2. Automation Engineer (PLC & SCADA).
Embedded System
VLSI.
PCB Designer.
Hardware Testing.
Digital Signal Processing .
Image Processing.
Internet of Things(IOT).
Artificial Intelligence(AI).
3. OBJECTIVES
Industry overview
PLC uses in industry automation
What is plc?
How plc works?
Types of plc
Applications of plc
4. What is AUTOMATION?
Automation is a term for technology applications
where human input is minimized.
Automation is basically delegation of human
control functions to technical equipment aimed
towards achieving,
1) Higher productivity.
2) Superior quality of end product.
3)Improved safety in working conditions
5. Types of AUTOMATION?
Building automation
Ex.lifts,smoke detectors.
Light automation
Ex.street solar lights.
Industrials automation
Ex.paper industry,automated bottle filling
stations.
6. HISTORY OF PLC
The first PLC was introduced in the late
1960’s or before that,relay were used.
Relays were earlier used for automating
machines and processes.
8. What is PLC?
Programmable logic controller (PLC) is an industrial grade
computer used for automation of machinery and processes in
an industrial by controlling inputs and outputs through the
programmed logic. It takes signals from sensor (inputs) and
energizes actuators (outputs) based on the logic programmed
while Working in real time.
Follow standard IEC 61131-2 for PLC.
9. BENEFITS OF PLC
Higher realiability
More flexability as changes can be made within
program
Cost effective for controlling complex system
Easier programming and troubleshooting
Faster response time
12. To reduce human efforts.
To get maximum efficiency from machine and
control them with human logic.
To reduce complex circuitary of entire system.
To eliminate the high costs associated with
inflexible,relay controllerd system.
Why PLC important in industrial?
16. Depending on the inputs and outputs, a PLC
can monitor and record run-time data such as
machine productivity or operating
temperature, automatically start and stop
processes, generate alarms if a machine
malfunctions, and more.
HOW PLC WORKS?
17. Programming Languages of PLC
Instructions List
Structured Text
Ladder logic Diagram
Functional blocks Diagram
Sequential functional Chart
18. Ladder logic Diagram
Ladder Diagram is a graphical programming
language that you use to develop software for
programmable logic controllers .
Ladder logic diagram of main symbols represent
elements:
19. Instructions List
ILs is a textual programming language.
Instead, they most resemble assembly language
programming. As the name implies, a program is a
series of instructions, listed in much the same way
as an assembly program.
20. Functional blocks Diagram
Function (Instruction) Block is a graphical
representation of a series of executable code that
contains user-defined control algorithms.
Block diagrams derive their name from the
rectangular elements found in this type of
diagram.
21. Structured text
The programming language is text-based,
compared to the graphics-based ladder diagram
or Function Block Diagram.
You can even have function blocks containing
functions written in Structured Text.
22. Sequential functional chart
A Sequential Function Chart (SFC)
is a series of scripts that are
defined in a single location, and
then called in sequential order.
blocks containing functions
written in Structured Text.
