Building Control HMI
To help us effectively control equipment as well as make decisions based on machine feedback, we use a Human Machine Interface (HMI) which can be a simple display directly assembled on a machine for factory automation or multi-touch display panels for controlling an entire production line. We provide a range of DC-DC switching and linear voltage regulators, high-performance STM32 microcontrollers and wired – including transceivers for different fieldbuses and RS232, RS485 and CAN – and wireless – including Bluetooth, Sub1GHz, LoRa – solutions together with protection devices and EEPROM to help build robust HMI solutions.
An engineers' guide to watchdog supervisors and wired communication interfaces in building control HMIs
Building control systems are found in many commercial and industrial facilities. They may be dedicated to a specific item of machinery, such as a heating, ventilation, and air conditioning plant, or have a broader function to control everything from operating the lighting in communal areas to managing tenant and visitor access to offices and shared spaces. Whatever type of equipment they may control, safety and reliability of operation are key factors that shape the design of such systems
This article investigates some of the causes of unpredictable system behaviour and highlights components that can prevent it from happening.
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