{"id":12323,"date":"2023-09-05T03:38:14","date_gmt":"2023-09-04T19:38:14","guid":{"rendered":"https:\/\/www.inhand.com\/?p=12323"},"modified":"2024-08-06T02:16:30","modified_gmt":"2024-08-06T02:16:30","slug":"what-is-modbus","status":"publish","type":"post","link":"https:\/\/www.inhand.com\/fr\/support\/blogs\/what-is-modbus\/","title":{"rendered":"Qu'est-ce que Modbus et comment fonctionne-t-il dans l'industrie ?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"12323\" class=\"elementor elementor-12323\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-302c3ff4 e-flex e-con-boxed e-con e-parent\" data-id=\"302c3ff4\" data-element_type=\"container\" data-settings=\"{&quot;container_type&quot;:&quot;flex&quot;,&quot;content_width&quot;:&quot;boxed&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-6bf0ec05 e-con-full e-flex e-con e-child\" data-id=\"6bf0ec05\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;full&quot;,&quot;container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-15f15aa5 elementor-widget elementor-widget-heading\" data-id=\"15f15aa5\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.17.0 - 01-11-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h1 class=\"elementor-heading-title elementor-size-default\">Qu'est-ce que Modbus et comment fonctionne-t-il dans l'industrie ?<\/h1>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6cffbfdb e-con-full e-flex e-con e-child\" data-id=\"6cffbfdb\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;full&quot;,&quot;container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-61f94e5d elementor-widget elementor-widget-text-editor\" data-id=\"61f94e5d\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.17.0 - 01-11-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><strong>Qu'est-ce qu'un protocole ?<\/strong><\/p><p>Tout d'abord, il faut savoir ce qu'est un protocole. Le protocole est le langage utilis\u00e9 pour les technologies de communication, tout comme le langage de notre conversation quotidienne. Par exemple, nous concluons un accord appel\u00e9 protocole, \u300a1\u300b est \u00e0 gauche, \u300a2\u300b est \u00e0 droite, et je vous donnerai un \u300a1\u300b. Si vous n'apprenez pas ce protocole, vous savez seulement que c'est \u300a1\u300b, et si vous l'avez appris, vous saurez que cela signifie gauche.<\/p><p>Qu'est-ce que le protocole Modbus ?<\/p><p>Apr\u00e8s avoir compris le concept de \u300aprotocole\u300b, voyons ce qu'est le protocole Modbus. Modbus est un protocole de communication s\u00e9rie, et c'est un protocole de bus publi\u00e9 par la soci\u00e9t\u00e9 Modicon (aujourd'hui propri\u00e9t\u00e9 de Schneider Electric) en 1979 pour la communication avec son automate programmable (PLC).<\/p><p>Plusieurs versions du protocole Modbus existent pour le port s\u00e9rie et Ethernet et les plus courantes sont Modbus TCP, Modbus RTU, Modbus ASCII et Modbus Plus.<\/p><p><strong>Protocole Modbus ASCII<\/strong><\/p><p>Le protocole Modbus ASCII est bas\u00e9 sur le protocole Modbus RTU, qui convertit les instructions en caract\u00e8res ASCII pour la transmission. Par exemple, le protocole Modbus RTU doit transmettre \u300a12\u300b, qui ne n\u00e9cessite qu'un octet. Le protocole Modbus ASCII doit convertir \u300a1\u300ben \u300a31\u300bet \u300a2\u300ben \uff0c32\u3009, ce qui n\u00e9cessite deux octets pour la transmission. Par cons\u00e9quent, le protocole Modbus ASCII est inefficace et a un faible taux d'utilisation.<\/p><p><strong>Protocole Modbus Plus<\/strong><\/p><p>Le protocole Modbus Plus, commun\u00e9ment appel\u00e9 MB+, est un r\u00e9seau Fieldbus \u00e0 grande vitesse, un r\u00e9seau typique de bus \u00e0 jeton et un syst\u00e8me de r\u00e9seau local, en particulier pour les applications de contr\u00f4le industriel.<\/p><p><strong>Protocole Modbus TCP<\/strong><\/p><p>Le protocole Modbus TCP est utilis\u00e9 pour g\u00e9rer et contr\u00f4ler les \u00e9quipements d'automatisation. Il couvre l'utilisation des messages Modbus dans les environnements \"Intranet\" et \"Internet\" en utilisant le protocole TCP\/IP. On peut le consid\u00e9rer comme le protocole Modbus RTU fonctionnant sur Ethernet.<\/p><p><strong>Protocole Modbus RTU<\/strong><\/p><p>Le protocole Modbus est un protocole fonctionnant entre les appareils, ou plut\u00f4t nous devrions dire qu'il doit y avoir un protocole Modbus RTU entre les appareils ! Cela est stipul\u00e9 dans le protocole Modbus, et le mode par d\u00e9faut doit \u00eatre le protocole RTU. La structure de la trame se compose g\u00e9n\u00e9ralement d'une adresse, d'un code de fonction, de donn\u00e9es et d'un contr\u00f4le.<\/p><p><strong>Pourquoi le protocole Modbus fait-il fureur ?<\/strong><\/p><p>Jusqu'\u00e0 pr\u00e9sent, on ne voit pas pourquoi le protocole Modbus est si populaire. D\u00e9couvrons-le ensemble.<\/p><p>Modbus est devenu le standard industriel du protocole de communication dans le domaine industriel (De facto), et c'est maintenant un mode de connexion commun (un standard industriel) entre les appareils \u00e9lectroniques industriels. En outre, il existe trois cl\u00e9s principales de son succ\u00e8s :<\/p><ul><li><p>Publication publique et absence de droits d'auteur.<\/p><\/li><li><p>Facile \u00e0 d\u00e9ployer et \u00e0 maintenir.<\/p><\/li><li><p>Il n'y a pas beaucoup de restrictions sur la modification des bits ou des octets locaux.<\/p><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0025283 elementor-widget elementor-widget-image\" data-id=\"0025283\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.17.0 - 01-11-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"171\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/modbus-1-1024x171.png\" class=\"attachment-large size-large wp-image-17505\" alt=\"\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/modbus-1-1024x171.png 1024w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/modbus-1-300x50.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/modbus-1-768x128.png 768w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/modbus-1-18x3.png 18w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/modbus-1.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-bd0467d e-con-full e-flex e-con e-child\" data-id=\"bd0467d\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;full&quot;,&quot;container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dc2f502 elementor-widget elementor-widget-text-editor\" data-id=\"dc2f502\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><strong>D'une mani\u00e8re g\u00e9n\u00e9rale, Modbus est un protocole de contr\u00f4le industriel qui pr\u00e9sente trois caract\u00e9ristiques : libre d'utilisation, facile \u00e0 utiliser et facile \u00e0 modifier, et qui a \u00e9t\u00e9 largement utilis\u00e9.\u00a0<\/strong><\/p><p>En raison de ces caract\u00e9ristiques, le protocole Modbus a r\u00e9sist\u00e9 \u00e0 l'\u00e9preuve du temps et est toujours utilis\u00e9 dans un large \u00e9ventail de domaines, tels que les instruments et les compteurs, les appareils \u00e9lectriques intelligents \u00e0 haute et basse tension, les transmetteurs, les contr\u00f4leurs programmables, les interfaces homme-machine, les convertisseurs de fr\u00e9quence, les \u00e9quipements intelligents de terrain, etc.<\/p><p><strong>Comment le Modbus est-il utilis\u00e9 dans l'industrie ?<\/strong><\/p><p>Voici la nouvelle g\u00e9n\u00e9ration\u00a0<a href=\"https:\/\/inhandgo.com\/products\/ingateway502-industrial-cellular-gateway\" target=\"_self\">IoT edge gateway<\/a>\u00a0con\u00e7ue pour l'IoT industriel. Avec des protocoles industriels pr\u00e9-int\u00e9gr\u00e9s tels que Modbus TCP\/RTU et des clouds IoT comme MS Azure et AWS,\u00a0<a href=\"https:\/\/inhandgo.com\/products\/ingateway502-industrial-cellular-gateway\" target=\"_self\">IoT edge gateway<\/a>\u00a0facilite la collecte de donn\u00e9es \u00e0 partir de diff\u00e9rents appareils sur site, la validation des donn\u00e9es et leur t\u00e9l\u00e9chargement vers le cloud - et la configuration ne prend que quelques minutes sans aucune programmation.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67c42e8 elementor-widget elementor-widget-image\" data-id=\"67c42e8\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"554\" height=\"220\" src=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/ig502-modbus.png\" class=\"attachment-large size-large wp-image-17506\" alt=\"\" srcset=\"https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/ig502-modbus.png 554w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/ig502-modbus-300x119.png 300w, https:\/\/www.inhand.com\/wp-content\/uploads\/2023\/09\/ig502-modbus-18x7.png 18w\" sizes=\"(max-width: 554px) 100vw, 554px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fbc0833 elementor-widget elementor-widget-text-editor\" data-id=\"fbc0833\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p>Le<a href=\"https:\/\/inhandgo.com\/products\/ingateway502-industrial-cellular-gateway\" target=\"_self\">\u00a0passerelle\u00a0<\/a>peut jouer le r\u00f4le de ma\u00eetre Modbus et lire les registres d'un dispositif esclave Modbus. Les signaux peuvent \u00eatre transmis \u00e0 la fois sur la liaison RS485 et sur la liaison Ethernet.<\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4dc21528 e-flex e-con-boxed e-con e-child\" data-id=\"4dc21528\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;container_type&quot;:&quot;flex&quot;,&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5c7efff0 e-con-full e-flex e-con e-child\" data-id=\"5c7efff0\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;full&quot;,&quot;container_type&quot;:&quot;flex&quot;}\">\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-4ac4d1fd e-con-full e-flex e-con e-child\" data-id=\"4ac4d1fd\" data-element_type=\"container\" 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href=\"https:\/\/www.inhand.com\/fr\/industry\/digital-factory\/\">\n\t\t\t\t\t\t\t\t<span class=\"ha-post-list-icon\"><i aria-hidden=\"true\" class=\"hm hm-tb-post-content\"><\/i><\/span>\t\t\t\t\t\t\t\t<div class=\"ha-post-list-content\">\n\t\t\t\t\t\t\t\t\t<h2 class=\"ha-post-list-title\">Usine num\u00e9rique<\/h2>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t\t<\/ul>\n\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-450778a1 e-flex e-con-boxed e-con e-parent\" data-id=\"450778a1\" data-element_type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;container_type&quot;:&quot;flex&quot;,&quot;content_width&quot;:&quot;boxed&quot;}\" data-core-v316-plus=\"true\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7ef50058 elementor-widget elementor-widget-ucaddon_uc_card_post_carousel\" data-id=\"7ef50058\" data-element_type=\"widget\" data-widget_type=\"ucaddon_uc_card_post_carousel.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\n<!-- start Post Carousel Lite -->\n\t\t<link id='font-awesome-css' href='https:\/\/www.inhand.com\/wp-content\/plugins\/unlimited-elements-for-elementor-premium\/assets_libraries\/font-awesome6\/fontawesome-all.min.css' type='text\/css' rel='stylesheet' >\n\t\t<link id='font-awesome-4-shim-css' href='https:\/\/www.inhand.com\/wp-content\/plugins\/unlimited-elements-for-elementor-premium\/assets_libraries\/font-awesome6\/fontawesome-v4-shims.min.css' type='text\/css' rel='stylesheet' >\n\t\t<link id='owl-carousel-css' href='https:\/\/www.inhand.com\/wp-content\/plugins\/unlimited-elements-for-elementor-premium\/assets_libraries\/owl-carousel-new\/assets\/owl.carousel.css' type='text\/css' 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Elle d\u00e9tecte instantan\u00e9ment les EPI\u2026<\/div>    <div class=\"ue_post_btn_holder\"><a class=\"uc_more_btn\"  href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/ai-construction-safety-edge-decision\/\">En savoir plus \u2192<\/a><\/div>  <\/div>\n<\/div>\n<div id=\"uc_uc_card_post_carousel_elementor_7ef50058_item5\" class=\"uc_image_carousel_container_holder ue_post_carousel_item ue-Blogs\">\n  <div class=\"uc_image_carousel_placeholder\">\n    <a href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/from-sampling-to-100-percent-ai-inspection\/\"><div calss=\"uc_image_carousel_bg\" style=\"background-image:url(https:\/\/www.inhand.com\/wp-content\/uploads\/EC5550-768x563.jpg); background-size:cover; background-position:center; height:200px;\"><\/div><\/a>\n  <\/div>\n\n  <div class=\"uc_image_carousel_content\" >\n                <a href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/from-sampling-to-100-percent-ai-inspection\/\" style=\"text-decoration:none;\"><div class=\"uc_post_title\" style=\"text-decoration:none;\">De l&#039;\u00e9chantillonnage \u00e0 l&#039;inspection IA 100%<\/div><\/a>    <div class=\"ue_post_intro\">L&#039;agr\u00e9gation des op\u00e9rateurs 5G expliqu\u00e9e : d\u00e9bloquez une connectivit\u00e9 ultra-rapide et r\u00e9siliente avec le prochain business FWA12...<\/div>    <div class=\"ue_post_btn_holder\"><a class=\"uc_more_btn\"  href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/from-sampling-to-100-percent-ai-inspection\/\">En savoir plus \u2192<\/a><\/div>  <\/div>\n<\/div>\n<div id=\"uc_uc_card_post_carousel_elementor_7ef50058_item6\" class=\"uc_image_carousel_container_holder ue_post_carousel_item ue-Blogs\">\n  <div class=\"uc_image_carousel_placeholder\">\n    <a href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/what-is-carrier-aggregation\/\"><div calss=\"uc_image_carousel_bg\" style=\"background-image:url(https:\/\/www.inhand.com\/wp-content\/uploads\/carrier-aggregation-768x563.jpg); 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D\u00e9couvrez comment InHand\u2026<\/div>    <div class=\"ue_post_btn_holder\"><a class=\"uc_more_btn\"  href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/traffic-shaping-for-network-management\/\">En savoir plus \u2192<\/a><\/div>  <\/div>\n<\/div>\n<div id=\"uc_uc_card_post_carousel_elementor_7ef50058_item10\" class=\"uc_image_carousel_container_holder ue_post_carousel_item ue-Blogs\">\n  <div class=\"uc_image_carousel_placeholder\">\n    <a href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/deploying-aws-iot-sitewise-on-ec942-edge-computer\/\"><div calss=\"uc_image_carousel_bg\" style=\"background-image:url(https:\/\/www.inhand.com\/wp-content\/uploads\/deploy-aws-iot-sitewise-on-ec942-edge-computer-768x499.jpg); background-size:cover; background-position:center; height:200px;\"><\/div><\/a>\n  <\/div>\n\n  <div class=\"uc_image_carousel_content\" >\n                <a href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/deploying-aws-iot-sitewise-on-ec942-edge-computer\/\" style=\"text-decoration:none;\"><div class=\"uc_post_title\" style=\"text-decoration:none;\">D\u00e9ploiement d'AWS IoT SiteWise sur l'InHand EC942 pour l'analyse des donn\u00e9es industrielles<\/div><\/a>    <div class=\"ue_post_intro\">D\u00e9ployez AWS IoT SiteWise sur l'EC942 pour obtenir des informations sur les donn\u00e9es industrielles en temps r\u00e9el avec...<\/div>    <div class=\"ue_post_btn_holder\"><a class=\"uc_more_btn\"  href=\"https:\/\/www.inhand.com\/fr\/support\/blogs\/deploying-aws-iot-sitewise-on-ec942-edge-computer\/\">En savoir plus \u2192<\/a><\/div>  <\/div>\n<\/div>\n\n   <\/div>\t\n<\/div>\n\n<!-- --->\n<!-- --->\n<!-- --->\n<!-- end Post Carousel Lite -->\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Ce blog pr\u00e9sente le concept de protocole et explique ce qu'est le protocole Modbus, comment il peut \u00eatre utilis\u00e9 dans l'industrie et pourquoi il est si populaire.<\/p>","protected":false},"author":1,"featured_media":32222,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[126],"tags":[],"class_list":["post-12323","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs"],"blocksy_meta":"","acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.1 (Yoast SEO v23.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>What is Modbus and How does It Work in the Industry? 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