hart protocol
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HT1200M Hart Modem Typical
The HT1200M is a single-chip, CMOS modem for use in Highway Addressable Remote Transducer (HART) field instruments and masters. The modem and a few external passive components provide all of the functions needed to satisfy HART physical layer requirements including modulation, demodulation, receive filtering, carrier detect and transmit-signal shaping.
HART Communication Chip HART protocol hart communication controller WirelessHART smart wireless gatewayEmail Details
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0502-2024
Performance Features and Design of HT1200M
The HART protocol superimposes audio digital signals on 4~20 mA analog signals. The digital signal amplitude is 0.5 mA and the data rate reaches 1200 b/s. 1200 Hz represents logic "1" and 2200 Hz represents logic "0". Enables two-way digital communication. HART communication has the characteristics of simultaneous point-to-point 4 ~ 20 mA analog and digital communication, multi-station communication methods, and multiple transmissions.The HT1200M is compatible with the SYM20C15 and HT20C15 and with ON OnSemi's A5191HRT and HT2015.
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1004-2024
Analysis of the common faults and solutions of temperature transmitters
Temperature transmitter technology has been very mature, very common in various factories, transmitters are often used in conjunction with a number of instruments, often in the process of supporting the use of some minor failures. The more common faults and solutions are as follows.