Description
Product Name: 2711-B5A9L1 Allen Braley Output module
Product details:
The Allen-Bradley 2711-B5A9L1 is a high-performance operator interface terminal from the PanelView 550 series. This specific model is a “Dual Input” unit, meaning it features both a touchscreen and a functional keypad for industrial monitoring and control.
## Detailed Product Description
The 2711-B5A9L1 is designed for medium-scale automation tasks. It features a 5.5-inch Monochrome Blue LCD display that provides clear visualization of machine status and process variables. As a “B” version (Dual Input), it allows operators to interact with the system using either the 10 programmable function keys or the analog resistive touchscreen.
It utilizes RS-232 (DH-485 protocol) communication, making it ideal for connecting to SLC 500, MicroLogix, or other controllers that support DH-485 via an RS-232 port.
## Technical Specifications
| Feature | Specification |
| Display Type | Monochrome Blue LCD |
| Display Size | 5.5-inch |
| Resolution | 256 x 128 pixels |
| Input Type | Dual: Touchscreen & Keypad (F1-F10) |
| Communication Port | RS-232 (DH-485 protocol) |
| Input Voltage | 24V DC (Standard for “L1” models) |
| Internal Memory | 170 KB Application Runtime |
| Backlight Life | 100,000 hours |
| Enclosure Rating | NEMA 4X, IP65 (Indoor use) |
## Key Advantages
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Redundant Control: The combination of a touchscreen and physical buttons ensures the machine remains operable even if the screen is damaged or if operators are wearing thick industrial gloves.
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Compact Design: The 5.5-inch form factor allows for installation in tight control panels where space is a premium.
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Durability: Built to withstand harsh industrial environments, including vibration, temperature fluctuations, and chemical exposure (when properly mounted).
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Reliable Legacy Support: Excellent for maintaining older systems that rely on the DH-485 protocol without needing a full system overhaul.
## Critical Considerations & Precautions
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Power Supply: This is an “L1” model, which requires 24V DC. Connecting it to 120V AC will result in immediate hardware failure.
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Protocol Matching: Ensure your PLC is configured for DH-485. While the port is RS-232 (9-pin), it is not a standard “DF1” serial port; the protocol must match.
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Backlight Maintenance: While the backlight is long-lived, it is a consumable part. Dimming of the screen usually indicates the backlight needs replacement.
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Programming Software: This unit is programmed using PanelBuilder32 software. It is not compatible with newer FactoryTalk View Studio software.
## Product Applications
The 2711-B5A9L1 is widely used in sectors requiring localized machine control:
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Material Handling: Monitoring conveyor speeds and sorting gates.
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Packaging Machinery: Adjusting timing and viewing error codes on labeling or bagging machines.
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Water Treatment: Controlling pump cycles and monitoring tank levels.
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Food & Beverage: Simple recipe selection and temperature monitoring in processing zones.
Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!
We have the same series of models in stock. If you don’t find the model you need, please contact us and we will provide you with an official quotation！
Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service
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