1 / 11

Introduction to PLCs

Introduction to PLCs. MAIN 222 Industrial Controllers. Introduction. Why Automate? At the end of this lesson you will be able to define PLC definitions and simple operations of a PLC. What is difference between Relay Logic and PLC logic Where is it used. Why Use A PLC.

avram-murphy
Download Presentation

Introduction to PLCs

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Introduction to PLCs MAIN 222 Industrial Controllers

  2. Introduction • Why Automate? • At the end of this lesson you will be able to define PLC definitions and simple operations of a PLC. • What is difference between Relay Logic and PLC logic • Where is it used

  3. Why Use A PLC • Gain Complete Control • Achieve Consistency • Improve Quality and Accuracy • Work in Difficult Environment • Increase Productivity • Lower Cost to make Product • Control Inventory

  4. What Makes A PLC Work

  5. Vocabulary • Memory • Inputs • Outputs • I/O • Address • Status Table • See p1-6 of Series 90 Micro Workshop

  6. Vocabulary • Normally Open Contacts • Normally Closed Contact • PID • Scan Time • Register • Flash Memory • See p 1-7 Series 90 Workshop

  7. GE Specific / Digital Terms • Super Cap • PWM • SNP • P/S • Byte • Word • And • Or

  8. PLC Configurations • Integral or a shoebox or small brick sized device • Series 90 Micro GE Fanuc PLc • Advantages less expensive small • Disadvantages not repairable limited I/O limited I/O types

  9. PLC Configurations • Modular I/O cards fit in a rack • Series 90-30 or Series 90-70GE Fanuc PLC • Advantages repairable , flexible • Disadvantages expensive, larger in size

  10. Summary • There are many different types of PLCs • GE • Allan Bradley • All must use the same common micro controller system of working • All use digital controls bits to address and register information

  11. Where to Get More Information • www.plcs.net • Series 90-30 X Student Guide

More Related