Blog Archives

Ladder Logic 303: PLC Forensics

Today’s topic involves a project I have been working on over the last few months. The project consists of adding process equipment including tanks, pumps, valves and instrumentation to an existing system… while it is running. Because production runs 24

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Posted in Integration, PLCs, Software & Programming

Jargon, Buzzwords and Acronyms: Understanding the Process

One of the best things about teaching technical classes around the country is getting to meet people from all kinds of different industries. Sometimes, like a couple of weeks ago in Raleigh, NC a class will have people from several

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Posted in Automation Concepts, Documentation, Software & Programming

Miami Adventures

Last March I wrote a post on working in New England on a consulting project. Much of the post was about the travels during my days off from the project, describing what the area was like in the Winter. I

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Posted in Applications, Material Handling, Process, Travel, troubleshooting

Device Labeling Poll Results

A couple of weeks ago I started a poll on device numbering methods, here are the results. Responses came from comments on this site and five different Linked In forums. Method 1: Labeling the device based on the I/O point

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Posted in Automation Concepts, Controls Design, Machine Design, Process, Techniques

Device Numbering Methods: A Poll

Recently I was involved in a discussion on the best method of numbering and labeling devices for systems and machinery. I have used several different methods in the past, depending on customer preference and the type of application; these methods

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Posted in Automation Concepts, Controls Design, Machine Design, Process, Techniques

PID Control

Well, I’m back from another automation training adventure, this time just outside of St. Louis, Missouri. After my previous trip to Denver, I thought it might be a good idea to discuss PID control, since that is what I spent

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Posted in Automation Concepts, Process

Denver and the World of Water Treatment

Last week I mentioned that I would be traveling to Denver to do some work in a field I am not so familiar with. Well, I returned yesterday after what I would consider a very successful and interesting trip. The

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Posted in Consulting, Process, Software & Programming, Travel

Things vs. Stuff: The World of Process Control

Next weekend I am flying out to Denver for another adventure in the automation world. This time I will be a little out of my element as I will be at a water plant, which brings up the topic of

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Posted in Process

Operator Assisted Automation

Automated production lines and cells often have stations that require operator interfacing with the equipment. Typically this is due to the extreme costs that are associated with manual loading of parts into a machine. Parts may be too large or

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Posted in Assembly, Automation Concepts, Machine Design, Poka-Yoke, Safety

Process Types

Processes may take various forms in automated production. They may be continuous as with the mixing of chemicals, synchronous where operations are performed in unison or asynchronous where operations are performed independently. Manual and automated tasks may be mixed to

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Posted in Automation Concepts, Indexers, Process, Techniques, Vendors and Manufacturers
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