Today’s post is another guest article, this one written by Steve Myres. Steve owns Automation Solutions, a controls integration company that also provides machine mechanical, electrical, and fluid power troubleshooting and design. ************************************************************ Dynamic addressing In this article, I’ll describe …

Dynamic (Indirect) Addressing 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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In last weeks’ post, I discussed acquiring data using a PLC to capture values from an analog card. I showed some fairly straightforward methods of capturing data using FIFO methods, averaging data values, and how some of the ladder logic …

Ladder Logic 402: Data Manipulation and Filtering Read more »

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Todays post is in response to a request by Quy Phan, who I met a couple of weeks ago while teaching for Automation Training in San Diego. He is having some problems with some existing equipment concerning noise on his …

Ladder Logic 401: Data Acquisition and Analysis Read more »

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In my last post on PLC Memory Organization, I mentioned that I had not really covered how scanning actually works in a programmable controller. This is certainly a topic that needs to be discussed for an understanding of PLC programming, …

Ladder Logic 105: PLC Scanning Read more »

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