2006-08-07 00:30:14 · 4 answers · asked by Bazza66 3 in Science & Mathematics ➔ Engineering
The HART Communications Protocol (Highway Addressable Remote Transducer Protocol) is an early Fieldbus or Industrial Automation protocol. Its claim to fame is the fact that it can communicate over legacy 4-20mA instrumentation wiring, in effect sharing the pair of wires involved with older analog systems. According to some, due to the huge installed base of 4-20mA systems throughout the world, the HART Protocol is one of the most popular industrial protocols today.
The protocol was developed by Rosemount Inc. in the mid-1980s as proprietary digital communication protocol for their smart field instruments. Soon it evolved into HART. In 1986, it was made an open protocol. Since then, the capabilities of the protocol have been enhanced by successive revisions to the specification.
There are two main operational modes of HART instruments.
2006-08-07 02:18:31 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Bottom line, it means you have to buy an expensive communicator (HART Communicator) in order to employ a family of "smart" instruments typically supplied by, but not limited to, Rosemount. With the HART Communicator (Model 275 or higher! ) you will be able to program and document the span and calibration settings of the instrumentation. It also gives you the capability of going on line with the instrument and seeing the input(s) and output(s).
2006-08-07 05:51:03 · answer #2 · answered by BRUZER 4 · 0⤊ 0⤋
Define Hart
2016-11-12 09:03:27 · answer #3 · answered by ? 4 · 0⤊ 0⤋
hart full or heartful life. It is up to you to decide. Of course it is a matter of life with optimistic views
2016-03-16 23:42:30 · answer #4 · answered by Yesennia 4 · 0⤊ 0⤋