{"id":7731,"date":"2025-08-29T03:29:17","date_gmt":"2025-08-29T03:29:17","guid":{"rendered":"https:\/\/www.omch.com\/?p=7731"},"modified":"2025-11-14T08:59:10","modified_gmt":"2025-11-14T08:59:10","slug":"proximity-sensor-symbol","status":"publish","type":"post","link":"https:\/\/www.omch.com\/vi\/proximity-sensor-symbol\/","title":{"rendered":"T\u1eeb \u1ee9ng d\u1ee5ng \u0111\u1ebfn s\u01a1 \u0111\u1ed3 m\u1ea1ch: H\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00e1c k\u00fd hi\u1ec7u v\u00e0 c\u00e1ch l\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn"},"content":{"rendered":"<p>\u0110\u1ed9 tin c\u1eady v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 th\u01b0\u1edbc \u0111o th\u00e0nh c\u00f4ng trong t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p. Con \u0111\u01b0\u1eddng t\u1eeb khi nh\u1eadn di\u1ec7n \u0111\u01b0\u1ee3c m\u1ed9t th\u00e1ch th\u1ee9c tr\u00ean d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t \u0111\u1ebfn khi thi\u1ebft l\u1eadp \u0111\u01b0\u1ee3c m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n m\u1ea1nh m\u1ebd l\u00e0 m\u1ed9t ch\u1eb7ng \u0111\u01b0\u1eddng \u0111\u1ea7y th\u00e1ch th\u1ee9c. Qu\u00e1 tr\u00ecnh n\u00e0y kh\u00f4ng b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t linh ki\u1ec7n, m\u00e0 b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t c\u00e2u h\u1ecfi: Ch\u00fang ta c\u1ea7n ph\u1ea3i l\u00e0m g\u00ec? Ch\u1ec9 khi \u1ee9ng d\u1ee5ng \u0111\u00e3 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh r\u00f5 r\u00e0ng, ch\u00fang ta m\u1edbi c\u00f3 th\u1ec3 l\u1ef1a ch\u1ecdn ph\u1ea7n c\u1ee9ng ph\u00f9 h\u1ee3p, m\u00f4 ph\u1ecfng n\u00f3 tr\u00ean s\u01a1 \u0111\u1ed3 m\u1ea1ch v\u00e0 t\u00edch h\u1ee3p v\u00e0o m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n<p>C\u1ea9m nang to\u00e0n di\u1ec7n n\u00e0y s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n t\u1eebng b\u01b0\u1edbc tr\u00ean h\u00e0nh tr\u00ecnh quan tr\u1ecdng \u0111\u00f3. Ch\u00fang ta s\u1ebd b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t v\u1ea5n \u0111\u1ec1 th\u1ef1c t\u1ebf, l\u1ef1a ch\u1ecdn c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p, \u00e1p d\u1ee5ng quy\u1ebft \u0111\u1ecbnh \u0111\u00f3 v\u00e0o k\u00fd hi\u1ec7u ti\u00eau chu\u1ea9n IEC th\u00edch h\u1ee3p, t\u00edch h\u1ee3p n\u00f3 v\u00e0o m\u1ea1ch PLC \u0111ang ho\u1ea1t \u0111\u1ed9ng, v\u00e0 th\u1eadm ch\u00ed th\u1ea3o lu\u1eadn v\u1ec1 c\u00e1c t\u00ednh n\u0103ng n\u00e2ng cao h\u01a1n c\u1ee7a c\u00e1c c\u1ea3m bi\u1ebfn th\u00f4ng minh th\u1ebf h\u1ec7 m\u1edbi. \u0110\u00e2y ch\u00ednh l\u00e0 c\u1ea9m nang to\u00e0n di\u1ec7n nh\u1ea5t v\u1ec1 qu\u00e1 tr\u00ecnh chuy\u1ec3n \u0111\u1ed5i t\u1eeb \u1ee9ng d\u1ee5ng sang t\u1ef1 \u0111\u1ed9ng h\u00f3a.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol5.webp\" alt=\"Bi\u1ec3u t\u01b0\u1ee3ng c\u1ea3m bi\u1ebfn kho\u1ea3ng c\u00e1ch\" class=\"wp-image-7740\" style=\"object-fit:cover;width:512px;height:384px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol5.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol5-300x225.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol5-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1eaft \u0111\u1ea7u t\u1eeb \u1ee9ng d\u1ee5ng: L\u1ef1a ch\u1ecdn c\u1ea3m bi\u1ebfn ph\u00f9 h\u1ee3p<\/h2>\n\n\n\n<p>Ph\u1ea3i n\u1eafm r\u00f5 th\u1ef1c t\u1ebf v\u1eadt l\u00fd c\u1ee7a \u1ee9ng d\u1ee5ng tr\u01b0\u1edbc khi v\u1ebd b\u1ea5t k\u1ef3 \u0111\u01b0\u1eddng n\u00e0o tr\u00ean s\u01a1 \u0111\u1ed3. Sai l\u1ea7m th\u01b0\u1eddng g\u1eb7p nh\u1ea5t trong thi\u1ebft k\u1ebf h\u1ec7 th\u1ed1ng l\u00e0 ch\u1ecdn c\u1ea3m bi\u1ebfn ch\u1ec9 v\u00ec quen thu\u1ed9c ch\u1ee9 kh\u00f4ng ph\u1ea3i v\u00ec n\u00f3 ph\u00f9 h\u1ee3p. \u0110\u1ec3 tr\u00e1nh \u0111i\u1ec1u n\u00e0y, ch\u00fang ta n\u00ean b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c tr\u1ea3 l\u1eddi b\u1ed1n c\u00e2u h\u1ecfi c\u01a1 b\u1ea3n v\u1ec1 \u0111\u1ed1i t\u01b0\u1ee3ng m\u1ee5c ti\u00eau v\u00e0 m\u00f4i tr\u01b0\u1eddng xung quanh n\u00f3. \u0110\u00f3 l\u00e0 V\u1eadt li\u1ec7u, M\u00f4i tr\u01b0\u1eddng, Kho\u1ea3ng c\u00e1ch v\u00e0 \u0110\u1ed9 ch\u00ednh x\u00e1c, v\u00e0 ch\u00fang t\u1ea1o th\u00e0nh m\u1ed9t khung tham chi\u1ebfu h\u1ee3p l\u00fd cho vi\u1ec7c l\u1ef1a ch\u1ecdn.<\/p>\n\n\n\n<p><strong>V\u1eadt li\u1ec7u m\u1ee5c ti\u00eau:<\/strong><\/p>\n\n\n\n<p>V\u1eadt th\u1ec3 c\u1ea7n ph\u00e1t hi\u1ec7n l\u00e0 kim lo\u1ea1i hay phi kim lo\u1ea1i? N\u00f3 l\u00e0 v\u1eadt th\u1ec3 m\u1edd, trong su\u1ed1t hay ph\u1ea3n chi\u1ebfu? C\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn c\u01a1 b\u1ea3n ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c quy\u1ebft \u0111\u1ecbnh b\u1edfi th\u00e0nh ph\u1ea7n v\u1eadt li\u1ec7u.<\/p>\n\n\n\n<p><strong>Ho\u1ea1t \u0111\u1ed9ng <\/strong><strong>M\u00f4i tr\u01b0\u1eddng<\/strong><strong>:<\/strong><\/p>\n\n\n\n<p>C\u1ea3m bi\u1ebfn c\u00f3 b\u1ecb ti\u1ebfp x\u00fac v\u1edbi c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m nh\u01b0 b\u1ee5i, d\u1ea7u ho\u1eb7c n\u01b0\u1edbc kh\u00f4ng? C\u00f3 nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t, \u0111\u1ed9 rung cao ho\u1eb7c nguy c\u01a1 va \u0111\u1eadp v\u1eadt l\u00fd kh\u00f4ng? C\u1ea3m bi\u1ebfn c\u1ea7n \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf sao cho ch\u1ec9 s\u1ed1 IP (Ingress Protection) c\u1ee7a n\u00f3 ph\u00f9 h\u1ee3p v\u1edbi m\u1ee9c \u0111\u1ed9 kh\u1eafc nghi\u1ec7t c\u1ee7a m\u00f4i tr\u01b0\u1eddng ho\u1ea1t \u0111\u1ed9ng.<\/p>\n\n\n\n<p><strong>Kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn:<\/strong><\/p>\n\n\n\n<p>M\u1eb7t c\u1ea3m bi\u1ebfn ph\u1ea3i c\u00e1ch v\u1eadt th\u1ec3 m\u1ee5c ti\u00eau bao xa (ph\u1ea1m vi c\u1ea3m bi\u1ebfn)? Ph\u1ea1m vi danh \u0111\u1ecbnh n\u00e0y c\u00f3 th\u1ec3 dao \u0111\u1ed9ng t\u1eeb v\u00e0i milim\u00e9t \u0111\u1ebfn v\u00e0i m\u00e9t.<\/p>\n\n\n\n<p><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/strong><strong> v\u00e0 T\u1ed1c \u0111\u1ed9:<\/strong><\/p>\n\n\n\n<p>V\u1ecb tr\u00ed c\u1ee7a v\u1eadt th\u1ec3 c\u1ea7n \u0111\u01b0\u1ee3c ph\u00e1t hi\u1ec7n \u1edf m\u1ee9c \u0111\u1ed9 n\u00e0o? T\u1ed1c \u0111\u1ed9 di chuy\u1ec3n c\u1ee7a m\u1ee5c ti\u00eau l\u00e0 bao nhi\u00eau v\u00e0 th\u1eddi gian ph\u1ea3n h\u1ed3i c\u1ea7n thi\u1ebft c\u1ee7a h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n l\u00e0 bao l\u00e2u?<\/p>\n\n\n\n<p>\u0110\u00e2y l\u00e0 nh\u1eefng y\u1ebfu t\u1ed1 c\u1ea7n xem x\u00e9t, c\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn vi\u1ec7c l\u1ef1a ch\u1ecdn gi\u1eefa c\u00e1c d\u00f2ng c\u1ea3m bi\u1ebfn kho\u1ea3ng c\u00e1ch ch\u00ednh. M\u1eb7c d\u00f9 c\u00f3 nhi\u1ec1u lo\u1ea1i c\u1ea3m bi\u1ebfn chuy\u00ean d\u1ee5ng, nh\u01b0ng b\u1ed1n lo\u1ea1i c\u1ea3m bi\u1ebfn c\u01a1 b\u1ea3n sau \u0111\u00e2y c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u1ea3i quy\u1ebft h\u1ea7u h\u1ebft c\u00e1c \u1ee9ng d\u1ee5ng: c\u1ea3m bi\u1ebfn c\u1ea3m \u1ee9ng, c\u1ea3m bi\u1ebfn \u0111i\u1ec7n dung, c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n v\u00e0 c\u1ea3m bi\u1ebfn si\u00eau \u00e2m. \u0110\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a qu\u00e1 tr\u00ecnh ra quy\u1ebft \u0111\u1ecbnh n\u00e0y, b\u1ea3ng d\u01b0\u1edbi \u0111\u00e2y cung c\u1ea5p m\u1ed9t ma tr\u1eadn ra quy\u1ebft \u0111\u1ecbnh.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>C\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn<\/td><td>V\u1eadt li\u1ec7u m\u1ee5c ti\u00eau l\u00fd t\u01b0\u1edfng<\/td><td>C\u00e1c y\u1ebfu t\u1ed1 m\u00f4i tr\u01b0\u1eddng c\u1ea7n l\u01b0u \u00fd<\/td><td>Ph\u1ea1m vi c\u1ea3m bi\u1ebfn \u0111i\u1ec3n h\u00ecnh<\/td><td>Nh\u1eefng th\u1ebf m\u1ea1nh ch\u00ednh<\/td><\/tr><tr><td>D\u1eabn xu\u1ea5t<\/td><td>Kim lo\u1ea1i m\u00e0u v\u00e0 kim lo\u1ea1i \u0111en<\/td><td>C\u00f3 \u0111\u1ed9 b\u1ec1n r\u1ea5t cao; kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi b\u1ee5i, d\u1ea7u, n\u01b0\u1edbc. Kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi m\u00e0u s\u1eafc c\u1ee7a m\u1ee5c ti\u00eau<\/td><td>Ng\u1eafn (1 mm \u2013 60 mm)<\/td><td>\u0110\u1ed9 b\u1ec1n cao, t\u1ed1c \u0111\u1ed9 cao, hi\u1ec7u qu\u1ea3 v\u1ec1 chi ph\u00ed trong vi\u1ec7c ph\u00e1t hi\u1ec7n kim lo\u1ea1i<\/td><\/tr><tr><td>Dung l\u01b0\u1ee3ng<\/td><td>B\u1ea5t k\u1ef3 ch\u1ea5t r\u1eafn ho\u1eb7c ch\u1ea5t l\u1ecfng n\u00e0o (kim lo\u1ea1i, nh\u1ef1a, g\u1ed7, n\u01b0\u1edbc)<\/td><td>D\u1ec5 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 \u1ea9m, b\u1ee5i b\u00e1m v\u00e0 s\u1ef1 thay \u0111\u1ed5i nhi\u1ec7t \u0111\u1ed9.<\/td><td>Ng\u1eafn (1 mm \u2013 40 mm)<\/td><td>Kh\u1ea3 n\u0103ng ph\u00e1t hi\u1ec7n v\u1eadt li\u1ec7u \u0111a n\u0103ng, c\u00f3 th\u1ec3 \u201cnh\u00ecn xuy\u00ean qua\u201d c\u00e1c b\u1ee9c t\u01b0\u1eddng m\u1ecfng kh\u00f4ng kim lo\u1ea1i<\/td><\/tr><tr><td>Quang \u0111i\u1ec7n<\/td><td>C\u00e1c v\u1eadt th\u1ec3 kh\u00f4ng trong su\u1ed1t, ph\u1ea3n chi\u1ebfu ho\u1eb7c trong su\u1ed1t<\/td><td>Hi\u1ec7u su\u1ea5t c\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi b\u1ee5i, h\u01a1i n\u01b0\u1edbc ho\u1eb7c \u00e1nh s\u00e1ng xung quanh. C\u00f3 th\u1ec3 c\u1ea7n ph\u1ea3i lau \u1ed1ng k\u00ednh<\/td><td>Kh\u00e1c nhau (t\u1eeb mm \u0111\u1ebfn &gt;50 m)<\/td><td>Kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn xa, t\u1ed1c \u0111\u1ed9 r\u1ea5t cao, nhi\u1ec1u ch\u1ebf \u0111\u1ed9 (ph\u1ea3n x\u1ea1 khu\u1ebfch t\u00e1n, ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c, xuy\u00ean ch\u00f9m)<\/td><\/tr><tr><td>Si\u00eau \u00e2m<\/td><td>B\u1ea5t k\u1ef3 v\u1eadt li\u1ec7u n\u00e0o c\u00f3 kh\u1ea3 n\u0103ng ph\u1ea3n x\u1ea1 \u00e2m thanh (r\u1eafn, l\u1ecfng, b\u1ed9t)<\/td><td>Kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi m\u00e0u s\u1eafc ho\u1eb7c \u0111\u1ed9 trong su\u1ed1t c\u1ee7a m\u1ee5c ti\u00eau. C\u00f3 th\u1ec3 b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi hi\u1ec7n t\u01b0\u1ee3ng nhi\u1ec5u lo\u1ea1n kh\u00f4ng kh\u00ed c\u1ef1c \u0111\u1ed9 ho\u1eb7c c\u00e1c v\u1eadt li\u1ec7u m\u1ec1m, c\u00f3 kh\u1ea3 n\u0103ng h\u1ea5p th\u1ee5 \u00e2m thanh<\/td><td>Trung b\u00ecnh \u0111\u1ebfn d\u00e0i (100 mm \u2013 8 m)<\/td><td>R\u1ea5t hi\u1ec7u qu\u1ea3 trong vi\u1ec7c ph\u00e1t hi\u1ec7n c\u00e1c v\u1eadt th\u1ec3 trong su\u1ed1t v\u00e0 \u0111o m\u1ee9c ch\u1ea5t l\u1ecfng; kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi m\u00e0u s\u1eafc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>B\u1eb1ng c\u00e1ch ph\u00e2n t\u00edch b\u1ea3ng n\u00e0y m\u1ed9t c\u00e1ch c\u00f3 h\u1ec7 th\u1ed1ng, k\u1ef9 s\u01b0 c\u00f3 th\u1ec3 t\u1ef1 tin thu h\u1eb9p ph\u1ea1m vi l\u1ef1a ch\u1ecdn \u0111\u1ec3 t\u00ecm ra c\u00f4ng ngh\u1ec7 t\u1ed1i \u01b0u cho nhi\u1ec7m v\u1ee5 c\u1ee5 th\u1ec3, t\u1eeb \u0111\u00f3 \u0111\u1ea3m b\u1ea3o n\u1ec1n t\u1ea3ng v\u1eefng ch\u1eafc cho h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nghi\u00ean c\u1ee9u \u0111i\u1ec3n h\u00ecnh: Ph\u00e1t hi\u1ec7n chai PET tr\u00ean b\u0103ng t\u1ea3i<\/h2>\n\n\n\n<p>\u0110\u1ec3 minh h\u1ecda cho quy tr\u00ecnh l\u1ef1a ch\u1ecdn n\u00e0y, ch\u00fang ta h\u00e3y ph\u00e2n t\u00edch m\u1ed9t \u1ee9ng d\u1ee5ng c\u00f4ng nghi\u1ec7p ph\u1ed5 bi\u1ebfn v\u00e0 \u0111\u1ea7y th\u00e1ch th\u1ee9c: ph\u00e1t hi\u1ec7n m\u1ed9t c\u00e1ch \u0111\u00e1ng tin c\u1eady c\u00e1c chai Polyethylene Terephthalate (PET) trong su\u1ed1t tr\u00ean b\u0103ng t\u1ea3i c\u1ee7a d\u00e2y chuy\u1ec1n \u0111\u00f3ng chai t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">V\u1ea5n \u0111\u1ec1:<\/h4>\n\n\n\n<p>M\u1ee5c ti\u00eau l\u00e0 \u0111\u1ea3m b\u1ea3o s\u1ed1 l\u01b0\u1ee3ng chai \u0111\u01b0\u1ee3c \u0111\u1ebfm ch\u00ednh x\u00e1c v\u00e0 k\u00edch ho\u1ea1t c\u00e1c thao t\u00e1c ti\u1ebfp theo nh\u01b0 r\u00f3t ch\u1ea5t l\u1ecfng ho\u1eb7c \u0111\u00f3ng n\u1eafp. C\u00e1c chai trong su\u1ed1t, di chuy\u1ec3n nhanh v\u00e0 c\u00f3 th\u1ec3 c\u00f3 nh\u1eefng sai l\u1ec7ch nh\u1ecf v\u1ec1 v\u1ecb tr\u00ed tr\u00ean b\u0103ng t\u1ea3i.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Quy tr\u00ecnh ph\u00e2n t\u00edch v\u00e0 lo\u1ea1i tr\u1eeb:<\/h4>\n\n\n\n<p>Ch\u00fang ta b\u1eaft \u0111\u1ea7u b\u1eb1ng c\u00e1ch \u00e1p d\u1ee5ng b\u1ed1n y\u1ebfu t\u1ed1 ch\u00ednh sau \u0111\u00e2y:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>Ch\u1ea5t li\u1ec7u<\/strong>: \u0110\u1ed1i t\u01b0\u1ee3ng c\u1ea7n ph\u00e1t hi\u1ec7n l\u00e0 nh\u1ef1a PET, m\u1ed9t ch\u1ea5t li\u1ec7u phi kim lo\u1ea1i. \u0110i\u1ec1u n\u00e0y ngay l\u1eadp t\u1ee9c lo\u1ea1i tr\u1eeb c\u00e1c c\u1ea3m bi\u1ebfn c\u1ea3m \u1ee9ng, v\u1ed1n ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch ph\u00e1t hi\u1ec7n nh\u1eefng thay \u0111\u1ed5i trong tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb do c\u00e1c v\u1eadt th\u1ec3 kim lo\u1ea1i g\u00e2y ra.<\/li>\n\n\n\n<li><strong>M\u00f4i tr\u01b0\u1eddng<\/strong>: M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c t\u01b0\u01a1ng \u0111\u1ed1i s\u1ea1ch s\u1ebd nh\u01b0ng c\u00f3 th\u1ec3 c\u00f3 \u0111\u1ed9 \u1ea9m ho\u1eb7c ph\u1ea3i r\u1eeda s\u1ea1ch thi\u1ebft b\u1ecb. T\u1ed1c \u0111\u1ed9 l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t.<\/li>\n\n\n\n<li><strong>Kho\u1ea3ng c\u00e1ch<\/strong>: C\u1ea3m bi\u1ebfn s\u1ebd \u0111\u01b0\u1ee3c l\u1eafp \u0111\u1eb7t g\u1ea7n b\u0103ng t\u1ea3i, v\u1edbi kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn kho\u1ea3ng 100\u2013300 mm.<\/li>\n\n\n\n<li><strong>\u0110\u1ed9 ch\u00ednh x\u00e1c<\/strong>: Ch\u00fang ta c\u1ea7n m\u1ed9t t\u00edn hi\u1ec7u b\u1eadt\/t\u1eaft \u0111\u00e1ng tin c\u1eady cho t\u1eebng chai.<\/li>\n<\/ol>\n\n\n\n<p>V\u00ec kh\u00f4ng th\u1ec3 s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn c\u1ea3m \u1ee9ng, ch\u00fang ta s\u1ebd xem x\u00e9t c\u00e1c ph\u01b0\u01a1ng \u00e1n kh\u00e1c. V\u1ec1 m\u1eb7t k\u1ef9 thu\u1eadt, c\u1ea3m bi\u1ebfn \u0111i\u1ec7n dung c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c nh\u1ef1a v\u00e0 ch\u1ea5t l\u1ecfng b\u00ean trong, nh\u01b0ng kho\u1ea3ng c\u00e1ch c\u1ea3m bi\u1ebfn h\u1ea1n ch\u1ebf v\u00e0 kh\u1ea3 n\u0103ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 \u1ea9m m\u00f4i tr\u01b0\u1eddng xung quanh s\u1ebd khi\u1ebfn n\u00f3 tr\u1edf th\u00e0nh m\u1ed9t l\u1ef1a ch\u1ecdn k\u00e9m tin c\u1eady h\u01a1n trong m\u00f4i tr\u01b0\u1eddng c\u00f3 t\u1ed1c \u0111\u1ed9 cao v\u00e0 c\u00f3 th\u1ec3 \u1ea9m \u01b0\u1edbt. C\u1ea3m bi\u1ebfn si\u00eau \u00e2m c\u00f3 th\u1ec3 hi\u1ec7u qu\u1ea3 v\u00ec n\u00f3 kh\u00f4ng b\u1ecb \u1ea3nh h\u01b0\u1edfng b\u1edfi \u0111\u1ed9 trong su\u1ed1t. Tuy nhi\u00ean, do t\u1ed1c \u0111\u1ed9 truy\u1ec1n s\u00f3ng \u00e2m, lo\u1ea1i c\u1ea3m bi\u1ebfn n\u00e0y th\u01b0\u1eddng ch\u1eadm h\u01a1n so v\u1edbi c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n v\u00e0 kh\u00f4ng ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng t\u1ed1c \u0111\u1ed9 cao.<\/p>\n\n\n\n<p>K\u1ebft qu\u1ea3 h\u1ee3p l\u00fd c\u1ee7a qu\u00e1 tr\u00ecnh n\u00e0y l\u00e0 c\u00e1c c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n. Tuy nhi\u00ean, ngay c\u1ea3 trong d\u00f2ng s\u1ea3n ph\u1ea9m n\u00e0y, ng\u01b0\u1eddi ta c\u0169ng ph\u1ea3i \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh. M\u1ed9t c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n khu\u1ebfch t\u00e1n \u0111i\u1ec3n h\u00ecnh, v\u1ed1n ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng tr\u1ef1c ti\u1ebfp t\u1eeb m\u1ee5c ti\u00eau, c\u00f3 l\u1ebd s\u1ebd kh\u00f4ng ho\u1ea1t \u0111\u1ed9ng \u0111\u01b0\u1ee3c. Ph\u1ea7n l\u1edbn \u00e1nh s\u00e1ng s\u1ebd b\u1ecb t\u00e1n x\u1ea1 ho\u1eb7c truy\u1ec1n qua b\u1ec1 m\u1eb7t trong su\u1ed1t, cong c\u1ee7a chai PET, d\u1eabn \u0111\u1ebfn vi\u1ec7c thu \u0111\u01b0\u1ee3c t\u00edn hi\u1ec7u kh\u00f4ng \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Gi\u1ea3i ph\u00e1p t\u1ed1i \u01b0u:<\/h4>\n\n\n\n<p>C\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c l\u00e0 gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 nh\u1ea5t. C\u1ea5u h\u00ecnh n\u00e0y s\u1eed d\u1ee5ng m\u1ed9t c\u1ea3m bi\u1ebfn v\u00e0 m\u1ed9t g\u01b0\u01a1ng ph\u1ea3n x\u1ea1 ri\u00eang bi\u1ec7t. C\u1ea3m bi\u1ebfn ph\u00e1t ra m\u1ed9t ch\u00f9m \u00e1nh s\u00e1ng \u0111\u01b0\u1ee3c ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i c\u1ea3m bi\u1ebfn. Khi m\u1ed9t chai PET \u0111i qua gi\u1eefa hai thi\u1ebft b\u1ecb n\u00e0y, n\u00f3 s\u1ebd l\u00e0m gi\u00e1n \u0111o\u1ea1n ch\u00f9m \u00e1nh s\u00e1ng \u1ed5n \u0111\u1ecbnh n\u00e0y. S\u1ef1 kh\u00e1c bi\u1ec7t t\u1ed1i thi\u1ec3u v\u1ec1 \u0111\u1ed9 kh\u00fac x\u1ea1 v\u00e0 ph\u1ea3n x\u1ea1 \u00e1nh s\u00e1ng do v\u1eadt li\u1ec7u v\u00e0 b\u1ec1 m\u1eb7t cong c\u1ee7a chai g\u00e2y ra l\u00e0 \u0111\u1ee7 \u0111\u1ec3 l\u00e0m gi\u00e1n \u0111o\u1ea1n \u0111\u01b0\u1eddng \u0111i c\u1ee7a ch\u00f9m s\u00e1ng, t\u1ea1o ra t\u00edn hi\u1ec7u k\u00edch ho\u1ea1t r\u00f5 r\u00e0ng v\u00e0 t\u1ed1c \u0111\u1ed9 cao. \u0110\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 tin c\u1eady cao nh\u1ea5t khi ph\u00e1t hi\u1ec7n c\u00e1c v\u1eadt th\u1ec3 trong su\u1ed1t, m\u1ed9t m\u00f4 h\u00ecnh c\u00f3 b\u1ed9 l\u1ecdc ph\u00e2n c\u1ef1c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 lo\u1ea1i b\u1ecf ph\u1ea3n x\u1ea1 t\u1eeb c\u00e1c b\u1ec1 m\u1eb7t s\u00e1ng b\u00f3ng kh\u00e1c ngo\u00e0i t\u1ea5m ph\u1ea3n x\u1ea1 chuy\u00ean d\u1ee5ng.<\/p>\n\n\n\n<p>C\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 h\u1ec7 th\u1ed1ng n\u00e0y, b\u1eaft \u0111\u1ea7u t\u1eeb v\u1ea5n \u0111\u1ec1 r\u1ed3i \u0111\u1ebfn c\u00f4ng ngh\u1ec7, \u0111\u1ea3m b\u1ea3o vi\u1ec7c l\u1ef1a ch\u1ecdn m\u1ed9t c\u1ea3m bi\u1ebfn kh\u00f4ng ch\u1ec9 \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c ch\u1ee9c n\u0103ng m\u00e0 c\u00f2n \u0111\u01b0\u1ee3c t\u1ed1i \u01b0u h\u00f3a \u0111\u1ec3 gi\u1ea3i quy\u1ebft nh\u1eefng th\u00e1ch th\u1ee9c c\u1ee5 th\u1ec3 c\u1ee7a \u1ee9ng d\u1ee5ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">T\u1eeb c\u1ea3m bi\u1ebfn \u0111\u1ebfn bi\u1ec3u t\u01b0\u1ee3ng: C\u00e1ch th\u1ec3 hi\u1ec7n s\u01a1 \u0111\u1ed3 ch\u00ednh x\u00e1c<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"381\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol6-1024x381.webp\" alt=\"Bi\u1ec3u t\u01b0\u1ee3ng c\u1ea3m bi\u1ebfn kho\u1ea3ng c\u00e1ch\" class=\"wp-image-7736\" style=\"width:512px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol6-1024x381.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol6-300x112.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol6-768x286.webp 768w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol6-1536x572.webp 1536w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol6-2048x762.webp 2048w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Sau khi \u0111\u00e3 ch\u1ecdn c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n ph\u1ea3n x\u1ea1, b\u01b0\u1edbc ti\u1ebfp theo l\u00e0 m\u00f4 ph\u1ecfng ch\u00ednh x\u00e1c c\u1ea3m bi\u1ebfn \u0111\u00f3 tr\u00ean s\u01a1 \u0111\u1ed3 \u0111i\u1ec7n. \u0110\u00e2y kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 m\u1ed9t b\u00e0i t\u1eadp v\u1ebd; k\u00fd hi\u1ec7u tr\u00ean s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t ph\u01b0\u01a1ng th\u1ee9c truy\u1ec1n \u0111\u1ea1t k\u1ef9 thu\u1eadt ch\u00ednh x\u00e1c, cung c\u1ea5p th\u00f4ng tin cho b\u1ea5t k\u1ef3 ai tham gia l\u1eafp \u0111\u1eb7t, kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 ho\u1eb7c b\u1ea3o tr\u00ec h\u1ec7 th\u1ed1ng. C\u00e1c k\u00fd hi\u1ec7u n\u00e0y tu\u00e2n theo ng\u00f4n ng\u1eef chung \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ti\u00eau chu\u1ea9n qu\u1ed1c t\u1ebf IEC 60617.<\/p>\n\n\n\n<p>\u0110\u1ed1i v\u1edbi c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n m\u00e0 ch\u00fang ta \u0111\u00e3 ch\u1ecdn, k\u00fd hi\u1ec7u \u0111\u01a1n gi\u1ea3n nh\u1ea5t l\u00e0 h\u00ecnh vu\u00f4ng, t\u01b0\u1ee3ng tr\u01b0ng cho v\u1ecf b\u1ecdc c\u1ee7a thi\u1ebft b\u1ecb. C\u00e1c h\u00ecnh \u1ea3nh b\u00ean trong bi\u1ec3u th\u1ecb ch\u1ee9c n\u0103ng c\u1ee7a thi\u1ebft b\u1ecb. T\u1ea1i \u0111\u00e2y, b\u1ed9 ph\u00e1t s\u00e1ng v\u00e0 b\u1ed9 thu s\u00e1ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n b\u1eb1ng c\u00e1c k\u00fd hi\u1ec7u, c\u00f9ng v\u1edbi m\u1ed9t bi\u1ec3u t\u01b0\u1ee3ng cho bi\u1ebft \u0111\u00e2y l\u00e0 lo\u1ea1i c\u1ea3m bi\u1ebfn ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c.<\/p>\n\n\n\n<p>Tuy nhi\u00ean, bi\u1ec3u t\u01b0\u1ee3ng n\u00e0y kh\u00f4ng ch\u1ec9 n\u00ean \u0111\u1ea1i di\u1ec7n cho c\u00f4ng ngh\u1ec7 c\u1ea3m bi\u1ebfn. C\u1ea7n ph\u1ea3i ch\u1ec9 \u0111\u1ecbnh hai th\u00f4ng s\u1ed1 \u0111i\u1ec7n quan tr\u1ecdng: lo\u1ea1i \u0111\u1ea7u ra (PNP hay NPN) v\u00e0 tr\u1ea1ng th\u00e1i logic m\u1eb7c \u0111\u1ecbnh (NO hay NC).<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">PNP so v\u1edbi NPN: \u0110i\u1ec1u n\u00e0y x\u00e1c \u0111\u1ecbnh c\u00e1ch t\u00edn hi\u1ec7u \u0111\u1ea7u ra c\u1ee7a c\u1ea3m bi\u1ebfn \u0111i\u1ec1u khi\u1ec3n t\u1ea3i \u0111i\u1ec7n.<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Th\u01b0\u1eddng y\u00eau c\u1ea7u<\/strong>: \u0110\u1ea7u ra c\u1ee7a c\u1ea3m bi\u1ebfn chuy\u1ec3n \u0111i\u1ec7n \u00e1p d\u01b0\u01a1ng (+) \u0111\u1ebfn t\u1ea3i (v\u00ed d\u1ee5: \u0111\u1ea7u v\u00e0o PLC). Khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, \u0111\u1ea7u ra n\u00e0y s\u1ebd k\u1ebft n\u1ed1i t\u1ea3i v\u1edbi ngu\u1ed3n \u0111i\u1ec7n +24 VDC. \u0110\u00e2y l\u00e0 ti\u00eau chu\u1ea9n ph\u1ed5 bi\u1ebfn nh\u1ea5t \u1edf ch\u00e2u \u00c2u v\u00e0 B\u1eafc M\u1ef9.<\/li>\n\n\n\n<li><strong>PLC ch\u00e2u \u00c1:<\/strong>: \u0110\u1ea7u ra c\u1ee7a c\u1ea3m bi\u1ebfn s\u1ebd chuy\u1ec3n m\u1ea1ch k\u1ebft n\u1ed1i c\u1ef1c \u00e2m (-) ho\u1eb7c 0V \u0111\u1ebfn t\u1ea3i. Khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t, \u0111\u1ea7u ra s\u1ebd k\u1ebft n\u1ed1i t\u1ea3i v\u1edbi \u0111\u01b0\u1eddng 0V (GND). C\u00e1ch n\u00e0y ph\u1ed5 bi\u1ebfn h\u01a1n \u1edf ch\u00e2u \u00c1.<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">NO (M\u1edf th\u01b0\u1eddng) so v\u1edbi NC (\u0110\u00f3ng th\u01b0\u1eddng): \u0110i\u1ec1u n\u00e0y x\u00e1c \u0111\u1ecbnh tr\u1ea1ng th\u00e1i \u0111\u1ea7u ra c\u1ee7a c\u1ea3m bi\u1ebfn khi n\u00f3 kh\u00f4ng ph\u00e1t hi\u1ec7n \u0111\u01b0\u1ee3c \u0111\u1ed1i t\u01b0\u1ee3ng.<\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Th\u01b0\u1eddng m\u1edf (NO)<\/strong>: C\u00f4ng t\u1eafc \u0111\u1ea7u ra \u1edf tr\u1ea1ng th\u00e1i m\u1edf theo m\u1eb7c \u0111\u1ecbnh. Khi c\u1ea3m bi\u1ebfn ph\u00e1t hi\u1ec7n chai PET, c\u00f4ng t\u1eafc s\u1ebd \u0111\u00f3ng l\u1ea1i v\u00e0 g\u1eedi \u0111i m\u1ed9t t\u00edn hi\u1ec7u. \u0110i\u1ec1u n\u00e0y r\u1ea5t l\u00fd t\u01b0\u1edfng cho c\u00e1c t\u00e1c v\u1ee5 ph\u00e1t hi\u1ec7n s\u1ef1 hi\u1ec7n di\u1ec7n.<\/li>\n\n\n\n<li><strong>Th\u01b0\u1eddng \u0111\u00f3ng (NC)<\/strong>: C\u00f4ng t\u1eafc \u0111\u1ea7u ra \u0111\u01b0\u1ee3c \u0111\u00f3ng theo m\u1eb7c \u0111\u1ecbnh, cung c\u1ea5p t\u00edn hi\u1ec7u li\u00ean t\u1ee5c. Khi c\u1ea3m bi\u1ebfn ph\u00e1t hi\u1ec7n chai, c\u00f4ng t\u1eafc s\u1ebd m\u1edf ra v\u00e0 t\u00edn hi\u1ec7u b\u1ecb ng\u1eaft. T\u00ednh n\u0103ng n\u00e0y c\u00f3 th\u1ec3 h\u1eefu \u00edch cho c\u00e1c \u1ee9ng d\u1ee5ng an to\u00e0n d\u1ef1 ph\u00f2ng, v\u00ec tr\u01b0\u1eddng h\u1ee3p d\u00e2y b\u1ecb \u0111\u1ee9t s\u1ebd t\u1ea1o ra tr\u1ea1ng th\u00e1i t\u01b0\u01a1ng t\u1ef1 nh\u01b0 khi ph\u00e1t hi\u1ec7n v\u1eadt th\u1ec3.<\/li>\n<\/ul>\n\n\n\n<p>Trong \u1ee9ng d\u1ee5ng chai PET c\u1ee7a ch\u00fang t\u00f4i, ch\u00fang t\u00f4i ph\u1ea3i \u0111\u1ebfm s\u1ed1 l\u01b0\u1ee3ng chai khi ch\u00fang \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o. Do \u0111\u00f3, c\u00f4ng t\u1eafc th\u01b0\u1eddng m\u1edf (NO) l\u00e0 l\u1ef1a ch\u1ecdn ph\u00f9 h\u1ee3p. \u0110\u1ea7u ra PNP s\u1ebd l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn \u0111i\u1ec3n h\u00ecnh n\u1ebfu h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n l\u00e0 PLC hi\u1ec7n \u0111\u1ea1i \u1edf B\u1eafc M\u1ef9.<\/p>\n\n\n\n<p>V\u00ec v\u1eady, ch\u00fang t\u00f4i \u0111\u00e3 quy\u1ebft \u0111\u1ecbnh s\u1eed d\u1ee5ng c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c, \u0111\u1ea7u ra PNP, logic th\u01b0\u1eddng m\u1edf (NO). C\u00e1c ch\u00fa th\u00edch nh\u1ecf s\u1ebd \u0111\u01b0\u1ee3c th\u00eam v\u00e0o k\u00fd hi\u1ec7u s\u01a1 \u0111\u1ed3 \u0111\u1ec3 th\u1ec3 hi\u1ec7n \u0111\u1ea7y \u0111\u1ee7 c\u00e1c th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt n\u00e0y, nh\u1eb1m \u0111\u1ea3m b\u1ea3o kh\u00f4ng c\u00f3 b\u1ea5t k\u1ef3 s\u1ef1 m\u01a1 h\u1ed3 n\u00e0o tr\u00ean s\u01a1 \u0111\u1ed3 m\u1ea1ch.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">C\u00e1c k\u00fd hi\u1ec7u ph\u1ed5 bi\u1ebfn c\u1ee7a c\u1ea3m bi\u1ebfn kho\u1ea3ng c\u00e1ch v\u00e0 \u00fd ngh\u0129a c\u1ee7a ch\u00fang<\/h2>\n\n\n\n<p>\u0110\u1ec3 \u0111\u1ea3m b\u1ea3o t\u00ednh r\u00f5 r\u00e0ng trong thi\u1ebft k\u1ebf s\u01a1 \u0111\u1ed3 v\u00e0 s\u1ef1 giao ti\u1ebfp hi\u1ec7u qu\u1ea3 gi\u1eefa c\u00e1c nh\u00f3m k\u1ef9 s\u01b0, c\u00e1c k\u00fd hi\u1ec7u ti\u00eau chu\u1ea9n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 bi\u1ec3u th\u1ecb c\u00e1c lo\u1ea1i c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn v\u00e0 r\u01a1le kh\u00e1c nhau. C\u00e1c k\u00fd hi\u1ec7u n\u00e0y, tu\u00e2n theo ti\u00eau chu\u1ea9n IEC 60617, m\u00e3 h\u00f3a tr\u1ef1c quan ch\u1ee9c n\u0103ng v\u00e0 c\u1ea5u h\u00ecnh c\u1ee7a c\u1ea3m bi\u1ebfn m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng, kh\u00f4ng g\u00e2y nh\u1ea7m l\u1eabn. D\u01b0\u1edbi \u0111\u00e2y l\u00e0 danh s\u00e1ch chi ti\u1ebft c\u00e1c k\u00fd hi\u1ec7u c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn nh\u1ea5t:<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>D\u1eabn xu\u1ea5t <\/strong><strong>C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn<\/strong>\n<ol class=\"wp-block-list\">\n<li><strong>Bi\u1ec3u t\u01b0\u1ee3ng<\/strong>: M\u1ed9t h\u00ecnh vu\u00f4ng (t\u01b0\u1ee3ng tr\u01b0ng cho v\u1ecf thi\u1ebft b\u1ecb) c\u00f3 m\u1ed9t cu\u1ed9n d\u00e2y ho\u1eb7c v\u00f2ng l\u1eb7p b\u00ean trong.<\/li>\n\n\n\n<li><strong>S\u1eed d\u1ee5ng<\/strong>: Ph\u00e1t hi\u1ec7n c\u00e1c v\u1eadt th\u1ec3 kim lo\u1ea1i b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng tr\u01b0\u1eddng \u0111i\u1ec7n t\u1eeb.<\/li>\n\n\n\n<li><strong>L\u01b0u \u00fd<\/strong>: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c ghi l\u00e0 \u201cInd\u201d ho\u1eb7c c\u00f3 bi\u1ec3u t\u01b0\u1ee3ng cu\u1ed9n c\u1ea3m.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>Dung l\u01b0\u1ee3ng <\/strong><strong>C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn<\/strong>\n<ol class=\"wp-block-list\">\n<li><strong>Bi\u1ec3u t\u01b0\u1ee3ng<\/strong>: M\u1ed9t h\u00ecnh vu\u00f4ng c\u00f3 hai \u0111\u01b0\u1eddng th\u1eb3ng song song (t\u01b0\u1ee3ng tr\u01b0ng cho c\u00e1c b\u1ea3n c\u1ef1c c\u1ee7a t\u1ee5 \u0111i\u1ec7n) ho\u1eb7c m\u1ed9t h\u00ecnh ch\u1eef nh\u1eadt kh\u00f4ng c\u00f3 c\u1ea1nh \u0111\u00f3ng.<\/li>\n\n\n\n<li><strong>C\u00e1ch s\u1eed d\u1ee5ng: <\/strong>Ph\u00e1t hi\u1ec7n c\u1ea3 c\u00e1c v\u1eadt th\u1ec3 kim lo\u1ea1i v\u00e0 phi kim lo\u1ea1i. Vui l\u00f2ng \u0111\u00ednh k\u00e8m \u1ea3nh ch\u1ee5p m\u00e0n h\u00ecnh n\u1ebfu qu\u00fd v\u1ecb c\u1ea7n th\u00eam th\u00f4ng tin chi ti\u1ebft.<\/li>\n\n\n\n<li><strong>L\u01b0u \u00fd<\/strong>: \u0110\u00f4i khi b\u00ean trong h\u00ecnh vu\u00f4ng c\u00f3 m\u1ed9t \u0111\u01b0\u1eddng ch\u1ea5m ho\u1eb7c m\u00e3 nh\u1eadn d\u1ea1ng v\u1eadt li\u1ec7u.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>C\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n<\/strong>\n<ol class=\"wp-block-list\">\n<li><strong>Bi\u1ec3u t\u01b0\u1ee3ng<\/strong>: M\u1ed9t h\u00ecnh vu\u00f4ng c\u00f3 m\u0169i t\u00ean (tia s\u00e1ng) h\u01b0\u1edbng v\u1ec1 ph\u00eda m\u1ee5c ti\u00eau.<\/li>\n\n\n\n<li><strong>Ph\u01b0\u01a1ng \u00e1n<\/strong>:\n<ol class=\"wp-block-list\">\n<li><strong>Ph\u1ed5 bi\u1ebfn<\/strong>: C\u1ea3 b\u1ed9 ph\u00e1t v\u00e0 b\u1ed9 thu \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p trong m\u1ed9t thi\u1ebft b\u1ecb.<\/li>\n\n\n\n<li><strong>T\u1ea7m trung (1\u20135 m\u00e9t):<\/strong>: M\u0169i t\u00ean ph\u1ea3n x\u1ea1 tr\u1edf l\u1ea1i t\u1eeb m\u1ed9t v\u1eadt ph\u1ea3n x\u1ea1 \u0111\u01b0\u1ee3c bi\u1ec3u t\u01b0\u1ee3ng h\u00f3a.<\/li>\n\n\n\n<li><strong>C\u1ea3m bi\u1ebfn xuy\u00ean tia<\/strong>: C\u00e1c k\u00fd hi\u1ec7u b\u1ed9 ph\u00e1t v\u00e0 b\u1ed9 thu ri\u00eang bi\u1ec7t \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi nhau b\u1eb1ng m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng ho\u1eb7c m\u0169i t\u00ean.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>S\u1eed d\u1ee5ng<\/strong>: Ph\u00e1t hi\u1ec7n s\u1ef1 hi\u1ec7n di\u1ec7n th\u00f4ng qua hi\u1ec7n t\u01b0\u1ee3ng \u00e1nh s\u00e1ng b\u1ecb gi\u00e1n \u0111o\u1ea1n.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>C\u1ea3m bi\u1ebfn si\u00eau \u00e2m<\/strong>\n<ol class=\"wp-block-list\">\n<li><strong>Bi\u1ec3u t\u01b0\u1ee3ng<\/strong>: M\u1ed9t h\u00ecnh vu\u00f4ng v\u1edbi c\u00e1c \u0111\u01b0\u1eddng cong (bi\u1ec3u th\u1ecb s\u00f3ng \u00e2m) ph\u00e1t ra t\u1eeb m\u1ed9t c\u1ea1nh.<\/li>\n\n\n\n<li><strong>S\u1eed d\u1ee5ng<\/strong>: Ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c m\u1ee5c ti\u00eau r\u00f5 r\u00e0ng ho\u1eb7c trong su\u1ed1t v\u00e0 vi\u1ec7c ph\u00e1t hi\u1ec7n \u1edf t\u1ea7m xa h\u01a1n.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>C\u1ea3m bi\u1ebfn <\/strong><strong>\u0110\u1ea7u ra<\/strong><strong> Lo\u1ea1i c\u1ef1c (PNP\/NPN)<\/strong>\n<ol class=\"wp-block-list\">\n<li><strong>Th\u01b0\u1eddng y\u00eau c\u1ea7u<\/strong>: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng m\u1ed9t h\u00ecnh tam gi\u00e1c h\u01b0\u1edbng l\u00ean ho\u1eb7c k\u00fd hi\u1ec7u \u201c+\u201d.<\/li>\n\n\n\n<li><strong>PLC ch\u00e2u \u00c1:<\/strong>: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c bi\u1ec3u th\u1ecb b\u1eb1ng h\u00ecnh tam gi\u00e1c h\u01b0\u1edbng xu\u1ed1ng ho\u1eb7c k\u00fd hi\u1ec7u \u201c-\u201c.<\/li>\n\n\n\n<li><strong>M\u1eb9o<\/strong>: C\u00e1c k\u00fd hi\u1ec7u n\u00e0y \u0111\u01b0\u1ee3c th\u00eam v\u00e0o g\u1ea7n k\u00fd hi\u1ec7u ho\u1eb7c \u0111\u01b0\u1ee3c ghi ch\u00fa trong b\u1ea3ng ch\u00fa gi\u1ea3i s\u01a1 \u0111\u1ed3 m\u1ea1ch.<\/li>\n<\/ol>\n<\/li>\n\n\n\n<li><strong>Tr\u1ea1ng th\u00e1i logic (KH\u00d4NG\/<\/strong><strong>NC<\/strong><strong>)<\/strong>\n<ol class=\"wp-block-list\">\n<li><strong>Th\u01b0\u1eddng m\u1edf (NO)<\/strong>: Tr\u1ea1ng th\u00e1i m\u1eb7c \u0111\u1ecbnh hi\u1ec3n th\u1ecb ti\u1ebfp \u0111i\u1ec3m \u1edf tr\u1ea1ng th\u00e1i m\u1edf; ti\u1ebfp \u0111i\u1ec3m s\u1ebd \u0111\u00f3ng l\u1ea1i khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t.<\/li>\n\n\n\n<li><strong>Th\u01b0\u1eddng \u0111\u00f3ng (NC)<\/strong>: Hi\u1ec3n th\u1ecb tr\u1ea1ng th\u00e1i ti\u1ebfp \u0111i\u1ec3m \u0111\u00f3ng; ti\u1ebfp \u0111i\u1ec3m s\u1ebd m\u1edf khi c\u1ea3m bi\u1ebfn \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t.<\/li>\n\n\n\n<li><strong>\u0110\u1ea1i di\u1ec7n<\/strong>: Th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ec3 hi\u1ec7n trong c\u00e1c s\u01a1 \u0111\u1ed3 ph\u1ee5, c\u00e1c kh\u1ed1i ti\u1ebfp \u0111i\u1ec3m ho\u1eb7c c\u00e1c ch\u00fa th\u00edch g\u1ea7n k\u00fd hi\u1ec7u c\u1ea3m bi\u1ebfn.<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1365\" height=\"768\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol.webp\" alt=\"Bi\u1ec3u t\u01b0\u1ee3ng c\u1ea3m bi\u1ebfn kho\u1ea3ng c\u00e1ch\" class=\"wp-image-7735\" style=\"object-fit:cover;width:512px;height:384px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol.webp 1365w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol-300x169.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol-1024x576.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol-768x432.webp 768w\" sizes=\"(max-width: 1365px) 100vw, 1365px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">B\u1ea3ng t\u00f3m t\u1eaft<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><td>Lo\u1ea1i c\u1ea3m bi\u1ebfn<\/td><td>\u0110\u1eb7c \u0111i\u1ec3m c\u1ee7a k\u00fd hi\u1ec7u<\/td><td>K\u00fd hi\u1ec7u th\u00f4ng d\u1ee5ng<\/td><\/tr><tr><td>D\u1eabn xu\u1ea5t<\/td><td>H\u00ecnh vu\u00f4ng c\u00f3 bi\u1ec3u t\u01b0\u1ee3ng cu\u1ed9n d\u00e2y<\/td><td>\u201cInd\u201d hay cu\u1ed9n c\u1ea3m<\/td><\/tr><tr><td>Dung l\u01b0\u1ee3ng<\/td><td>H\u00ecnh vu\u00f4ng c\u00f3 c\u00e1c \u0111\u01b0\u1eddng song song<\/td><td>\u201cN\u1eafp\u201d ho\u1eb7c t\u1ea5m<\/td><\/tr><tr><td>Quang \u0111i\u1ec7n<\/td><td>M\u0169i t\u00ean\/tia s\u00e1ng + m\u1ee5c ti\u00eau<\/td><td>Ph\u00e2n t\u00e1n \/ Ph\u1ea3n x\u1ea1 \/ Ch\u00f9m xuy\u00ean<\/td><\/tr><tr><td>Si\u00eau \u00e2m<\/td><td>H\u00ecnh vu\u00f4ng v\u1edbi s\u00f3ng \u00e2m cong<\/td><td>\u201cUS\u201d ho\u1eb7c bi\u1ec3u t\u01b0\u1ee3ng s\u00f3ng<\/td><\/tr><tr><td>Lo\u1ea1i \u0111\u1ea7u ra<\/td><td>H\u00ecnh tam gi\u00e1c (ph\u00eda tr\u00ean = PNP, ph\u00eda d\u01b0\u1edbi = NPN)<\/td><td>&#8220;+&#8221; \/ &#8220;-&#8220;<\/td><\/tr><tr><td>Tr\u1ea1ng th\u00e1i logic<\/td><td>Bi\u1ec3u t\u01b0\u1ee3ng li\u00ean h\u1ec7 (m\u1edf\/\u0111\u00f3ng)<\/td><td>Kh\u00f4ng \/ Kh\u00f4ng \u00e1p d\u1ee5ng<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Vi\u1ec7c hi\u1ec3u r\u00f5 v\u00e0 \u00e1p d\u1ee5ng ch\u00ednh x\u00e1c c\u00e1c k\u00fd hi\u1ec7u n\u00e0y s\u1ebd \u0111\u1ea3m b\u1ea3o r\u1eb1ng s\u01a1 \u0111\u1ed3 h\u1ec7 th\u1ed1ng tr\u1edf n\u00ean tr\u1ef1c quan, \u0111\u01b0\u1ee3c hi\u1ec3u tr\u00ean ph\u1ea1m vi qu\u1ed1c t\u1ebf v\u00e0 s\u1eb5n s\u00e0ng cho vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 ho\u1eb7c m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft n\u1ed1i d\u00e2y v\u1edbi PLC: V\u1ebd s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n<\/h2>\n\n\n\n<p>Bi\u1ec3u t\u01b0\u1ee3ng s\u01a1 \u0111\u1ed3 l\u00e0 m\u1ed9t h\u00ecnh \u1ea3nh tr\u1eebu t\u01b0\u1ee3ng; m\u1ee5c \u0111\u00edch th\u1ef1c s\u1ef1 c\u1ee7a n\u00f3 l\u00e0 h\u01b0\u1edbng d\u1eabn vi\u1ec7c n\u1ed1i d\u00e2y th\u1ef1c t\u1ebf c\u1ee7a m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n. Vi\u1ec7c t\u00edch h\u1ee3p c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n PNP, NO c\u1ee7a ch\u00fang t\u00f4i v\u1edbi m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o c\u1ee7a B\u1ed9 \u0111i\u1ec1u khi\u1ec3n logic l\u1eadp tr\u00ecnh (PLC) l\u00e0 m\u1ed9t nhi\u1ec7m v\u1ee5 c\u01a1 b\u1ea3n trong t\u1ef1 \u0111\u1ed9ng h\u00f3a. M\u1ed9t c\u1ea3m bi\u1ebfn DC 3 d\u00e2y \u0111i\u1ec3n h\u00ecnh y\u00eau c\u1ea7u ba k\u1ebft n\u1ed1i: ngu\u1ed3n, d\u00e2y chung v\u00e0 t\u00edn hi\u1ec7u.<\/p>\n\n\n\n<p>M\u1ea1ch n\u00e0y bao g\u1ed3m ba th\u00e0nh ph\u1ea7n ch\u00ednh:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>B\u1ed9 ngu\u1ed3n 24 VDC<\/strong>: Cung c\u1ea5p \u0111i\u1ec7n \u00e1p ho\u1ea1t \u0111\u1ed9ng cho c\u1ea3m bi\u1ebfn v\u00e0 PLC. N\u00f3 c\u00f3 m\u1ed9t c\u1ef1c d\u01b0\u01a1ng (+) v\u00e0 m\u1ed9t c\u1ef1c 0V (c\u1ef1c chung).<\/li>\n\n\n\n<li><strong>C\u00e1i <\/strong><strong>C\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn<\/strong>: C\u00f3 ba d\u00e2y. \u0110\u1ed1i v\u1edbi c\u1ea3m bi\u1ebfn PNP c\u1ee7a ch\u00fang ta, c\u00e1c d\u00e2y n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u b\u1eb1ng m\u00e0u:\n<ul class=\"wp-block-list\">\n<li><strong>M\u00e0u n\u00e2u<\/strong>: +24 VDC (Ngu\u1ed3n v\u00e0o)<\/li>\n\n\n\n<li><strong>Xanh d\u01b0\u01a1ng<\/strong>: 0V (Chung)<\/li>\n\n\n\n<li><strong>M\u00e0u \u0111en<\/strong>: \u0110\u1ea7u ra t\u00edn hi\u1ec7u<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>C\u00e1i <\/strong><strong>PLC<\/strong><strong>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt \u0111\u1ea7u v\u00e0o<\/strong><strong> M\u00f4-\u0111un<\/strong>: M\u00f4-\u0111un n\u00e0y c\u00f3 nhi\u1ec1u \u0111\u1ea7u v\u00e0o v\u00e0 m\u1ed9t \u0111\u1ea7u chung. N\u00f3 \u0111\u1ecdc tr\u1ea1ng th\u00e1i \u0111i\u1ec7n \u00e1p c\u1ee7a d\u00e2y t\u00edn hi\u1ec7u \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh c\u1ea3m bi\u1ebfn \u0111ang \u1edf tr\u1ea1ng th\u00e1i \u201cb\u1eadt\u201d hay \u201ct\u1eaft\u201d.\u201d<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">C\u00e1ch n\u1ed1i d\u00e2y cho c\u1ea3m bi\u1ebfn PNP (lo\u1ea1i c\u1ef1c d\u01b0\u01a1ng):<\/h3>\n\n\n\n<p>Trong c\u1ea5u h\u00ecnh PNP, c\u1ea3m bi\u1ebfn s\u1ebd \u201ccung c\u1ea5p\u201d ho\u1eb7c \u0111\u01b0a ra m\u1ed9t \u0111i\u1ec7n \u00e1p d\u01b0\u01a1ng v\u00e0o \u0111\u1ea7u v\u00e0o c\u1ee7a PLC khi ph\u00e1t hi\u1ec7n \u0111\u1ed1i t\u01b0\u1ee3ng. C\u00e1ch n\u1ed1i d\u00e2y nh\u01b0 sau:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>C\u1ea3m bi\u1ebfn <strong>M\u00e0u n\u00e2u<\/strong> D\u00e2y \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi c\u1ef1c +24 VDC c\u1ee7a b\u1ed9 ngu\u1ed3n.<\/li>\n\n\n\n<li>C\u1ea3m bi\u1ebfn <strong>Xanh d\u01b0\u01a1ng<\/strong> D\u00e2y \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi c\u1ef1c 0V c\u1ee7a b\u1ed9 ngu\u1ed3n.<\/li>\n\n\n\n<li>C\u1ea3m bi\u1ebfn <strong>M\u00e0u \u0111en<\/strong> D\u00e2y t\u00edn hi\u1ec7u \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t \u0111\u1ea7u n\u1ed1i \u0111\u1ea7u v\u00e0o c\u1ee5 th\u1ec3 tr\u00ean PLC (v\u00ed d\u1ee5: I0.0).<\/li>\n\n\n\n<li>M\u00f4-\u0111un \u0111\u1ea7u v\u00e0o c\u1ee7a PLC <strong>Ph\u1ed5 bi\u1ebfn<\/strong> \u0110\u1ea7u n\u1ed1i \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi \u0111\u01b0\u1eddng 0V c\u1ee7a b\u1ed9 ngu\u1ed3n \u0111\u1ec3 ho\u00e0n th\u00e0nh m\u1ea1ch \u0111i\u1ec7n.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Bi\u1ec3u di\u1ec5n s\u01a1 \u0111\u1ed3 d\u00f2ng \u0111i\u1ec7n (PNP):<\/h3>\n\n\n\n<pre class=\"wp-block-code\"><code><code>+24VDC ----------------------&gt; D\u00e2y n\u00e2u (C\u1ea3m bi\u1ebfn)\n                             |\n                             V\n                          [C\u1ea3m bi\u1ebfn]\n                             |\n\u0110\u1ea7u v\u00e0o PLC (I0.0)  D\u00e2y m\u00e0u xanh d\u01b0\u01a1ng (C\u1ea3m bi\u1ebfn)\n                             |\n                             V\n                          [Chung PLC]<\/code>\n<\/code><\/pre>\n\n\n\n<p>Khi ph\u00e1t hi\u1ec7n chai PET, c\u00f4ng t\u1eafc b\u00ean trong c\u1ea3m bi\u1ebfn PNP s\u1ebd k\u1ebft n\u1ed1i <strong>N\u00e2u (+24V)<\/strong> d\u00e2y n\u1ed1i v\u1edbi <strong>\u0110en (T\u00edn hi\u1ec7u)<\/strong> d\u00e2y. \u0110i\u1ec1u n\u00e0y s\u1ebd g\u1eedi t\u00edn hi\u1ec7u +24 VDC \u0111\u1ebfn \u0111\u1ea7u v\u00e0o c\u1ee7a PLC, v\u00e0 b\u1ed9 x\u1eed l\u00fd c\u1ee7a PLC s\u1ebd ghi nh\u1eadn t\u00edn hi\u1ec7u n\u00e0y l\u00e0 gi\u00e1 tr\u1ecb logic \u201c1\u201d ho\u1eb7c tr\u1ea1ng th\u00e1i \u201ccao\u201d.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">So s\u00e1nh v\u1edbi c\u00e1ch n\u1ed1i d\u00e2y NPN (lo\u1ea1i h\u00fat):<\/h3>\n\n\n\n<p>\u0110\u1ec3 d\u1ec5 hi\u1ec3u h\u01a1n, c\u1ea3m bi\u1ebfn NPN ho\u1ea1t \u0111\u1ed9ng theo c\u01a1 ch\u1ebf ng\u01b0\u1ee3c l\u1ea1i. N\u00f3 \u201ch\u00fat\u201d d\u00f2ng \u0111i\u1ec7n t\u1eeb \u0111\u1ea7u v\u00e0o PLC xu\u1ed1ng \u0111\u1ea5t. \u0110\u1ea7u chung c\u1ee7a \u0111\u1ea7u v\u00e0o PLC s\u1ebd \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi +24VDC, v\u00e0 \u0111\u1ea7u ra c\u1ee7a c\u1ea3m bi\u1ebfn s\u1ebd k\u00e9o c\u1ef1c \u0111\u1ea7u v\u00e0o xu\u1ed1ng 0V khi \u0111\u01b0\u1ee3c k\u00edch ho\u1ea1t. Vi\u1ec7c hi\u1ec3u \u0111\u00fang k\u00fd hi\u1ec7u PNP\/NPN tr\u00ean s\u01a1 \u0111\u1ed3 m\u1ea1ch l\u00e0 v\u00f4 c\u00f9ng quan tr\u1ecdng \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o vi\u1ec7c n\u1ed1i d\u00e2y ho\u1ea1t \u0111\u1ed9ng ch\u00ednh x\u00e1c v\u00e0 ng\u0103n ng\u1eeba h\u01b0 h\u1ecfng c\u00e1c linh ki\u1ec7n.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol3.webp\" alt=\"Bi\u1ec3u t\u01b0\u1ee3ng c\u1ea3m bi\u1ebfn kho\u1ea3ng c\u00e1ch\" class=\"wp-image-7738\" style=\"object-fit:cover;width:512px;height:384px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol3.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol3-300x225.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol3-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">H\u1ec7 th\u1ed1ng th\u00f4ng minh: Gi\u1edbi thi\u1ec7u c\u1ea3m bi\u1ebfn IO-Link<\/h2>\n\n\n\n<p>Trong nhi\u1ec1u th\u1eadp k\u1ef7 qua, t\u00edn hi\u1ec7u \u0111\u1ea7u ra c\u1ee7a c\u00f4ng t\u1eafc ti\u1ec7m c\u1eadn lu\u00f4n l\u00e0 t\u00edn hi\u1ec7u nh\u1ecb ph\u00e2n: B\u1eacT ho\u1eb7c T\u1eaeT. \u0110i\u1ec1u n\u00e0y ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 trong c\u00e1c t\u00e1c v\u1ee5 \u0111i\u1ec1u khi\u1ec3n \u0111\u01a1n gi\u1ea3n, nh\u01b0ng quy tr\u00ecnh s\u1ea3n xu\u1ea5t hi\u1ec7n nay \u0111\u00f2i h\u1ecfi th\u00eam d\u1eef li\u1ec7u, t\u00ednh linh ho\u1ea1t v\u00e0 kh\u1ea3 n\u0103ng th\u00f4ng minh tr\u00ean t\u1ea5t c\u1ea3 c\u00e1c c\u1ea5p \u0111\u1ed9 c\u1ee7a d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t. \u0110\u00e2y ch\u00ednh l\u00e0 l\u0129nh v\u1ef1c m\u00e0 IO-Link ph\u00e1t huy t\u00e1c d\u1ee5ng.<\/p>\n\n\n\n<p>IO-Link kh\u00f4ng ph\u1ea3i l\u00e0 m\u1ed9t m\u1ea1ng bus c\u00f4ng nghi\u1ec7p th\u1ee9 hai nh\u01b0 EtherNet\/IP hay Profinet. M\u1ed9t giao th\u1ee9c truy\u1ec1n th\u00f4ng \u0111i\u1ec3m-\u0111i\u1ec3m \u0111\u01b0\u1ee3c ti\u00eau chu\u1ea9n h\u00f3a (IEC 61131-9) cho ph\u00e9p m\u1ed9t c\u00e1p c\u1ea3m bi\u1ebfn 3 d\u00e2y th\u00f4ng th\u01b0\u1eddng th\u1ef1c hi\u1ec7n nhi\u1ec1u ch\u1ee9c n\u0103ng h\u01a1n h\u1eb3n so v\u1edbi vi\u1ec7c ch\u1ec9 truy\u1ec1n t\u00edn hi\u1ec7u b\u1eadt\/t\u1eaft \u0111\u01a1n thu\u1ea7n. Giao th\u1ee9c n\u00e0y thi\u1ebft l\u1eadp m\u1ed9t giao di\u1ec7n truy\u1ec1n th\u00f4ng \u0111i\u1ec7n t\u1eed gi\u1eefa c\u1ea3m bi\u1ebfn v\u00e0 m\u00f4-\u0111un IO-Link Master, sau \u0111\u00f3 m\u00f4-\u0111un n\u00e0y s\u1ebd gi\u1ea3i m\u00e3 d\u1eef li\u1ec7u v\u00e0 truy\u1ec1n \u0111\u1ebfn PLC ch\u00ednh ho\u1eb7c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n.<\/p>\n\n\n\n<p>Gi\u00e1 tr\u1ecb m\u00e0 c\u00f4ng ngh\u1ec7 n\u00e0y mang l\u1ea1i cho \u1ee9ng d\u1ee5ng chai PET c\u1ee7a ch\u00fang t\u00f4i l\u00e0 r\u1ea5t \u0111\u00e1ng k\u1ec3:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>D\u1eef li\u1ec7u quy tr\u00ecnh<\/strong>: C\u1ea3m bi\u1ebfn IO-Link c\u00f3 kh\u1ea3 n\u0103ng truy\u1ec1n d\u1eef li\u1ec7u chi ti\u1ebft h\u01a1n so v\u1edbi ch\u1ec9 tr\u1ea1ng th\u00e1i B\u1eacT\/T\u1eaeT. V\u00ed d\u1ee5, c\u1ea3m bi\u1ebfn n\u00e0y c\u00f3 th\u1ec3 cung c\u1ea5p gi\u00e1 tr\u1ecb t\u01b0\u01a1ng t\u1ef1 v\u1ec1 c\u01b0\u1eddng \u0111\u1ed9 t\u00edn hi\u1ec7u, nh\u1edd \u0111\u00f3 h\u1ec7 th\u1ed1ng c\u00f3 th\u1ec3 ph\u00e1t hi\u1ec7n li\u1ec7u th\u1ea5u k\u00ednh c\u1ee7a c\u1ea3m bi\u1ebfn c\u00f3 \u0111ang d\u1ea7n b\u1ecb b\u00e1m b\u1ea9n hay kh\u00f4ng tr\u01b0\u1edbc khi t\u00ecnh tr\u1ea1ng tr\u1edf n\u00ean nghi\u00eam tr\u1ecdng.<\/li>\n\n\n\n<li><strong>Ch\u1ea9n \u0111o\u00e1n<\/strong>: C\u1ea3m bi\u1ebfn c\u00f3 kh\u1ea3 n\u0103ng ch\u1ee7 \u0111\u1ed9ng b\u00e1o c\u00e1o t\u00ecnh tr\u1ea1ng ho\u1ea1t \u0111\u1ed9ng v\u00e0 tr\u1ea1ng th\u00e1i c\u1ee7a m\u00ecnh. Thi\u1ebft b\u1ecb n\u00e0y c\u00f3 th\u1ec3 \u0111\u01b0a ra c\u1ea3nh b\u00e1o v\u1ec1 c\u00e1c s\u1ef1 c\u1ed1 nghi\u00eam tr\u1ecdng nh\u01b0 ch\u1eadp m\u1ea1ch, qu\u00e1 nhi\u1ec7t ho\u1eb7c c\u00e1c l\u1ed7i b\u00ean trong. \u0110i\u1ec1u n\u00e0y t\u1ea1o \u0111i\u1ec1u ki\u1ec7n cho vi\u1ec7c b\u1ea3o tr\u00ec d\u1ef1 \u0111o\u00e1n, nh\u1edd \u0111\u00f3 c\u00e1c k\u1ef9 thu\u1eadt vi\u00ean c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 tr\u01b0\u1edbc khi ch\u00fang d\u1eabn \u0111\u1ebfn th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng ngo\u00e0i k\u1ebf ho\u1ea1ch.<\/li>\n\n\n\n<li><strong>Thi\u1ebft l\u1eadp tham s\u1ed1<\/strong>: C\u00e1c thi\u1ebft l\u1eadp c\u1ea3m bi\u1ebfn t\u1eeb xa v\u00e0 trong th\u1eddi gian th\u1ef1c c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh tr\u1ef1c ti\u1ebfp tr\u00ean PLC. Khi d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t chuy\u1ec3n sang lo\u1ea1i chai c\u00f3 thi\u1ebft k\u1ebf h\u01a1i kh\u00e1c m\u1ed9t ch\u00fat v\u00e0 c\u1ea7n m\u1ee9c \u0111\u1ed9 nh\u1ea1y m\u1edbi, vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n ngay l\u1eadp t\u1ee9c th\u00f4ng qua ph\u1ea7n m\u1ec1m m\u00e0 kh\u00f4ng c\u1ea7n k\u1ef9 thu\u1eadt vi\u00ean ph\u1ea3i ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi c\u1ea3m bi\u1ebfn v\u00e0 d\u00f9ng tu\u1ed1c-n\u01a1-v\u00edt nh\u1ecf \u0111\u1ec3 \u0111i\u1ec1u ch\u1ec9nh m\u1ee9c \u0111\u1ed9 nh\u1ea1y. \u0110i\u1ec1u n\u00e0y \u0111\u1eb7c bi\u1ec7t quan tr\u1ecdng trong c\u00e1c \u1ee9ng d\u1ee5ng th\u01b0\u1eddng xuy\u00ean ph\u1ea3i thay \u0111\u1ed5i.<\/li>\n<\/ul>\n\n\n\n<p>C\u1ea3m bi\u1ebfn IO-Link kh\u00f4ng \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng k\u00fd hi\u1ec7u c\u1ea5p m\u1ea1ch truy\u1ec1n th\u1ed1ng trong s\u01a1 \u0111\u1ed3 ki\u1ebfn tr\u00fac h\u1ec7 th\u1ed1ng. Thay v\u00e0o \u0111\u00f3, n\u00f3 \u0111\u01b0\u1ee3c bi\u1ec3u di\u1ec5n d\u01b0\u1edbi d\u1ea1ng m\u1ed9t kh\u1ed1i c\u00f3 ch\u00fa th\u00edch, \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi m\u1ed9t thi\u1ebft b\u1ecb ch\u1ee7 IO-Link. Thi\u1ebft b\u1ecb ch\u1ee7 n\u00e0y \u0111\u00f3ng vai tr\u00f2 l\u00e0 c\u1ed5ng k\u1ebft n\u1ed1i, c\u00f3 ch\u1ee9c n\u0103ng t\u1ed5ng h\u1ee3p d\u1eef li\u1ec7u t\u1eeb nhi\u1ec1u c\u1ea3m bi\u1ebfn IO-Link v\u00e0 truy\u1ec1n d\u1eef li\u1ec7u \u0111\u00f3 qua m\u1ea1ng fieldbus \u0111\u1ebfn b\u1ed9 \u0111i\u1ec1u khi\u1ec3n trung t\u00e2m.<\/p>\n\n\n\n<p>Khi ch\u00fang ta n\u00e2ng c\u1ea5p c\u1ea3m bi\u1ebfn ph\u1ea3n x\u1ea1 ng\u01b0\u1ee3c l\u00ean th\u00e0nh thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 IO-Link, ch\u00fang ta bi\u1ebfn n\u00f3 th\u00e0nh m\u1ed9t ngu\u1ed3n d\u1eef li\u1ec7u th\u00f4ng minh, mang l\u1ea1i kh\u1ea3 n\u0103ng theo d\u00f5i v\u00e0 ki\u1ec3m so\u00e1t c\u1ea7n thi\u1ebft cho c\u00e1c d\u1ef1 \u00e1n C\u00f4ng nghi\u1ec7p 4.0, t\u1eeb \u0111\u00f3 t\u1ea1o ra m\u1ed9t h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i cao h\u01a1n, hi\u1ec7u qu\u1ea3 h\u01a1n v\u00e0 linh ho\u1ea1t h\u01a1n.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u1ebft lu\u1eadn: K\u1ebf ho\u1ea1ch chi ti\u1ebft v\u1ec1 \u0111\u1ed9 tin c\u1eady<\/h2>\n\n\n\n<p>Qu\u00e1 tr\u00ecnh \u0111i t\u1eeb m\u1ed9t v\u1ea5n \u0111\u1ec1 trong th\u1ef1c t\u1ebf \u2014 ch\u1eb3ng h\u1ea1n nh\u01b0 vi\u1ec7c ph\u00e1t hi\u1ec7n m\u1ed9t chai trong su\u1ed1t \u2014 \u0111\u1ebfn m\u1ed9t m\u1ea1ch \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c m\u00f4 t\u1ea3 \u0111\u1ea7y \u0111\u1ee7 l\u00e0 m\u1ed9t nguy\u00ean l\u00fd c\u01a1 b\u1ea3n c\u1ee7a khoa h\u1ecdc k\u1ef9 thu\u1eadt. \u0110i\u1ec1u n\u00e0y cho th\u1ea5y c\u00e1c k\u00fd hi\u1ec7u tr\u00ean s\u01a1 \u0111\u1ed3 m\u1ea1ch kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1eefng h\u00ecnh v\u1ebd ng\u1eabu nhi\u00ean; ch\u00fang l\u00e0 k\u1ebft qu\u1ea3 s\u00fac t\u00edch v\u00e0 m\u1ea1nh m\u1ebd c\u1ee7a m\u1ed9t qu\u00e1 tr\u00ecnh ph\u00e2n t\u00edch v\u00e0 l\u1ef1a ch\u1ecdn nghi\u00eam ng\u1eb7t.<\/p>\n\n\n\n<p>Khi lu\u00f4n b\u1eaft \u0111\u1ea7u t\u1eeb \u1ee9ng d\u1ee5ng th\u1ef1c t\u1ebf, b\u1ea1n c\u00f3 th\u1ec3 ch\u1eafc ch\u1eafn r\u1eb1ng c\u00f4ng ngh\u1ec7 m\u00e0 b\u1ea1n \u0111\u00e3 l\u1ef1a ch\u1ecdn l\u00e0 ph\u00f9 h\u1ee3p v\u1edbi m\u1ee5c \u0111\u00edch s\u1eed d\u1ee5ng. Th\u00f4ng qua m\u1ed9t nghi\u00ean c\u1ee9u \u0111i\u1ec3n h\u00ecnh, b\u1ea1n bi\u1ebfn c\u00e1c y\u00eau c\u1ea7u tr\u1eebu t\u01b0\u1ee3ng th\u00e0nh m\u1ed9t gi\u1ea3i ph\u00e1p c\u1ee5 th\u1ec3. Gi\u1ea3i ph\u00e1p \u0111\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c m\u00e3 h\u00f3a \u0111\u1ec3 m\u1ecdi ng\u01b0\u1eddi \u0111\u1ec1u c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c nh\u1edd vi\u1ec7c n\u1eafm v\u1eefng ng\u00f4n ng\u1eef k\u00fd hi\u1ec7u v\u00e0 c\u00e1c ti\u00eau chu\u1ea9n k\u1ebft n\u1ed1i nh\u01b0 PNP\/NPN. Cu\u1ed1i c\u00f9ng, khi h\u01b0\u1edbng t\u1edbi c\u00e1c c\u00f4ng ngh\u1ec7 nh\u01b0 IO-Link, b\u1ea1n s\u1ebd x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c nh\u1eefng h\u1ec7 th\u1ed1ng kh\u00f4ng ch\u1ec9 ho\u1ea1t \u0111\u1ed9ng hi\u1ec7u qu\u1ea3 ngay t\u1eeb h\u00f4m nay m\u00e0 c\u00f2n th\u00f4ng minh v\u00e0 linh ho\u1ea1t \u0111\u1ec3 \u0111\u00e1p \u1ee9ng nh\u1eefng th\u00e1ch th\u1ee9c trong t\u01b0\u01a1ng lai. Ch\u00ednh c\u00e1ch ti\u1ebfp c\u1eadn c\u00f3 h\u1ec7 th\u1ed1ng v\u00e0 to\u00e0n di\u1ec7n n\u00e0y m\u1edbi l\u00e0 l\u1ed9 tr\u00ecnh \u0111\u1ec3 thi\u1ebft k\u1ebf c\u00e1c h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f3 kh\u1ea3 n\u0103ng ph\u1ee5c h\u1ed3i, d\u1ec5 b\u1ea3o tr\u00ec v\u00e0 th\u1ef1c s\u1ef1 \u0111\u00e1ng tin c\u1eady.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OMCH: \u0110\u1ed1i t\u00e1c c\u1ee7a qu\u00fd v\u1ecb trong l\u0129nh v\u1ef1c t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p<\/h3>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"768\" src=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol2.webp\" alt=\"Bi\u1ec3u t\u01b0\u1ee3ng c\u1ea3m bi\u1ebfn kho\u1ea3ng c\u00e1ch\" class=\"wp-image-7737\" style=\"object-fit:cover;width:512px;height:384px\" srcset=\"https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol2.webp 1024w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol2-300x225.webp 300w, https:\/\/www.omch.com\/wp-content\/uploads\/2025\/08\/Proximity-Sensor-symbol2-768x576.webp 768w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>C\u1ea3 l\u00fd thuy\u1ebft v\u00e0 th\u1ef1c ti\u1ec5n \u0111\u1ec1u \u0111\u01b0\u1ee3c th\u1ea3o lu\u1eadn, v\u00e0 vi\u1ec7c l\u1ef1a ch\u1ecdn \u0111\u00fang c\u00e1c linh ki\u1ec7n l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t quy\u1ebft \u0111\u1ecbnh s\u1ef1 th\u00e0nh c\u00f4ng c\u1ee7a d\u1ef1 \u00e1n c\u1ee7a b\u1ea1n. M\u1ee9c \u0111\u1ed9 m\u00e0 m\u1ed9t s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t c\u00f3 th\u1ec3 chuy\u1ec3n h\u00f3a th\u00e0nh m\u1ed9t h\u1ec7 th\u1ed1ng ho\u1ea1t \u0111\u1ed9ng \u0111\u00e1ng tin c\u1eady ph\u1ee5 thu\u1ed9c v\u00e0o ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 t\u00ednh s\u1eb5n c\u00f3 c\u1ee7a ph\u1ea7n c\u1ee9ng m\u00e0 b\u1ea1n l\u1ef1a ch\u1ecdn. M\u1ed9t chu\u1ed7i cung \u1ee9ng v\u1eefng m\u1ea1nh v\u00e0 s\u1ef1 h\u1ed7 tr\u1ee3 k\u1ef9 thu\u1eadt chuy\u00ean nghi\u1ec7p c\u0169ng quan tr\u1ecdng kh\u00f4ng k\u00e9m so v\u1edbi b\u1ea3n thi\u1ebft k\u1ebf.<\/p>\n\n\n\n<p>Ch\u00fang t\u00f4i kh\u00f4ng ch\u1ec9 cung c\u1ea5p cho c\u00e1c \u0111\u1ed1i t\u00e1c ph\u00e2n ph\u1ed1i c\u1ee7a m\u00ecnh m\u1ed9t d\u00f2ng s\u1ea3n ph\u1ea9m c\u1ea3m bi\u1ebfn ti\u1ec7m c\u1eadn \u0111\u1ea7y \u0111\u1ee7, t\u1eeb c\u00e1c thi\u1ebft b\u1ecb c\u1ea3m \u1ee9ng \u0111i\u1ec7n t\u1eeb \u0111\u01a1n gi\u1ea3n cho \u0111\u1ebfn c\u00e1c m\u1eabu c\u1ea3m bi\u1ebfn quang \u0111i\u1ec7n ti\u00ean ti\u1ebfn c\u00f3 kh\u1ea3 n\u0103ng k\u1ebft n\u1ed1i IO-Link, m\u00e0 c\u00f2n cung c\u1ea5p chuy\u00ean m\u00f4n k\u1ef9 thu\u1eadt t\u1eeb OMCH (https:\/\/www.omch.com\/). Ch\u00fang t\u00f4i hi\u1ec3u r\u1eb1ng c\u00e1c \u0111\u1ed1i t\u00e1c c\u1ee7a ch\u00fang t\u00f4i kh\u00f4ng ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 v\u1eadn chuy\u1ec3n h\u00e0ng h\u00f3a, m\u00e0 c\u00f2n \u0111ang gi\u1ea3i quy\u1ebft nh\u1eefng v\u1ea5n \u0111\u1ec1 t\u1ef1 \u0111\u1ed9ng h\u00f3a ph\u1ee9c t\u1ea1p cho kh\u00e1ch h\u00e0ng c\u1ee7a h\u1ecd.<\/p>\n\n\n\n<p>D\u00f9 qu\u00fd v\u1ecb l\u00e0 nh\u00e0 s\u1ea3n xu\u1ea5t thi\u1ebft b\u1ecb \u0111ang n\u00e2ng c\u1ea5p d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t hay l\u00e0 nh\u00e0 t\u00edch h\u1ee3p h\u1ec7 th\u1ed1ng \u0111ang thi\u1ebft k\u1ebf m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n m\u1edbi, ch\u00fang t\u00f4i \u0111\u1ec1u cung c\u1ea5p ngu\u1ed3n cung \u1ee9ng tr\u1ecdn g\u00f3i c\u00e1c linh ki\u1ec7n t\u1ef1 \u0111\u1ed9ng h\u00f3a \u0111\u00e1ng tin c\u1eady. Ch\u00fang t\u00f4i cam k\u1ebft mang \u0111\u1ebfn cho qu\u00fd v\u1ecb nh\u1eefng gi\u1ea3i ph\u00e1p hi\u1ec7u qu\u1ea3 v\u00e0 ti\u1ebft ki\u1ec7m nh\u1edd c\u00e1c linh ki\u1ec7n c\u00f3 hi\u1ec7u su\u1ea5t cao c\u00f9ng m\u1ed1i quan h\u1ec7 h\u1ee3p t\u00e1c mang l\u1ea1i s\u1ef1 tin c\u1eady.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u0110\u1ed9 tin c\u1eady v\u00e0 \u0111\u1ed9 ch\u00ednh x\u00e1c l\u00e0 nh\u1eefng th\u01b0\u1edbc \u0111o th\u00e0nh c\u00f4ng trong t\u1ef1 \u0111\u1ed9ng h\u00f3a c\u00f4ng nghi\u1ec7p. Qu\u00e1 tr\u00ecnh t\u1eeb khi nh\u1eadn di\u1ec7n m\u1ed9t th\u00e1ch th\u1ee9c tr\u00ean d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t cho \u0111\u1ebfn khi x\u00e2y d\u1ef1ng \u0111\u01b0\u1ee3c m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n m\u1ea1nh m\u1ebd l\u00e0 m\u1ed9t ch\u1eb7ng \u0111\u01b0\u1eddng \u0111\u1ea7y th\u00e1ch th\u1ee9c. Qu\u00e1 tr\u00ecnh n\u00e0y kh\u00f4ng b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t linh ki\u1ec7n, m\u00e0 b\u1eaft \u0111\u1ea7u t\u1eeb m\u1ed9t c\u00e2u h\u1ecfi: Ch\u00fang ta c\u1ea7n ph\u1ea3i l\u00e0m g\u00ec? \u0110\u00f3 l\u00e0 [\u2026]<\/p>","protected":false},"author":4,"featured_media":7740,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","footnotes":""},"categories":[46],"tags":[],"class_list":["post-7731","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrial-control"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/7731","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/comments?post=7731"}],"version-history":[{"count":3,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/7731\/revisions"}],"predecessor-version":[{"id":8781,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/posts\/7731\/revisions\/8781"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/media\/7740"}],"wp:attachment":[{"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/media?parent=7731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/categories?post=7731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.omch.com\/vi\/wp-json\/wp\/v2\/tags?post=7731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}