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 ratio for accurate measurements.
• Wide operating temperature: 0°C to 60°C with 0-90% humidity tolerance.
• Compatible with 1771-A1B, A2B, A3B, A4B, AM1, AM2 chassis.

Technical specifications

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Series: PLC 5
• Model: 1771-WS
• Product type: Weigh Scale Module
• Input voltage: 5V DC
• Backplane current: 1.5A
• Power consumption: 7.5W
• CMRR: 100 dB
• Operating temperature: 0°C to +60°C
• Storage temperature: -40°C to +85°C
• Humidity: 0-90% non-condensing
• Compatible chassis: 1771-A1B, A2B, A3B, A3B1, A4B, AM1, AM2
• Mounting: Fits standard PLC-5 I/O chassis
• Diagnostics: Integrated fault detection

Installation guide

• Insert 1771-WS into any compatible 1771 series I/O chassis slot.
• Module draws 5V DC power directly from backplane at 1.5A.
• Connect load cells or weigh scale sensors to module terminals.
• Configure module parameters using PLC 5 programming software.
• Ensure ambient temperature remains within 0°C to 60°C range.

Package contents

• 1× Allen-Bradley 1771-WS Weigh Scale Module
• 1× installation manual
• 1× warranty document

Shipping: FedEx, UPS, DHL worldwide.

FAQ

• What is 1771-WS?
  Weigh scale module for Allen-Bradley PLC 5 systems. Operates on 5V DC at 1.5A with 100 dB CMRR. 0°C to 60°C operating range.
• Which chassis are compatible?
  Works with 1771-A1B, A2B, A3B, A3B1, A4B, AM1, and AM2 chassis. Fits any standard PLC 5 I/O slot.
• What is the power requirement?
  Requires 5V DC from backplane at 1.5A. Total power consumption is 7.5W. No external power supply needed.