Description
1. Product Overview
Allen‑Bradley 2711‑K3A10L1 is the classic PanelView 300 Micro micro‑size Human‑Machine Interface (HMI) from Rockwell Automation. As an ultra‑compact keypad‑only operation terminal within the 2711 series, it is custom‑developed for small‑scale automation equipment, standalone production‑line units, auxiliary power units and distributed local control stations. Adopting a pure physical‑keypad operation architecture and equipped with a 3‑inch industrial monochrome transflective LCD display with long‑life LED backlight, it features miniaturization, low power consumption, high adaptability and maintenance‑free local monitoring and manual operation. It serves as a dedicated human‑machine interaction device for harsh operating conditions characterized by limited installation space, dust, oil contamination and continuous vibration.
The 2711‑K3A10L1 is natively fitted with dual communication interfaces including DeviceNet industrial field‑bus and RS‑232 serial port. It delivers deep compatibility with the full range of supporting Rockwell‑Automation PLC and distributed industrial‑control equipment, featuring outstanding bus networking capability, stable data transmission and excellent anti‑interference performance. Multi‑device parallel bus networking, high‑speed data exchange and real‑time status linkage can be realized without additional protocol‑conversion modules. Built with a compact metal‑reinforced structure and a front high‑protection dust‑proof & moisture‑proof panel, it supports standard flush‑mount installation as well as wall‑mount adaptation and stably accommodates 7×24‑hour non‑stop operation of industrial equipment. Benefiting from its ultra‑small footprint, streamlined hardware, extremely low failure rate, long‑term stable performance and convenient bus networking, it is widely adopted for matching small‑size automation equipment, in‑situ replacement of legacy micro terminals and technical‑retrofit upgrade of distributed local‑monitoring systems. It represents a classic micro‑size HMI model with great versatility and high reliability for space‑constrained industrial‑control scenarios.
2. Functional Features
3‑inch Micro‑size Industrial Monochrome Display for All‑weather Readability in Confined Spaces
Equipped with a 3‑inch industrial‑grade transflective monochrome LCD display at a physical resolution of 128×64 pixels and an industrial long‑life LED backlight system with service life exceeding 100 000 hours, it provides neat images, sharp characters and accurate readings. Leveraging transflective display technology, it performs well under direct strong workshop light as well as dim‑light conditions. It avoids cold‑start black screen and high‑temperature screen distortion, and suffers no brightness degradation or image ghosting & stuttering after prolonged runtime. It reliably presents equipment operating parameters, process status, fault codes, alarm prompts and operating conditions round‑the‑clock, perfectly fitting industrial environments with compact cabinets, complex lighting and drastic temperature swings.
Pure Industrial Keypad‑based Architecture for Durable, Low‑maintenance Performance under Heavy‑duty Conditions
It adopts an integrated industrial stainless‑steel membrane keypad layout with dedicated function keys and navigation keys. The keys offer consistent actuation feel, ultra‑long mechanical service life, anti‑mis‑operation, oil resistance, wear resistance and corrosion resistance. The pure‑keypad design completely eliminates typical drawbacks of touch screens such as easy breakage, moisture‑caused malfunction, vibration‑induced drift and oil‑related false triggering. It is suitable for high‑intensity industrial sites with frequent equipment start‑stop cycles, continuous vibration, heavy dust and oil contamination. No calibration, regular dust removal or sensitivity adjustment is required in daily service, and its overall service life far exceeds that of micro touch‑screen terminals of equivalent dimensions.
Dual‑link Communication of DeviceNet + RS‑232 for Full‑coverage Compatibility with Distributed Industrial‑control Systems
On‑board dedicated DeviceNet industrial‑bus interface and RS‑232 serial communication interface support independent networking with complementary functions, natively compatible with Rockwell‑Automation DeviceNet‑bus industrial‑control architecture and traditional PLC control systems. DeviceNet bus enables multi‑device parallel networking, long‑distance stable transmission, faulty‑node isolation and superior electromagnetic‑interference immunity for distributed production lines and multi‑unit coordinated‑control applications. The RS‑232 serial port supports configuration‑program upload & download, equipment parameter commissioning, external printer connection and point‑to‑point upper‑device connection. It meets dual requirements of bus‑networked monitoring and standalone equipment operation‑maintenance commissioning, featuring plug‑and‑play convenience, easy networking and excellent compatibility.
Full‑function Micro‑scale Local Human‑machine Interaction to Streamline Operation‑maintenance Workflow for Small‑size Equipment
Complete human‑machine interaction functions are tailored for small automation equipment and distributed‑control scenarios. It acquires, refreshes and displays core equipment operating parameters, unit start‑stop status, process progress, fault‑alarm codes and abnormal‑condition information in real time. Meanwhile it supports local operations including process‑parameter modification, manual equipment start‑stop, operation‑mode switching, fault acknowledgement & reset and status query. Field technicians can conduct daily operation, rapid troubleshooting and precise parameter commissioning on‑site without relying on host computers, greatly simplifying management workflows for small‑size equipment and improving on‑site maintenance efficiency and fault‑handling speed.
Industrial‑grade Reinforced Protection for Long‑term Continuous Stable Operation under Wide‑temperature Conditions
The unit features a compact high‑strength metal‑reinforced main body. Its front‑panel delivers high‑standard industrial‑level protection against dust, moisture, oil contamination and aging. It withstands dust accumulation inside compact cabinets, slight moisture condensation, oil stains, continuous equipment vibration and start‑stop shocks. Having passed strict industrial tests including high‑low‑temperature cycling, vibration‑shock and EMC, it achieves outstanding performance of electromagnetic‑interference immunity, vibration resistance and temperature‑humidity fluctuation tolerance. It supports year‑round 7×24‑hour non‑stop production with zero on‑site failure, no data drift, no screen stuttering and no communication dropout.
Ultra‑compact Standardized Design for Non‑destructive Replacement and Upgrade in Confined Spaces
Designed to industrial miniaturized standards, the unit occupies minimal installation space. Cut‑out dimensions, mounting method and hardware‑interface definitions are fully aligned with other micro‑size HMI terminals of the same series. Communication protocols, configuration logic and power‑supply specifications are universally compatible. It can directly replace legacy terminals suffering from screen failure, keypad malfunction, communication anomaly or data disorder. Cabinet modification, reprogramming & re‑configuration and networking‑parameter re‑commissioning are not required. Equipment repair and system upgrade can be completed within short downtime, delivering low retrofitting cost, high efficiency and prominent cost‑effectiveness for space‑limited installation environments.
3. Technical Parameters
Basic Specifications
Product Model: 2711‑K3A10L1；Brand & Manufacturer: Allen‑Bradley (Rockwell Automation)；Product Series: PanelView 300 Micro 2711‑Series Micro Industrial HMI Terminal；Product Type: Micro‑size Pure‑keypad Industrial HMI Operation Terminal；Core Positioning: Local monitoring, parameter commissioning, fault indication and human‑machine interaction unit for small‑size automation equipment and distributed control stations；Core Features: 3‑inch micro‑size monochrome display, pure industrial keypad operation, DeviceNet / RS‑232 dual‑communication, wide‑range DC power supply, ultra‑compact form factor, low‑power operation, non‑destructive replacement for confined‑space applications.
Display and Memory Parameters
Display Screen: 3‑inch industrial transflective monochrome LCD；Backlight: Long‑life industrial LED backlight, service life ≥100 000 hours, clear visibility under all‑weather light conditions；Resolution: 128 × 64 pixels；Program Storage: 240 KB non‑volatile storage；Application Memory: 170 KB；Storage Feature: Automatic data retention upon power loss; no battery required for configuration‑data backup；Operation Method: Industrial stainless‑steel membrane function keys + navigation keys；Operation Characteristics: Oil‑resistant, wear‑resistant, anti‑mis‑operation, ultra‑long mechanical actuation service life；Display Functions: Real‑time screen refresh, synchronous parameter update, fault pop‑up alert, real‑time equipment‑status linkage, simplified process‑data presentation.
Communication Parameters
Communication Interfaces: DeviceNet industrial‑bus interface, RS‑232 serial communication interface (printer‑capable)；Networking Protocols: Natively compatible with AB DeviceNet‑bus protocol and legacy PLC communication protocols；Networking Modes: Multi‑device parallel DeviceNet‑bus networking, RS‑232 point‑to‑point serial connection；Transmission Characteristics: Low latency, high stability, strong electromagnetic‑interference immunity, high bus fault tolerance, precise data synchronization；Compatible Systems: Rockwell‑Automation DeviceNet‑bus industrial‑control systems, supporting automation equipment of legacy 2711 series, complete small‑scale PLC control systems；Supported Functions: Configuration‑program read‑write, online process‑parameter modification, real‑time equipment‑status monitoring, fault‑information upload, on‑site equipment commissioning, external print output.
Electrical Operating Parameters
Power‑supply Voltage: 18～32 V DC industrial wide‑range DC supply (nominal 24 V DC)；Maximum Power Consumption: 15 W；Operation Mode: 7×24‑hour year‑round non‑stop continuous operation；Anti‑interference Grade: Industrial Class‑A EMC, resistant to high‑frequency workshop electromagnetic crosstalk, variable‑frequency‑device interference and motor start‑stop impact interference；Operating Characteristics: Free of screen flicker, data garbling, communication dropout, keypad malfunction and parameter drift; low power consumption and low heat generation.
Environmental and Mechanical Parameters
Operating Temperature: 0℃～+55℃；Storage Temperature: ‑25℃～+85℃；Operating Humidity: 5%～95% non‑condensing；Panel Protection: Industrial‑grade dust‑proof, moisture‑proof and oil‑proof protection；Housing Material: High‑strength industrial metal‑reinforced enclosure；Overall Dimensions: 150 mm × 150 mm × 60 mm；Shock‑vibration Resistance: Tolerant of equipment start‑stop impact, cabinet continuous vibration and mechanical vibration of small‑size equipment；Installation Mode: Standard flush‑mount installation, suitable for compact cabinet scenarios；Applicable Conditions: Continuous‑production scenarios of small‑size automation equipment, standalone production‑line units, auxiliary power equipment and distributed local control stations.
4. Hardware Configuration and Structural Advantages
Micro‑size Pure‑keypad Architecture Suited for Confined and Harsh Conditions
Built around ultra‑compact pure‑physical‑keypad industrial design and free of touch‑screen vulnerability, it is purpose‑built for small‑size automation scenarios with limited installation space and severe conditions. Stainless‑steel membrane keys are wear‑resistant, corrosion‑resistant, dust‑proof, water‑proof and anti‑aging. They maintain smooth response without sticking, malfunction or false triggering under long‑term high‑frequency operation, and outperform micro touch‑screen terminals of equivalent size in mechanical durability. It perfectly fits high‑vibration, oil‑polluted and dusty intensive industrial environments inside compact cabinets.
DeviceNet‑bus‑oriented Communication with Powerful Distributed‑networking Capacity
Equipped with Rockwell‑Automation proprietary DeviceNet industrial bus deeply adapted to multi‑unit coordinated distributed industrial‑control scenarios, it supports multi‑terminal parallel bus‑networking, faulty‑node isolation and stable data exchange, delivering strong transmission anti‑interference performance and high networking fault tolerance without generic‑protocol compatibility defects. Complemented by RS‑232 serial port for dual‑link redundancy, it satisfies centralized bus‑networked monitoring in workshops as well as standalone equipment commissioning, parameter read‑write and external‑printer connection. No extra conversion modules are needed for flexible networking and full‑scope scenario coverage.
Long‑life LED‑backlit Monochrome Display with No Performance Degradation over Years of Operation
The industrial‑grade transflective LCD screen paired with 100 000‑hour‑class LED backlight is designed for industrial 7×24‑hour continuous‑production conditions. It maintains stable backlight brightness and moderate image contrast, unaffected by strong / dim workshop lighting or high‑low‑temperature fluctuations. No screen yellowing, brightness reduction, image ghosting, stuttering or display defects occur after long‑time runtime. Long service life of screen and backlight modules reduces later‑stage maintenance costs and equipment‑replacement frequency for small‑size equipment.
Compact Metal‑reinforced Housing for Small Form Factor and High Stability
Constructed from high‑strength integrated metal‑reinforced enclosure, the unit features small footprint while offering pressure resistance, impact resistance, deformation resistance and corrosion resistance. Compared with plastic‑housing terminals of the same class, it achieves prominent improvements in shock resistance, dust‑proofing, moisture‑proofing, anti‑aging and electromagnetic‑interference immunity. It endures complex harsh industrial‑site conditions with very low hardware failure rate and guarantees continuous stable production of small‑size equipment.
Wide‑range‑DC Low‑power Design for Long‑term Maintenance‑free Operation
Optimized industrial DC‑circuit architecture supports 18‑32 V wide‑range DC power supply matching mainstream 24 V DC field power. Low power consumption and low heat generation are achieved with few high‑frequency vulnerable electronic components. Periodic work such as screen calibration, keypad inspection and parameter reset is unnecessary. Stable 7×24‑hour continuous operation drastically cuts maintenance workload and failure‑caused downtime for small‑size equipment.
Standardized Universal Design Enabling Non‑destructive Replacement in Confined Spaces
It fully complies with original‑factory general technical standards of PanelView 300 Micro series. Mounting cut‑out dimensions, interface definitions, communication protocols, configuration logic and power‑supply specifications are fully interchangeable. It can directly replace defective legacy micro‑size HMI terminals suffering from malfunction, communication anomaly or display failure. No cabinet modification, program revision or networking re‑commissioning is required. Equipment repair can be completed within short downtime, making it a cost‑effective choice for technical retrofits in space‑constrained installations.
5. Application Scenarios
- Small‑size Standalone Automation Equipment: Widely deployed on small packaging machinery, auxiliary conveying equipment, standalone rubber‑plastic machinery, compact printing machines and non‑standard automation standalone units as local micro‑operation terminals. It performs fundamental human‑machine interaction tasks including equipment start‑stop control, simple parameter adjustment, process‑status monitoring and fault‑code viewing & reset.
DeviceNet‑bus Distributed Industrial‑control Systems: Precisely matches Rockwell‑Automation DeviceNet‑bus networking systems and small‑scale PLC control systems as distributed local visualization operation units. It monitors simple process parameters such as equipment temperature, pressure, speed and flow in real‑time and realizes local single‑unit control, filling the gap of local‑operation visualization within distributed systems.
Auxiliary Power and Water‑treatment Equipment: Suitable for working conditions of power‑plant auxiliary facilities, compact water‑treatment units, fan‑and‑pump power equipment and heat‑exchange auxiliary units. Tolerant of dust, slight oil contamination and continuous vibration, it is used for operating‑status monitoring, fine parameter adjustment and local fault reset to guarantee stable operation‑maintenance of auxiliary power equipment.
- Technical‑retrofit and Maintenance of Legacy Micro‑size Industrial‑control Terminals: Realizes in‑situ non‑destructive replacement and upgrade for legacy 2711‑series micro‑size HMI terminals with screen damage, keypad failure, bus‑communication abnormality, data garbling or equipment offline. It rapidly restores complete human‑machine‑interaction functions without overall system reconstruction and significantly lowers retrofitting and maintenance costs of small‑size equipment.
