X-17S™ | 4 Relay, 4 Input Expansion Module

$179.99

The X-17S™ adds four Form-A (SPST) relays and four optically-isolated digital inputs to an X-400™ or X-600M™ controller, making it a versatile expansion option for both control and monitoring. Relays are designed for moderate load switching, while optical isolation ensures electrical separation between field equipment and low-voltage control circuits—improving safety and reducing interference.

Multiple X-17S™ modules can be connected via ribbon cable for power and communication, enabling scalable expansion. Typical applications include equipment control, alarm panel monitoring, pump or fan management, and facility automation.

4 Relays

4 Digital Inputs

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

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The Go-To for Remote Applications

The X-17S is a versatile expansion module, offering the flexibility to monitor sensors and control devices over a network when paired with the X-400 or X-600M. Common applications include center pivot, simple tank monitoring, and moderate-light loads like solenoid valves, alarms, and indicator lights.

See All Expansion I/O

X-17S Features

  • Four isolated relays (SPST)
  • Relay Functions: On, Off, Pulse
  • Four optically-isolated digital inputs (common negative)
  • Input Functions: On/Off Status, Pulse Count, Pulse Duration, Accumulated Pulse Time, Frequency
  • Powered through expansion bus (no separate power supply connections are required)
  • Eight LEDs for inputs and outputs
  • Removable terminal connector

X-17S Master Devices

  • X-400™ | Modular I/O Controller

    X-400™ | Modular I/O Controller

     $299.99 – $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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(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 & Relays OFF All Opto-couplers & Relays ON
9 VDC 18 mA 224 mA
12 VDC 14 mA 165 mA
24 VDC 8 mA 86 mA

Relay Contacts
  • Number of Relays: 4
  • Max Voltage: 125VAC, 30VDC
  • Max Current: 2.5A
  • Contact Type: SPST (Form A)
  • Load Type: General purpose
  • Contact Resistance: < 100 milliohms initial
  • Contact Material: AgSnO2
  • Electrical Life: 100K operations (Min)
  • Mechanical Life: 5M cycles (Min)
  • Environmental Rating: Over voltage Category II, Pollution Degree 2
  • Relay Modes: On/Off or Pulsed
  • Pulse Timer Duration: 0.1 to 86,400 Seconds (1-day)
Digital Inputs
  • Number of Inputs: 4
  • 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: 1 Hz min, 200 Hz max
Connectors
  • Relays & Inputs: 14-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
    • Relay coil energized 1-4
    • Digital Inputs 1-4
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)

Manuals & Downloads

Users Manuals

X-17S Users Manual (PDF)

Catalog

X-17S Data Sheet (PDF)

ControlByWeb Product Catalog

Other Downloads

X-17S 3D Model (.stp)

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For your convenience we have set up a live X-600M unit connected to several expansion modules (i.e., X-11S, X-12S, X-13S, X-15S,and X-16S). The X-17S will be connected and used similarly to these expansion modules. These expansion modules contain a variety of inputs and outputs that allow you to see how the X-600M works with its expansion modules. By clicking the links below you have full access to these live units. 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

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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.

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X-600M Setup and Programming Demo

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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.

Related Products…

  • Single X-410 with Cell, WiFi, and POE icons

    X-410™ | Edge Programmable Controller

     $299.99 – $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
    Cellular and WiFi are Now Available. Note that X-410CW and X-410W models include cellular and WiFi capability respectively, which allows for more flexibility for your application.

    Global Cellular Coverage. Discuss international cellular options with a sales engineer.

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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.