4B1270.00-390 Compact HMI Module

The 4B1270.00-390 is a compact human-machine interface module from B&R PANELWARE P127 series, integrating display, key operation and CAN communication functions in an all-in-one industrial housing. Designed for on-site operation and data monitoring in automated systems, it features compact structure, easy embedded installation and outstanding environmental adaptability. Built with industrial-grade electronic components and robust mechanical structure, this module can operate stably under harsh workshop conditions such as dust, humidity and mechanical vibration. It serves as a localized operation terminal for small and medium-sized automation equipment, enabling operators to view real-time process data, equipment status and alarm information, as well as execute parameter setting, mode switching and equipment control commands on site. With standardized CAN bus communication, it can be seamlessly connected to B&R PLCs and controllers, and widely applied in modular industrial automation solutions as a reliable on-site HMI unit.

The official model is 4B1270.00-390, an original genuine product of B&R Industrial Automation, manufactured in compliance with global industrial quality standards and international electronic specifications. It belongs to the compact MMI category of the PANELWARE product line. The module is equipped with a 4×20 character monochrome LCD display with blue backlight, delivering clear viewing effect in both bright and dim working environments. A total of 20 function keys are configured on the front panel, among which part of the keys support LED illumination for easy operation in low-light conditions. It adopts an electrically isolated CAN communication interface via a 9-pin D-type connector, supporting reliable data interaction with upper control units. The front panel reaches IP65 protection grade, effectively preventing dust and splashing water from entering the interior. The rated power supply is 24 VDC, with typical power consumption of 2.2 W and maximum power consumption of 2.5 W, and the allowable voltage range is 18 VDC to 30 VDC. All units undergo strict display test, key durability test, communication test and environmental simulation test before delivery to ensure consistent quality and stable performance. The product has passed CE and cULus certifications, complying with EU safety and electromagnetic compatibility regulations as well as North American industrial standards.

The core functions of the 4B1270.00-390 cover on-site data display, manual operation and network communication. The built-in LCD display can continuously present equipment operating parameters, production process data, system prompts and fault alarm information, helping operators master the running status of the production line in real time. The 20 integrated function keys support one-key control for start/stop, parameter modification, program selection and working mode switching, meeting daily equipment operation, debugging and maintenance requirements. The standard CAN bus interface realizes high-speed and stable data transmission between the module and the main controller, supporting real-time upload of on-site operation instructions and download of equipment status data. Users can set communication baud rate and node address through the dial switches on the rear side, which simplifies on-site configuration work.

In the industrial control system architecture, this module is positioned as a decentralized on-site operation and monitoring terminal. It can work independently with a single controller for small standalone equipment, or be deployed in groups in large distributed multi-station control systems. The compact design supports flexible layout and embedded installation in control cabinets or operation consoles. The modular structure allows quick replacement during maintenance without interrupting the operation of the whole system. As a key part of B&R’s integrated automation solution, it complements the functions of central control units, simplifies on-site operation procedures, reduces misoperation risks, and improves the overall operation efficiency and management convenience of automation equipment.

The display unit adopts a 4×20 character monochrome LCD with blue backlight, featuring stable display performance, no flicker or blur during long-term continuous operation, and adjustable display contrast via keys. The membrane keys adopt industrial-grade switch elements, with a mechanical service life of more than one million presses, ensuring sensitive response and stable hand feeling for long-term use. The front panel has IP65 protection performance, resisting dust, water splash and common industrial pollutants. In terms of electrical performance, the module uses 24 VDC industrial power supply with low power consumption and strong voltage fluctuation resistance. The CAN communication interface is electrically isolated, which effectively suppresses electromagnetic interference and guarantees the integrity and stability of data transmission.

The operating temperature range is 0°C to +50°C, and the storage temperature range is -20°C to +60°C, adapting to temperature changes in conventional industrial workshops. It can work normally under relative humidity of 10% to 90% non-condensing conditions, with excellent moisture and mildew resistance. The whole machine has good vibration and shock resistance, and can maintain structural stability and normal working state under the mechanical vibration generated by operating equipment. The overall dimension is compact, with reasonable depth design to adapt to various embedded installation scenarios. The internal circuit is optimized with anti-interference design, which can cope with complex electromagnetic environments on industrial sites.

The 4B1270.00-390 is fully compatible with B&R series PLCs, bus modules and motion control units, and can be directly connected via standard CAN bus cables. For embedded installation, standard mounting brackets and fixing fasteners are required to secure the module on control cabinets or operation consoles. Customizable legend strips and label accessories can be matched to mark key functions and key areas, facilitating operator identification and daily use. When multiple modules are used in a multi-station networking system, dedicated CAN extension cables and distribution terminals are recommended to realize unified network layout and data interaction.

For on-site wiring management, supporting accessories such as cable clips, cable grooves and marking labels can be equipped to organize circuits and identify line numbers, which is convenient for daily inspection and fault troubleshooting. In environments with strong electromagnetic interference, external shielding components and grounding accessories can be configured to further enhance communication stability. All matching accessories follow B&R unified technical specifications, featuring high compatibility, easy selection and quick assembly. In addition, dedicated configuration software is required for parameter setting and communication address configuration of the module, which can be used with standard industrial computers.

This compact HMI module is mainly applied in automation control systems built on B&R platforms, covering multiple industrial fields including general machinery manufacturing, automated assembly lines, packaging machinery, textile machinery, food and beverage processing equipment, printing and papermaking machinery, material handling equipment and intelligent testing equipment. It is suitable for both small single-device independent control systems and large distributed multi-station control systems. The module can be installed inside standard control cabinets or on-site operation stations, adapting to indoor workshop environments with dust, slight vibration and conventional humidity.

It meets the operation and monitoring demands of new automation projects, and can also be used for interface upgrading, function expansion and accessory replacement of old production lines. Whether for continuous mass production equipment or intermittent processing machinery, it can provide stable human-machine interaction support. With its compact size, complete functions, low power consumption and high cost performance, the 4B1270.00-390 has become a preferred on-site operation terminal for medium and small-scale automated equipment, and is widely recognized and applied in various industrial automation scenarios.

The 4B1270.00-390 is an original product of B&R Industrial Automation. All production processes including component screening, circuit welding, assembly and finished product testing are implemented in strict accordance with international industrial standards and the company’s strict internal quality control system. Each batch of products undergoes sampling inspection on display effect, key performance, communication accuracy and environmental adaptability before leaving the factory to ensure all technical indicators meet design requirements. The product has obtained CE certification and cULus certification, complying with EU electrical safety, electromagnetic compatibility regulations and North American industrial equipment standards.

Adopting high-quality industrial raw materials and mature manufacturing technology, the module features low failure rate, strong anti-aging, anti-wear and anti-corrosion capabilities, and long service life. B&R provides a complete global after-sales service system, offering users professional technical consultation, installation guidance, debugging support, parameter configuration assistance and long-term fault handling services. As a mature HMI product that has been widely verified in industrial sites around the world, the 4B1270.00-390 delivers stable and reliable overall performance, and is a trustworthy choice for on-site operation and monitoring of B&R automation equipment.