Pepperl+Fuchs Blog

How to Wire a Proximity Sensor to a PLC

Posted by Sam Horn on Tue, Sep 18, 2018

Power supply
  • The power supply provides power to the CPU, I/O modules, and signal devices.
  • CPU (sometimes called a processor or controller)
    • A CPU (central processing unit) is essentially the brains of the operation.
    • The CPU takes data from the I/O system and processes it according to what the programmer specifies.
  • I/O system
    • I/O modules (sometimes referred to as I/O cards) can accept input signals, deliver output signals, or both
    • Input modules can accept digital or analog signals
  • Signal devices
    • Signal devices can be push buttons, sensors, or switches. In this case, we will talk about sensors">

      Connecting a proximity sensor to a PLC can be a daunting task at first glance. For one thing, there is no universal way to connect proximity sensors. The process varies depending on the sensor and input module used in the configuration.

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Topics: PLC, proximity sensors

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