This is a continuation of the series on PLC ladder logic. It is meant to be a mid-level tutorial for people who have some familiarity with programming in ladder logic, but want to start the next phase of writing their …
There has never been a better time to be an engineer when it comes to the tools available to help us in our jobs. Computers operate at amazing speeds, new software comes out every year with more and more capability …
Today’s post is a continuation of the series I started a few weeks ago on PLC programming in ladder logic. So far I have covered the topics of Inputs, Outputs and Faults; this topic does a lot to tie the …
Well, I guess its official… this is the cover of my new book. Several weeks ago I asked if anybody had any preferences for the cover; there weren’t any responses to that particular post, so McGraw-Hill ended up just picking …
This is the third in a series of posts on Ladder Logic. So far I have discussed input and output routines and a bit on program organization. This week I am going to cover faults. As shown in the organization …
The pictures above are two new cover ideas for my new book “Industrial Automation: Hands On”. I mentioned to the editor that I thought the cover they had proposed looked more process-oriented, while the book concentrated more on machinery. They …
This is a continuation of a series on programming techniques that I started last week. In the Ladder Logic 201 post I discussed conditioning, backchecking and debouncing of inputs. This weeks topic covers how outputs are actuated including permissives, Auto, Manual …
*Note: Since the time of this post I have written a number of other posts on ladder logic you may find useful. These are listed below for your convenience: Ladder Logic 101: Where do I Start? (February 2011) Ladder Logic …
Last week I discussed a little bit about a project I was working on. It involved evaluating a system that had a lot of problems, mostly due to human error and lack of attention to detail. The follow-up involved having …
Not long after starting the original Automation Consulting in 1996 I met a machine builder in Knoxville who taught me a great deal about machine building. When we started working together there were only a few of us and sometimes …
