|
USB ProXR Enhanced with A/D:
USB Virtual COM Relay Controller with 8-Channels of
Analog to Digital Conversion and
XR Expansion Port
Our New USB ProXR Series Latching Relay Boards make it easier than ever to add computer controlled switching to your most demanding computer control applications. Simply connect to your computer and this controller mounts as a Virtual COM Port on your PC, allowing easy programming from any language that supports serial communications.
With all the control and backward/forward compatibility you have come to expect from the ProXR series command set, this controller allow you to send simple commands to activate relays, read the status of relays, activate up to 16 relay timers, and control up to 256 total relays using the
XR Expansion Port. All relays are electronically latched, simply send a command to turn the relay on, send a different command to turn the relay off.
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.
 |
|
Above: The ProXR Series controllers are capable of controlling up to 256 relays. Weather you need power switching or DPDT signal switching, the ProXR Series are built from the ground up with Expansion in mind. Simply Chain the XR Expansion Modules, one after another, to meet your computer controlled switching requirements.
(click picture to enlarge) |
This ProXR series controller connects to the USB 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.
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.
We have also added a Server Reboot Pulse timing feature that is particularly useful for rebooting up to 16 servers. It works like this. Connect the RESET wires on your motherboard to the Normally Open and Common connections on any of the 256 possible relays.
Next, send a command to the relay controller to activate up to 16 Server Reboot timers. You can specify hours, minutes, and seconds as part of the command. Your program should constantly reset the clock built into the relay controller. If the computer ever crashes, it cannot reset the clock built into the relay controller. When the timer expires on the relay controller, the relay will send a reboot pulse to any of the 256 relays, rebooting your computer.
The features list of the ProXR series controllers is extensive. Our ProXR Software helps get you acquainted with the powerful command set. Should you have any questions, please
contact us.
All Relays are Hermetically Sealed, Relay Controller Requires +12VDC Power Supply, Photos May Show Options or Accessories Not Included with Relay Controller. USB Specification Prohibits Relay Controllers from Being USB Bus Powered due to Surge Currents. NCD will NOT Design/Manufacture a Mechanical Relay Controller that is USB Bus Powered, Please Be Cautious of Any Manufacturer who Offers such a Device. |
