an assembly of solid-state logic elements for control and decision making○

Input module: Digital Inputs, Analog Inputs

CPU

Output module: Digital Outputs, Analog Outputs

Power supply, and a rack

A PLC consists of ○

Introduction to PLC•Topics of Discussion

Lecture 18 - Programmable Logic ControllersTuesday, August 05, 2014 4:00 PM

ECE 211 Lectures Page 1

Function Block Diagram (FBD) - a graphical language that uses library of functions (math, logic, etc) and custom functions (modern control, PID control, etc)

○

Instruction List (IL) - low level program for fast execution○

Ladder Diagram - uses graphics, discrete control, interlocking logic; may incorporate function block instructions

○

Sequential Function Chart (SFC) - graphical language, providing structure and coordination of sequential events and parallel sequences

○

Structure Text - Basic language like, for complex processes and/or calculation○

PLC Programming Languages and Tools•

PLC Logic Operation•

ECE 211 Lectures Page 2

ECE 211 Lectures Page 3

Ladder Diagram Examples•

ECE 211 Lectures Page 4

Omron, Industrial Automation, http://www.omron.com/products/indu.html•PLC Pictures, https://www.google.com.tw/search?q=siemens+plc&tbm=isch&tbo=u&source=univ&sa=X&ei=Gf7eU6GgO82QyASqgoLICA&ved=0CDsQ7Ak&biw=1127&bih=739

•

Basic PLC Programming - Rockwell Automation, https://www.rockwellautomation.com/resources/downloads/rockwellautomation/pdf/ev

•

Web Site References

Automated Sandblaster, student Michael Denney, course instructor Paul I Lin, ECET 491 Senior Design Project, May 3, Spring 2013, http://www.etcs.ipfw.edu/~lin/ECET491/S2013/5-PPTs/8-MikeDenney-Final%20Presentation.pdf

NASCAR driver tours Fort Wayne GM Plant, https://www.youtube.com/watch?v=MIwXsGps36UAutomated Processes at General Motors Plant in Roanoke, IN, https://www.youtube.com/watch?v=AxBt8OzAobc

ECE 211 Lectures Page 5

https://www.rockwellautomation.com/resources/downloads/rockwellautomation/pdf/events/raotm/sessions/L01-basicplcprogamming_ppt.pdf

Large control systems, Small control systems, Micro & Nano Control Systems○

Allen-Bradley/Rockwell Automation, http://ab.rockwellautomation.com/Programmable-Controllers

•

Siemens, http://www.siemens.com/entry/cc/en/#/189260•

ECE 211 Lectures Page 6