RS232 Relay with ProXR Command Set
and 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.

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.  You can 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.  Look at the ProXR Command Set to see the full list of commands available.

Extensive List of Features

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.

Future Expansion

Out of the box, the ProXR series controllers are ready to control 256 relays.  You may not have 256 relays just yet, but if your application grows, then the controller is ready to grow with you.  The ProXR series controllers are built from the ground up to be expanded.  When you need more relays, the XR Expansion port will allow you to add another bank of relays (any kind you need), with programming changes taking minutes instead of hours.  No complicated protocols, just simplicity, built into the controller from the very beginning.

Connect this board to the USB port of your computer using a USB to Serial adapter.  The USB to Serial Adapter is to be used with the Quick Start Kit and is available at checkout.

Three RS-232 Connection Options

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

Wire It Up
Plug It In
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.