1771-CFM Allen-Bradley PLC-5 Configurable Flow Meter Module

Allen‑Bradley 1771‑CFM Configurable Flow Meter Module – Technical Overview

Key Technical Specifications

• Manufacturer: Allen‑Bradley
• Part Number: 1771‑CFM – PLC‑5 Configurable Flow Meter Module
• Input Channels: 4 digital inputs – accept magnetic pickup (50 mV‑200V AC peak), TTL (4‑40V DC), or Bently 3300 proximity (5 & 8 mm)
• Output Channels: 4 digital outputs – operate at 5‑40V DC (user‑supplied)
• Maximum Input Frequency: 100 kHz
• Max Count Value: 0 to 9,999,999 (programmable)
• Backplane Current: 1.0 Amp maximum
• Module Scan Time: 1.3‑5 ms
• Max Processing Time: 5.5 ms
• Power Dissipation: 2‑13 Watts
• Operating Temperature: 0‑60 °C (32‑140 °F)
• Storage Temperature: ‑40‑185 °F (‑40‑85 °C)
• Coating: Conformal coat for environmental protection
• Dimensions: 3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
• Weight: 1.9 lbs (0.9 kg)
• Wiring Arm: 1771‑WN (required, sold separately)
• Slot Requirement: 1 slot in PLC‑5 chassis

Frequently Asked Questions (FAQ)

• Q: Is the 1771‑CFM a new and original module?
  A: Yes, we supply 100% new, original Allen‑Bradley modules. No refurbished or counterfeit items.
• Q: Can the 1771‑CFM replace my old 1771‑QRC or 1771‑QRD?
  A: Yes, it directly replaces both modules without requiring any ladder logic changes.
• Q: What types of sensors work with the 1771‑CFM?
  A: It accepts magnetic pickups (50 mV‑200V AC), TTL signals (4‑40V DC), and Bently 3300 proximity pickups (5 & 8 mm).
• Q: What is the maximum input frequency this module can handle?
  A: The maximum input frequency is 100 kHz, suitable for high‑speed turbine flowmeters.
• Q: How many outputs does the module provide and what voltage?
  A: It has 4 digital outputs that operate at 5‑40V DC – you must supply the external power.
• Q: Does the module provide diagnostic information?
  A: Yes, it sends diagnostic data to the PLC processor via configuration block words for easy troubleshooting.
• Q: What is the operating temperature range?
  A: The module operates from 0‑60 °C (32‑140 °F) and stores from ‑40‑185 °F (‑40‑85 °C).
• Q: Do you have stock for immediate shipment?
  A: Yes, we maintain ample stock of the 1771‑CFM. Orders ship within 5 business days.

Contact Information Inquiries: sales@nex-auto.com ， +86 153 9242 9628

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