Write An Essay On HART Protocol

Introduction
The HART (Highway Addressable Remote Transducer) is Protocol that is used for sending and receiving digital information through analog wires. This operation is happen between smart devices and control system. This protocol is a bi-directional in communication system which is capable of transmitting data in both directions, but not at the same time. From this property, it can provide access to the data between intelligent field instruments and host systems. The HART is also called MASTER-SLAVE communication protocol where the master device initiate the slave device communication. Moreover, HART protocol is consistent with the existing 4-20mA systems.
The features of the HART Protocol, which are the simplicity and its low cost,

It can be ideally used in control and monitoring applications for a HART point- to-point configuration. Also, it can be used for measuring pressure and flow using HART network 4–20 mA. However, the applications of HART protocol are grouped into some section which are inventory-management applications, cost-saving applications, remote-operation applications and open-architecture applications.
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Introduction
CAN bus is an acronym that stands for Controller Area Network. CAN is a serial bus system which used to communicate between several embedded 8-bit and 16-bit microcontrollers. CAN bus is a form of multiplex wiring design by Robert Bosch Corporation that allows the linking of a number of control systems together normally in a vehicle so they could share information and has been used in automobiles for over 20 years. Can is a very reliable data transmission that satisfies the real-time requirement of many applications .Can is multi drought multi master serial bus that provide communication between controllers ,sensors and actuators. CAN buses available on many low cost micro processers and as a result of that it is