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
Allen-Bradley 1785-MR CMOS RAM Module 4K Words
Allen-Bradley 1785-MR Memory Module The Allen-Bradley 1785-MR is a CMOS RAM memory module. It stores 4000 words for PLC-5 controllers. This module fits in I/O racks....
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$249.00$249.00 $386.00/ -
Allen-Bradley
Allen-Bradley 1785-LT2 PLC-5 Controller 13K SRAM
Allen-Bradley 1785-LT2 Controller The Allen-Bradley 1785-LT2 is a PLC-5 controller. It has 13K SRAM memory and communication ports. This controller uses 24VDC power. Technical Specifications Brand...
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$196.00$196.00 $269.00/ -
Allen-Bradley
Allen-Bradley 1785-L40C15/F PLC-5/40C Controller
Allen-Bradley 1785-L40C15/F Processor The Allen-Bradley 1785-L40C15/F is a PLC-5/40C processor. It has 48K words SRAM and supports 2048 I/O points. This controller includes ControlNet ports. Technical...
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$241.00$241.00 $359.00/ -
Allen-Bradley
Hot-Backup Memory Cartridge 1785-CHBM Allen-Bradley
Allen-Bradley 1785-CHBM Memory Cartridge The Allen-Bradley 1785-CHBM is a hot-backup memory cartridge. It stores data for PLC systems. This cartridge weighs 0.1 kg. Technical Specifications Brand...
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$245.00$245.00 $349.00/ -
Allen-Bradley
PLC 5 1771-WS Analog Weigh Module Allen-Bradley
Key features & benefits Precision weigh scale module for Allen-Bradley PLC 5 systems. 5V DC operation with 1.5A backplane current consumption. 100 dB common mode rejection...
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$163.00$163.00 $187.00/ -
Allen-Bradley
Allen-Bradley 1771-WN I/O Wiring Arm
Key features & benefits 40 terminals with tin plating for reliable digital system connections. Supports up to 32 I/O points with 10-32 VDC typical range. Accepts...
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$114.00$114.00 $154.00/ -
Allen-Bradley
Allen-Bradley 1771-WC 10-Terminal Wiring Arm 8 I/O
Key features & benefits 10 terminals with 8 I/O capacity for compact wiring applications. Rugged environmental specs 30g shock, 2g vibration tolerance. Operating temperature 0°C to...
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$125.00$125.00 $148.00/ -
Allen-Bradley
1771-WA Allen-Bradley Wiring Arm 10 Terminals
Allen-Bradley 1771-WA Wiring Arm Module Allen-Bradley presents the 1771-WA Wiring Arm module for PLC I/O connections. This terminal assembly provides reliable wiring termination for up to...
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$256.00$256.00 $304.00/ -
Allen-Bradley
1771-P7 Allen-Bradley 120/220V AC PLC Power Supply
Allen-Bradley 1771-P7 Power Supply Module Allen-Bradley presents the 1771-P7 power supply module for PLC backplane applications. This unit delivers reliable 5V DC power with 16A output...
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$199.00$199.00 $275.00/ -
Allen-Bradley
Allen-Bradley 1771-OWNA Output Module
Allen-Bradley 1771-OWNA Digital Contact Output Module Allen-Bradley presents the 1771-OWNA digital contact output module for industrial control applications. This module provides 32 normally open outputs for...
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$195.00$195.00 $260.00/ -
Allen-Bradley
Allen-Bradley 1771-OVN 32 Output DC Module 10-30V
Allen-Bradley 1771-OVN Digital DC Output Module Allen-Bradley presents the 1771-OVN digital DC output module for industrial PLC applications. This 1771 series module provides 32 outputs with...
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$220.00$220.00 $299.00/ -
Allen-Bradley
Allen-Bradley 1771-OFE1 Analog Output Module 4 Channel
Allen-Bradley 1771-OFE1 Analog Output Module Allen-Bradley presents the 1771-OFE1 analog output module for precision industrial control applications. General Information Brand: Allen-Bradley Model: 1771-OFE1 Module Type: Analog...
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$258.00$258.00 $345.00/
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...




































