Advantages of Re-Usable Code

Recently I’ve seen some good discussions on PLCs (Programmable Logic Controllers) vs. PACs (Programmable Automation Controllers), and it got me thinking about what really differentiates the two. Some have said that it is having a more powerful processor, or more

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Allen-Bradley PLCs

Most readers of this blog know that I go out of my way to be non-brand-specific and unbiased in my presentation of automation topics. So far I have refused to place advertisements for any manufacturer’s on this site, though I

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Ladder Logic 302: Data Tracking and Structure Data Type

Today’s post is the second “advanced” topic I have covered on PLC ladder logic, The first being toggle circuits. It is often necessary to track data on individual parts through a machine or production line. If using devices like barcode/datamatrix

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