Collection: Allen-Bradley PLC-2 / PLC-3 / PLC-5
PLC-2, PLC-3, and PLC-5 controllers are legacy Allen-Bradley products still in use for long-term industrial automation projects. They offer proven reliability and compatibility with older I/O modules and networks.
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Allen-Bradley
1771-OFE2 Allen-Bradley Analog Output Module 4 Channel
Allen-Bradley 1771-OFE2 Output Module The Allen-Bradley 1771-OFE2 is an analog output module. It has 4 isolated 4-20mA outputs. This module mounts in PLC racks. Technical Specifications...
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$259.00$259.00 $399.00/ -
Allen-Bradley
Allen-Bradley 1771-IVN Digital Input Module 32 Input
Allen-Bradley 1771-IVN Input Module The Allen-Bradley 1771-IVN is a digital input module. It has 32 DC inputs in 4 groups. This module mounts in PLC racks....
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$269.00$269.00 $322.00/ -
Allen-Bradley
Allen-Bradley 1785-MS Memory Module 8000 Words
Allen-Bradley 1785-MS Memory Module The Allen-Bradley 1785-MS is a CMOS RAM memory module. It stores 8000 words for PLC-5 systems. This module fits in PLC racks....
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$256.00$256.00 $348.00/ -
Allen-Bradley
PLC-5 Classic Series Processor 1785-LT Allen-Bradley
Allen-Bradley 1785-LT Processor The Allen-Bradley 1785-LT is a PLC-5 processor module. It has 6K words RAM and controls up to 3072 I/O points. This processor includes...
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$259.00$259.00 $349.00/ -
Allen-Bradley
Allen-Bradley 1771-WG 240VAC Terminal Arm
Key features & benefits 21 terminals with 10A/240VAC rating for low resistance applications. Supports up to 16 I/O points with 10 AWG max wire size. Signal...
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$162.00$162.00 $185.00/ -
Allen-Bradley
Allen-Bradley 1771-WF Wiring Arm 18-Terminal
Key features & benefits 18 terminals with 85-265VAC range for flexible AC applications. Supports up to 8 I/O points with <10ms response time. Signal delay: 29±8ms...
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$165.00$165.00 $187.00/ -
Allen-Bradley
1771-OW16 16 Output PLC Module Conformal Coated Allen-Bradley
Allen-Bradley 1771-OW16 Digital Contact Output Module Allen-Bradley presents the 1771-OW16 digital contact output module for industrial PLC applications. This 1771 series module provides 16 outputs with...
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$159.00$159.00 $258.00/ -
Allen-Bradley
PLC 5 Temperature Input Card | 1771-IXE Allen-Bradley
Allen-Bradley 1771-IXE Thermocouple Input Module The Allen-Bradley 1771-IXE is a thermocouple input module. It works with PLC 5 control systems. This module measures temperature from thermocouples....
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$186.00$186.00 $275.00/ -
Allen-Bradley
1771 Series Input Module 1771-IA | Allen-Bradley
Allen-Bradley 1771-IA Digital Input Module The Allen-Bradley 1771-IA is a digital input module. It accepts AC and DC voltage signals. This module works with 1771 chassis...
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$167.00$167.00 $258.00/ -
Allen-Bradley
Allen-Bradley 1771-A4B Backplane Chassis 16 Slots
Allen-Bradley 1771-A4B I/O Chassis The Allen-Bradley 1771-A4B is a 16-slot I/O chassis. It houses modules for PLC-5 and SLC 500 control systems. Core Specifications Brand &...
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$199.00$199.00 $240.00/ -
Allen-Bradley
Panel Mount I/O Chassis | Allen-Bradley 1771-A3B1
Allen-Bradley 1771-A3B1 I/O Chassis The Allen-Bradley 1771-A3B1 is a 12-slot I/O chassis. It houses modules for PLC-5 and SLC 500 control systems. Core Specifications Brand &...
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$186.00$186.00 $249.00/ -
Allen-Bradley
1771-A3B PLC Chassis - Allen-Bradley | 24A Power
Allen-Bradley 1771-A3B: High-Capacity 12-Slot I/O Chassis The Allen-Bradley 1771-A3B I/O chassis delivers exceptional expansion for demanding control systems. This powerful 12-slot rack provides superior connectivity for...
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$215.00$215.00 $330.00/
Product Guide
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Cloud-Edge Collaborative Control Digital Transformation Industry Equipment PHM Monitoring PLC DCS Optimization Smart Factory OEEby AdalynAdalyn
How does hierarchical control raise factory OEE from 64% to 82%?
This article explains how hierarchical cloud-edge collaborative control replaces fragmented industrial architectures....
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Boiler turbine coordination Cloud DCS application DCS predictive control Intelligent energy balance optimization Power grid peak regulation Power plant energy saving Thermal power DCS regulationby AdalynAdalyn
Can DCS Intelligent Regulation Fix Thermal Power Energy Imbalance?
This article explains how intelligent DCS regulation with MPC and cloud-based control solves energy-production imbala...
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control system upgrade DCS iteration energy saving automation manufacturing efficiency PLC program optimizationby AdalynAdalyn
Can Continuous Automation Iteration Cut Factory Costs by 18-25%?
Static industrial control systems create hidden annual cost increases of 18-25%. Phased PLC and DCS program iteration...
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DCS communication reliability EMC certification IEC 61000-4 extreme environment automation factory automation uptime Industrial control anti-interference hardware PLC system stability smart factory operational efficiency TSI signal integrityby AdalynAdalyn
Can Anti-Interference Hardware End 38% of Automation Downtime?
Field data from chemical, wind, and automotive plants proves that industrial hardware with full IEC 61000-4 EMC certi...
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Factory Operational Efficiency Industrial Automation ISO 55001 Compliance PLC DCS Asset Management Predictive Maintenance Smart Equipment Traceabilityby AdalynAdalyn
How Does Full-Lifecycle Management Optimize PLC and DCS Assets?
Traditional industrial asset management relies on manual logging and reactive troubleshooting, causing 15–20% annual ...
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centralized spare stock control system maintenance emergency supply chain factory downtime reduction PLC DCS TSI sparesby AdalynAdalyn
Can an Integrated Spare Chain Slash Downtime?
Unplanned equipment failures cost Chinese factories ¥636,000 per hour. Traditional cross-border spare procurement tak...




































