RS-232 ProXR Lite Relay with A/D Conversion

The Most Powerful Command Set Available Anywhere
Read Sensors & Contact Closures with Built-In A/D Conversion
ProXR - The Most Powerful Relays Available!

RS-232 ProXR Relay Controller

This ProXR controller is built with the most powerful command set available anywhere. Put simply, ProXR is a standardized set of commands for controlling relays. This controller is also equipped with Analog to Digital conversion which is simply converting a voltage in the range of 0 to 5VDC into a number that can be processed by custom software that you develop. The applications are limitless and the data that you receive such as light levels and temperature levels can easily activate relays when A/D levels are reached. See more on A/D Conversion below.

This ProXR Lite series controller connects to the RS-232 port of your computer and requires a 12VDC Power Supply.  Once powered up, the relay controller waits for a command.  A command consists of a few bytes of data.  Usually between 2 and 6 bytes.  Once the command has been received, the controller processes the command, and sends you back ASCII character code 85 to signal the completion of your command.

The features list of the ProXR series controllers is extensive. Our ProXR Software helps get you acquainted with the powerful command set. To download, look for the ProXR Software in the Resources section to the right and bottom of this page. The ProXR Manual and the mechanical drawing with dimensions and hole layouts can also be found in the Resources section.

Read More About RS-232 Communications

Three RS-232 Connection Options

There are three RS-232 connection options available for this controller.

ZRS-A Wire It Up	ZRS-B Plug It In	ZRS-AB Both!
Choose the connection that fits your needs. The ZRS-A connection is recommended for applications where hard wiring directly to the board is needed. ZRS-B has the fill 9-Pin RS-232 connector on the board. The ZRS-AB Has the fill 9-Pin connector but is is located off the board for applications where the board may be place inside an enclosure an the RS-232 connector needs to reach to the side of the enclosure.  You can choose one of these connection options at checkout.

ProXR Lite Is Here!

A more streamlined manufacturing process brings a more durable, reliable and better relay board to the market. Here's a list of great features:

User Friendly Board Design

• Surface mount allows for a smaller board
• Break-A-Way Tabs lets you decide the board's size
• Interchangeable interfaces allows you to upgrade or change your interface at any time

ProXR Lite Features

• Works with the full ProXR Command Set
• 8-Channel 8/10-Bit Analog to Digital Converter
• Highly reliable relay with industry leading command set

ProXR Lite Limitations

• This controller cannot be expanded

ProXR Lite Relay Controller

The ProXR Lite Series is a great alternative for those looking for a low cost solution that requires the power and reliability of a ProXR Controller. With a wide selection in Relay type and Communication Interface there is a ProXR Lite board to match your application. Every ProXR Lite Board has Breakaway Tabs that give you the option to make the board smaller or fit it for an enclosure. Interchangeable Interface Modules allow you to switch communication interfaces by simply powering down the device and replacing the module.

The ProXR Lite series are based on the same designs that offer a 5 year warranty. However, in an effort to further save cost, we have limited the warranty of the ProXR Lite series controllers. ProXR Lite series controllers are guaranteed ONLY against manufacturing and functionality defects for a period of 30 days. Controllers that are damaged by our customers will not be warranted under any circumstances. ProXR Lite series controllers are designed for long life; however, should they be damaged, they should be discarded and replaced.

Unlike the ProXR series relay controllers, ProXR Lite series controllers are NOT expandable. The firmware still thinks 256 relays are available, however, the relay portion of the controller only responds to the first 1, 2, 4 or 8 relays in Bank 1. We did NOT skip the Analog Input portion of the ProXR Lite. All ProXR Lite controllers offer a 8-Channel 8/10-Bit Analog to Digital Converter in addition to relay control. The ProXR Lite responds to the same firmware as the ProXR series controllers and is therefore 100% compatible with any applications designed to work with a ProXR series controller (click here to see the ProXR command set).

A/D Conversion

Analog to Digital Conversion allows you to read voltage levels from 0-5 volts using 8-bit or 10-bit resolution.  This is particularly useful for reading temperature sensors (one temperature sensor is built into the board, shared with analog input number 8).  A/D Inputs are also useful for reading light level sensors, thermocouples, switch closures, or just about any other kind of sensor you can think of.  Built-In Pull-Up/Down Resistors keep the inputs quiet.  Eight Different A/D Sample programs are available in the NCD Component Library.  These samples are available as a free download and are compatible with Visual Studio.   We've got sensors!  Visit our Sensor Page for sensors that have been tested and work with all NCD A/D Boards controller.

Read More About Analog to Digital Conversion

N-Button Lite

N-Button Lite creates up to 8 buttons or widgets to control relays without any programming. A new button will be created and placed on the desktop of your computer for each relay that you want to control. N-Button Lite supports Serial Port/ USB and Network connection between PC and relay board. N-Button Lite Manager makes it easy to add any type of button to the desktop and change the properties.

Analog to Digital meters can also be added to your desktop to instantly read the status of any sensor or probe you may have connected to the board. Each meter is customizable and can be changed without any programming knowledge.

Relay Button widgets turn on/off relay directly. It has never been so easy to control relays before.
Relay Status widgets show status of the relay automatically.
A/D Meter widgets display the value of A/D channel automatically.
Customized Button widgets allows you send any of the commuands in the manual to relay board.

N-Button Lite is available as a free download. Look for the Desktop Control section to the right to download.

N-Button Lite version supports up to 8 widgets. If you want to add more than 8 widgets, simply upgrade to the N-Button Standard version.