tailieunhanh - Basic of PLCs

Programmable Logic Controllers (PLCs), also referred to as programmable controllers, are in the computer family. They are used in commercial and industrial applications. A PLC monitors inputs, makes decisions based on its program, and controls outputs to automate a process or machine. | Table of Contents Introduction .2 Number Basic S7-200 Micro Connecting External Programming A Discrete Inputs Analog Inputs and High-Speed Review Final 1 Introduction Welcome to another course in the STEP 2000 series Siemens Technical Education Program designed to prepare our distributors to sell Siemens Energy Automation products more effectively. This course covers Basics of PLCs and related products. Upon completion of Basics of PLCs you should be able to Identify the major components of a PLC and describe their functions Convert numbers from decimal to binary BCD and hexadecimal Identify typical discrete and analog inputs and outputs Read a basic ladder logic diagram and statement list Identify operational differences between different S7-200 models Identify the proper manual to refer to for programming or installation of an S7-200 PLC Connect a simple discrete input and output to an S7-200 Select the proper expansion module for analog inputs and outputs Describe the operation of timers and counters 2 This knowledge will help you better understand customer applications. In addition you will be better able to describe products to customers and determine important differences between products. You should complete Basics of Electricity before attempting Basics of PLCs. An understanding of many of the concepts covered in Basics of Electricity is required for Basics of PLCs. In addition you may wish to complete Basics of Control Components. Devices covered in Basics of Control Components are used with programmable logic controllers. If you are an employee of a Siemens Energy Automation authorized distributor fill out the final exam tear-out card and mail in the card. We will mail you a certificate of completion if you score a passing grade. Good luck with your efforts. SIMATIC STEP 7 STEP 7-Micro STEP 7-Micro WIN PG