[{"data":1,"prerenderedAt":83},["ShallowReactive",2],{"glossary-en-hart-protocol":3},{"id":4,"title":5,"body":6,"description":70,"extension":71,"meta":72,"navigation":78,"path":79,"seo":80,"stem":81,"__hash__":82},"en_glossary/en/glossary/hart-protocol.md","What is HART Protocol?",{"type":7,"value":8,"toc":61},"minimark",[9,14,22,27,38,54,58],[10,11,13],"h2",{"id":12},"hart-highway-addressable-remote-transducer","HART (Highway Addressable Remote Transducer)",[15,16,17,21],"p",{},[18,19,20],"strong",{},"HART"," is a hybrid communication protocol widely used in the process industry.",[23,24,26],"h3",{"id":25},"how-it-works","How it Works",[15,28,29,30,37],{},"It superimposes a digital signal on top of the standard ",[18,31,32],{},[33,34,36],"a",{"href":35},"/en/glossary/4-20ma-loop","4-20 mA"," analog current loop.",[39,40,41,48],"ul",{},[42,43,44,47],"li",{},[18,45,46],{},"Analog",": The 4-20 mA signal carries the primary process variable (e.g., Temperature) in real-time.",[42,49,50,53],{},[18,51,52],{},"Digital",": The digital signal (FSK) carries additional data like device status, diagnostics, and configuration parameters without interfering with the analog signal.",[23,55,57],{"id":56},"advantages","Advantages",[15,59,60],{},"It allows technicians to configure \"smart\" instruments remotely using a handheld communicator, while still compatible with legacy analog control systems.",{"title":62,"searchDepth":63,"depth":63,"links":64},"",2,[65],{"id":12,"depth":63,"text":13,"children":66},[67,69],{"id":25,"depth":68,"text":26},3,{"id":56,"depth":68,"text":57},"Highway Addressable Remote Transducer: Mixing analog simplicity with digital intelligence.","md",{"tags":73},[20,74,75,76,77],"Communication","Protocol","4-20mA","Instrumentation",true,"/en/glossary/hart-protocol",{"title":5,"description":70},"en/glossary/hart-protocol","nlOcqAZHfDiMwx-CWXuito2mZtD1faM-gcfQsCijDhU",1778229654886]