Question

Select the functions of HART Data Link Layer 

a)Collision free and deterministic communication

b)channel hopping and channel blacklisting to increase reliability and security

c)control the timing of transmission to ensure collision free and reliable communication.

d)Channel blacklisting identifies channels consistently​

Answer 1

Answer:

a)collision free And determinist communication

Answer 2

c)control the timing of transmission to ensure collision free and reliable communication is the correct answer.

• The HART Protocol (Highway Addressable Remote Transducer) is the industry standard which is for sending and receiving digital data via the analog lines between smart devices and control systems.
• The HART protocol follows the seven-layer OSI (Open Systems Interconnection) protocol, although it generally utilizes only three layers: application, data link, and physical.
• A master-slave protocol is basically defined by the HART Data Link Layer. To provide collision-free and reliable communication, timing constraints govern when each master may commence a communication transaction with the slave.