Latest HMIs Technical Articles

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PygWalker Data Visualization Library - Part 2, Advanced Charting Display

PygWalker is a useful tool to visualize data, with advanced features to make the data more constructive. This tutorial continues using the milling machine predictive maintenance dataset.

September 12, 2023 by Michael Levanduski

PLC Programming With Function Block Diagrams

Function block diagram (FBD) programming is a common language for PLCs following the IEC 61131 standard. What is FBD, and how does it differ from the familiar ladder logic programs?

August 29, 2023 by Shawn Dietrich

Human Factor Engineering: Designing an Intuitive HMI

Designing a control system is a difficult task in itself, but designing the graphical interface for an everyday user can be a very different kind of challenge that involves mental and physical considerations.

August 22, 2023 by Seth Price

How to Design and Deploy a Web-Based HMI Project - Part 1

A walkthrough and discussion of a simple web-based HMI solution that could modernize your current HMI technology stack. The first step in the process involves sending data from a device to a server.

August 16, 2023 by Michael Levanduski

How to Design and Deploy a Web-Based HMI Project - Part 4

Refining and integrating a front-end HMI application to an API middle layer with real-time data display and historian capabilities for short-term data visualization.

August 09, 2023 by Michael Levanduski

How to Design and Deploy a Web-Based HMI Project - Part 3

Learn the first steps in focusing on the integration of a front-end HMI application to an API middle layer.

August 09, 2023 by Michael Levanduski

How to Design and Deploy a Web-Based HMI Project - Part 2

The middle layer, or API layer of a custom-built HMI project involves a server that can submit or receive data to and from a device, either to provide the user interface or interact with the machine.

August 09, 2023 by Michael Levanduski

What Does ‘Explosion Proof’ Mean, and Who Should Care?

Some workplaces are more dangerous than others, not because of the practices, but rather the products. Where do explosions occur, and what practices exist to reduce such risk for equipment and workforce?

August 09, 2023 by David Peterson

Creating a Low-Cost OpenPLC Pulse Timer Function Block HMI with an M5Stack Core

Triggering a machine by an external event often requires a pulse timer for OpenPLC Pulse Timer control. Here’s a brief tutorial on how an M5Stack Core can offer a simple, effective low-cost Arduino OpenPLC HMI solution.

August 07, 2023 by Dr. Don Wilcher

Understanding the Automation Lingo: PLC, PAC, RTU, DCS, and SCADA

What are these terms, PLC, PAC, RTU, DCS, SCADA? Why are they so important to industrial robotics and automation? Explore how each different piece functions to build a comprehensive automated system.

July 31, 2023 by Damond Goodwin

Closing the Loop: Feedback, Feedforward, and Adaptive Control

Process automation relies on precise control systems to operate production equipment for everything from lumber to pastries. Using control algorithms produces stable, accurate, and often delicious results.

June 05, 2023 by Shawn Dietrich

Connectors Used in Industrial and Robotic Cable Termination

Industrial and robotics cabling requires specialized termination strategies. This article introduces connectors involved in automation applications for cable-to-cable or cable-to-device termination.

May 30, 2023 by Simon Mugo

Developing Standardized Practices for PLC Programming

Any kind of computer programming can be challenging to determine what aspects are truly unique versus what aspects should be standardized across projects and platforms to streamline future development.

May 25, 2023 by Shawn Dietrich

Back to the Basics: Understanding Industrial Buttons and Switches

This article features an in-depth discussion of the various options for buttons and switches, including function, styles, shapes, and illumination options for all kinds of control panel inputs.

May 18, 2023 by Shawn Dietrich

Fundamentals of Grounding in Industrial Automation and Control Systems

The subject of grounding in electronics is broad and complex, spanning across a variety of functions and objectives. In this article, we will investigate the applications and regulation of grounding in control systems on a fundamental level.

March 26, 2023 by David Peterson

Understanding Controller Memory Types and Conservation

Insufficient controller memory can result in reduced HMI and SCADA response speed and longer scan times. Know the differences between RAM, ROM, and removable memory, and how to keep program sizes in check.

March 06, 2023 by Shawn Dietrich

What is Proportional Gain?

This article discusses the meaning and effects of proportional gain in a controlled system such as motion, temperature, and fluid flow.

February 13, 2023 by David Peterson

Control System Process Data Archiving: Strategy and Methodology

Data stored in a historian server is useful for analysis and troubleshooting. Learn about data archiving techniques for control systems, as well as what type of data is stored and the tools to make it happen.

January 05, 2023 by Munir Ahmad

Teardown: What’s Inside a Human-machine Interface (HMI)?

Human-machine interfaces, or HMIs, provide visual process data and allow access to process parameters and diagnostics information. What’s inside these touchscreen displays, and how do they actually work?

December 11, 2022 by David Peterson

Network Manager SCADA System in Hydroelectric Power Plants

Network Manager SCADA is a real-time, modular system that is highly scalable and easy to deploy and maintain. The system can grow with future needs and support a virtualized environment to decrease hardware cost.

November 29, 2022 by Munir Ahmad