Category: Hardware

Mechanical and electrical hardware

Ladder Logic 306: Simulation

Today’s post relates to a new method I am using to teach some of my advanced classes. In a basic PLC training class, pushbuttons and pilot lights built into a trainer are used to complete exercises, usually in order to

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Posted in PLCs, Software & Programming, Training Tagged with: , , , , ,

PLC Security

This post is another guest post from MRO Electric. I thought it was an interesting topic. ************************************************************************ PLC Security In The Heating Industry: Keep Your Friends Close, and Your Enemies Closer No one understood or more succinctly described strategies and

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Posted in Guest Posts, PLCs Tagged with: ,

MRO – Moving HMI Designs

Today’s post is a guest post on HMI programming from MRO Electric, an automation product supplier. Designing HMIs for Mobile Devices Well-designed human-machine interfaces (HMI) reduce operator error, saving companies millions of dollars by reducing down-time and increasing worker safety.

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Hands On Training Equipment

This post is both an update on the status of “My Little Factory” and an article on some new fun trainers that I am working on. As you can see in the above picture, all of the hardware for the

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Posted in Material Handling, My Little Factory, Process, Software & Programming, Trainers, vision Tagged with: , , , , , ,

Ladder Logic 403: Message Scrolling and Multiple Faults

Today’s post is in answer to a question from Bruno on my last post on Faults and Messages. Bruno asks “If two faults happen at the same time, will this procedure work?” This is a more complex question than it

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Ladder Logic 209: Faults and Messages

This post is another in my series on Ladder Logic. As with the other posts in this series, I am using generic logic and addressing so that it can apply to various PLCs. In previous posts in this series I

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Posted in HMIs, PLCs, Software & Programming Tagged with: , , , , ,

Application: Sensor Choices 103

Today’s post concerns how sensor choices are made in real applications. I have written various posts on sensors in the past, and even participated in a Control Engineering webcast and forum last year on the topic. While I have covered

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Posted in Applications, Machine Assembly and Fabrication, Photoeyes, Sensing, Sensors Tagged with: , , ,

My New Trainers!

Well, its official. I have my first actual PLC trainers, in addition to the ones on the wall in My Little Factory. I think they’re awesome! They did take 8 weeks to build, but as more are made I think

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Posted in My Little Factory, PLCs, Trainers, Training Tagged with: , , , ,

Ladder Logic 208: System Routine 2

Today’s post is a continuation of the series on PLC Ladder Logic I started several years ago; for more of these post click on the PLC tab at the top of the site. In particular this continues my discussion of

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Posted in PLCs, Software & Programming Tagged with: , , , ,

Are Things too Complicated?

Today’s post is inspired by an ongoing adventure I have been having in the design and fabrication of My Little Factory. For those who haven’t been following my post since the beginning of this year, a great deal of my

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Posted in Automation Concepts, Conveyors, My Little Factory, Photoeyes, Sensors Tagged with: , , , ,