{"id":226862,"date":"2013-04-16T22:00:00","date_gmt":"2013-04-16T22:00:00","guid":{"rendered":"https:\/\/eenewseurope.artwhere.co\/solution-de-gestion-de-boucles-4-a-20-ma-conformes-au-protocole-hart\/"},"modified":"2013-04-16T22:00:00","modified_gmt":"2013-04-16T22:00:00","slug":"solution-de-gestion-de-boucles-4-a-20-ma-conformes-au-protocole-hart","status":"publish","type":"post","link":"https:\/\/www.ecinews.fr\/fr\/solution-de-gestion-de-boucles-4-a-20-ma-conformes-au-protocole-hart\/","title":{"rendered":"Solution de gestion de boucles 4 \u00e0 20 mA conformes au protocole HART"},"content":{"rendered":"<p>Ce circuit dont la conformit&eacute; a &eacute;t&eacute; test&eacute;e et v&eacute;rifi&eacute;e, est enregistr&eacute; en tant que solution HART agr&eacute;&eacute;e par la fondation HART Communication. Cette homologation garantit que les syst&egrave;mes con&ccedil;us avec ces composants r&eacute;pondent aux exigences du protocole HART et que le circuit de d&eacute;monstration DEMO-AD5700D2Z est une solution test&eacute;e et &eacute;prouv&eacute;e. Combinant les composants les plus sobres de leur cat&eacute;gorie, cette solution permet aux ing&eacute;nieurs de prendre en charge des communications syst&egrave;me accrues, parmi lesquelles la transmission d&rsquo;informations de diagnostics et de donn&eacute;es de mesure ou d&rsquo;&eacute;talonnage suppl&eacute;mentaires. Mesurant 7 x 2,3 cm, ce circuit imprim&eacute; associe une interface directe avec un capteur, un microprocesseur et une liaison de communications HART bidirectionnelle aliment&eacute;e sur une boucle 4-20 mA.<br \/>\nLa carte combine trois composants haute performance propri&eacute;taires &agrave; faible consommation d&rsquo;&eacute;nergie et optimis&eacute;s pour les solutions d&rsquo;instrumentation de terrain. L&rsquo;ADuCM360 est un syst&egrave;me sur puce d&rsquo;acquisition de donn&eacute;es 24 bits &agrave; 3,9 kEch\/s et enti&egrave;rement int&eacute;gr&eacute; qui incorpore des convertisseurs analogique\/num&eacute;rique sigma-delta double voie, un microcontr&ocirc;leur ARM Cortex M3 32 bits et une m&eacute;moire flash\/EE. Consommant moins de 1 mA en fonctionnement, ce syst&egrave;me sur puce d&eacute;livre une puissance de traitement par watt sup&eacute;rieure &agrave; tous les microcontr&ocirc;leurs analogiques de sa cat&eacute;gorie. L&rsquo;AD5421 est un convertisseur num&eacute;rique\/analogique 16 bits complet aliment&eacute; par boucle 4 mA-20 mA, qui int&egrave;gre un r&eacute;gulateur de tension programmable charg&eacute; d&rsquo;alimenter la carte de d&eacute;monstration. Sa consommation en courant de repos est inf&eacute;rieure &agrave; 300 &micro;A, et son encombrement est tr&egrave;s r&eacute;duit.<br \/>\nEnfin, l&rsquo;AD5700 est un modem HART complet &eacute;galement tr&egrave;s &eacute;conome en &eacute;nergie et en espace occup&eacute; sur le circuit imprim&eacute;.<\/p>\n<\/p>\n<p><a href=\"http:\/\/www.analog.com\/CN0267\">www.analog.com\/CN0267<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Analog Devices annonce sous la r\u00e9f\u00e9rence CN0267 un circuit de d\u00e9monstration pour \u00e9metteurs intelligents conformes au protocole HART et aliment\u00e9s par boucle de courant, \u00e0 l\u2019attention des applications industrielles dont le budget \u00e9nerg\u00e9tique est de 3,5 mA maximum. Ce circuit d\u2019instrumentation de terrain pr\u00e9sente une solution de cha\u00eene de signal compl\u00e8te basse consommation et haute pr\u00e9cision occupant une surface minimale et qui \u00e9t\u00e9 test\u00e9e et v\u00e9rifi\u00e9e dans le cadre de l\u2019initiative Circuits from the Lab propri\u00e9taire.<\/p>\n","protected":false},"author":22,"featured_media":226863,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[881],"tags":[],"domains":[47],"ppma_author":[1149],"class_list":["post-226862","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nouveaux-produits","domains-electronique-eci"],"acf":[],"yoast_head":"<title>Solution de gestion de boucles 4 \u00e0 20 mA conformes au protocol...<\/title>\n<meta name=\"description\" content=\"Analog Devices annonce sous la r\u00e9f\u00e9rence CN0267 un circuit de d\u00e9monstration pour \u00e9metteurs intelligents conformes au protocole HART et aliment\u00e9s par...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ecinews.fr\/fr\/wp-json\/wp\/v2\/posts\/226862\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Solution de gestion de boucles 4 \u00e0 20 mA conformes au protocole HART\" \/>\n<meta property=\"og:description\" content=\"Analog Devices annonce sous la r\u00e9f\u00e9rence CN0267 un circuit de d\u00e9monstration pour \u00e9metteurs intelligents conformes au protocole HART et aliment\u00e9s par boucle de courant, \u00e0 l\u2019attention des applications industrielles dont le budget \u00e9nerg\u00e9tique est de 3,5 mA maximum. 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