Product Details
Product Overview
The Allen Bradley 2711P-K4M20D functions as a compact, rugged Human-Machine Interface (HMI) within the PanelView Plus 400 family. This terminal provides essential visualization and control for small-scale automation applications, utilizing a 3.8-inch grayscale display and a high-tactile keypad. Although the manufacturer classifies this series as discontinued, we supply this unit as 100% Brand New and Original, allowing engineers to maintain existing control systems without the high cost of migrating to newer hardware platforms.
Part Number Breakdown
The 2711P-K4M20D nomenclature identifies its specific hardware configuration:
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2711P: PanelView Plus Series platform.
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K: Keypad input (Numeric and Navigation keys).
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4: 400 Series (3.8-inch display size).
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M: Grayscale (Monochrome) FSTN display type.
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20: Combined Ethernet and RS-232 communication ports.
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D: 18–30V DC input power (Nominal 24V DC).
Technical Specifications
The following data outlines the mechanical and electrical characteristics of the terminal:
| Feature | Specification |
| Display Type | Grayscale Passive Matrix FSTN |
| Resolution | 320 x 240 Pixels |
| Display Area | 77 x 58 mm (3.0 x 2.3 in.) |
| Input Interface | Industrial Keypad (Numeric/Navigation) |
| Keypad Lifespan | 1 Million Actuations |
| Communication | Ethernet, RS-232, 2 USB Host Ports |
| Input Voltage | 18–30V DC |
| Power Consumption | 25 Watts Max (1.0 A @ 24V DC) |
| System Memory | 64 MB |
| Weight | 1.25 lbs (0.57 kg) |
Engineering Advantages
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Optimized for Harsh Environments: The grayscale FSTN display remains legible across a wide range of lighting conditions and temperatures. Unlike touchscreens, the physical keypad ensures reliable input even when operators wear heavy industrial gloves or work in greasy environments.
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Integrated Communication Hub: Dual onboard ports (Ethernet and RS-232) facilitate simultaneous connection to modern high-speed networks and legacy serial-based PLCs. This versatility simplifies data bridging between different generations of automation hardware.
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Compact Footprint Mounting: The slim design and DC power requirement make this unit ideal for small control consoles or machine-mounted enclosures where space and thermal dissipation are limited.
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Low-Latency Data Refresh: The 320 x 240 resolution paired with 64MB of memory ensures rapid screen transitions and real-time updates of critical process variables, preventing display lag during fast-cycle operations.
FAQs
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Does the 2711P-K4M20D support USB peripherals?
Yes. The terminal includes two USB host ports. These ports support the connection of keyboards, mice, or external flash drives for easy data logging and project transfers.
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How do I replace a failed unit without losing my application?
You can transfer the existing .MER runtime file via the RS-232 port or a compatible memory card. Since this unit is Brand New, it arrives with a factory-clean OS, ready for your specific application load.
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What is the primary benefit of the keypad over a touchscreen for this model?
The navigation keys provide an actuating lifespan of 1 million presses and require a 340g operating force. This mechanical feedback prevents accidental triggers and provides a more durable interface for high-vibration machinery.
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Can I use this model on an AC power circuit?
No. This unit requires a DC input between 18V and 30V. Connecting this terminal to an AC power source will cause immediate hardware damage.
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
Hub vs Switch vs Router in Industrial Automation Architecture
Modern factory automation relies on reliable industrial networking infrastructure to exchange real-time field data across operational technology systems. Engineers often encounter networking hardware like hubs, switches, and routers when integrating Programmable Logic Controllers, Distributed Control Systems, and SCADA monitoring nodes. Although these devices share physical ports, they operate at different layers of the Open Systems Interconnection reference model and deliver distinct traffic management capabilities.
Marshalling Cabinet Preventive Maintenance: Essential Healthiness Checks for PLC, DCS, and ESD Systems
Marshalling cabinets serve as the vital interface between field instrumentation and control room electronics in modern process facilities. Regular preventive maintenance of these cabinets ensures signal integrity across programmable logic controllers (PLCs), distributed control systems (DCS), and emergency shutdown (ESD) networks. System technicians must execute structured inspection protocols to mitigate environmental risks, identify loose wiring, and maintain continuous operational readiness.
Spatial Computing in Industrial Automation: Elevating PLC and DCS Operations with AR and VR
Industry 4.0 integrates digital intelligence into field operations, transforming factory automation landscapes worldwide. Spatial technologies—specifically Augmented Reality (AR) and Virtual Reality (VR)—redefine how engineers interact with industrial control systems. By bridging computer-generated CAD models with real-time operational technology (OT) data, immersive displays enable intuitive monitoring, rapid diagnostics, and safer maintenance across complex processing facilities.