Programmable Logic Controller PLC

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blessing.nwabueze@pbplusoilandgas.com

CONDITIONS FOR PLC OUTPUTS
1. FOR THE RUN LIGHT TO BE ENERGIZED, THE FOLLOWING CONDITION MUST BE MET………
a) stop button must remain closed, and the start button must have been initiated, once the run light is up, it has to stay up lashed.
 
2. FOR THE CONVEYOR MOTOR TO RUN THE FOLLOWING CONDITION MUST BE MET…………
a) the run light has to be energized
b) either the Fill light must be de-energized or the Full light must be energized
 
3. FOR THE FILL LIGHT TO BE ENERGIZED ONLY IF THE FOLLOWING CONDITION IS MET…….
a) the proximity sensor must be closed
 
4. THE FILL VALVE WILL OPEN AND START FILLING THE BOX ONLY IF THE FOLLOWING CONDITIONS ARE MET………
a) the fill light must be energized and the Full light NOT energized
 
5. THE FULL LIGHT CAN ONLY BE ENERGIZED IF THE FOLLOWING CONDITIONS ARE MET………
a) the proximity switch is closed and…….the level switch has been closed ( remember, the latch will keep the light energized till the box leaves the Proximity switch)

This course is design to give delegates the basic knowledge needed to understand the Programmable Logic Controller. Upon completion of this 1 day event, each delegate should be able to:

1. Understand the basic concept and development of PLC, its definition and terminologies
2. Identify the components in a PLC system, including hardware and software
3. Understand the advantages of PLC over relay logic
4. Identify basic PLC input and output systems
5. Identify and list basic PLC programing languages
6. To write simple ladder logic programs using timers, counters, latch output and other functions.
7.  know how to download programs and set the PLC online.
8.  Carry out practical exercise with a simulation software.

Table of Content

1. PLC Definitions and Basic PLC Concepts
2. System Components
3. The Processor
4. The Input System and output systems
5. Types of PLC languages
6. writing and debugging a logic program with Ladder logic
7. Hands on Simulation and Exercises