Analog I/O Controllers
Expand your I/O capability with Analog I/O Devices from ControlByWeb®. Quickly monitor and control analog sensors, control relays, and log your data for future use. Our devices are known for features like embedded logic, data logging, and an intuitive drop-down interface. They also offer flexibility to systems integrators with optional connectivity through WiFi, cellular, and the ControlByWeb Cloud. Click here to learn more about analog inputs on ControlByWeb devices.
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X-412™ | 4‐Channel Relay & Analog Input Module
Price range: $369.99 through $469.99VIEW PRODUCTView Product This product has options that may be chosen on the product pageThe X-412™ is an Ethernet-based I/O controller with four high-resolution analog inputs and four relays, engineered for precise monitoring in industrial and OEM applications. Its browser-based interface and embedded GUI logic builder enable event-driven automation, scheduling, and data acquisition—without external software or licensing fees.
Functions as a stand-alone monitoring device with support for open protocols (Modbus, MQTT, SNMP, REST), the X-412™ integrates seamlessly into SCADA and PLC systems, providing a reliable and scalable solution for process monitoring, equipment control, and facility automation.- 4 Relays
- 4 Analog Inputs
New Cellular Option: The X-412CW model includes a cellular modem, compatible with our cellular data plans.
WiFi is Now Available. The X-412CW model includes WiFi capability which allows for more flexibility and cost savings for your application.
Global Cellular Coverage. Discuss international cellular options with a sales engineer.[frequentlyBought ids="7624,7916,34491,7781"]
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X-432™ | Advanced I/O Controller
$629.99VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product pageThe X-432™ is a standalone, Ethernet-based controller with 38 onboard I/O points, designed for demanding industrial and OEM applications. Its browser-based interface and embedded GUI logic builder allow engineers to configure complex event-driven automation, scheduling, and monitoring tasks—without external software or recurring licensing fees.
Supporting open protocols including Modbus, MQTT, SNMP, and REST, the X-432™ integrates seamlessly into SCADA and PLC systems. With both local and remote control capabilities, it delivers scalable performance for applications requiring reliable, high-density I/O at the edge.- 16 Relays
- 18 Digital Inputs
- 4 Analog Inputs
- Up to 16 Temperature Sensors
[frequentlyBought ids="7621,34491,7540,7798"]
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X-400™ | Modular I/O Controller
Price range: $299.99 through $399.99VIEW PRODUCTView Product This product has options that may be chosen on the product pageTThe X-400™ is a scalable Ethernet-based controller that supports up to 32 local expansion modules or remote ControlByWeb® devices through peer-to-peer communication, enabling systems with up to 64 I/O points. Its browser-based interface and embedded GUI logic builder provide event-driven automation for powerful turn-key solutions and seamless integration with SCADA and PLC platforms—without licensing fees.
X-400C™ – Cellular-Enabled Model
The X-400C™ adds a built-in cellular modem, extending the same modular control and integration capabilities to remote or distributed applications.
- Expandable, Up to 64 I/O
- Relays, Analog & Digital Inputs
- Up to 16 temp sensors
- Cellular version available
Global Cellular Coverage. Discuss international cellular options with a sales engineer.
[frequentlyBought ids="7635,34491,7624,7577"]
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X-600M™ | Web-Enabled I/O Controller
$549.99VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product pageThe X-600M™ is ControlByWeb’s most advanced controller, built for large-scale industrial and OEM applications. Supporting up to 64 expansion modules and 1,024 I/O points, it’s engineered for high-density, complex systems.
With an embedded logic builder, LUA scripting for advanced control, and support for multiple customizable dashboards, the X-600M™ gives engineers powerful tools for automation and visualization. Open protocol support (Modbus, SNMP, peer-to-peer) ensures seamless integration with SCADA and PLC systems, delivered without licensing fees or proprietary lock-in.- Expandable, Up to 1,024 I/O
- Relays, Analog/Digital/Thermocouple Inputs
- Up to 32 Temperature Sensors
- GUI Dashboard
[frequentlyBought ids="7635,7621,7318,7289"]
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X-417™ | Analog Output Module
Price range: $369.99 through $449.99VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product pageThe X-417™ is an industrial analog output controller offering up to five individually programmable outputs, with model numbers (X-417-1 through X-417-5) corresponding to the number of outputs available. This modular approach allows you to scale cost-effectively, selecting only the channels you need for your application.
The X-417™ can operate as a stand-alone device with its embedded GUI logic builder and browser-based interface, or integrate seamlessly with SCADA, PLC, and OEM systems using open protocols with no licensing fees required.Up to 5 Analog Outputs
Analog Signal Mirroring
V, mA outputs
[frequentlyBought ids="7624,7621,7793"]
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X-418™ | 8-Channel Analog Input Module
Price range: $369.99 through $399.99VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product pageThe X-418™ is an industrial-grade analog input controller with eight configurable analog-to-digital channels, designed for reliable monitoring of process variables such as tank or bin level, pressure, flow, current, and more.
It can function as a stand-alone device with its embedded GUI logic builder and browser-based dashboards, or integrate seamlessly into SCADA, PLC, and IIoT platforms using open protocols. The X-418™ delivers accurate, scalable sensor monitoring without licensing fees or vendor lock-in—ideal for OEM equipment, utilities, and process automation environments.8 Analog Inputs (multi-function)
±1.28V, ±2.56V, ±5.12V, ±10.24V
4-20mA (Inputs 1-4 only)
[frequentlyBought ids="7621,34491,7916,7781"]
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X-420™ | Instrumentation-Grade Data Acquisition
Price range: $369.99 through $399.99VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product pageThe X-420™ is a versatile industrial controller with software-programmable digital I/O that can be configured as either inputs or outputs, giving engineers flexibility to adapt the module to a wide range of applications.
It can operate as a stand-alone device with its embedded GUI logic builder and browser-based dashboards, or integrate seamlessly with SCADA, PLC, and IIoT systems using open protocols. Ideal for process monitoring, facility automation, or OEM equipment, the X-420™ delivers adaptable control without licensing fees or vendor lock-in.4 Analog Inputs
2 Digital I/O
Up to 16 Temperature Sensors
[frequentlyBought ids="7621,34491,7916,7781"]
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X-16S™ | 8 Analog Input Expansion Module
$359.99VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product pageThe X-16S™ adds eight analog inputs to an X-400™ or X-600M™ controller, delivering high-resolution measurement with a 24-bit A/D converter. Inputs can be configured for single-ended or differential readings, providing flexibility for a wide range of sensor types. A built-in 5.0V reference output allows direct connection of potentiometers and other resistance-based sensors.
Connected via ribbon cable for both power and communication, one or more X-16S™ modules can be added to scale analog input capacity. Common applications include process monitoring, flow and pressure sensing, tank or bin level measurement, and precision instrumentation.8 Analog Inputs
Expansion Module for the X-400 or X-600M
[frequentlyBought ids="7635,7916,7781"]
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X-19S™ | Multi-Purpose I/O Expansion Module
$389.99VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product pageThe X-19S™ is a versatile expansion module for the X-400™ and X-600M™ controllers, combining 16 relays, 16 optically isolated digital inputs, and 4 analog inputs in a single unit. Screw terminal strips provide secure, industrial-grade connections for all I/O points.
As a high-density module, the X-19S™ is ideal for applications that require large-scale control and monitoring in a compact footprint, such as building automation, process control, and OEM equipment. Multiple X-19S™ units or other expansion modules can be connected via ribbon cable to scale I/O capacity as needed.16 Relays
16 Digital Inputs
4 Analog Inputs
Expansion Module for the X-400 and X-600M
[frequentlyBought ids="7635,7696,34091,7916"]
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X-22S™ | 8 Analog Input Expansion Module
$349.99VIEW PRODUCTView Product This product has multiple variants. The options may be chosen on the product pageThe X-22S™ adds eight high-resolution analog inputs to an X-400™ or X-600M™ controller, supporting multiple voltage ranges as well as 4–20mA current-loop sensors. This flexibility makes it ideal for integrating a wide range of industrial and process instrumentation.
Engineered for accuracy and reliability, the X-22S™ is well-suited for applications such as tank or bin level monitoring, flow and pressure measurement, and energy or environmental data acquisition. Multiple X-22S™ modules can be connected via ribbon cable to expand analog input capacity as needed.8 Analog Inputs
Expansion Module for the X-400™ or X-600M™
[frequentlyBought ids="7635,7916, 22960"]
Overview
Analog Inputs
Analog sensors (not included), provide many real-world values such as position, water level, flow, voltage, current, etc., which can be measured and viewed over an IP network using a web browser. Sensors that output a range of: ±1.28V, ±2.56V, ±5.12V, ±10.24V, 4-20mA can be connected to most ControlByWeb products with analog inputs. See products below for more details.
Analog Outputs
The X-417 has five precision 16-bit digital-to-analog converters (DACs). Each channel can be programmed for 0-5V, 0-10V, ±5V, ±10V, 4-20mA ranges. The voltage and current outputs for each channel are on a single connector terminal.
Most industrial analog applications require isolation between the power supply and analog outputs. The X-417 has a built-in DC-DC converter for providing isolated power to the outputs. No external isolated back plane power is needed.
Trigger Relay Contacts
Configure analog sensor values to trigger relays (connected to alarm signals, heaters, fans, etc.), and to send email messages. Analog sensor values can even control relays on other ControlByWeb products located somewhere else on a network!
Built-In Web Server
Our products have a built-in web server which allow analog I/O to be monitored or controlled with a web browser, XML formatted text, or Modbus/TCP. Fully configure our devices in minutes using a web browser. No software needed.
Features
- Analog Input Ranges:
±1.28V, ±2.56V, ±5.12V, ±10.24V, 4-20mA - Analog Output Ranges:
0-5V, 0-10V, ±5V, ±10V, 4-20mA - Email/Text alerts
- Control relays based on preset thresholds
- Custom Logic – No programming required
- Built-in web server
- Configurable control and status web page
- Modbus/TCP support
- XML formatted status
- Password protected
- Rugged, DIN rail or wall mount enclosure
- Power supply options: 9-28 VDC and/or POE