After spending the last couple of weeks teaching PLC programming, I decided to do a little research on the popularity of the different manufacturer’s platforms worldwide. I have been asked many times in the past who the biggest, most popular, …
Today’s post is the first “advanced” topic I have covered in this blog. By advanced, I mean that rather than covering basic information on Ladder Logic and program structure like I did in my 100 Series, or general programming routines …
As safety systems become more and more complex (primarily because of the influence of European safety standards), the cost-effectiveness of safety PLCs has improved. I first noticed Safety PLCs being used only about five or six years ago, though according …
In last week’s post I mentioned that there was a mistake in the organization chart I have been using in my ladder logic posts. My friend Gordon mentioned it at lunch a couple of weeks ago and when I checked …
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 …
*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 …
Well, I can’t help you with that, but… Believe it or not, until a few days ago, I really had no idea why people came to my website. I wrote a few months ago how I had been able to …
*Note: This post was written in October of 2012. Since that time I have written a number of other posts on ladder logic you may find useful. These are listed below for your convenience: Ladder Logic 201: Inputs (March 2013) …
As I progressed through my automation career I was exposed to many different PLC platforms. My first job out of college was as an applications and sales engineer for a distributor of Eagle-Signal, Omron, Idec and Fuji PLCs. Back then …
When I worked for automation distributors I was required to promote and recommend only the products that the distributor sold. This sometimes caused a conflict of interest: is this the most appropriate solution for this application? The first distributor I …
