PLC Essentials

Explore the basics of PLCs and define what policy is, then describe where policies are used and how policy application works in factory automation.

Discover how a programmable logic controller enables industrial automation by processing inputs and outputs with a lean operating system in rugged environments, using pulses to control motors, relays, and equipment.

This automation example shows a bottling sequence where a green start button triggers cycle, guiding bottles to filling station, and photo sensor triggers 2-second fill via PRC and stepper motor.

The CPU is the key part of a PLC system, processing inputs from input modules, executing the program stored on memory cards, and generating outputs via output modules.

Compile PLC code, fix errors, and transfer the program to the CPU via ethernet using the pulse reprogramming tool, or ship a memory card with the program.

Understand how PLC I/O modules connect equipment to systems, handling digital input and output alongside analog input and output signals, with 24-volt dc standards and simple scaling.

Learn how the CPU operation modes and the different types of IO modules drive PLC control, and understand compile and download workflows as you finish lesson two.

Learn how a stepper motor, valued for its simple mechanism and low cost, is driven by a two-signal driver—pulse and direction—under the Palsson direction standard for precise rotation.

Explore encoder types connected to a microcontroller, how pulse modulation works in passive applications, control of stepper motors by pulses, and supported serial communication protocols.

Explore expanding PLC capacity by managing input and output signals, define CPU handling, and choose extension racks or remote IO to overcome main rack limits.

Distribute signals to local stations and connect them to the main cpu via an internet based network, enabling remote io with fibre optic cables and mixed io card series.

Explore how policy executes programs in a PSC application, distinguishing CPU cycle types and scan time, and learn to design programs to fit the policy-driven framework.

Explore how policy runs the code. Define the CPU cycle and cyclic program, review various types of policy cycles, and explain CPU scan time.

Review standard programming languages used to create policy applications, describe logic and a ladder diagram, and overview the IEC seeks 1131 RASHTRIYA Standard.

Learn how ladder logic models relay circuits with start and stop controls, self-latching contacts, and ladder diagrams that map to electrical circuits.

Explore instruction categories in plc programming, including normally open/closed contacts, relay coil, edge detection, move instructions, maths functions, and program control commands like conditional jumps.

Explore how timers create delays and pulses with configurable time bases and how counters handle up, down, and mixed counts for interlocking and production control.

Explore standard data types and places, create utility or user defined types, and provide an overview of PSC program elements, control functions, and timers and counters in PFC.

Learn to develop a PLC program by following a process: define variables, identify tasks and functions, design a program structure, and implement code using modular programming with function blocks.

Explore function blocks to encapsulate control logic, reuse a single block for multiple motors with instances managing inputs, outputs, and internal variables, updated once via a block library.

Explore how software tools configure hardware and the programming environment for PLC code. Understand licensing, brand restrictions, diagnostics, testing, simulation, backup, and online remote monitoring.

Learn to configure PLC hardware quickly by dragging and dropping modules, setting CPU IP and clock, IO parameters, network addresses, and using auto-detect to prevent misplacements, saving engineering time.

Explore the program editor to create, edit, and compile ladder and structured text code with drag-and-drop tools, modular design, and separate drawings for each output signal.