X-408™ | Digital Input Module

Price range: $219.99 through $249.99

The X-408™ is an eight-channel input controller with optically isolated digital inputs, purpose-built for reliable dry contact monitoring in industrial and commercial environments.

It can operate as a stand-alone device using its embedded GUI logic builder and browser-based interface, or integrate seamlessly with SCADA, PLC, and IIoT systems via open protocols. Whether deployed for alarms, equipment status, or facility monitoring, the X-408™ delivers dependable digital input management without licensing fees or vendor lock-in.

8 Digital Inputs

Discrete On/Off

Counters

Frequency

Frequently Bought Together


In Stock, Ready to Ship

The X-408 can be used to monitor alarm panels, door sensors, flow meters, or digital pulse meters. It can be used in Peer-to-Peer (P2P) communication with other ControlByWeb modules for a wide variety of applications to increase digital inputs on your monitoring and control platform.

X-408 Features

  • Email Notifications
  • Customizable Web-Based Dashboard
  • Peer-to-Peer Networking
  • Data Logging
  • 400 Series Platform

X-408 Applications

  • Door & Access Control
  • Alarm Panel Monitoring
  • Parking Sensor Monitoring
  • Digital Pulse Meter Monitoring
  • See more applications

Need Help Choosing the Right Product?

Let our Sales Engineers identify the right solution for your application.

Integration Icon

Integration Ready

We support HTTP GET, XML, JSON, SNMP, Modbus TCP/IP, and our Cloud API with more on the way.

No-Code Logic Icon

No-Code Programmable Logic

Our intuitive Task Builder empowers you to build custom logic using drop-down menus in an if-this-then-that flow.

Peer-to-Peer Icon

P2P Networking & Remote I/O

Devices can communicate through Peer-to-Peer (P2P) networking to share I/O among other ControlByWeb controllers, assign any device as master, set up multiple masters, and link remote inputs and relay control.

Email Notifications Icon

Email Notifications

Stay in control of operations with real-time monitoring. Add intelligence to your emails through programmable logic to instantly send notifications to the right people and eliminate false alarms.

Built-In Firmware Icon

Easy-to-Use Embedded UI

Our devices come with a simple embedded user interface that will enable you to easily monitor, manage, and control ControlByWeb PLCs from any standard web browser.

Data Logging Icon

Data Logging

Enjoy scheduled and conditional logging with email and FTP log exports. Add the optional ControlByWeb Cloud for remote access and downloadable logs.

Cloud Compatible Icon

Cloud Compatible

Enhance your capabilities with the ControlByWeb Cloud. Gain enhanced features such as simplified remote device access, data logging, and advanced analytics.

Security Icon

Trusted Device Security

Our controllers have no built-in OS or file system, making them less prone to vulnerabilities. Third-party consultants and government agencies test the cybersecurity of our controllers.

IIoT Icon

IIoT Monitoring & Control

Access the device directly through an assigned IP address. Set up your network settings the way you want, to limit or allow remote access through the cloud.

X-408 Case Studies

 

Specifications


Models
  • X-408-I
  • X-408-E
Power Requirements
  • Voltage:
    • X-408-I: 9-28 VDC
    • X-408-E: POE and/or 9-28 VDC
  • Max Current: 240mA
Digital Inputs
  • Number of Inputs: 8
  • Type: Optically-Isolated
  • Voltage Range: 4-26VDC
  • Current: 950uA @ 4V, 8.5mA @ 26V
  • Minimum Hold Time: 20ms
  • Input Functions: Monitor State, Control Relays, Control Remote Relays, Scalable Counter, On Timer, Total On Timer, Frequency
  • Maximum Count: 24-bit
  • Max Count Rate: 200Hz Max (Dependent on Configuration)
  • Edge Trigger: Rising, Falling or Both
Real-Time Clock:
  • Manual or NTP(Network Time Protocol) setup
  • NTP Sync Period: Once, Daily, Weekly, On Powerup
  • Auto Daylight Savings Adjustment
  • Battery (capacitor) Power Backup
Capacitor Power Backup
  • Backup Functions: Retain Real-Time Clock, 1 Register, 2 Counters, 4 Relay States
  • Backup Duration: 2 week minimum
Network
  • Type: 10/100 Base-T Ethernet Port
  • Setup: Static or DHCP IP address configuration
Connectors
  • Power and Inputs: 14-Position, 3.81mm terminal spacing, Removable. For 16-28 AWG wire.
  • Network: 8-pin RJ-45
LED Indicators
  • Number of LEDs: 11
    • Power on
    • Digital Inputs 1-8
    • Network linked
    • Network activity
Physical
  • Operating Temperature: -40°F to 150°F (-40°C to 65.5°C)
  • Size:
    • 1.41in (35.7mm) wide
    • 3.88in (98.5mm) tall
    • 3.1in (78mm) deep (not including connector)
  • Weight: 5 oz (142 grams)
  • Enclosure Material: Lexan 940 Polycarbonate Plastic
  • Enclosure Flame Rating: UL94 V0
Protocols
  • HTTP, HTTPS, SSL, XML, MQTT, Modbus TCP/IP, SNMP, SMTP, Remote Services
Logging
    • Log File Size: 512K (up to 8,448 logs)
    • Storage: Nonvolatile Flash
    • Buffer Architecture: Circular Buffer

Log data can be periodically stored on a computer via FTP or email.

Advanced Features
  • Task Builder
  • BASIC interpreter
  • Remote services
Password Settings
  • Password Length: 6-18 Characters
Electromagnetic Compliance
  • IEC CISPR 22, CISPR 24
  • EU EN55024, EN55022
  • X-408-I: FCC 47CFR15 (Class B)
  • X-408-E: FCC 47CFR15 (Class A)

Manuals & Documentation


Downloads


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For your convenience we have set up a live X-408 unit for testing and evaluation. By clicking the links below you have full access to this live unit. You can make changes to the configuration and settings through the setup pages and you can control X-408 through its control page. The control page allows you to change the state of the relay and view the current state of the input.

X-408™


Control Page Setup Pages*

*Setup page login information:

Username: admin

Password: webrelay

X-408 live demonstration setup

Live Demo With One of Our Sales Engineers

Let’s make it easy with a live demo and screen sharing.

Set up a one-on-one Q & A with one of our experts. We’ll help you find the best solutions for your next project and walk you through a demonstration.


Low on time? Watch a pre-recorded demo instead:

400 Series Setup and Programming Demo

X-408 Setup

The diagram illustrates how this demonstration is wired. Nothing is connected to the relay contacts; however, you can still turn the relay on and off to see how it works. The input state only changes when a voltage is applied to the input. For this demonstration, we have connected one of our X-332 controllers to the input of the X-408. You can apply a voltage to the input of the X-408 by accessing the control page for the X-332 (Digital Input Control Page).

Important Information

  • Multiple users may be accessing this device simultaneously so the device can change while you are using it.
  • This unit will be reset to factory defaults daily at 2:30AM MST.
  • Please DO NOT change network or password settings.

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