Do you want to understand the foundations of automation? Is it your job to make production more productive, efficient and secure? Are you asking yourself how to open up the potential of Industry 4.0?
With Basics of Automation we will provide you with the answers. Profit from our knowledge and experience – well-founded, practical, and explained fast and simple.
Balluff Basics
4 posts
In the last post about the Basics of Automation, we discussed how humans act as a paradigm for automation. Now, let’s take a closer look at how objects can be detected, collected and positioned with the help of sensors.
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Here’s a simple way remember how to wire up a 3-wire DC PNP or NPN sensor:
PNP = Switched Positive, NPN = Switched Negative. “Switched” refers to which side of the controlled load (relay, small indicator, PLC input) is being switched electrically. Either the load is connected to Negative and the Positive is switched (PNP), or the load is connected to Positive and the Negative is switched (NPN).
A machine’s automation system operates very much like the human body. Just as we humans perceive our surroundings using our sensory organs, a machine registers its surroundings using presence sensors, input devices, and measuring systems.
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