Digital Potentiometer

Programmable Potentiometer

Programmable Digital Potentiometer

Digital PotemtiometerOur Digital Potentiometer controllers offer our customers the capability of integrating programmable digital potentiometers into their next computer control application. Potentiometers are available in 10K, 50K, and 100K values. Each potentiometer output can be set to any of 256 possible output values. Each potentiometer may be controlled individually, or you may control all potentiometers simultaneously.


RS232 and USB Interfaces Available

Our entire line of digital potentiometers are expandable to 256 potentiometer output channels using additional UPOT16 expansion modules.  The RS-232 serial interface has a programmable baud rate up to 115.2K and the USB interface mounts as a Virtual COM Port under ANY Operating System, and is again controlled at 115.2K Baud.  The RS232 or USB Potentiometer versions have your choice of 8, 16 or 24 channels of programmable potentiometers with 3 contact points for each programmable resister.

Resistance Output

Please keep in mind; our POT series controllers offer a resistance output, and cannot provide a voltage output of any kind without additional electronics. The potentiometers are limited to applications that operate in the 0 to 5V range. Each potentiometer has a maximum current capacity of 1ma. Exceeding these rating will immediately damage the controller.

Potentiometers have 3 Connections: A, Wiper, and B. When a low value is sent to the controller, the wiper moves closer to A, decreasing the resistance between A and the wiper (increasing the resistance between the wiper and B). When a high value is sent to the controller, the wiper moves closer to B, decreasing the resistance between the wiper and B (increasing the resistance between the wiper and A). The first 48 channels of wiper values can be set to a power-up default state. It is possible to set the wipers on all outputs individually or simultaneously.

You can send commands to program the output resistance of each individual output, or you program all outputs at the same time. Other commands allow you to set the startup resistance of each output. The ProXR command set allows you to send commands to activate relays, deactivate relays, control all the relays at one time, plus you can send commands that tell a relay to turn on for a few seconds, minutes, or hours. You can assign 16 timers to any of the 256 relays, and set the timers to go off after the duration has expired.
 
USB Potentiometer
USB Programmable Potentiometer
RS232 Potentiometer
RS-232 Programmable Potentiometer
Expansion Module
Add POTS to any Board with UXP
USB Potentiometer RS232 Potentiometer Potentiometer Expansion Module
  • USB Interface Mounts as a Virtual COM Port on your PC
  • Plug In, Open the Virtual COM Port and Start Sending Commands
  • Available in 10K, 50K and 100K Resistance Values
  • Expandable to 256 Channels of Potentiometer Outputs
  • Control up to 256 Relays using the XR Expansion Port
  • RS-232 Interface Supports Baud Rates up to 115.2K Baud
  • Plug In, Open the COM Port and Start Sending Commands
  • Available in 10K, 50K and 100K Resistance Values
  • Expandable to 256 Channels of Potentiometer Outputs
  • Expandable to control up to 256 Relays using the XR Expansion Port
  • Compatible with any NCD Potentiometer
  • Compatible with any NCD ProXR model with UXP expansion port
  • 16 programmable potentiometers
  • 10K, 50K, or 100K values
  • Each output has programmable resolution of 256 steps
  • Add Expansion Modules up to 256 output channels

Digital Potentiometers

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Potentiometer Expansion Module

Programmable Digital Potentiometer

Add Potentiometer to any UXP Port

The UPOT16 Expansion Module is compatible with any NCD potentiometer as well as any NCD ProXR controller equipped with a UXP port.  Expand any NCD ProXR board with a UXP port to include a potentiometer using the UPOT16 Potentiometer Expansion Module!  Simply plug the UPOT16 into any NCD Relay board that is equipped with a UXP Port to add potentiometer output to any new or existing system.  Please Note: this configuration still offers a resistance output only, and cannot provide a voltage output of any kind.  The UPOT16 potentiometer is limited to applications that operate in the 0 to 5V range. Each potentiometer has a maximum current capacity of 1ma. Exceeding these rating will immediately damage the controller.

UPOT16 Expansion Module

  • Compatible with any NCD Potentiometer
  • Compatible with any NCD ProXR model with UXP expansion port
  • 16 programmable potentiometers
  • 10K, 50K, or 100K values
  • Each output has programmable resolution of 256 steps
  • Add Expansion Modules up to 256 output channels
UPOT16
 
  • 16 Channel Expansion Module
  • Uses UXP Expansion Port
  • Compatible w/NCD Potentiometer
  • Compatible w/UXP Expansion Port
  • Learn More
UPOT16: 80.00/ea
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