What isHART

HART communication protocol is a hybrid analog and digital protocol used in industrial automation to send and receive digital information over analog lines. It is commonly used in process and instrumentation systems, ranging from small to large industrial applications.

What are the advantages of HART protocol?

One of the greatest advantages of HART protocol is its ability to communicate over legacy analog 4-20 mA instrumentation current loops without interfering with the analog signals. This allows for bidirectional communication and enables access to valuable diagnostic information from intelligent devices.

How did HART protocol evolve?

The HART protocol evolved from the serial communication protocols such as RS485 and Event to. It was developed by Emerson in the 1980s to address the limitations of the existing 4-20mA communication protocol, which could only transmit one parameter or measured value.

What are the benefits of using HART protocol in industrial automation?

HART protocol has revolutionized industrial automation by enabling bidirectional communication, which in turn has made it possible to access and utilize valuable diagnostic information from intelligent devices. This has improved the overall efficiency and productivity of industrial processes.

Conclusion

Overall, HART communication protocol is an important aspect of industrial automation that enables bidirectional communication and access to valuable diagnostic information from intelligent devices. Its ability to communicate over legacy analog 4-20mA instrumentation current loops makes it a popular choice in process and instrumentation systems ranging from small automation applications to large sophisticated industrial applications.

FAQ

What is HART protocol used for?

HART protocol is used in industrial automation to send and receive digital information over analog lines, enabling bidirectional communication and access to valuable diagnostic information from intelligent devices.

What are the advantages of using HART protocol?

The advantages of using HART protocol include its ability to communicate over legacy analog 4-20 mA instrumentation current loops without interfering with analog signals, enabling bidirectional communication, and access to valuable diagnostic information from intelligent devices.

Who developed HART protocol?

The HART protocol was developed by Emerson in the 1980s to address the limitations of the existing 4-20mA communication protocol, which could only transmit one parameter or measured value.

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