Industrial Automation » Input/Output Modules

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Used plc module in doitsu

  • Trusted Seller
    Honeywell PLC Output Module -

    Honeywell PLC Output Module - 621-6550rc

    • Manufacturer: Honeywell

    New Open Box Name: PLC Output Module | Arrival date: 08-25-2025 | Dimensions l x w x h (inches): 13 x 11 x 9 | Electrical: 2-5A, 24VDC | Weight (lb.): 2 | Available quantity: 2

    $120 USD
    Euclid, OH
  • GE Fanuc,IC693MDL340D,PLC Output Module

    GE Fanuc,IC693MDL340D,PLC Output Module

    • Manufacturer: Fanuc
    • Model: IC693MDL340D

    Used in good condition. Part was pulled from operation upon factory shutdown and has been in storage since. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multi...

    $80 USD
    Galion, OH
  • Trusted Seller
    AUTOMATION DIRECT D2-08ND3 PLC INPUT

    AUTOMATION DIRECT D2-08ND3 PLC INPUT MODULE 12-24 VDC

    • Manufacturer: AutomationDirect

    Came from working unit 30 day warranty wr2 Country/region of manufacture: China

    $38 USD
    Muskegon, MI
  • Trusted Seller
    NEW ALLEN BRADLEY 1734-VTM PLC

    NEW ALLEN BRADLEY 1734-VTM PLC MODULE STOCK H1098A

    • Manufacturer: Allen-Bradley
    • Model: 1734

    NEW ALLEN BRADLEY 1734-VTM PLC MODULE STOCK H1098A

    $30 USD
    Montgomeryville, PA
  • Trusted Seller
    SIEMENS SIMATIC S7 6ES7 421-1BL01-0AA0

    SIEMENS SIMATIC S7 6ES7 421-1BL01-0AA0 PLC INPUT MODULE STOCK B-1257

    • Manufacturer: Siemens
    • Model: 6ES7

    SIEMENS SIMATIC S7 6ES7 421-1BL01-0AA0 PLC INPUT MODULE STOCK B-1257

    $45 USD
    Montgomeryville, PA
  • Trusted Seller
    Beckhoff PLC Programming Terminal 4-channel

    Beckhoff PLC Programming Terminal 4-channel Module - Kl4034

    • Manufacturer: Beckhoff
    • Model: KL

    New Open Box Name: PLC Programming Terminal 4-channel Module | Arrival date: 11-05-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Electrical: 85mA | Weight (lb.): 1 | Available quantity: 3

    $110 USD
    Euclid, OH
  • BECKHOFF BK5200 PLC Module w/9

    BECKHOFF BK5200 PLC Module w/9 Input/Output Modules. 3E-38

    • Manufacturer: Beckhoff
    • Model: BK5200

    We repair all types of industrial automation including AC Servo Drives, Servo Motors, Operator Interface Panels, PLC's, Sensors, Process Controls and Timers. Palmetto Automation Inc. of Duncan SC specializes in b...

    $212 USD
    Duncan, SC
  • Allen Bradley 1734-FPD/B Point I/O

    Allen Bradley 1734-FPD/B Point I/O PLC Module, 24VDC. 3D-41

    • Manufacturer: Allen-Bradley
    • Model: 1734-FPD

    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, ...

    $36 USD
    Duncan, SC
  • TEXAS INSTRUMENTS U-05N PLC INPUT

    TEXAS INSTRUMENTS U-05N PLC INPUT MODULE 3F

    • Manufacturer: Texas Instruments

    Used automation parts pulled from storage or the working environment. Tested to the best of our ability. Shows signs of normal use. Here at Palmetto Automation Inc. we endeavor to provide otherwise high cost part...

    $39 USD
    Duncan, SC
  • TEXAS INSTRUMENTS U-55N PLC INPUT

    TEXAS INSTRUMENTS U-55N PLC INPUT MODULE 3F

    • Manufacturer: Texas Instruments

    Used automation parts pulled from storage or the working environment. Tested to the best of our ability. Shows signs of normal use. Here at Palmetto Automation Inc. we endeavor to provide otherwise high cost part...

    $44 USD
    Duncan, SC
  • Reliance Electric AutoMax 57C409 2-Channel

    Reliance Electric AutoMax 57C409 2-Channel PLC Analog Input Module

    • Manufacturer: Reliance Electric
    • Model: 57C409

    “Good Working Condition.” Reliance Electric AutoMax 57C409 2-Channel PLC Analog Input Module. Product Details Brand: Reliance Electric Channels: 2 Feature: Analog Type: PLC Input Module We endeavor to take clear ...

    $305 USD
    Greenville, SC
  • Allen Bradley 1734-TOP SER A

    Allen Bradley 1734-TOP SER A POINT I/O Module PLC Terminal. 3D-28

    • Manufacturer: Allen-Bradley
    • Model: 1734

    Allen Bradley 1734-TOP SER A POINT I/O Module PLC Terminal. Here at Palmetto Automation Inc. we endeavor to provide otherwise high cost parts at decent wholesale prices. Buy with confidence. Money back guarantee....

    $68 USD
    Duncan, SC
  • NEW METSO PLC DIGITAL INPUT

    NEW METSO PLC DIGITAL INPUT MODULE IOP332. Loc.3A1

    • Manufacturer: Metso

    NEW METSO PLC DIGITAL INPUT MODULE IOP332. Palmetto Automation Inc. of Duncan SC specializes in buying, selling, and repairing obsolete Used, Refurbished, and New industrial electronic equipment. Most of our used...

    $329 USD
    Duncan, SC
  • Trusted Seller
    Siemens 6ES7 321-1BH02-0AA0 PLC Module

    Siemens 6ES7 321-1BH02-0AA0 PLC 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 submit all questions PRIOR to your purchase. Your purchase includes a 30 day war...

    $40 USD
    Suwanee, GA
  • TEXAS INSTRUMENTS U-05N PLC INPUT

    TEXAS INSTRUMENTS U-05N PLC INPUT MODULE 8905 3F

    • Manufacturer: Texas Instruments

    Used automation parts pulled from storage or the working environment. Tested to the best of our ability. Shows signs of normal use. Here at Palmetto Automation Inc. we endeavor to provide otherwise high cost part...

    $44 USD
    Duncan, SC
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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.