The SM100-HHE Series HART Intelligent Transmitter is a product developed using ARM microprocessors, dedicated HART protocol modulation and demodulation chips, combined with extensive practical experience. Designed in accordance with industrial product requirements, it features high reliability and stability. The intelligent transmitter is equipped with a standard RS485 interface, enabling transparent data transmission with HART protocol-enabled intelligent instruments or converting data to MODBUS_RTU protocol for reading, ensuring real-time data transmission.
The HART protocol adopts the Bell202 Frequency Shift Keying (FSK) standard, superimposing modulated digital signals on the 4-20mA analog signal. This allows HART protocol instruments to support two-way data communication without interfering with the 4-20mA analog signal. The SM100 Series Intelligent Transmitter is an intelligent device that performs two-way modulation and demodulation between digital and analog signals.