HART Communication Tutorial Part 3
HART COMMUNICATION LAYERS The HART protocol follows the seven-layer OSI (Open Systems Interconnection) protocol, although it uses only three layers: application, data link, and physical. The other four are not...
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HART Communication Protocol Overview
HART is a digital signal that rides on a standard 4 mA … 20 mA process control loop. In the field of process automation, the 4 mA … 20 mA...