Product Details
Product Description
The Allen-Bradley 1761-L32BWB MicroLogix 1000 is a compact PLC designed for small-scale automation tasks. It provides 32 I/O points, relay outputs, and digital inputs with EEPROM memory for program storage. Equipped with RS-232 communication and DF1 protocol support, it offers reliable control for basic machine operations.
Technical Specifications
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Manufacturer Allen-Bradley
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Product Line MicroLogix 1000
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Product Type Programmable Logic Controller (PLC)
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Part Number 1761-L32BWB
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Weight 1.00 lbs (0.45 kg)
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Inputs 20 digital inputs (sinking/sourcing)
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Input Voltage Range 14–30 VDC
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Outputs 12 relay outputs
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Output Current Range 4–20 mA
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I/O Count 32 points total
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Memory 1K EEPROM (approx. 737 instruction words, 437 data words)
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Communication Port RS-232
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Supported Protocols DF1
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Safety Feature Master Control Relay
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Power Supply 20.4–26.4 VDC
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Input Power Consumption 7 W
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Inrush Current 30 A for 4 ms
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Operating Frequency 47–63 Hz
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Operating Shock 10 G
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Non-Operating Shock 20 G
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Minimum Power Cycles 50,000
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Dimensions (L x W x H) 7.87 x 1.57 x 3.15 inches
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Lifecycle Status Discontinued/Obsolete
Application Scenarios
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Small machine control requiring basic relay outputs
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OEM equipment with limited I/O requirements
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Cost-effective automation for standalone systems
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Legacy installations where MicroLogix 1000 controllers are still in use
FAQ
Q: How many I/O points does the 1761-L32BWB provide? A: It provides 32 points (20 inputs and 12 relay outputs).
Q: What type of communication is supported? A: RS-232 communication using DF1 protocol.
Q: Is this model still in production? A: No, it is discontinued/obsolete but may be available through aftermarket suppliers.
Comparison with Similar Models
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1761-L16BWB: Smaller I/O capacity with fewer inputs and outputs.
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1761-L32BWB: Mid-range option with 32 I/O points.
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1762-L24BWA (MicroLogix 1200): Successor series with expanded features and memory.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.
Mastering Wire Identification in Industrial Automation: The Power of Ferrules and Cross-Ferruling
Proper wire labeling forms the cornerstone of reliable control system installation and long-term maintenance. In complex industrial automation environments, technicians terminate thousands of conductor ends inside control panels, marshalling racks, and field junction boxes. Ferrules serve as individual tube-shaped sleeve markers slipped onto conductors before final termination. While technicians historically relied on pre-printed individual letter rings, modern control panel builders utilize automated ferrule printing machines. These thermal-transfer printers generate durable, single-sleeve heat-shrink tags directly matching approved wiring schematics, significantly accelerating cabinet assembly workflows.