As part of an effort to bring more students to my training facility in Lebanon, Tennessee (near Nashville), I have started a new training course that I believe is one of a kind. I have been teaching PLC and HMI/SCADA …

The Automation Academy Read more »

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Today’s post covers ASCII, string manipulation and how to deal with readable text in a PLC. The picture above is from a ControlLogix program (Allen-Bradley, RSLogix5000 v.16) I wrote back in 2006. The program communicated with a PC-based Cognex machine …

Ladder Logic 305: ASCII and Strings Read more »

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I have been asked by a lot of readers, friends and associates lately about where I’m at on the various projects I’m involved in. There has also been an undercurrent of “why haven’t you posted lately?”, so I figured I’d …

Update on Projects – “Why haven’t you written more posts?” Read more »

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I mentioned last week that I am working on what I believe is the first truly advanced non-platform-specific book on PLC Programming. My friend Tony over on Factory Automation Software Blog has reviewed some books that come the closest, but …

Request for PLC Information and Samples Read more »

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The following story is from my book Industrial Automation: Hands On (McGraw-Hill, 2013). I wrote it to illustrate how a machine or production line is concepted, purchased, designed, built and delivered. This is a pretty typical description of the procedures …

Building The Machine: A Bedtime Story Read more »

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Last week I received an e-mail from a guy at a company called Udemy. He had stumbled across a post about Automation Direct from about a year ago and thought I might be interested in the infographic above. Sometimes when …

PLC Infographic / Udemy Read more »

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Is automation “good” or “bad”? There are arguments on both sides of this issue. On one hand the cost of production on a per item basis is generally lower, on the other hand it is often said that automation takes …

Advantages and Disadvantages of Automation Read more »

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