Industrial Automation » Input/Output Modules

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Used digital

  • Trusted Seller
    B&r Digital Output Module

    B&r Digital Output Module

    • Manufacturer: B & R

    New, No Box Name: Digital Output Module | Arrival date: 09-23-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Weight (lb.): 1 | Available quantity: 1

    $500 USD
    Euclid, OH
  • Trusted Seller
    Siemens Digital Output Module

    Siemens Digital Output Module

    • Manufacturer: Siemens
    • Model: 6ES7

    New Name: Digital Output Module | Arrival date: 09-15-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Weight (lb.): 1 | Available quantity: 1

    $175 USD
    Euclid, OH
  • Westinghouse,5X00034G01,Digital Input Module

    Westinghouse,5X00034G01,Digital Input Module

    • Manufacturer: Westinghouse

    “New, no box” What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day...

    $900 USD
    Galion, OH
  • Trusted Seller
    Allen Bradley Lot Of 10

    Allen Bradley Lot Of 10 8 Point Digital Output Modules

    • Manufacturer: Allen-Bradley
    • Model: 1734

    Q10, Made In Singapore, New Open Box Name: Lot Of 10 8 Point Digital Output Modules | Arrival date: 10-13-2025 | Dimensions l x w x h (inches): 7 x 4 x 3 | Weight (lb.): 1 | Available quantity: 3

    $500 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley PLC-5 Series 16-point

    Allen Bradley PLC-5 Series 16-point Digital Output Module

    • Manufacturer: Allen-Bradley

    New Open Box Name: PLC-5 Series 16-point Digital Output Module | Arrival date: 08-29-2025 | Dimensions l x w x h (inches): 13 x 11 x 9 | Electrical: 0.7A @ 5VDC, 50/60Hz, 12-120VAC | Weight (lb.): 2 | Available q...

    $100 USD
    Euclid, OH
  • Trusted Seller
    Siemens Simatic 6ES 132-6BH01-0BA0 Digital

    Siemens Simatic 6ES 132-6BH01-0BA0 Digital Output Module

    • Manufacturer: Siemens
    • Model: SIMATIC

    You are buying one (1) Siemens Simatic 6ES 132-6BH01-0BA0 Digital Output Module. It is new in unopened factory packaging.

    $179 USD
    Austinville, VA
  • Trusted Seller
    Siemens 6ES7-322-1BL00-0AA0 Digital Output Module

    Siemens 6ES7-322-1BL00-0AA0 Digital Output Module

    • Manufacturer: Siemens
    • Model: 6ES7322

    Came from working unit 30 day warranty Wr6 Bin8 Mpn: 6ES7-322-1BL00-0AA0 | Ebay product id (epid): 153445752 | Custom bundle: No | Controller platform: S7/300 | Upc: 0040892560664 | Ean: 0040892560664 | Gtin: 004...

    $50 USD
    Muskegon, MI
  • Trusted Seller
    Siemens 505-4716 Digital Output Module

    Siemens 505-4716 Digital Output Module

    • Manufacturer: Siemens

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. Please submit all questions PRIOR to your purchase. *Your purchase includes a 30 day wa...

    $50 USD
    Suwanee, GA
  • Trusted Seller
    RED LION GEM10060 6 DIGIT

    RED LION GEM10060 6 DIGIT LED DIGITAL COUNTER MODULE NEW WITH BOX STOCK 5205CC

    • Manufacturer: Red Lion Controls

    RED LION GEM10060 6 DIGIT LED DIGITAL COUNTER MODULE NEW WITH BOX STOCK 5205CC

    $1,950 USD
    Montgomeryville, PA
  • Trusted Seller
    Siemens 6ES7 322-1HH01-0AA0 Simatic S7

    Siemens 6ES7 322-1HH01-0AA0 Simatic S7 Digital Output

    • Manufacturer: Siemens
    • Model: 6ES7

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. Please submit all questions PRIOR to your purchase. Your purchase includes a 30 day war...

    $50 USD
    Suwanee, GA
  • Honeywell IDK161A 120VAC Isolated Digital

    Honeywell IDK161A 120VAC Isolated Digital AC Input Module

    • Manufacturer: Honeywell

    “Good Working Condition.” Honeywell IDK161A 120VAC Isolated Digital AC Input Module. Product Details Brand: Honeywell Model: Honeywell IDK161A Analog/Digital: Digital Type: Input Module We endeavor to take clear ...

    $72 USD
    Greenville, SC
  • Trusted Seller
    Siemens 6ES7 321-1BH10-0AA0 Digital Input

    Siemens 6ES7 321-1BH10-0AA0 Digital Input Module

    • Manufacturer: Siemens
    • Model: 6ES7

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. Please ask any questions you have PRIOR to your purchase. *Your purchase includes a 30 ...

    $200 USD
    Suwanee, GA
  • Westinghouse 5X00034G01 REV 02 Digital

    Westinghouse 5X00034G01 REV 02 Digital Input Module (6.4.3)

    • Manufacturer: Westinghouse

    Westinghouse 5X00034G01 REV 02 Digital Input Module Palmetto Automation Inc. of Duncan SC specializes in buying, selling, and repairing obsolete Used, Refurbished, and New industrial electronic equipment. Most of...

    $49 USD
    Duncan, SC
  • Weidmüller/Bailey NRDO01 Digital Output Module.

    Weidmüller/Bailey NRDO01 Digital Output Module. 3C-12

    • Manufacturer: Bailey

    Items are spares/engineering demo hookups that were pulled from an industrial working environment. We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, ...

    $257 USD
    Duncan, SC
  • Trusted Seller
    Allen Bradley 1734-OB8 Series C

    Allen Bradley 1734-OB8 Series C 24 VDC Digital Output Module

    • Manufacturer: Allen-Bradley
    • Model: 1734

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions must be submitted PRIOR to auction close. Your purchase includes a 30 day...

    $155 USD
    Suwanee, GA
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Overview

Input/Output (I/O) modules are essential components in industrial automation systems. They serve as the interface between various field devices and the control system, allowing the exchange of data and signals. I/O modules can handle both analog and digital inputs and outputs, making them crucial for monitoring and controlling processes in manufacturing, energy, and other sectors.

FAQ

What should I consider when buying an I/O module?

Consider the compatibility with your existing control system, the number of input and output channels, and the type of signals (analog or digital) it supports. Reliability and ease of integration are also important factors.

How do I ensure the I/O module is shipped safely to my location?

Use a reputable shipping service that specializes in electronics. Ensure the module is properly packaged with anti-static materials and secured to prevent damage during transit.

What is the maintenance schedule for an I/O module?

Regular maintenance includes inspecting connections for wear or corrosion, ensuring the module is clean and free from dust, and checking for any firmware updates from the manufacturer. Consult the manufacturer’s manual for detailed maintenance intervals.