Category: UXP Expansion Port

UXP Expansion Port

Select ProXR series controllers that contain UXP in the part number include a UXP expansion port.  These controllers have different firmware that support compatible UXP expansion boards, allowing you to add Contact Closure Inputs, Potentiometer Outputs, and High-Resolution Analog to Digital Converters.  This section of our tutorial will demonstrate each of the expansion boards, and the commands associated with these expansions.  Please note that only one type of expansion is permitted on the UXP port.  For instance, if you choose Contact Closure inputs, then all expansions most be a contact closure input.  It is not possible to mix expansion types on the

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UXP Contact Closure Input Expansion

The UXP expansion port found on ProXR series controllers (equipped with a UXP port) support contact closure inputs.  These controllers allow you to connect buttons, switches, motion detectors, or any other type of contact closure input to your relay controller.  UXP series controllers are able to be read the contact closure inputs based on a polled protocol.  Polling is the process of asking the controller the current state of the contact closure inputs and receiving a reply.  Push notification is not supported for any UXP expansions.  Since inputs on this expansion will not accept voltages on the inputs, users should exercise

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UXP Analog to Digital Conversion (8/12-Bit)

The UXP expansion port found on ProXR series controllers (equipped with a UXP port) support up to 48 Channels of Analog to Digital Conversion with 12-Bit resolution.  These controllers allow you to read analog voltages from 0 to 5VDC, ideal for sensor monitoring applications.  UXP series controllers are able to be read ADC inputs based on a polled protocol.  Polling is the process of asking the controller the current voltage on any of the inputs and receiving a reply.  Push notification is not supported for any UXP expansions.  Users should exercise caution not to exceed 5VDC on any of the analog inputs

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UXP Digital Potentiometers (8-Bit)

The UXP expansion port found on ProXR series controllers (equipped with a UXP port) support the ability to control digital potentiometers.  Use the digital pot expansion boards for tuning of external analog circuits, audio control applications, or scientific control and simulation applications.  Digital potentiometers offer 8-bit resolution with the ability to control many channels individually or simultaneously.  Digital potentiometer outputs are available in 10K, 50K, and 100K ohm resistance.  Digital potentiometers are limited to working with analog circuits in the 0 to 5V range, and are current limited to 1ma per channel.  Exceeding the voltage or current on any of the potentiometers

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