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Our Ethernet Relay boards makes it easy for computers of all types to control relays and monitor analog inputs. Ethernet Relays allow you turn relays on or off, flash relays continuously, control relays for a duration of time, and control relays in groups using a cross-platform compatible Ethernet interface. This Ethernet Relay is a ProXR Lite series controller which is a widely adopted standard used by industry for many years. Equipped with your choice of 1, 2, 4, or 8 on-board relays, the ProXR Lite series Ethernet Relays suit the needs of most of our customers. Integrated Analog to Digital Converters may be used to manually control the relays, or they may be used to read external sensors. Equipped with 8 or 10-Bit resolution, the ADC built into each Ethernet Relay board adds tremendous flexibility for various application requirements.
Ethernet relays support DHCP or a Static IP address with a programmable port number, 2101 is used by default. NCD Ethernet communications module will transmit the IP address of the device using periodic UDP broadcasts, which make it easy to locate the device on a network.Start by downloading Base Station at https://ncd.io/start and Run the application. A window will appear which listens for all NCD UDP broadcasts. Plug in your Ethernet Relay Board and wait for the Network window to populate with the IP address of the Ethernet Relay Board. Simply click the IP address of the device and “OK” to establish a connection.
Base Station is a tool designed to teach you all the features built into your controller and provide you with example commands. Base Station was written for Windows using Visual Studio (source code available on the download page linked above). Base Station shows you all the commands you need for controlling relays and monitoring external sensors.Beginning Late 2020, we’ve made some updates to this product to make it better with increased component count while maintaining the same functionality and footprint. The New Rev G2 Series adds a better power supply circuit to improve noise immunity while providing increased power to the communications socket. We also improved the relay drive circuit to better handle inductive loads. We also changed the color of the circuit board to Black and updated the branding to ncd.io with updated logos.
This is the same product you have been buying for years, but now with improved electronics and while maintaining the same footprint as the original design. Most importantly, this is now a Legacy product, which means it will never go obsolete as long as critical parts are still available to us. Built with our new high-speed pick and place assembly line, we can complete the surface mount assembly process at a rate of several thousand units per day with the potential to scale to any volume you could imagine, so you never need to worry about supply quantities or supply chain problems.
Please note that it was necessary for us to remove the integrated temperature sensor in select versions of this product. This sensor was providing incorrect readings if the relays were active for extended periods of time. We can help you with an off-board sensor if needed.
Base Station Software was designed to help you learn the ProXR command set. Explore ProXR features using our Graphical User Interface. Watch data bytes flow to and from the board, so you easily understand the command execution process. There is no faster or easier way to learn how to automate than Base Station, as it was designed to work with our complete array of communication modules, including Wireless, Ethernet, USB, RS-232, and many more. You only need a Windows 8 or 10 Computer to Run Base Station. Base Station was written in Visual Studio, and we even provide the source code to help you on your way! Learn More about Base Station Software Here.
This controller is equipped with 8-Channels of 8/10-Bit Analog to Digital Converters, capable of reading analog voltages from 0 to 5 Volts DC. The ADCs on this controller allow monitoring of external sensors or contact closure input detection. Connect external temperature sensors, light sensors, current sensors, buttons, switches, or anything else that generates a 0-5VDC analog or contact closure output. With 8-bit resolution, analog inputs will convert 0-5 Volt signals into a value from 0 to 255. With 10-bit resolution, values of 0 to 1023 may be measured. Input resolution is software selected. Simply ask the controller for the analog value of each input, and the controller instantly responds.
The Relay Activator control panel allows analog inputs to directly control relays. Simply connect the analog inputs to buttons or switches and trigger basic relay on or off functions to take manual control of the on-board relays. The Relay Activator control panel allows you to define 8 functions for each of the 8 inputs. Functions include turning relays on or off, toggling the state of relays, momentarily flash a relay, momentarily toggle the flashing function of a relay, turn all relays on, turn all relays off, and push notification events. When push notification events are configured, the controller generates a packet of data every time the inputs change state.
Base Station helps you learn how to use ProXR Series relay controllers. In this video, we will cover some of the most commonly used features.
Download the Latest Version of Base Station and Source Code for Visual Studio.
Online Manual for ProXR and ProXR Lite Series Controllers
NCD ProXR Series Controllers have been in production for many years and have amassed a large user base since their initial release in the early 2000s. Due to the large client base, we have no plans to discontinue this line of products. In many cases, we are upgrading these devices to make them compatible with automated assembly processes along with improved driver and power electronics capable of supporting many communication technology changes well into the future. Rest assured, ProXR will continue to be a stable part of our product line for many years to come. ProXR series controllers manufactured with a Black circuit board have been migrated to automated assembly and are considered to be the final iteration of this product. These devices can be manufactured in high volumes in a much shorter period of time.
NCD supports integration of NCD relay controllers using LabVIEW. We have included samples and drivers for basic and advanced operation which cover most functions including Relay Timers. We have posted several tutorials on this topic here.
We take communications seriously, as we believe in modular communications and firmware that properly supports scalability into future interface technologies. ProXR controllers support API communications, which effectively wrap every command with a header, payload, and checksum to ensure reliability. NCD API commands increase processing speed because no serial timeout is required prior to command processing. NCD API commands increase reliability, as only a proper checksum will authenticate a command and allow it to process. When we first implemented API, internet communications via a TCP/IP socket could be realized because the timing problems of internet communications were eliminated. While API is optional, it is strongly advised. Our Base Station software uses API communications, so it’s possible to control a ProXR controller over the internet after configuring port forwarding on your router.
ProXR series controllers are the world’s most adaptable controllers, capable of communicating with a wide variety of communication options. Pick any of your favorite communication technologies: Bluetooth, USB, WiFi, Ethernet, Key Fob, RS-485 or RS-232. ProXR easily adapts to the communication technologies you need most. We are committed to modular communications, so your ProXR series controllers can easily be retrofitted for other applications as your needs change. ProXR controllers are never obsolete, as we are actively releasing new communication technologies that greatly enhance the connectivity of our ProXR series controllers.
Control NCD devices using standard Ethernet TCP/IP communications. Simply open a socket and send and receive TCP/IP data to control our devices. Our Ethernet TCP/IP Communication modules feature our 3rd Generation Ethernet to Serial communications module. Use the integrated web page to configure settings. Upload your own customized web page to add special features to this device. We have included a few sample HTML files to help you get started. Learn more about the NCD5500 Ethernet communications module here.
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Solid state relays are ideal for agricultural switching applications, or remotely located switching. SSRs are frequently chosen to control pumps, valves, solenoids, lights, and other high-reliability applications. NCD solid-state relay controllers do not include solid-state relays, but you will have the option to choose the type of solid state relays you require when customizing your product. This controller is designed specifically to fit select Crydom solid-state relays, but may be compatible other solid-state relays made by other companies. Review Solid-State Relay Options
This video will introduce you to Controlling Relays over your Local Area Network (LAN) using Ethernet Relay Controllers from store.ncd.io. Ethernet can be one of the more complicated communication interfaces due to the network protocol stack. We break it down for you to show you the most important parts for Relay Control. You can find NCD Base Station at ncd.io/start.
Learn how to communicate to your Ethernet Module using a Virtual COM Port. Virtual COM Port communications are ideal for existing applications that make use of our wired and wireless relay control already and want to quickly add support for Ethernet Relay Controllers. Virtual COM Port communication allow you to send commands to an Ethernet Relay Board as if it were directly connected to the controlling PC.
Learn the Basics of Analog to Digital Conversion. Many of our boards have analog to digital inputs directly on the board. These ADC inputs are great for monitoring sensors and controlling relays from software based on these sensor readings. This video will show you how, why, and when to use them.
This video will guide you in determining which relay controller you need for your application as well as a general overview of the differences between Relay Options. If you’re new to our products or just need a refresher for a new application this is a great place to start.
Learn about Induction and how it comes into play with Relay Controllers. Induction suppression can make your Relay Control applications intermittent and unreliable. This video will show you what causes it, how to avoid it, and how to account for it in your application.
Analog Inputs should not have a voltage present when powered down. Use a 220 Ohm current limiting resistor on each input to prevent damage to the controller if voltage will be present on the analog input when this controller is powered down. Do not exceed 0 to 5VDC on any analog input or the on-board CPU will be damaged. Most analog inputs include a 10K Pull Up/Down resistor to help keep the inputs quiet when not in use. This 10K resistor may slightly bias the readings of some sensors.
This device periodically sends UDP Packets on port 13,000, which help identify the IP address of this device on your network.
Please examine the datasheet of each solid state relay carefully, as SSRs do not function exactly like mechanical switches. SSRs frequently have minimum load requirements, and some require external snubber circuitry for certain applications. SSRs do not typically work with volt meters in the same way as mechanical switches. SSRs must also be chosen for AC or DC applications, as they are not universally interchangeable. Some SSRs require forced air cooling, and may be damaged if not properly ventilated. Please consult the experts at Crydom.com if you are uncertain about your choice of SSR.
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