Industrial Automation » Programmable Logic Controllers (PLC)

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Used isolator

  • Trusted Seller
    Allen Bradley 1756-OA16I Ser A

    Allen Bradley 1756-OA16I Ser A ControlLogix 16 Point D/O Module *FACTORY SEALED*

    • Manufacturer: Allen-Bradley
    • Model: 1756

    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 ...

    $590 USD
    Suwanee, GA
  • Trusted Seller
    Allen Bradley 1756-IB16I Ser. A

    Allen Bradley 1756-IB16I Ser. A ControlLogix Input Module, FW 3.3

    • Manufacturer: Allen-Bradley
    • Model: 1756

    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 ...

    $65 USD
    Suwanee, GA
  • Trusted Seller
    ALLEN BRADLEY 1771-OQ serie B

    ALLEN BRADLEY 1771-OQ serie B

    • Manufacturer: Allen-Bradley
    • Model: 1771

    Allen-Bradley 24V Isolated Digital Output Module, Model 1771-OQ, Series B Manufacturer: Allen-Bradley Designed for integration into PLC-5 Family I/O chassis (1771 Series) Never used

    Hermosillo, Mexico
  • Trusted Seller
    ALLEN BRADLEY 1771-0FE2 B

    ALLEN BRADLEY 1771-0FE2 B

    • Manufacturer: Allen-Bradley
    • Model: 1771

    PLC5 analog input module model 1771-OFE/B brand ALLEN BRADLEY ANALOG OUTPUT MODULE/PLC5 manufacturer: ALLEN-BRADLEY Never used

    Hermosillo, Mexico
  • Trusted Seller
    SIEMENS Simatic S7

    SIEMENS Simatic S7

    • Manufacturer: Siemens
    • Model: Simatic S7

    Siemens Simatic S7 Interface Module, Part Number 6ES7151-1AB05-0AB0 Manufacturer: Siemens Function: Interface module for the ET200S distributed I/O system, connecting to PROFIBUS DP via fiber optic cable and feat...

    Hermosillo, Mexico
  • Trusted Seller
    MITSUBISHI Isolated Thermocouple Q64TDV-GH Used

    MITSUBISHI Isolated Thermocouple Q64TDV-GH Used

    • Manufacturer: Mitsubishi
    • Model: Q64

    MELSEC-Q Removed from: 150 Ton Newbury Injection Molding Machine Model: 150 Ton Expedited shipping services are available This piece is located at Ideal Machinery, Inc. on our showroom floor. Located at: 10230...

    $78 USD
    Warehouse
  • Trusted Seller
    ALLEN-BRADLEY 1756-IF6CIS A

    ALLEN-BRADLEY 1756-IF6CIS A

    • Manufacturer: Allen-Bradley
    • Model: 1756

    Made in: UNITED STATES | Input resolution: 0-21 milliamps Range | Backplane current (5volts): 250 milliamps | Backplane current (24volts): 275 mA | Power dissipation (max): 5.1 Watts at 60 Celsius | Inputs: 6-Po...

    $690 USD
    British Columbia, Canada
  • Trusted Seller
    ALLEN-BRADLEY 1771-IXE

    ALLEN-BRADLEY 1771-IXE

    • Manufacturer: Allen-Bradley
    • Model: 1771

    Made in: UNITED STATES | Part number: 96214474 A01 | Series: C | Input voltage: +/- 100 mV | Backplane current requirements: 0.85 Amps @ 5 VDC | Backplane current: 750 mA | Inputs: 8 | Interface: Block Transfer ...

    $915 USD
    British Columbia, Canada
  • Trusted Seller
    ALLEN BRADLEY 193-T1AB16 ($24.99/EACH OBO)

    ALLEN BRADLEY 193-T1AB16 ($24.99/EACH OBO)

    • Manufacturer: Allen-Bradley
    • Model: 193-T

    “Very good conditions.” 193T1AB16 THERMAL OVERLOAD RELAY BIMETALLIC 193-T1 IEC 690 VAC RATED ISOLATED VOLTAGE 1.1-1.6 AMP SETTING RANGE FOR USE WITH 100-C09...C23 CONTACTORS

    $25 USD
    Waukesha, WI
  • Trusted Seller
    ALLEN BRADLEY 193-T1AB25

    ALLEN BRADLEY 193-T1AB25

    • Manufacturer: Allen-Bradley
    • Model: 193-T

    “Very good conditions.” 193T1AB25 THERMAL OVERLOAD RELAY BIMETALLIC 193-T1 IEC 690 VAC RATED ISOLATED VOLTAGE 1.8-2.5 AMP SETTING RANGE FOR USE WITH 100-C09...C23 CONTACTORS

    $18 USD
    Waukesha, WI
  • Trusted Seller
    Measurex 09436900 Rv F Unitec

    Measurex 09436900 Rv F Unitec Processor Baseboard PLC 04345100 A Honeywell 2B55A (EBI2745-1)

    • Manufacturer: Honeywell

    Measurex Honeywell MPN: 9436900 USED Unitec Processor Baseboard Module /w 4x Four Channel Isolated High Level Signal Conditioner Revision F 04345100 Revision A 30 day warranty on all purchases. Your purchase will...

    $1,529 USD
    Chattanooga, TN
  • Trusted Seller
    Allen Bradley 1756-IT6I Ser A

    Allen Bradley 1756-IT6I Ser A Rev H01 FW 1.9 ControlLogix Thermocouple Input PLC (DW7849-5)

    • Manufacturer: Allen-Bradley
    • Model: 1756-IT6I/A

    Allen Bradley ControlLogix MPN: 1756-IT6I USED Analog Isolated Input Thermocouple 6pt Input Series A - Cat Rev H01 - F/W Rev 1.9 Plastic clip is broken on bottom of cover (see pictures) Part No. 96187277 A01 30 d...

    $289 USD
    Chattanooga, TN
  • Trusted Seller
    Fisher-Rosemount CL6621X1-DF1 Fan Tray Assembly

    Fisher-Rosemount CL6621X1-DF1 Fan Tray Assembly with Three Fans 12B0318X012 PLC (PM1039-1)

    • Manufacturer: Rosemount

    Fisher Rosemount MPN: CL6621X1-DF1 - CL6621X1 USED Includes Six CL6851X1-A2 Isolated Voltage Inputs Part of a system professionally removed by RCI from a fully operational Fisher-Rosemount Provox PLC setup at a d...

    $98 USD
    Chattanooga, TN
  • Trusted Seller
    Siemens 6ES5-421-8MA12 Simatic S5 Digital

    Siemens 6ES5-421-8MA12 Simatic S5 Digital Input Module

    • Manufacturer: Siemens
    • Model: 6ES

    Used Siemens 6ES5-421-8MA12 Simatic S5 Digital Input Module. 8 Point Non-isolated 24 VDC

    $105 USD
    Millis, MA
  • Trusted Seller
    PLC Direct D2-CTRINT Counter Interface

    PLC Direct D2-CTRINT Counter Interface Module

    • Manufacturer: PLC Direct

    PLC Direct D2-CTRINT Counter Interface Module. 4 Isolated DC Inputs 1 Pulse Train Output (CW) or 2 Pulse Train Outputs(CW,CCW) Used in DL205 Base

    $150 USD
    Millis, MA
910111213

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.