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Allen Bradley Micro850 PLC + IIoT

Program a Micro850 PLC and connect it to the IIoT world.

Learn Ladder, FBD and Structured Text from scratch in Connected Components Workbench, then connect your PLC to Node-RED, SCADA, HMIs and MQTT. CCW is free and includes a PLC simulator, so you can start without hardware.

139lessons
29sections
LAD + FBD + STprogramming
Allen Bradley Micro850 PLC and IIoT course

“Rajvir is a great teacher. He keeps his explanations short and simple.”

Aron F., Student
What you will learn

From your first rung to PLC data in the cloud.

One course that takes you from PLC basics to connecting the Micro850 with modern IIoT tools.

01

Program in three languages

Write Ladder, FBD and Structured Text, from bit logic and timers to loops, arrays and function blocks.

02

Work with analog signals

Add and configure the IF2 analog input and OF2 analog output modules.

03

Control a process with PID

Practise PID control with a process simulator.

04

Communicate over MODBUS TCP

Use the Micro850 as a MODBUS TCP server and as a client reading another PLC.

05

Connect SCADA and HMIs

Interface the PLC with Ignition SCADA, a Weintek HMI and the SIA Connect edge device.

06

Send PLC data to MQTT

Publish data to an MQTT broker through an edge device and through Node-RED.

Is this the right course?

Built for Allen Bradley beginners who want more than ladder logic.

Start here if

  • You work with Allen Bradley PLCs or want to start PLC programming from scratch.
  • You want to learn Ladder, FBD and Structured Text in one course.
  • You want to bring PLC data into tools like Node-RED, SCADA and MQTT.

Choose another path if

Course content

29 sections. 139 lessons. One clear path.

PHASE 1
6 lessons

Getting started

An introduction to the Micro850 PLC, plus downloading and uploading PLC programs.

PHASE 2
57 lessons

Ladder and FBD

Bit level, timer, counter, arithmetic, real-time, LIFO and FIFO, binary, string, data manipulation and process control instructions.

PHASE 3
29 lessons

Functions and Structured Text

Functions and function blocks, then Structured Text with IF-ELSE, CASE, FOR and WHILE loops.

PHASE 4
47 lessons

Analog, PID and IIoT

Analog I/O, PID, MODBUS TCP, Ignition SCADA, SIA Connect, Weintek HMI, MQTT and third-party software, plus the course wrap-up.

Try before you buy

Watch 3 lessons for free.

See how Rajvir teaches, from the PLC itself to Structured Text and MQTT.

Free course resources

Download the files used in the course

Find the course files, exercises and software links on the Code and Compile Wiki.

Open the wiki
Student stories

Don’t take our word for it.

“Rajvir personally helped me connect CODESYS, OPC UA, and Simumatik to an OEE dashboard in Node-RED. His Micro800 course covers analog I/O, ST, and function blocks far beyond typical YouTube tutorials.”

Arvind
Engineering Student, Sheffield Hallam University

“Rajvir is an exceptional teacher who simplifies complex topics effortlessly. He’s always available in comments or even via TeamViewer to help you understand. Truly dedicated and teaches straight from the heart.”

Mohammad Alharbi
Engineering Student

“I’m a software engineer at NASA Ames, and Rajvir’s videos greatly help me interface PLCs for testing heat shield systems on reentry vehicles, truly contributing to space exploration and innovation.”

Brian Droncheff
Software Engineer, NASA Ames
10+ Years of experience

Your Instructor

Rajvir Singh

Founder
Code and Compile

He is a skilled Automation and IIoT Specialist, dedicated to achieving goals with precision. His passion lies in making learning accessible and enjoyable through the use of cutting-edge educational tools.

Education and Experiences
Masters Mechatronics
Siegen, Germany
Online Teaching
10+ years
International Trainer
3 years
Software Developer
5 years
Recognition
ctrlX Automation
Influencer
2022
LearnWorlds
Influencer
2023
Enroll

Choose how you want to learn.

Take this course on its own, or unlock every Code and Compile course with PRO.

This course

Allen Bradley Micro850 PLC and IIoT

One-time purchase
  • 1 year of access
  • 139 lessons
  • Instructor support
  • Completion certificate
Enroll now
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Code and Compile PRO

From €12/month, paid yearly
  • €19 monthly, €12/month paid yearly, or €249 for 3 years
  • Access to all courses
  • Tech support
  • Completion certificate
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Practice flashcards. Test yourself on PLC and HMI concepts at beginner, medium and advanced levels on cards.codeandcompile.com.

You will be redirected to Code and Compile School for payment.

FAQs

Questions before you start?

Do I need a real PLC?

No. Connected Components Workbench is free and includes a PLC simulator, so you can practise without a Micro850. If you have one, you can follow along on real hardware.

Will I get instructor support?

Yes. Every lesson has a comment section for your questions. If a query cannot be resolved there, Rajvir offers free screen-sharing sessions.

Can I learn on my phone?

Yes. Use the Teachable app on Android or iOS, sign in with your account and save videos for offline access.

Do I get a certificate?

Yes. You receive a unique completion certificate when you finish the course.

What is the refund policy?

You can request a refund within 72 hours of purchase by emailing info@codeandcompile.com.

Your first Allen Bradley PLC program starts here.

Learn at your own pace, with an instructor who helps you when you get stuck.

Start the course