Allen-Bradley 1771-WS SERIES B Weigh Scale Module

The Allen-Bradley 1771-WS SERIES B Weigh Scale Module is a high-performance industrial automation component designed to seamlessly integrate with the Allen-Bradley SLC 500 programmable logic controller (PLC) system. This module provides precise, reliable weight measurement and control capabilities for a variety of industrial processes, including material handling, packaging, and batching. The 1771-WS is engineered to process input from load cells, converting weight data into actionable information for optimized control and automation.

Built for rugged industrial environments, the 1771-WS SERIES B module delivers accurate weight readings in real-time, helping businesses maintain operational efficiency and improve product quality. Its ease of integration with the SLC 500 system and other compatible controllers makes it a preferred choice for industrial applications requiring high-precision weight measurement.

Key Features & Benefits:

• High Accuracy: The 1771-WS SERIES B ensures precise weight measurement with high accuracy, making it ideal for applications that require reliable data for process control.

• Wide Compatibility: This weigh scale module integrates smoothly with Allen-Bradley SLC 500 PLC systems, providing a seamless connection for data communication and control.

• Flexible Configuration: With the ability to interface with multiple load cells, the 1771-WS offers versatile configuration options for different types of weight-based applications, including batching and packaging systems.

• Real-Time Monitoring: It delivers real-time weight data to the connected system, enabling operators to make timely decisions and adjustments to ensure process accuracy and product quality.

• Rugged Design: Built for demanding industrial environments, the 1771-WS SERIES B is designed to withstand harsh conditions, ensuring reliable operation over extended periods.

• Ease of Installation: Designed for straightforward integration with existing control systems, the 1771-WS simplifies setup and reduces downtime during installation.

Technical Specifications:

• Model: 1771-WS SERIES B

• Module Type: Weigh Scale Module

• Compatible System: Allen-Bradley SLC 500 PLC

• Input Channels: Supports up to 4 load cells (dependent on configuration)

• Input Voltage: 10–30V DC

• Output: Digital weight data for system processing

• Input Signal: 4-20 mA or 0-10V from load cells

• Resolution: 16-bit resolution for accurate weight measurement

• Accuracy: ±0.1% of full scale

• Temperature Range: Operating: 0°C to 60°C (32°F to 140°F); Storage: -40°C to 85°C (-40°F to 185°F)

• Humidity Range: 5% to 95% (non-condensing)

• Power Consumption: 12V DC, 400mA maximum

• Compliance: UL, CE, CSA certifications

• Mounting: Designed for easy mounting onto SLC 500 racks

Typical Applications & Use Cases:

• Material Handling Systems: The 1771-WS SERIES B module is commonly used in material handling systems where accurate weight measurements are critical for inventory control and load management.

• Batching and Packaging: It plays a key role in batching systems, ensuring that products are weighed accurately before packaging, thus reducing waste and ensuring consistent product quality.

• Conveyor Systems: Used to weigh products or materials on conveyor belts, this module ensures that weight data is accurately captured and relayed to the control system.

• Tank and Vessel Monitoring: Ideal for monitoring weight in tanks or vessels, the 1771-WS module helps control processes in industries like food and beverage, chemicals, and pharmaceuticals.

• Weighing Scales for Industrial Applications: The 1771-WS is widely used in industrial-scale weighing applications for accurate tracking of raw materials, finished goods, and waste management.

Support & Maintenance:

The 1771-WS SERIES B module is backed by Rockwell Automation’s comprehensive customer support network, providing expert assistance for installation, troubleshooting, and system optimization. With its rugged design, built-in diagnostics, and a long track record of reliability, this module minimizes downtime and ensures consistent performance.

For any issues or questions regarding installation or operation, Rockwell Automation offers a range of documentation and technical resources to assist in maintaining the module's performance and extending its lifespan.

FAQ Section

Q1: How many load cells can the 1771-WS SERIES B support?
The 1771-WS SERIES B can support up to 4 load cells, depending on the configuration of the system.

Q2: What is the accuracy of the 1771-WS module?
The 1771-WS SERIES B offers an accuracy of ±0.1% of full scale, ensuring precise weight measurement for industrial applications.

Q3: Can the 1771-WS SERIES B module be used in harsh environments?
Yes, the 1771-WS SERIES B module is designed for industrial use and can withstand tough environments with an operating temperature range of 0°C to 60°C (32°F to 140°F).

Q4: What types of input signals are supported by the 1771-WS module?
The 1771-WS supports 4-20 mA or 0-10V input signals from load cells, making it versatile for different types of weighing systems.

Q5: Is the 1771-WS SERIES B compatible with other Allen-Bradley controllers?
While primarily designed for use with SLC 500 PLCs, the 1771-WS can be integrated into systems with compatible Allen-Bradley controllers.