The Ethernet I/O Experts
Leading Technology in Ethernet Relays, Data Acquisition, and Remote I/O MonitoringView Ethernet and Wi-Fi I/O Products
Industrial-Grade I/O Monitoring and Control Devices Made in the USA Since 1999
Manufactured in-house and in stock
Responsive, knowledgeable tech support
Scalable solutions for any industrial application
Quality is our first priority
Cost-effective, self-contained devices
Flexible communications & compatibility
Connect any device... Monitor & control over the web
Our Remote I/O Controllers and Ethernet I/O products are designed to be extremely reliable for web control and monitoring of electrical devices. We feature a variety of I/O products, such as the original WebRelay™ which is a web-controlled relay with a digital input that we developed back in 2005. Since then, we have been making top-of-the-line products for industrial automation, data collection, and monitoring.
Many of our products include various inputs and outputs such as relays, digital inputs, analog inputs, 1-Wire bus for monitoring temperature & humidity, etc. that can be used with our built-in software to remote control/monitor electrical devices. Most of our I/O products support email notifications, scheduling, logging, BASIC interpreter, communication with a variety of protocols (Modbus, SMNP, SMTP, etc.), and many more features.
All ControlByWeb® products have built-in web servers and can be setup, monitored, and controlled using a web browser. In addition, our products can be monitored and controlled using custom computer applications as well as our CBW Mobile app for all smart phones and tablets.
Web-Enabled Drop-In Solutions for Remote Monitoring & Control
Remote Relay Control
With our Peer-to-Peer communication and remote control capabilities, our Ethernet I/O devices are ideal for remote relay control. You can control a relay remotely based on an input on a ControlByWeb device (peer-to-peer) or you can remotely turn on pumps, open gates, or lock buildings via the built-in web server on each device.
Our I/O devices can be used as stand-alone industrial controllers, as a small and affordable control system, or integrated into larger industrial automation and SCADA systems.
They work in a variety of industrial automation applications such as building automation, environmental monitoring and control, security automation, and water/wastewater processing.
Data Acquisition & Remote Monitoring
ControlByWeb provides an easy and reliable way to affordably monitor and control remote assets and/or processes. Our Ethernet I/O products combine traditional automation hardware with the flexibility of IP networking.
Each device has a built-in web server, and can be accessed via a standard web browser over a LAN, WAN, or via the Internet. There is no special software or app required, no drivers to install, and no monthly subscriptions.
How to use ControlByWeb products
ControlByWeb's Ethernet I/O products can be used as a stand-alone device that can be integrated with an existing system.
They can also be used in peer-to-peer mode where multiple ControlByWeb products can communicate with each other, allowing you to control outputs based on another devices output or input status.
ControlByWeb's stand-alone products can be used as slave modules to controllers such as the X-600M™ Web-Enabled Programmable Logic Controller.
- Stand-alone device or drop-in solutions
- Controller with attached and/or remote slave modules
- Peer-to-peer communication
- Built-in web server (no software or cloud services)
Input & Outputs
- Relays can be used to control a device in a remote location using a standard web browser
- Digital Inputs can be monitored or used to control a local/remote relay based on the inputs state
- Analog Inputs can be monitored or used to control relays based on a custom value
- Other available I/O options: Temp/humidity, thermocouple, frequency, digital I/O, etc.
- Various models support: Email notification, scheduling, logging, automatic reboot, BASIC script interpreter, communicates with various protocols, and more.