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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Today’s topic derives from a project I have become involved in in my “spare” time. Lately I have been spending a lot more time teaching classes. My project in Miami is mostly complete, so I have been able to get …

Fieldservers and Protocol Converters 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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When designing a control system, sometimes it becomes necessary or advantageous to communicate with devices that were not made by the PLC manufacturer. If these devices need to be placed on an Ethernet, DeviceNet or Profibus network there are methods …

Non-Native Devices: .eds and .gsd files Read more »

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