Product Details
Overview
The Allen-Bradley 1771-WS is a single-channel weigh scale module engineered for precise load cell measurement in industrial environments. It processes weight data and communicates with PLC-5 controllers, delivering accurate and reliable performance for critical automation tasks.
Technical Specifications
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Manufacturer: Rockwell Automation
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Brand: Allen-Bradley
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Model & Part Number: 1771-WS
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Series: PLC-5
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Input Power: 5 V DC
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Backplane Current: 1.5 A
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Output Voltage & Power: 10 V DC ±5%, maximum 1.5 W
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Common Mode Rejection: 100 dB
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Frequency: 0.25 Hz
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Compatible I/O Chassis: 1771-A1B, -A2B, -A3B, -A3B1, -A4B, 1771-AM1, -AM2
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Operating Temperature: 0°C to 60°C
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Storage Temperature: -40°C to 85°C
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Humidity: 0% to 90%, non-condensing
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Weight: 0.73 kg (1.6 lbs)
Features
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Single Channel: Handles data from one or more load cells with high precision
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External Power Support: Capable of supporting up to 8 load cells when using an external power source
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Calibration: Accepts calibration values from a data table and transfers them to the PLC-5 processor
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Status Indicators: Dual-color LEDs for Run/Fault and Calibrate/Communication status
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Electrostatic Protection: Module requires grounded handling to prevent damage from electrostatic discharge
Applications
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Industrial weighing systems requiring precise load cell measurement
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Integration with PLC-5 systems for automated weight control
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Process monitoring in manufacturing, chemical, or material handling operations
FAQ
Q: How many load cells can the 1771-WS support?
A: The module supports one channel by default and can interface with up to 8 load cells using an external power supply.
Q: What type of status indicators does the module have?
A: It features red and green LEDs for Run/Fault and Calibrate/Communication monitoring.
Q: Can it operate in harsh industrial environments?
A: Yes, it operates from 0°C to 60°C and can be stored safely from -40°C to 85°C, with 0–90% non-condensing humidity tolerance.
Q: What precautions are needed for handling?
A: The module is sensitive to electrostatic discharge and should be handled with a grounded wrist strap or equivalent grounding method.
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
Redundant Automation Systems: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.