Product Description
The Allen-Bradley 2711PC-B4C20D8-LR PanelView Plus Compact Terminal is a user-friendly HMI device featuring a low-reflective 3.5-inch color touchscreen (320x240 resolution) and a membrane keypad for machine control and parameter setting. It offers 256MB of volatile memory and 512MB of user storage, operates on 18-30V DC (consuming 35W), functions between 0-55C with 5-95% non-condensing humidity, and includes a long-lasting CCFT backlight and a battery-backed clock.
Is Your Device Showing These Signs?
The Allen Bradley 2711PC-B4C20D8-LR HMI commonly experiences failures related to the backlight inverter, resulting in a dim or non-functional display. The touchscreen overlay degrades over time, causing inaccurate or unresponsive touch inputs, requiring replacement. Communication issues arise from a faulty RS-232 port or corrupted firmware, necessitating port repair or firmware reflashing. Power supply failures are frequent, stemming from capacitor degradation, which leads to intermittent operation or complete shutdown. Logic board component failures, such as memory or processor issues, cause operational errors and require component-level repair.
Technical specifications
Allen-Bradley Operator Interface Terminal 2711PC-B4C20D8-LR provides Human Machine Interface for machine control and monitoring, featuring a poly-domed membrane keypad with 8 function keys, numerical and navigational keys, and an analog resistive touchscreen for user input. The display is a 3.5-inch Active Matrix LCD with a resolution of 320 x 240 pixels, utilizing analog resistive touchscreen technology rated for 1 million presses with an operational force of 340G. Backlighting is provided by a CCFT with a maximum life of 50,000 hours, offering a display brightness of 200 cd/m2 Nits. It includes a battery-supported internal clock with an accuracy of 2 minutes per month, 256 MB of volatile RAM for application processes, and 512 MB of non-volatile user memory for long-term storage. The terminal operates on an input voltage range of 18-30V DC, consuming 35W with a current draw of 1.0A @ 24V DC, within an operating temperature range of 0-55 C (32-131 F) and relative humidity of 5-95% non-condensing, and is low-reflective.
Our Repair Process for the
2711PC-B4C20D8-LR
Our repair process for the Allen Bradley 2711PC-B4C20D8-LR HMI begins with a comprehensive diagnostic evaluation to identify all failures. Backlight inverter failures are addressed through direct replacement with a new, tested inverter. Degraded touchscreen overlays are removed and replaced with a calibrated, high-quality overlay. Faulty RS-232 ports undergo repair or replacement, and corrupted firmware is reflashed to the latest stable version. Power supply failures are resolved by replacing degraded capacitors and other faulty components. Logic board component failures necessitate component-level repair, including memory and processor replacement as needed, followed by rigorous testing to ensure full operational functionality.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.

Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.

















