Industrial Automation, PLC, VFD, and Troubleshooting
In industrial automation, the PLC does not know what is happening in the real world unless field devices send information back to it.
That is the job of sensors.
Sensors detect physical …
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Photoelectric sensors are one of the most common sensors used in industrial automation. They are used to detect objects without physical contact by using light.
In PLC systems, photoelectric sensors are …
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