Course

Objective:

Learning Outcomes:

• list the considerations associated with PLC safety
• explain static electrical discharges
• describe the personal protective equipment (PPE) used by technicians when working on electrical systems
• identify the ratings used for the power supply, input sections, and output sections of PLCs
• explain the use of Ohm's Law in series and parallel circuits and calculate the voltage drops created by loads in series and parallel circuits
• identify the use of symbols in electrical and PLC circuits
• identify the use of symbols in software programming diagrams
• define pictorial drawings, wiring diagrams, ladder diagrams, and programming diagrams
• explain and list the common logic functions
• demonstrate an understanding of the functions and different variations of the five sections of a PLC: input section, output section, power supply, CPU, and programming device
• describe the operating cycle of a PLC and how it relates to a PLC's memory
• demonstrate an understanding of the structure and organization of PLC program files and data table files
• locate the data table file and describe the structure, organization, and addressing for input, output, status, and bit files using the data tables
• describe how bit instructions (XIC, XIO, OTE, OTL, and OUT) relate to real-world devices and to their respective data table addresses
• illustrate how to use TON, TOF, and RTO timer instructions
• illustrate how to use CTU and CTD counter instructions
• create a PLC-wired electrical circuit from a hardwired electrical circuit that includes a contactor or motor starter
• identify the differences between electromechanical relays and solid-state relays and why they are used with input and output devices
• describe how contactors and motor starters are used as interface devices and how they are properly connected to the output sections of PLCs
• identify the installation considerations for PLC enclosures and power supplies
• identify the installation considerations regarding electrical noise and PLCs
• demonstrate an understanding of PLC wiring methods, wiring termination methods, and I/O wiring related to PLC installations
• explain how a PLC and PLC system is maintained
• list the steps involved in safely performing a visual inspection of a PLC as part of hardware maintenance
• list the steps involved in safely performing energized maintenance of a PLC as part of hardware maintenance
• list the steps involved in safely performing battery maintenance of a PLC as part of hardware maintenance
• discuss the advantages of using PLC error codes and how they are displayed on a PLC
• identify the use of symbols and abbreviations on test instruments and their meanings
• demonstrate how to set a test instrument to measure voltage and properly connect the test instrument to take voltage measurements on a PLC system
• demonstrate how to set a test instrument to measure resistance and properly connect the test instrument to take resistance measurements on a PLC system
• demonstrate how to set a test instrument to measure current and properly connect the test instrument to take current measurements on a PLC system
• identify the differences between sag, swell, under voltages, overvoltage’s, and transients
• demonstrate how to safely and systematically debug a PLC program using the TND instruction, the Cross Reference function, the Find All function, and the Goto Data Table function
• identify the types of signals used by analog input devices
• identify the types of signals used by analog output components.

General Topics: