Industrial Controls

EMR Contacts in Applications

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electro-mechanical contacts (EMC) in applications

This EMR Applications article was written by Chris Urban, an automation educator and PLC trainer with over 40 years of hands-on experience. Find Chris on YouTube and LinkedIn. — CU In the complex world of automation, reliability often boils down to a single, fundamental component: the electromechanical relay (EMR) contact. Whether you are troubleshooting a legacy system or … Read more

PLC Programming Tutorial: Build a Conveyor System (ACC Simulator)

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In this tutorial, I am going to walk you through the Conveyor Scene in the ACC PLC Simulator. This is a single-axis belt conveyor with proximity sensors at each end and a box that travels back and forth along the belt. You will write a ladder logic program that starts the conveyor, detects the box … Read more

Relay Symbols and Abbreviations Glossary

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Do you really understand relays?

This article was written by Chris Urban, an automation educator and PLC trainer with over 40 years of hands-on experience. Find Chris on YouTube and LinkedIn. — CU This is the fourth article in the relay series. If you missed the previous one, start here:The Relay Obituary? Not So Fast! Before diving into how relay contacts are used in … Read more