Wiring an Ultrasonic Proximity Sensor to the Click PLC

More information can be obtained on our website. This includes all of the links mentioned in this video.

Unboxing our UK1F Ultrasonic Proximity Sensor - Video


An ultrasonic sensor (switch) is able to detect object presence without physical contact (limit switch). No physical contact means that the switch has no parts that will wear out. The life span of the sensor is increased with less maintenance. An ultrasonic sensor will use sound waves to detect objects. These sound waves are at a level that we cannot hear. Distance is measured by the time it takes to send and receive the ultrasonic wave. Objects can be measured the same no matter what the colour, transparency, shininess, or lighting conditions of the application.
We will be wiring an ultrasonic sensor into the input of our Click PLC. This will include a discrete and analog input signal. The UK1F-E7-0A is an 18mm diameter sensor that has a PNP N.O./N.C. selectable output with analog output of 0 -10 VDC. The sensing distance is 200mm to 2200mm and has a one-hertz switching capacity. A 4-pin M12 quick disconnect is available but we will be wiring in our 2m wired version. Let's get started.

Additional discrete component connections to PLC include the following:
Here’s a Quick Way to Wire NPN and PNP Devices

- Wiring NPN Sensor to PLC Video

- Wiring PNP Sensor to PLC Video

- Wiring Contact Discrete PLC Inputs Video

Wiring Interposing Relays

- Wiring NPN and PNP Sensors into the PLC with an Interposing Relay Video

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Wiring Stack Light to Click PLC


Wiring Push Buttons and Selector Switch to Click PLC

Test and Assembly of Push Buttons and a Selector Switch - Video

Wiring Push Buttons and Selector Switch to Click PLC - Video

Wiring an Inductive Proximity NPN PNP Sensor to the Click PLC


Wiring a Capacitive Proximity NPN PNP Sensor to the Click PLC



UK / SU Series Ultrasonic Proximity Sensors
M18 (18 mm) plastic – DC
• High resolution
• 15 to 30 VDC operating voltage
• Discrete models available with adjustable sensitivity
• Analog output models available (0-10 VDC and 4-20 mA)
• Ten different output types: Single PNP, Single NPN, Dual PNP, Dual NPN, PNP & 4-20mA, NPN & 4-20mA, PNP and 0-10V, NPN and 0-10V, 4-20mA only, 0-10V only
• Sensing distances from 40 to 2200 mm
• Complete overload protection
• Multi-function LED status indicator
• Programmable via teach button or programmable via wire (UK6 Series)
• Mounting hex nuts included
• 2m output cable or M12 (12mm) quick-disconnect connector (purchase cable separately)
• CE, cULus file E187310, IP67 rated
• Lifetime warranty

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