hart protocol
-
Hot
HART Communication Controller
HT1200M HART Communication Controller 1. Integrated receiving the circuit of band-pass filter and transmitting signal waveform shaping 2. Single chip, FSK modem (Semi-duplex 1200bit/s) 3. External 460.8kHz crystal or ceramic filter 4. Working temperature: -40℃~85℃ 5. Power supply voltage: 3.3V~5.0V 6. Working current: ＜ 140uA (3.3V） 7. LQFP32 and QFN32 package
Email Details
-
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.
-
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.
