Tag: Siemens

My Little Factory – April 2017

This post is the first in a series I am writing about a project I am working on, hence the “April 2017” designation. As most of my regular readers know, I have spent much of the past several years teaching

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Posted in Applications, Conveyors, Load Cells, Material Handling, My Little Factory, PLCs, Pneumatics, Process, Sensors, The Course, Training, vision Tagged with: , , , , , , , , , , , , ,

Automate/Promat 2017

Earlier this week I had the privilege of attending my second Automate and Promat show in Chicago. I wrote an earlier post on the Automate 2015 show, but when I went back and re-read it I realized that I actually

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Posted in Robots, Sales and Marketing, Vendors and Manufacturers Tagged with: , , , , , , , , , , , , , , , , , ,

Birth of the Programmable Controller

Today’s post is extracted from my new “generic” PLC course manual, PLC Hardware and Programming – Multi-Platform. In the manual, I also cover the origins of the computer, beginning with the Babbage Analytical Engine, all the way back in 1823!

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Posted in PLCs Tagged with: , , , , , , , , , , , ,

PLC Memory

As I have mentioned previously, I have been working on a generic PLC course that I hope to release in some kind of online software format soon. I was able to test a prototype a few weeks ago with a

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

Why BCD?

Computers hate decimal. I mean, just because we have ten fingers and ten toes, we think we can dictate what base other computing entities should think in. Well, it’s really quite inefficient when you think about it, its so easy

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

Teaching the Teachers

A few weeks ago I had the privilege of teaching a Siemens S7 advanced class for Automation Training to some of the professors in my old home town of Knoxville. They were from several of the area colleges and vo-tech

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Posted in Training Tagged with: , , , , , , ,

Request for PLC Information and Samples

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

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

Ladder Logic 105: PLC Scanning

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,

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

Ladder Logic 104: Memory Organization

One of the first decisions that needs to be made when designing a PLC system is memory allocation and organization. In the early years of the PLC memory came at a premium… 1K (one kilobyte) of memory for the program

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

Non-Native Devices: .eds and .gsd files

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

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Posted in Integration, PLCs, Software & Programming, Vendors and Manufacturers Tagged with: , , , , , , , ,