The Allen-Bradley 2711-K5A8 is a standard operator interface terminal belonging to the PanelView 550 series under Rockwell Automation, specifically designed for industrial automation scenarios to enable equipment monitoring and operation control in human-machine interaction. With its simple and reliable design, this product can meet the basic human-machine interaction needs in various industrial environments. It is capable of data interaction with controllers such as SLC and PLC, fulfilling functions like industrial process command input, status display, and log output. However, this model has been discontinued and can only be obtained as used or refurbished equipment through certain channels. Its features including keyboard operation and multi-interface communication once made it widely applicable in various industrial production lines, equipment control cabinets and other scenarios, providing operators with an intuitive entry for equipment control.

Technical Specifications

The Allen-Bradley 2711-K5A8, a member of Rockwell Automation’s PanelView 550 series, comes with comprehensive technical parameters covering display, operation and storage, power and environment, as well as communication and software aspects, all tailored for industrial automation applications.

Display Parameters

The terminal is equipped with a 5.5-inch monochrome reflective LCD with LED backlight, which supports blue display mode for clear visual feedback in industrial settings. Its display area measures 120×60 millimeters (4.75×2.38 inches) with a resolution of 256×128 pixels, ensuring basic operation and status information can be presented clearly. The LED backlight boasts a long service life of 100,000 hours, fully meeting the demands of long-term continuous operation in industrial scenarios. In terms of touch configuration, it supports 128 touch units arranged in a 16-column × 8-row layout; the touch screen can trigger corresponding functions, and screen icons are precisely aligned with touch units for accurate operation.

Operation and Storage Parameters

For operation input, the terminal is fitted with a keyboard featuring 10 function keys (F1-F10). The keyboard supports disassembly, facilitating module replacement or maintenance during troubleshooting. Some versions also allow the input of complex operation commands via the keyboard’s numeric keys and navigation keys. In terms of storage configuration, it has 170KB of application program running memory and 240KB of non-volatile memory; the non-volatile memory can store application objects, text, bitmaps and other data, ensuring that key data is not lost after a power outage. Additionally, it supports ATA memory card expansion, and inserting a memory card through the dedicated card slot enables additional storage of application programs and files, enhancing data storage flexibility.

Power and Environment Parameters

In terms of power supply specifications, the terminal has an input voltage range of 85-264 volts AC and an input frequency of 47-63 Hz, making it compatible with most industrial power supply environments worldwide. Its shell complies with NEMA 12/13 and 4X (indoor use only) standards, and achieves IP54 and IP65 protection levels, which can effectively resist erosion from dust, oil stains and splashing water in industrial environments, ensuring stable operation in harsh conditions. It is also equipped with a green communication indicator and a red fault indicator, which can intuitively feedback the device’s communication status and operation faults, helping maintenance personnel quickly identify problems.

Communication and Software Parameters

The terminal has built-in Data Highway Plus (DH+) communication port and RS-232 printer port. The DH+ port can realize data interaction with SLC and PLC controllers, support the construction of multi-node topology, and is recommended to be used with Belden 9463 cable; the RS-232 port can connect to an alarm printer for printing operation logs and alarm records, facilitating post-event traceability. It supports Ethernet/IP protocol, with DHCP and BOOTP functions enabled by default, and is equipped with a USB port, which can not only be used for program download, language configuration and startup application modification, but also directly preview design content on the terminal without downloading the application program in advance, improving debugging efficiency. In terms of software adaptation, it needs to be matched with PanelBuilder32 software for program writing, configuration and debugging, and the connection and data transmission between the computer and the terminal can be completed through a USB cable, simplifying the debugging process for engineers.

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