Industrial Automation » Programmable Logic Controllers (PLC)

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Used Programmable Logic Controllers (Plc)

  • Trusted Seller
    Patriot Gemco 1771-PLS Programmable Control

    Patriot Gemco 1771-PLS Programmable Control Module Software Ver 1771f210

    • Manufacturer: Gemco

    Used, in Good Working Condition. If this item ships as Flat Rate Freight please see details in Shipping tab

    $1,045 USD
    Millersburg, IN
  • ALLEN BRADLEY,837-H1A,TEMPERATURE CONTROL NEW

    ALLEN BRADLEY,837-H1A,TEMPERATURE CONTROL NEW

    • Manufacturer: Allen-Bradley

    “New, box is dirty and distressed from storage.” 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 no...

    $650 USD
    Galion, OH
  • Allen-Bradley MEMORY CONTROLLER PROCESSOR

    Allen-Bradley MEMORY CONTROLLER PROCESSOR

    • Manufacturer: Allen-Bradley

    New in original box. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to make sur...

    $2,000 USD
    Galion, OH
  • Trusted Seller
    GE Fanuc IC693CHS391K Programmable Controller

    GE Fanuc IC693CHS391K Programmable Controller Base 10-Slot IC693CHS391K

    • Manufacturer: Fanuc

    Came from working units 30 day warranty WrO Mpn: IC693CHS391K

    $49 USD
    Muskegon, MI
  • Trusted Seller
    Electrical - [LOT of 3

    Electrical - [LOT of 3 ] Allen-Bradley SLC 5/04 CPU Controller 1747-L542

    • Manufacturer: Allen-Bradley
    • Model: 1747-L542

    Contact us for more information.

    $600 USD
    Millwood, WV
  • TYCO THERMAL CONTROLS,NGC-UIT-OUT,DIGITRACE INTERFACE TERMINAL

    TYCO THERMAL CONTROLS,NGC-UIT-OUT,DIGITRACE INTERFACE TERMINAL PANEL

    • Manufacturer: TYCO THERMAL CONTROLS

    “USED.” 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 Easy ...

    $1,000 USD
    Galion, OH
  • Trusted Seller
    Electrical - [LOT of 3

    Electrical - [LOT of 3 ] Allen-Bradley SLC 5/04 CPU Controller 1747-L542

    • Manufacturer: Allen-Bradley
    • Model: SLC5

    ITEM #: 21020 Used Electrical - [LOT of 3 ] Allen-Bradley SLC 5/04 CPU Controller 1747-L542 Contact us for more information. All prices are FOB Millwood WV unless otherwise noted. Please contact us for alternate ...

    $619 USD
    Millwood, WV
  • Trusted Seller
    Allen Bradley Compact I/o Ab

    Allen Bradley Compact I/o Ab Relay Output Module

    • Manufacturer: Allen-Bradley
    • Model: 1769

    New, Factory Sealed Name: Compact I/o Ab Relay Output Module | Arrival date: 10-10-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Weight (lb.): 1 | Available quantity: 1

    $150 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley Output Module

    Allen Bradley Output Module

    • Manufacturer: Allen-Bradley
    • Model: 1769

    New, Factory Sealed Name: Output Module | Arrival date: 10-10-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Weight (lb.): 1 | Available quantity: 1

    $175 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley Compact I/o

    Allen Bradley Compact I/o

    • Manufacturer: Allen-Bradley
    • Model: 1769

    New, Factory Sealed Name: Compact I/o | Arrival date: 10-10-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Weight (lb.): 1 | Available quantity: 1

    $150 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley Scanner Module

    Allen Bradley Scanner Module

    • Manufacturer: Allen-Bradley
    • Model: 1747

    New Open Box Name: Scanner Module | Arrival date: 10-13-2025 | Dimensions l x w x h (inches): 9 x 9 x 9 | Electrical: 5-24 VDC | Weight (lb.): 1 | Available quantity: 1

    $200 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley Slc500 Processor Unit

    Allen Bradley Slc500 Processor Unit

    • Manufacturer: Allen-Bradley
    • Model: 1747-L551

    New Open Box Name: Slc500 Processor Unit | Arrival date: 10-13-2025 | Dimensions l x w x h (inches): 11 x 9 x 7 | Electrical: 24VDC | Weight (lb.): 1 | Available quantity: 1

    $999 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley Ac Output Module

    Allen Bradley Ac Output Module

    • Manufacturer: Allen-Bradley
    • Model: 1746-OA16

    New Open Box Name: Ac Output Module | Arrival date: 10-13-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Electrical: 50/60/85-265, 0.5A | Weight (lb.): 1 | Available quantity: 1

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

    Allen Bradley Digital Output Module

    • Manufacturer: Allen-Bradley
    • Model: 1746

    New Open Box Name: Digital Output Module | Arrival date: 10-14-2025 | Dimensions l x w x h (inches): 9 x 9 x 9 | Electrical: 85-265 VAC | Weight (lb.): 1 | Available quantity: 1

    $100 USD
    Euclid, OH
  • Trusted Seller
    Allen Bradley Compactlogix Output Module

    Allen Bradley Compactlogix Output Module

    • Manufacturer: Allen-Bradley
    • Model: 1769

    New Factory Sealed Name: Compactlogix Output Module | Arrival date: 10-14-2025 | Dimensions l x w x h (inches): 7 x 7 x 5 | Electrical: 100/240 VAC | Weight (lb.): 1 | Available quantity: 1

    $200 USD
    Euclid, OH
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    Siemens 6ES7633 Programmable Logic Controllers (PLC)

    • Manufacturer: Siemens
    • Model: 6ES7633

    Good condition Siemens 6ES7633 Programmable Logic Controllers (PLC)s. Located in USA and other countries. Click request price for more information.

    USA
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Overview

Programmable Logic Controllers (PLCs) are essential components in industrial automation, used for controlling machinery and processes in manufacturing, production lines, and other automated systems. They are designed to handle multiple inputs and outputs, offering reliable, flexible, and scalable solutions for complex control tasks. PLCs are known for their robustness and ability to operate in harsh industrial environments.

FAQ

What factors should I consider when purchasing a PLC?

Consider the number of input/output points required, the processing speed, memory capacity, compatibility with existing systems, and the specific application needs. Also, check for the availability of technical support and software updates.

How can I ensure safe shipping of a PLC?

Use a reputable shipping service that specializes in delicate electronic equipment. Ensure the PLC is packaged securely with ample padding to protect against shocks and vibrations during transit.

What are the maintenance requirements for a PLC?

Regularly inspect the PLC for dust and debris, ensure proper ventilation, and check connections for any signs of wear or corrosion. Follow the manufacturer's guidelines for firmware updates and system diagnostics to ensure optimal performance.