Industrial Automation » Input/Output Modules

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Used peripherals

  • Trusted Seller
    Allen Bradley 1734-AENT Ser B

    Allen Bradley 1734-AENT Ser B Ethernet/IP TP Media I/O Adapter 24VDC

    • 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...

    $295 USD
    Suwanee, GA
  • Wago 750-333 Profibus Fieldbus Coupler

    Wago 750-333 Profibus Fieldbus Coupler Module w/ Input & Output Modules D17

    • Manufacturer: Wago

    Wago Modules (1) 750-333 Profibus Fieldbus Coupler (3) 750-402 Input (4) 750-502 Output (1) 750-602 Power Supply (5) 750-504 Output (8) 750-492 Analog Input (5) 750-554 Analog Output (1) 750-454 Input (1) 750-600...

    $800 USD
    Springfield, NH
  • Trusted Seller
    Square D ROM122 Series B

    Square D ROM122 Series B SY/MAX Analog Output Module

    • Manufacturer: Square D

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $90 USD
    Suwanee, GA
  • Trusted Seller
    Honeywell 621-4500 Input Module

    Honeywell 621-4500 Input Module

    • Manufacturer: Honeywell

    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 auction close. If applicable, we will gladly refun...

    $95 USD
    Suwanee, GA
  • NEW Emerson KJ3243X1-BK1 DeltaV Profibus

    NEW Emerson KJ3243X1-BK1 DeltaV Profibus DP Interface Card - Sealed Bag E17

    • Manufacturer: Emerson
    • Model: KJ3243

    NEW Open Box Emerson DeltaV Profibus DP Interface Card Cat #: KJ3243X1-BK1 Rev F New in Original Open Box Static Bag with Intact Seal as Shown New (Other) Surplus, Excess Inventory Located at Bitter End Trading L...

    $2,700 USD
    Springfield, NH
  • Trusted Seller
    Square D ROM122 Series A4

    Square D ROM122 Series A4 SY/MAX Analog Output Module

    • Manufacturer: Square D

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $90 USD
    Suwanee, GA
  • Trusted Seller
    Allen Bradley 1734-IB8 Series D

    Allen Bradley 1734-IB8 Series D Input Module

    • Manufacturer: Allen-Bradley
    • Model: 1734

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

    $50 USD
    Suwanee, GA
  • Trusted Seller
    Siemens 322-1HH01-0AA0 Simatic S7 Output

    Siemens 322-1HH01-0AA0 Simatic S7 Output Module

    • Manufacturer: Siemens

    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 ...

    $50 USD
    Suwanee, GA
  • Trusted Seller
    Square D ROM122 Series E

    Square D ROM122 Series E SY/MAX Analog Output Module

    • Manufacturer: Square D

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $90 USD
    Suwanee, GA
  • Trusted Seller
    Allen Bradley 1734-OB8E Series C

    Allen Bradley 1734-OB8E Series C Output Module w/ 1734-MB and 1734-RTB

    • Manufacturer: Allen-Bradley
    • Model: 1734

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

    $175 USD
    Suwanee, GA
  • Trusted Seller
    Square D SY/MAX 8030 ROM

    Square D SY/MAX 8030 ROM 221 Series H Relay Output Module

    • Manufacturer: Square D

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $45 USD
    Suwanee, GA
  • Trusted Seller
    Square D SY/MAX 8030 ROM

    Square D SY/MAX 8030 ROM 221 Series F2 Relay Output Module

    • Manufacturer: Square D

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $45 USD
    Suwanee, GA
  • Trusted Seller
    Square D SY/MAX 8030 ROM

    Square D SY/MAX 8030 ROM 221 Series G Output Module

    • Manufacturer: Square D

    PLEASE REVIEW: We would ask that potential buyers please view the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $45 USD
    Suwanee, GA
  • Trusted Seller
    Turck BL20-E-8DI-24VDC-P Input Module

    Turck BL20-E-8DI-24VDC-P Input Module

    • Manufacturer: Turck

    PLEASE REVIEW: We would ask that potential buyers please examine the photographs carefully, and understand what you are buying. All questions should be submitted prior to your purchase. Your purchase is protected...

    $45 USD
    Suwanee, GA
  • Trusted Seller
    Allen-Bradley 1734-232ASCII

    Allen-Bradley 1734-232ASCII

    • Manufacturer: Allen-Bradley
    • Model: 1734

    “This item was removed from working equipment, inspected, cleaned and found in very good condition.”

    $320 USD
    Saint-Jean-sur-Richelieu, Canada
1617181920

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.