{"id":3539,"date":"2025-12-01T00:00:00","date_gmt":"2025-12-01T00:00:00","guid":{"rendered":"https:\/\/lp.szlogic.cn\/glossary\/fmmu-ethercat-fieldbus-memory-management-unit-guide\/"},"modified":"2026-06-22T04:30:14","modified_gmt":"2026-06-22T04:30:14","slug":"fmmu-ethercat-fieldbus-memory-management-unit-guide","status":"publish","type":"post","link":"https:\/\/resourceslp.szlogic.cn\/vi\/glossary\/fmmu-ethercat-fieldbus-memory-management-unit-guide","title":{"rendered":"FMMU \u0111\u01b0\u1ee3c gi\u1ea3i th\u00edch: \u0110\u01a1n v\u1ecb \u00e1nh x\u1ea1 b\u1ed9 nh\u1edb l\u00f5i trong EtherCAT"},"content":{"rendered":"<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b3640423b8524db9adc3f9275a6cfda1.webp\" alt=\"What Is FMMU (Fieldbus Memory Management Unit) in EtherCAT? A Complete Technical Guide\" class=\"wp-image-3534\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b3640423b8524db9adc3f9275a6cfda1.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b3640423b8524db9adc3f9275a6cfda1-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b3640423b8524db9adc3f9275a6cfda1-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b3640423b8524db9adc3f9275a6cfda1-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/b3640423b8524db9adc3f9275a6cfda1-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Trong t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p hi\u1ec7n \u0111\u1ea1i, vi\u1ec7c trao \u0111\u1ed5i d\u1eef li\u1ec7u th\u1eddi gian th\u1ef1c l\u00e0 thi\u1ebft y\u1ebfu \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111i\u1ec1u khi\u1ec3n nhanh, \u0111\u1ed3ng b\u1ed9 v\u00e0 c\u1ef1c k\u1ef3 \u0111\u00e1ng tin c\u1eady. <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ethercat-definitive-guide-realtime-industrial-ethernet\/\">EtherCAT<br><\/a>\u2014m\u1ed9t trong nh\u1eefng c\u00f4ng ngh\u1ec7 Ethernet c\u00f4ng nghi\u1ec7p h\u00e0ng \u0111\u1ea7u\u2014\u0111\u1ea1t \u0111\u01b0\u1ee3c hi\u1ec7u n\u0103ng xu\u1ea5t s\u1eafc nh\u1edd m\u1ed9t s\u1ed1 \u0111\u1ed5i m\u1edbi ki\u1ebfn tr\u00fac. Trong s\u1ed1 n\u00e0y, <strong>FMMU (\u0110\u01a1n v\u1ecb qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb fieldbus)<\/strong> \u0111\u00f3ng vai tr\u00f2 trung t\u00e2m.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">B\u00e0i vi\u1ebft n\u00e0y cung c\u1ea5p l\u1eddi gi\u1ea3i th\u00edch r\u00f5 r\u00e0ng, ch\u00ednh x\u00e1c v\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt v\u1ec1 FMMU l\u00e0 g\u00ec, t\u1ea1i sao FMMU quan tr\u1ecdng v\u00e0 c\u00e1ch FMMU gi\u00fap EtherCAT \u0111\u1ea1t \u0111\u01b0\u1ee3c kh\u1ea3 n\u0103ng truy\u1ec1n th\u00f4ng th\u1eddi gian th\u1ef1c \u1edf m\u1ee9c microsecond. Ch\u00fang t\u00f4i c\u0169ng gi\u1edbi thi\u1ec7u c\u00e1ch <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">c\u00e1c module b\u1ed9 thu ph\u00e1t s\u1ee3i quang SFP c\u1ee7a LINK-PP <\/a>h\u1ed7 tr\u1ee3 li\u1ec1n m\u1ea1ch c\u00e1c m\u1ea1ng EtherCAT t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >FMMU trong EtherCAT l\u00e0 g\u00ec?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>FMMU (\u0110\u01a1n v\u1ecb qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb fieldbus)<\/strong> l\u00e0 c\u01a1 ch\u1ebf ph\u1ea7n c\u1ee9ng b\u00ean trong m\u1ed7i thi\u1ebft b\u1ecb slave EtherCAT, \u00e1nh x\u1ea1 <strong>\u0111\u1ecba ch\u1ec9 d\u1eef li\u1ec7u quy tr\u00ecnh logic t\u1eeb Master EtherCAT<\/strong> v\u1edbi <strong>sang \u0111\u1ecba ch\u1ec9 b\u1ed9 nh\u1edb v\u1eadt l\u00fd c\u1ee7a t\u1eebng n\u00fat slave ri\u00eang l\u1ebb<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p><strong>FMMU cho ph\u00e9p Master EtherCAT truy c\u1eadp d\u1eef li\u1ec7u ph\u00e2n t\u00e1n tr\u00ean nhi\u1ec1u thi\u1ebft b\u1ecb slave nh\u01b0 th\u1ec3 \u0111\u00f3 l\u00e0 m\u1ed9t kh\u1ed1i b\u1ed9 nh\u1edb li\u00ean t\u1ee5c duy nh\u1ea5t.<\/strong><\/p><\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">C\u01a1 ch\u1ebf n\u00e0y r\u1ea5t quan tr\u1ecdng \u0111\u1ed1i v\u1edbi x\u1eed l\u00fd d\u1eef li\u1ec7u \u201ctr\u00ean \u0111\u01b0\u1eddng \u0111i\u201d t\u1ed1c \u0111\u1ed9 cao c\u1ee7a EtherCAT, cho ph\u00e9p truy\u1ec1n th\u00f4ng fieldbus c\u00f3 t\u00ednh x\u00e1c \u0111\u1ecbnh v\u00e0 \u0111\u1ed9 tr\u1ec5 th\u1ea5p.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >T\u1ea1i sao EtherCAT c\u1ea7n FMMU?<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c h\u1ec7 th\u1ed1ng fieldbus truy\u1ec1n th\u1ed1ng th\u01b0\u1eddng y\u00eau c\u1ea7u master giao ti\u1ebfp ri\u00eang l\u1ebb v\u1edbi t\u1eebng n\u00fat, d\u1eabn \u0111\u1ebfn:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 tr\u1ec5 cao h\u01a1n<\/p><\/li><li><p>Gia t\u0103ng chi ph\u00ed giao ti\u1ebfp<\/p><\/li><li><p>T\u1ef7 l\u1ec7 c\u1eadp nh\u1eadt th\u1ea5p h\u01a1n<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">EtherCAT gi\u1ea3i quy\u1ebft v\u1ea5n \u0111\u1ec1 n\u00e0y b\u1eb1ng m\u1ed9t c\u00e1ch ti\u1ebfp c\u1eadn kh\u00e1c:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2714 Khung EtherCAT l\u1ea7n l\u01b0\u1ee3t \u0111i qua t\u1ea5t c\u1ea3 c\u00e1c slave.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed7i slave ch\u1ec9 \u0111\u1ecdc v\u00e0 ghi d\u1eef li\u1ec7u thu\u1ed9c v\u1ec1 n\u00f3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u2714 FMMU \u0111\u1ea3m b\u1ea3o d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c \u0111\u1eb7t \u1edf v\u1ecb tr\u00ed logic ch\u00ednh x\u00e1c.<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">K\u1ebft qu\u1ea3 l\u00e0 trao \u0111\u1ed5i d\u1eef li\u1ec7u chu k\u1ef3 c\u1ef1c k\u1ef3 hi\u1ec7u qu\u1ea3.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >C\u00e1c l\u1ee3i \u00edch ch\u00ednh do FMMU mang l\u1ea1i:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>Kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 logic li\u00ean t\u1ee5c<\/strong> d\u00e0nh cho Master<\/p><\/li><li><p><strong>\u00c1nh x\u1ea1 ch\u00ednh x\u00e1c \u1edf m\u1ee9c byte<\/strong><\/p><\/li><li><p><strong>X\u1eed l\u00fd \u201ctr\u00ean \u0111\u01b0\u1eddng \u0111i\u201d kh\u00f4ng sao ch\u00e9p (zero-copy)<\/strong><\/p><\/li><li><p><strong>Th\u1eddi gian chu k\u1ef3 c\u1ef1c th\u1ea5p (d\u01b0\u1edbi 100 \u03bcs)<\/strong><\/p><\/li><li><p><strong>S\u1eed d\u1ee5ng b\u0103ng th\u00f4ng cao (g\u1ea7n 100%%)<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u00e2y l\u00e0 m\u1ed9t trong nh\u1eefng l\u00fd do ch\u00ednh <a target=\"_blank\" rel=\"\" href=\"https:\/\/resourceslp.szlogic.cn\/vi\/knowledge-center\/ethercat-definitive-guide-realtime-industrial-ethernet\/\">EtherCAT<br><\/a> ph\u00f9 h\u1ee3p v\u1edbi:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng<\/p><\/li><li><p>Robot<\/p><\/li><li><p>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n servo t\u1ed1c \u0111\u1ed9 cao<\/p><\/li><li><p>T\u1ef1 \u0111\u1ed9ng h\u00f3a ch\u00ednh x\u00e1c<\/p><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" >C\u00e1ch FMMU ho\u1ea1t \u0111\u1ed9ng: \u00c1nh x\u1ea1 \u0111\u1ecba ch\u1ec9 logic so v\u1edbi \u0111\u1ecba ch\u1ec9 v\u1eadt l\u00fd<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Truy\u1ec1n th\u00f4ng EtherCAT s\u1eed d\u1ee5ng hai lo\u1ea1i \u0111\u1ecba ch\u1ec9 b\u1ed9 nh\u1edb:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ecba ch\u1ec9 logic (Ch\u1ebf \u0111\u1ed9 xem Master)<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/808e8441e1fd4bc99473773fa9d4b233.jpg\" alt=\"FMMU Logical Address (Master view)\" class=\"wp-image-3535\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/808e8441e1fd4bc99473773fa9d4b233.jpg 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/808e8441e1fd4bc99473773fa9d4b233-300x300.jpg 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/808e8441e1fd4bc99473773fa9d4b233-150x150.jpg 150w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/808e8441e1fd4bc99473773fa9d4b233-768x768.jpg 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/808e8441e1fd4bc99473773fa9d4b233-12x12.jpg 12w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t kh\u00f4ng gian \u0111\u1ecba ch\u1ec9 \u1ea3o, li\u00ean t\u1ee5c do Master x\u00e1c \u0111\u1ecbnh cho d\u1eef li\u1ec7u quy tr\u00ecnh.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >\u0110\u1ecba ch\u1ec9 v\u1eadt l\u00fd (Ch\u1ebf \u0111\u1ed9 xem Slave)<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c \u0111\u1ecba ch\u1ec9 thanh ghi th\u1ef1c t\u1ebf ho\u1eb7c b\u1ed9 \u0111\u1ec7m d\u1eef li\u1ec7u b\u00ean trong thi\u1ebft b\u1ecb slave.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>FMMU \u00e1nh x\u1ea1 b\u1ed9 nh\u1edb logic \u2192 b\u1ed9 nh\u1edb v\u1eadt l\u00fd<\/strong>, cho ph\u00e9p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>\u0110\u1ed9 ph\u00e2n gi\u1ea3i theo t\u1eebng bit<\/p><\/li><li><p>Ki\u1ec3m so\u00e1t \u0111\u1ecdc\/ghi<\/p><\/li><li><p>\u0110\u1ed3ng b\u1ed9 h\u00f3a hi\u1ec7u qu\u1ea3 v\u1edbi c\u00e1c SyncManager<\/p><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" >V\u00ed d\u1ee5:<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">N\u1ebfu Master t\u1ea1o m\u1ed9t v\u00f9ng PDO logic 60 byte:<\/p>\n\n\n\n<figure class=\"wp-block-table\">\n<table class=\"has-fixed-layout\">\n<colgroup><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><col style=\"min-width: 25px;\"\/><\/colgroup><tbody><tr><th colspan=\"1\" rowspan=\"1\"><p>Slave<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>B\u1ed9 nh\u1edb v\u1eadt l\u00fd<\/p><\/th><th colspan=\"1\" rowspan=\"1\"><p>\u0110\u1ecba ch\u1ec9 logic \u0111\u01b0\u1ee3c \u00e1nh x\u1ea1<\/p><\/th><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft b\u1ecb tr\u1ea1m A<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0x1100<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0x0000 \u2013 0x000F<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft b\u1ecb tr\u1ea1m B<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0x2000<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0x0010 \u2013 0x0023<\/p><\/td><\/tr><tr><td colspan=\"1\" rowspan=\"1\"><p>Thi\u1ebft b\u1ecb tr\u1ea1m C<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0x3200<\/p><\/td><td colspan=\"1\" rowspan=\"1\"><p>0x0024 \u2013 0x003B<\/p><\/td><\/tr><\/tbody>\n<\/table>\n<\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Master ch\u1ec9 \u0111\u1ecdc\/ghi <strong>m\u1ed9t v\u00f9ng li\u00ean t\u1ee5c 60 byte<\/strong>, nh\u01b0ng d\u1eef li\u1ec7u t\u1ef1 \u0111\u1ed9ng \u0111\u01b0\u1ee3c \u0111\u1ecbnh tuy\u1ebfn t\u1edbi t\u1eebng slave th\u00f4ng qua ph\u1ea7n c\u1ee9ng FMMU c\u1ee7a ch\u00fang.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1200\" height=\"459\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5b84055a9e1044699d33658cfa74b356.webp\" alt=\"What Is the FMMU in EtherCAT?\" class=\"wp-image-3536\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5b84055a9e1044699d33658cfa74b356.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5b84055a9e1044699d33658cfa74b356-300x115.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5b84055a9e1044699d33658cfa74b356-1024x392.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5b84055a9e1044699d33658cfa74b356-768x294.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/5b84055a9e1044699d33658cfa74b356-18x7.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" >FMMU b\u00ean trong B\u1ed9 \u0111i\u1ec1u khi\u1ec3n EtherCAT Slave (ESC)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">FMMU \u0111\u01b0\u1ee3c tri\u1ec3n khai trong <strong>ESC (B\u1ed9 \u0111i\u1ec1u khi\u1ec3n thi\u1ebft b\u1ecb ph\u1ee5 EtherCAT)<\/strong>, \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong c\u00e1c chip slave EtherCAT nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Beckhoff ET1100<\/p><\/li><li><p>ET1200<\/p><\/li><li><p>C\u00e1c l\u00f5i IP ESC c\u1ee7a b\u00ean th\u1ee9 ba<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ESC \u0111i\u1ec3n h\u00ecnh bao g\u1ed3m:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>FMMU (th\u01b0\u1eddng t\u1eeb 1\u20133 th\u1ec3 hi\u1ec7n)<\/strong><\/p><\/li><li><p><strong>SyncManager (SM)<\/strong><\/p><\/li><li><p><strong>M\u00e1y tr\u1ea1ng th\u00e1i AL<\/strong><\/p><\/li><li><p><strong>B\u1ed9 x\u1eed l\u00fd h\u1ed9p th\u01b0 (Mailbox handlers)<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Vi\u1ec7c c\u1ea5u h\u00ecnh FMMU \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n trong giai \u0111o\u1ea1n kh\u1edfi t\u1ea1o th\u00f4ng qua c\u00e1c giao th\u1ee9c h\u1ed9p th\u01b0 (CoE, FoE, EoE).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >FMMU v\u00e0 X\u1eed l\u00fd Tr\u00ean \u0110\u01b0\u1eddng \u0110i (On-the-Fly Processing)<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">M\u1ed9t trong nh\u1eefng t\u00ednh n\u0103ng n\u1ed5i b\u1eadt c\u1ee7a EtherCAT l\u00e0 c\u00e1c slave <strong>kh\u00f4ng sao ch\u00e9p hay \u0111\u1ec7m to\u00e0n b\u1ed9 khung Ethernet<\/strong>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Thay v\u00ec:<\/p>\n\n\n\n<ol class=\"wp-block-list\" >\n<li><p>Khung Ethernet lu\u1ed3ng qua slave.<\/p><\/li><li><p>FMMU ki\u1ec3m tra xem nh\u1eefng byte n\u00e0o thu\u1ed9c v\u1ec1 slave n\u00e0y.<\/p><\/li><li><p>D\u1eef li\u1ec7u \u0111\u01b0\u1ee3c ch\u00e8n v\u00e0o ho\u1eb7c tr\u00edch xu\u1ea5t ngay tr\u00ean \u0111\u01b0\u1eddng \u0111i.<\/p><\/li><li><p>Khung ti\u1ebfp t\u1ee5c truy\u1ec1n t\u1edbi slave ti\u1ebfp theo v\u1edbi \u0111\u1ed9 tr\u1ec5 ch\u1ec9 v\u00e0i nanogi\u00e2y.<\/p><\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Thi\u1ebft k\u1ebf n\u00e0y cho ph\u00e9p t\u1ed1c \u0111\u1ed9 c\u1eadp nh\u1eadt \u1edf m\u1ee9c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p><strong>100 tr\u1ee5c)<\/strong><\/p><\/li><li><p><strong>&lt; 10 \u03bcs cho \u0111\u1ed9 tr\u1ec5 chuy\u1ec3n ti\u1ebfp m\u1ed7i slave<\/strong><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Kh\u00f4ng c\u00f3 ki\u1ebfn tr\u00fac fieldbus n\u00e0o kh\u00e1c \u0111\u1ea1t \u0111\u01b0\u1ee3c m\u1ee9c \u0111\u1ed9 x\u00e1c \u0111\u1ecbnh (determinism) nh\u01b0 v\u1eady v\u1edbi h\u1ec7 th\u1ed1ng d\u00e2y n\u1ed1i \u0111\u01a1n gi\u1ea3n nh\u01b0 th\u1ebf.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >C\u00e1c \u1ee9ng d\u1ee5ng m\u00e0 FMMU \u0111\u00f3ng vai tr\u00f2 then ch\u1ed1t<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">FMMU g\u00f3p tr\u1ef1c ti\u1ebfp v\u00e0o hi\u1ec7u n\u0103ng c\u1ee7a EtherCAT trong c\u00e1c l\u0129nh v\u1ef1c:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>B\u1ed9 \u0111i\u1ec1u khi\u1ec3n chuy\u1ec3n \u0111\u1ed9ng \u0111a tr\u1ee5c<\/p><\/li><li><p>Robot g\u1eafp v\u00e0 \u0111\u1eb7t (pick-and-place)<\/p><\/li><li><p>M\u00e1y CNC<\/p><\/li><li><p>Thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i v\u00e0 in \u1ea5n<\/p><\/li><li><p>S\u1ea3n xu\u1ea5t b\u00e1n d\u1eabn<\/p><\/li><li><p>I\/O ph\u00e2n t\u00e1n th\u1eddi gian th\u1ef1c<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Trong c\u00e1c h\u1ec7 th\u1ed1ng c\u00f3 chu k\u1ef3 \u0111i\u1ec1u khi\u1ec3n c\u1ef1c k\u1ef3 ch\u1eb7t, FMMU \u0111\u1ea3m b\u1ea3o t\u00ednh nh\u1ea5t qu\u00e1n d\u1eef li\u1ec7u \u1ed5n \u0111\u1ecbnh v\u00e0 ch\u00ednh x\u00e1c.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" >S\u1ea3n ph\u1ea9m s\u1ee3i c\u00f4ng nghi\u1ec7p LINK-PP cho m\u1ea1ng EtherCAT<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"712\" src=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/68b2a236f98f4fe3bc2f22d4e290d690.webp\" alt=\"industrial-grade fiber transceivers\" class=\"wp-image-3537\" srcset=\"https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/68b2a236f98f4fe3bc2f22d4e290d690.webp 1200w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/68b2a236f98f4fe3bc2f22d4e290d690-300x178.webp 300w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/68b2a236f98f4fe3bc2f22d4e290d690-1024x608.webp 1024w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/68b2a236f98f4fe3bc2f22d4e290d690-768x456.webp 768w, https:\/\/resourceslp.szlogic.cn\/wp-content\/uploads\/2026\/05\/68b2a236f98f4fe3bc2f22d4e290d690-18x12.webp 18w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">EtherCAT th\u01b0\u1eddng s\u1eed d\u1ee5ng c\u00e1c l\u1edbp v\u1eadt l\u00fd Ethernet nh\u01b0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>100BASE-TX<\/p><\/li><li><p>100BASE-FX<\/p><\/li><li><p>1000BASE-X<br><\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u0110\u1ed1i v\u1edbi c\u00e1c m\u00f4i tr\u01b0\u1eddng y\u00eau c\u1ea7u truy\u1ec1n th\u00f4ng kho\u1ea3ng c\u00e1ch xa ho\u1eb7c ch\u1ed1ng nhi\u1ec5u \u0111i\u1ec7n t\u1eeb (EMI), LINK-PP cung c\u1ea5p m\u1ed9t lo\u1ea1t r\u1ed9ng r\u00e3i c\u00e1c<a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/products\/476820.htm\"> <strong>b\u1ed9 thu ph\u00e1t quang c\u00f4ng nghi\u1ec7p<\/strong><\/a><strong> and <\/strong><a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-26155-1g-sfp.htm\"><strong>C\u00e1c m\u00f4-\u0111un SFP<\/strong><\/a>:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L\u1ee3i \u00edch cho c\u00e1c \u1ee9ng d\u1ee5ng EtherCAT:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Kh\u1ea3 n\u0103ng mi\u1ec5n nhi\u1ec5m EMI cao<\/p><\/li><li><p>T\u00f9y ch\u1ecdn nhi\u1ec7t \u0111\u1ed9 c\u00f4ng nghi\u1ec7p t\u1eeb -40\u00b0C \u0111\u1ebfn +85\u00b0C<\/p><\/li><li><p>\u0110\u1ed9 tr\u1ec5 th\u1ea5p v\u00e0 hi\u1ec7u su\u1ea5t quang \u1ed5n \u0111\u1ecbnh<\/p><\/li><li><p>T\u01b0\u01a1ng th\u00edch v\u1edbi PLC, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n servo v\u00e0 b\u1ed9 chuy\u1ec3n m\u1ea1ch c\u00f4ng nghi\u1ec7p<\/p><\/li><li><p>Li\u00ean k\u1ebft kho\u1ea3ng c\u00e1ch xa l\u00ean \u0111\u1ebfn 80 km<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1c m\u00f4-\u0111un quang n\u00e0y \u0111\u1ea3m b\u1ea3o kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i \u0111\u00e1ng tin c\u1eady \u1edf t\u1ea7ng v\u1eadt l\u00fd cho c\u00e1c m\u1ea1ng EtherCAT d\u1ef1a tr\u00ean \u0111i\u1ec1u khi\u1ec3n x\u00e1c \u0111\u1ecbnh theo FMMU.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" >T\u00f3m t\u1eaft<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>FMMU (\u0110\u01a1n v\u1ecb qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb fieldbus)<\/strong> l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u1ed5i m\u1edbi n\u1ec1n t\u1ea3ng l\u00e0m cho EtherCAT tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng m\u1ea1ng c\u00f4ng nghi\u1ec7p nhanh nh\u1ea5t v\u00e0 x\u00e1c \u0111\u1ecbnh nh\u1ea5t. B\u1eb1ng c\u00e1ch \u00e1nh x\u1ea1 d\u1eef li\u1ec7u quy tr\u00ecnh logic v\u00e0o c\u00e1c \u0111\u1ecba ch\u1ec9 v\u1eadt l\u00fd c\u1ee5 th\u1ec3 c\u1ee7a thi\u1ebft b\u1ecb slave v\u00e0 h\u1ed7 tr\u1ee3 x\u1eed l\u00fd khung d\u1eef li\u1ec7u tr\u00ean-the-fly, FMMU cho ph\u00e9p:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><p>Th\u1eddi gian chu k\u1ef3 \u1edf m\u1ee9c microsecond<\/p><\/li><li><p>\u0110\u1ed3ng b\u1ed9 h\u00f3a c\u1ef1c k\u1ef3 ch\u00ednh x\u00e1c<\/p><\/li><li><p>S\u1eed d\u1ee5ng b\u0103ng th\u00f4ng hi\u1ec7u qu\u1ea3<\/p><\/li><li><p>\u0110i\u1ec1u khi\u1ec3n ph\u00e2n t\u00e1n c\u00f3 kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/p><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Khi k\u1ebft h\u1ee3p v\u1edbi c\u00e1c m\u00f4-\u0111un quang c\u00f4ng nghi\u1ec7p b\u1ec1n b\u1ec9, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c m\u00f4-\u0111un <a target=\"_blank\" rel=\"\" href=\"https:\/\/www.l-p.com\/store-25432-optics-transceivers-sfp-modules.htm\">SFP v\u00e0 b\u1ed9 thu ph\u00e1t quang c\u1ee7a LINK-PP<\/a>, EtherCAT tr\u1edf th\u00e0nh m\u1ed9t x\u01b0\u01a1ng s\u1ed1ng m\u1ea1nh m\u1ebd v\u00e0 \u0111\u00e1ng tin c\u1eady cho c\u00e1c h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a hi\u1ec7n \u0111\u1ea1i.<\/p>","protected":false},"excerpt":{"rendered":"<p>T\u00ecm hi\u1ec3u FMMU (\u0110\u01a1n v\u1ecb qu\u1ea3n l\u00fd b\u1ed9 nh\u1edb Fieldbus) l\u00e0 g\u00ec v\u00e0 c\u00e1ch n\u00f3 cho ph\u00e9p truy\u1ec1n th\u00f4ng EtherCAT th\u1eddi gian th\u1ef1c th\u00f4ng qua \u00e1nh x\u1ea1 b\u1ed9 nh\u1edb hi\u1ec7u qu\u1ea3 v\u00e0 x\u1eed l\u00fd d\u1eef li\u1ec7u tr\u1ef1c ti\u1ebfp.<\/p>","protected":false},"author":1,"featured_media":3538,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[27],"tags":[26],"class_list":["post-3539","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-optics-transceivers"],"blocksy_meta":[],"acf":[],"_links":{"self":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3539","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/comments?post=3539"}],"version-history":[{"count":5,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3539\/revisions"}],"predecessor-version":[{"id":10817,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/posts\/3539\/revisions\/10817"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media\/3538"}],"wp:attachment":[{"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/media?parent=3539"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/categories?post=3539"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/resourceslp.szlogic.cn\/vi\/wp-json\/wp\/v2\/tags?post=3539"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}