MAIN 222 Industrial Controllers Introduction to PLCs MAIN 222 Industrial Controllers 11/17/2018

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 11/17/2018

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 11/17/2018

What Makes A PLC Work 11/17/2018

Vocabulary Memory Inputs Outputs I/O Address Status Table See p1-6 of Series 90 Micro Workshop 11/17/2018

Vocabulary Normally Open Contacts Normally Closed Contact PID Scan Time Register Flash Memory See p 1-7 Series 90 Workshop 11/17/2018

GE Specific / Digital Terms Super Cap PWM SNP P/S Byte Word And Or 11/17/2018

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 11/17/2018

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 11/17/2018

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 11/17/2018

Where to Get More Information www.plcs.net Series 90-30 X Student Guide 11/17/2018