Industrial Automation » Input/Output Modules

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Used plc peripherals

  • Trusted Seller
    Siemens 505-4516 Output Module

    Siemens 505-4516 Output Module

    • Manufacturer: Siemens
    • Model: 505-4516

    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...

    $45 USD
    Suwanee, GA
  • Trusted Seller
    Allen Bradley 1734-IB8S Series B

    Allen Bradley 1734-IB8S Series B Point Guard I/O Safety 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...

    $795 USD
    Suwanee, GA
  • Trusted Seller
    Allen-Bradley 1734-OW4 Point I/O Output

    Allen-Bradley 1734-OW4 Point I/O Output Module, Series C

    • Manufacturer: Allen-Bradley
    • Model: 1734

    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
  • Trusted Seller
    Honeywell 621-0007 Output Module

    Honeywell 621-0007 Output 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...

    $130 USD
    Suwanee, GA
  • Trusted Seller
    Allen Bradley 1734-AENTR Series B,

    Allen Bradley 1734-AENTR Series B, 2 Port Ethernet/IP TP I/O Adapter

    • 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...

    $250 USD
    Suwanee, GA
  • Trusted Seller
    Allen Bradley 1734-IB8S Ser B

    Allen Bradley 1734-IB8S Ser B Channel 24V Point Guard I/O Safety Module Digital

    • 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...

    $450 USD
    Suwanee, GA
  • Trusted Seller
    Allen Bradley 1734-TBS Ser A

    Allen Bradley 1734-TBS Ser A Point I/O Module Terminal Base

    • 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 should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $20 USD
    Suwanee, GA
  • Trusted Seller
    Allen Bradley 1734-OB4 Series C,

    Allen Bradley 1734-OB4 Series C, 4-Point 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 should be submitted prior to your purchase. *Your purchase includes a 30 ...

    $125 USD
    Suwanee, GA
  • 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
  • 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
    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
  • 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
  • Emerson KJ3243X1-BK1 DeltaV Profibus DP

    Emerson KJ3243X1-BK1 DeltaV Profibus DP Interface Card NEW Open Box F2

    • Manufacturer: Emerson
    • Model: KJ3243

    NEW Open Box Emerson DeltaV Profibus DP Interface Card Cat #: KJ3243X1-BK1 12P4691X042 Rev F New in Original Open Box New (Other) Surplus, Excess Inventory Located at Bitter End Trading LLC in Springfield, NH See...

    $2,200 USD
    Springfield, NH
  • 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
  • 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
678910

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.