X-15S™ | 8 Digital Input Expansion Module

$179.99

The X-15S™ adds eight optically isolated digital inputs to an X-400™ or X-600M™ controller, providing reliable status monitoring while maintaining electrical separation between field equipment and low-voltage control circuits. This isolation improves safety and reduces the risk of ground loop interference in industrial environments.

Multiple X-15S™ modules can be connected to the host controller via ribbon cable for power and communication, enabling scalable expansion for large systems. Typical applications include alarm panel integration, equipment status monitoring, safety interlocks, and facility automation.

8 Digital Inputs

Expansion Module for the X-400 or X-600M

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Security Sensors, Storage, Access Control, & More

An X-400 or X-600M connected with an expansion module like the X-15S provides an easy, flexible, and reliable way to monitor and control systems and devices over a network. The X-15S is fit for applications that include storage facilities, access control, and security. It’s great for monitoring door sensors, digital pulse meters, button/switch inputs, machine status, and more.

See All Expansion I/O

X-15S Features

  • 8 optically isolated digital inputs
  • Digital input functions: Monitor State, Control Relays, Control Remote Relays, Count, Frequency, High Time, ON Time
  • 8 LEDs for inputs 1-8
  • Removable terminal connector
  • Powered through expansion bus (no separate power supply connections are required)

X-15S Master Devices

  • X-400™ | Modular I/O Controller

    X-400™ | Modular I/O Controller

     Price range: $299.99 through $399.99
    TThe 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.

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  • X-600M expandable I/O controller

    X-600M™ | Web-Enabled I/O Controller

     $549.99
    The 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

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

   

(Example images are shown. Label and terminal connector may differ)

Specifications

Power Requirements
  • Voltage: 9-28 VDC (supplied via the X-400 or X-600M controller, 24V recommended)
  • Max Current: See table below for typical values at 25°C.
Power Supply All Opto-couplers OFF All Opto-couplers ON
9 VDC 17 mA 88 mA
12 VDC 13 mA 66 mA
24 VDC 8 mA 36 mA

Digital Inputs
  • Number of Inputs: 8
  • Type: Optically-Isolated
  • Voltage Range: 3-26VDC
  • Current: 0.6mA @ 3V, 8.2mA @ 26V
  • Minimum Hold Time: 2.5mS
  • Input Isolation: 1500V
  • Input Functions: Monitor State, Control Relays, Control Remote Relays, Count, Frequency, High Time, ON Time
  • Maximum Count: 32-bit
  • Max Count Rate: 200Hz
  • Edge Trigger: Rising, Falling or Both
  • High Time: Pulse width (4,194,304 seconds max)
  • On Time: Accumulated time an input is asserted (4,194,304 seconds max)
  • Frequency: 1Hz min, 200 Hz max

Connectors
  • Inputs: 12-Position, 3.81mm terminal spacing, Removable. For 16-28 AWG wire.
  • Expansion Connector: Ribbon cable, 10-conductor, polarized, 2×5-position, 0.100″ pitch Provides power and communications for expansion modules (Communications: RS-485)
LED Indicators
  • Number of LEDs: 9
    • Power on
    • Digital Inputs 1-8
Physical
  • Size:
    • 1.41in (35.7mm) wide
    • 3.88in (98.5mm) tall
    • 3.1in (78mm) deep (not including connector)
  • Weight: 4.8 oz (136 g)
  • Enclosure Material: Lexan 940 Polycarbonate Plastic
  • Enclosure Flame Rating: UL94 V0
Environmental
  • Operating Temperature: -40°F to 150°F (-40°C to 65.5°C)
  • Storage Temperature: -40°F to 185°F (-40°C to 85°C)
  • Humidity: 5-95%, non-condensing
  • Altitude: Up to 2,000m
  • Indoor use or NEMA-4 protected location

Electromagnetic Compliance
  • IEC CISPR 22, CISPR 24
  • FCC 47CFR15 (Class B)
  • EN55024 ITE Immunity (2010)
  • EN55022 Emissions (2010)
Product Safety Compliance
  • UL 61010-1
  • E468316-A1
  • CSA-C22.2
  • CCN: QUYX, QUYX7

 

Manuals & Downloads

Users Manuals

X-15S Users Manual

Catalog

X-15S Data Sheet (PDF)

ControlByWeb Product Catalog

Other Downloads

X-15S 3D Model (.stp)

Accessories

 

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For your convenience we have set up a live X-600M unit connected to its expansion modules (i.e., X-11S, X-12S, X-13S, X-15S, and X-16S) 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 the expansion modules’ relays, and view the current status of the inputs, and monitor temperature (X-600M & X-13S) through its dashboard page.

X-332™

Digital Input Control Page

X-600M™

Control Page Setup Pages*

*Setup page login information:

Username: admin

Password: webrelay

X-600M 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.

Schedule Free Consultation

 

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

X-600M Setup and Programming Demo

X-600M Setup

The diagrams illustrate how this demonstration is wired. The relays on all expansion modules are not connected to a load; however, you can still access and control the relays by turning them on or off through the X-600M dashboard. The X-600M is also wired to a temperature sensor, and the X-13s is connected to a thermocouple. Both sensors can be monitored on the X-600M’s dashboard. The digital input states on the X-15s only changes when a voltage is applied to the inputs. For this demonstration, we have connected one of our X-332 controllers to Input 1 on the X-15s. You can apply a voltage to this input 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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    X-410™ | Edge Programmable Controller

     Price range: $299.99 through $399.99
    The X-410™ is a versatile industrial I/O controller with four relays, four digital inputs, and one temperature input, designed for reliable edge control. Its built-in web server allows for efficient deployment and its embedded GUI logic builder enable event-driven or scheduled automation without external software or licensing fees.
    Through peer-to-peer communication, the X-410™ can seamlessly expand with other ControlByWeb® devices, making it an efficient choice for system integrators and OEMs who need scalable, protocol-ready control in demanding environments.
    • 4 Relays & 4 Digital Inputs
    • Up to 16 Temperature Sensors
    • Ethernet, Cellular, or WiFi
    • 9-28VDC and/or POE
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  • X-408™ Digital Input Module with 8 optically isolated inputs for monitoring dry contacts, counters, and frequency

    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.

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400 Series Guided Demo

Self-Guided, Live Demo of our Products

SETUP PAGES

Use the Setup Page to set up I/O, change settings, and create logic with intuitive dropdown menus.

CONTROL PAGE

Use the Control Page to see I/O status and manually control relays.

*Setup page login information: Username: admin Password: webrelay

Schedule A Guided Walkthrough

Want a little extra guidance? Schedule a 15-minute guided demo with our sales engineers. They’ll show you how it works for your application.

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