Allen‑Bradley 2711‑B5A20 PanelView 550 keypad/touch HMI replacement

by

Intro Summary
5.5″ monochrome PanelView 550 touch‑keypad replacement for industrial HMI with Ethernet and RS‑232 support.

Product Overview
The 2711‑B5A20 is an Allen‑Bradley PanelView 550 standard operator terminal featuring a 5.5″ blue‑mode monochrome LCD (256×128), integrated membrane touch and F1–F10/function keypad. It offers EtherNet/IP and RS‑232 ports, RS‑232 printer capability, RS‑232/DH‑485 communications, built‑in LED backlight, memory card slot, status LEDs. Ideal for replacing worn touch/keypad assemblies to revive PanelView 550 controllers.

How to Use

  1. Power down and remove PanelView bezel per manual guidelines .
  2. Peel off old keypad and disconnect ribbon cable from PCB connector.
  3. Align new membrane keypad/touch panel, plug ribbon, secure internal screws.
  4. Reinstall bezel using specified torque (1.13 Nm) and gasket seal .
  5. Power on, check COMM/FAULT LEDs, adjust brightness via configuration mode (arrow keys + F9) .
    Tips: Ensure clean panel surface before adhesive; backlight is non‑replaceable in Series H/B ; avoid using HMI for emergency stop functions.

Related Videos

Frequently Asked Questions (FAQ)

  1. Is this compatible with all PanelView 550 models?
    Yes—from Series A to H with keypad or keypad+touch support
  2. Does it support DC power?
    Series B models support touch versions for 24 V DC; keypad versions require AC power .
  3. Is the backlight replaceable?
    Series H/B have integrated non‑replaceable LED backlight .
  4. How do I program or upload HMI screens?
    Use PanelBuilder32 + RSLinx, connect via DH‑485 or RS‑232 DF1 ports with correct cable .
  5. Can I use RS‑232 port for uploads?
    Only DF1 path; printer port cannot transfer files. Use DH‑485 .
  6. Do I need torque specs for installation?
    Yes—nuts to 1.13 Nm to ensure NEMA/IP sealing .
  7. What about firmware or serial number?
    No firmware update needed; retains original unit’s firmware and ID.
  8. Hazardous location ratings?
    Class I Div 2 rated; Series H/B operate to T4 (135 °C) .
  9. Touchscreen unresponsive—disable keypad?
    Keypad enables/disables via configuration mode. Use arrow + left/right keys .
  10. Is keypad adhesive?
    The keypad overlays, connects via ribbon—non‑permanent but durable once installed.

User Review Summary
From Monitech customer reviews:

  • “Installation was straightforward — peel, stick, and connect. Now it feels like new with crisp, responsive keys.”
  • “Knowing it’s from the OEM itself gave me confidence in quality and compatibility.”
    Pros: OEM‑grade fit, easy DIY replacement, tactile keys, revived aging HMI.
    Cons: Backlight not serviceable; older units remain small display and AC‑powered only options.

Comparison with Competing Products

  • Overlay vs Monitech MF550K OEM keypad:
    Both tactile with adhesive; Monitech priced at ~$131 with warranty . Overlay kits are generic, more affordable.

Technical Specifications
Display: 5.5″ monochrome, 256×128, active area 120×60 mm
Input: Membrane touch + F1–F10, cursor, numeric keys
Ports: EtherNet/IP, RS‑232 printer, DH‑485/RS‑232 DF1 communication
Power: 85–264 V AC, 47–63 Hz (DC variant available for Series B touch)
Memory: 170 KB runtime, 240 KB non‑volatile
Backlight: LED lifespan 100 k hrs
Enclosure: NEMA‑12/13, 4X (indoor), IP54/65
Dimensions: Approx. 14×11×8″—terminal panel dimensions 165×125 mm cut‑out
Weight: ~6 lb
Operating: 0–55 °C (32–131 °F)
Certifications: Class I Div 2, T4 hazardous rated

Brand or Manufacturer Info
Allen‑Bradley (Rockwell Automation) is renowned for industrial automation reliability and legacy HMI controllers. The PanelView 550 series is widely deployed and supported across manufacturing, utilities, and OEM applications.

Purchase Recommendations

Leave a Comment