Hybrid PLC Mechatronics - Chapter 6 Basic Memory Circuits

This chapter is useful in the development of logic using memory circuits. The prior chapter was interested in the development of combinational logic. This chapter began the discussion of sequential logic. More on sequential logic will follow. Writing of Siemens and Allen-Bradley contact and coil instructions is reviewed. A number of instructions were added in the discussion including memory instructions as well as one-shot or edge trigger instructions. Emphasis was placed on converting from one style of memory circuit to another. For Siemens and most European designers, the S-R logic dominates. In the US, seal circuits are dominant. Several example problems were introduced using the memory circuit concept. When more than one state is required, then several memory bits must be used to implement the overall logic. Accompanying Video: PLC Series Chapter 6 - Basic Memory Circuits (1:15:10)
Date:
2022
Primary Material Type:
Online Course Module
Other Material Types:
Open Textbook
Institution:
University of Toledo
Subjects:
Memory Circuits, S/R, Set/Reset, Seal, Latch/Unlatch, One Shot, Edge Trigger

Industry / Occupation

Industry Sector:
Manufacturing -- Miscellaneous Manufacturing -- Robotics, Mechatronics, and other Miscellaneous Manufacturing (3399)
Occupation:
Production Occupations (51-0000)

Education / Instructional Information

Instructional Program:
Engineering Technologies/Technicians (15)
Credit Type:
  • Credit
Credential Type:
  • Certificate
Educational Level of Materials:
  • 2nd Year Community College or equivalent
Time Required:
2 hours
Quality of Online/Hybrid Course Design assured by:
  • None

Copyright / Licensing

Primary License:
Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.