Allen-Bradley 1761-L16BWB MicroLogix 1000 Programmable Controller – MicroLogix 1000 Series
When a MicroLogix 1000 controller fails on the production floor, the consequences are immediate and costly. Conveyor lines halt, assembly robots freeze mid-cycle, and packaging systems go dark — all while downtime costs accumulate by the minute. In discrete manufacturing, food processing, and HVAC control environments, the 1761-L16BWB is not a replaceable commodity; it is the brain of the operation. Without it, there is no process.
The Allen-Bradley 1761-L16BWB occupies a well-defined position within Rockwell Automation’s MicroLogix 1000 family — the entry-level yet highly capable tier of the MicroLogix platform. With 16 onboard I/O points (10 DC inputs / 6 relay outputs), 24VDC input power, and dual communication ports (RS-232 and DH-485), this unit delivers the connectivity and reliability that global OEMs and system integrators have depended on for decades. It remains one of the most widely deployed compact PLCs in the Allen-Bradley ecosystem worldwide.
Technical Specifications
- Part Number / SKU: 1761-L16BWB
- Series: MicroLogix 1000
- Manufacturer: Allen-Bradley / Rockwell Automation
- Total I/O Points: 16 (10 Inputs / 6 Outputs)
- Input Type: 24VDC Sink/Source
- Output Type: Relay (Normally Open)
- Supply Voltage: 24VDC
- Communication Port 1: RS-232 (Channel 0)
- Communication Port 2: DH-485 (Channel 1)
- Program Memory: 1K words
- Data Memory: 1K words
- Instruction Set: Standard ladder logic (relay, timer, counter, math, comparison)
- Real-Time Clock: Not included (optional add-on)
- Operating Temperature: 0°C to 60°C (32°F to 140°F)
- Storage Temperature: -40°C to 85°C
- Relative Humidity: 5% to 95% (non-condensing)
- Enclosure Rating: Open type (panel mount)
- Weight: Approx. 180 g
- Certifications: UL, CE, CSA
Key Features & Benefits
- Compact Form Factor: Fits in tight panel spaces without sacrificing I/O capacity — ideal for machine-level control in space-constrained enclosures.
- Dual Communication Ports: RS-232 for programming and HMI connectivity; DH-485 for multi-drop network integration with other Allen-Bradley devices.
- Relay Outputs: Versatile dry-contact relay outputs handle AC and DC loads, solenoids, and motor starters without additional interface relays.
- 24VDC Operation: Powered directly from standard 24VDC control panels — no separate power supply transformer required in most installations.
- RSLogix 500 / RSLogix Micro Compatible: Fully programmable with Rockwell’s industry-standard software, ensuring seamless integration into existing Allen-Bradley engineering environments.
- Proven Reliability: Designed for continuous industrial duty with robust EMI shielding and vibration resistance per IEC standards.
- Wide Ecosystem Support: Compatible with MicroLogix expansion I/O modules (1762 series), enabling scalable system growth.
Industry & Equipment Applications
- Discrete Manufacturing: Assembly line sequencing, part detection, and conveyor control.
- Food & Beverage: Filling machine control, batch processing, and conveyor indexing.
- HVAC & Building Automation: Fan/pump control, damper sequencing, and alarm management.
- Water & Wastewater: Pump station control, level monitoring, and valve actuation.
- Packaging Machinery: Label applicators, case erectors, and wrapping machine logic.
- OEM Machine Builders: Embedded controller for custom machinery requiring compact, reliable PLC control.
- Material Handling: Sortation systems, lift tables, and automated guided vehicle (AGV) interfaces.
System Integration & Compatible Parts
The 1761-L16BWB integrates seamlessly within the broader Allen-Bradley MicroLogix and SLC 500 ecosystem. Compatible and commonly paired components include:
- Expansion I/O: 1762-IQ8, 1762-OW8, 1762-IF4 (analog input), 1762-OF4 (analog output)
- Communication Cables: 1761-CBL-PM02 (RS-232 to PC), 1761-CBL-HM02 (RS-232 to HMI)
- Programming Software: RSLogix Micro (free), RSLogix 500
- HMI Panels: PanelView Component C400, C600 series
- Network Adapters: 1761-NET-AIC (DH-485 to RS-232 converter)
- Power Supplies: 1606-XLP series 24VDC power supplies
Our Quality Assurance Process
Every Allen-Bradley 1761-L16BWB unit sourced and supplied by Konmask.com undergoes a rigorous multi-stage quality verification process before shipment:
- Visual Inspection: Physical examination for damage, corrosion, counterfeit markings, and label authenticity.
- Functional Verification: Power-on test to confirm LED status indicators, communication port response, and I/O point continuity.
- Traceability Check: Serial number and date code verification against known authentic Allen-Bradley production records.
- Anti-Static Packaging: All units are packed in ESD-safe bags with foam cushioning and moisture barrier packaging for safe international transit.
- Documentation: Certificate of conformance and inspection report available upon request.
How to Order
- Submit your inquiry via the Contact / RFQ form on this page or email support@konmask.com.
- Provide your required quantity, delivery timeline, and destination country.
- Receive a formal quotation with lead time and shipping options within 24 business hours.
- Confirm the order and receive proforma invoice for payment processing.
- Unit ships with full tracking and commercial invoice documentation.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation: We focus exclusively on PLC, DCS, servo, and HMI components — not a generalist marketplace.
- ✅ Global Export Experience: Serving buyers in Southeast Asia, the Middle East, Europe, and the Americas with compliant export documentation.
- ✅ Fast Response: RFQ responses within 24 hours; urgent orders prioritized.
- ✅ Authenticity Guaranteed: Every unit passes our in-house QA process before dispatch.
- ✅ Flexible MOQ: Single-unit orders accepted — no minimum order quantity requirement.
- ✅ After-Sales Support: Technical guidance on installation, wiring, and software configuration available post-purchase.
Frequently Asked Questions
Q: Is the 1761-L16BWB still in production by Rockwell Automation?
A: The MicroLogix 1000 series has reached end-of-life status with Rockwell Automation. However, Konmask.com maintains stock of new and surplus units to support ongoing maintenance and replacement needs for installed base systems.
Q: What is the difference between 1761-L16BWB and 1761-L16AWA?
A: The primary difference is the power supply and output type. The L16BWB operates on 24VDC with relay outputs, while the L16AWA operates on 120/240VAC with relay outputs. Choose based on your panel power architecture.
Q: Can I program the 1761-L16BWB with RSLogix Micro?
A: Yes. RSLogix Micro is the free programming software provided by Rockwell Automation specifically for the MicroLogix 1000 series and is fully compatible with the 1761-L16BWB.
Q: Does this unit support analog I/O?
A: The 1761-L16BWB does not have onboard analog I/O. Analog capability can be added via 1762 series expansion modules such as the 1762-IF4 (4-channel analog input) or 1762-OF4 (4-channel analog output).
Q: What shipping methods are available for international orders?
A: We ship via DHL Express, FedEx International, and UPS Worldwide. Sea freight consolidation is available for bulk orders. All shipments include full tracking and commercial documentation.
Q: Do you provide a warranty on the 1761-L16BWB?
A: Yes. Konmask.com provides a 90-day functional warranty on all units. Units that fail under normal operating conditions within the warranty period will be replaced or refunded.
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