Latest Distributed I/O Technical Articles

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Data Flow Tutorial With Mage.ai | Part 3: Connecting to Google Sheets

In this article, we will explore the inbound integration to the mage.ai pipeline, connecting to the spreadsheet data source using the Google Sheets API through a JSON credentials file.

November 27, 2023 by Michael Levanduski

Troubleshooting PLCs and I/O Modules Using Tools and Instruments

When inputs or outputs stop working, the equipment fails to respond and money starts slipping away. Dive into the concept of troubleshooting I/O without ever opening the PLC software.

November 21, 2023 by Shawn Dietrich

Create Your Own IIoT Tech Stack Project | Part 3: Commissioning MQTT Broker

Learn to develop an actual IoT solution end to end. Create a Mosquitto MQTT broker for the Raspberry Pi client in order to connect and publish Sense HAT sensor data.

October 17, 2023 by Michael Levanduski

Create Your Own IIoT Tech Stack Project | Part 2: Testing The Data Payload

Learn to develop an actual IoT solution end to end. This second article explains configuration files, testing the edge device publisher script, and viewing the payload using a sandbox subscriber script.

October 15, 2023 by Michael Levanduski

Create Your Own IIoT Tech Stack Project | Part 1: MQTT Client Setup

Learn to develop an actual IoT solution end to end, from the initial data collection to web-based visualization and analytics. This first article in the series will explore the setup of the edge device.

October 11, 2023 by Michael Levanduski

Loop Powered Process Displays to Add Easy Measurements

Have you ever needed to know the temperature, pressure, flow, or other measurement on location, but the readout is way off in the control room? Here’s an easy way to add a readout in the field.

October 03, 2023 by Harry Trietley

Advanced Web-Based HMI Project: Part 1

Taking web-based HMI design from a simulated project to the real-world environment. Part 1 introduces tag instances and attributes.

September 27, 2023 by Michael Levanduski

Ethernet Ports on Controllers: How Many, and What do They Do?

Some controllers and network devices have one port, while others have two. Why is there a difference, and what advantages does having two network ports actually provide?

September 04, 2023 by Seth Price

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

A Tale of Two Standards | Comparing Analog Voltage and Current

Analog voltage and current are the dominating standards for industrial technology. Is one format better than the other? And if so, why do both signal types still exist in modern systems?

August 28, 2023 by David Peterson

Optimizing Single-Run PLC Bits and Tasks for Startup Processes

Programmable Logic Controllers (PLCs) are designed as an endlessly-looping program, examining all lines of code as rapidly as possible. Following are a few critical tips for when programmers only need to run a series of single operations at startup.

August 21, 2023 by David Peterson

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

Three Things About IO-Link Sensors That May Shock You

Control.com’s Director of Engineering got to explore IO-Link sensors and what he found might surprise you! Although still considered an “emerging” technology, it’s clear IO-Link technology boasts several bonafide benefits over traditional sensors.

August 15, 2023 by David Peterson

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

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

Examples of Analog Signals in Control Systems

Many articles address the wiring and implementation of analog control signals, but where are they used, and what might make them a better (or perhaps worse) decision than digital input/output devices?

July 25, 2023 by Gunner Scott

Examples of Digital Signals in Control Systems

Digital signals hold a prominent position due to their compatibility with computers. But what are digital signals, and what are some examples of the various devices used with digital inputs and outputs?

July 18, 2023 by Gunner Scott