{"id":6251630,"date":"2024-09-26T01:38:00","date_gmt":"2024-09-26T01:38:00","guid":{"rendered":"https:\/\/yp.vn\/?p=6251630"},"modified":"2024-09-26T08:43:19","modified_gmt":"2024-09-26T08:43:19","slug":"cach-ket-noi-can-dien-tu-voi-may-tinh-don-gian","status":"publish","type":"post","link":"https:\/\/yp.vn\/cach-ket-noi-can-dien-tu-voi-may-tinh-don-gian\/","title":{"rendered":"C\u00e1ch k\u1ebft n\u1ed1i c\u00e2n \u0111i\u1ec7n t\u1eed v\u1edbi m\u00e1y t\u00ednh \u0111\u01a1n gi\u1ea3n"},"content":{"rendered":"\r\n

\u0110\u1ed1i v\u1edbi c\u00e1c d\u00f2ng\u00a0c\u00e2n \u0111i\u1ec7n t\u1eed<\/a><\/strong>\u00a0hi\u1ec7n \u0111\u1ea1i \u0111\u1ec1u s\u1ebd c\u00f3 ch\u1ee9c n\u0103ng k\u1ebft n\u1ed1i v\u1edbi m\u00e1y t\u00ednh \u0111\u1ec3 qu\u1ea3n l\u00fd, thu th\u1eadp d\u1eef li\u1ec7u. V\u1eady, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e2n \u0111i\u1ec7n t\u1eed<\/a><\/strong> v\u1edbi m\u00e1y t\u00ednh \u0111\u00fang c\u00e1ch, ch\u00ednh x\u00e1c? Sau \u0111\u00e2y YP.VN s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n c\u00e1ch k\u1ebft n\u1ed1i ch\u00e2n \u0111i\u1ec7n t\u1eed v\u1edbi m\u00e1y t\u00ednh th\u00f4ng qua m\u1ed9t s\u1ed1 ph\u01b0\u01a1ng ph\u00e1p \u0111\u01a1n gi\u1ea3n d\u01b0\u1edbi \u0111\u00e2y<\/p>\r\n\r\n\r\n\r\n

Nh\u1eefng c\u00e1ch k\u1ebft n\u1ed1i c\u00e2n \u0111i\u1ec7n t\u1eed v\u1edbi m\u00e1y t\u00ednh<\/h2>\r\n\r\n\r\n\r\n

Tr\u01b0\u1edbc khi \u0111i v\u00e0o h\u01b0\u1edbng d\u1eabn c\u00e1ch k\u1ebft n\u1ed1i c\u00e2n \u0111i\u1ec7n t\u1eed v\u1edbi m\u00e1y t\u00ednh, b\u1ea1n c\u1ea7n n\u1eafm \u0111\u01b0\u1ee3c c\u00f3 bao nhi\u00eau c\u00e1ch k\u1ebft n\u1ed1i hai thi\u1ebft b\u1ecb v\u1edbi nhau. T\u1eeb \u0111\u00f3, b\u1ea1n c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng ch\u1ecdn \u0111\u01b0\u1ee3c ph\u01b0\u01a1ng ph\u00e1p k\u1ebft n\u1ed1i ph\u00f9 h\u1ee3p v\u1edbi thi\u1ebft b\u1ecb c\u1ee7a m\u00ecnh.\u00a0<\/p>\r\n\r\n\r\n\r\n

Hi\u1ec7n nay, c\u00f3 r\u1ea5t nhi\u1ec1u lo\u1ea1i c\u00e2n \u0111i\u1ec7n t\u1eed<\/a><\/strong>, \u0111\u1ea7u c\u00e2n \u0111i\u1ec7n t\u1eed \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111a d\u1ea1ng v\u1ec1 ki\u1ec3u d\u00e1ng, c\u00f4ng ngh\u1ec7,\u2026 Ch\u00ednh v\u00ec v\u1eady, m\u1ed7i thi\u1ebft b\u1ecb s\u1ebd c\u00f3 nh\u1eefng ki\u1ec3u k\u1ebft n\u1ed1i v\u1edbi m\u00e1y t\u00ednh kh\u00e1c nhau, ph\u1ed5 bi\u1ebfn l\u00e0 3 ph\u01b0\u01a1ng ph\u00e1p sau \u0111\u00e2y: RS232, RS485, Bluetooth\/Wireless, Ethernet,\u2026\u00a0<\/p>\r\n\r\n\r\n\r\n

K\u1ebft n\u1ed1i b\u1eb1ng Bluetooth ho\u1eb7c Wifi<\/h3>\r\n\r\n\r\n\r\n

C\u00f4ng ngh\u1ec7 Bluetooth ho\u1eb7c Wifi l\u00e0 nh\u1eefng c\u00f4ng ngh\u1ec7 hi\u1ec7n \u0111\u1ea1i th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb tr\u00ean nh\u1eefng d\u00f2ng c\u00e2n hi\u1ec7n \u0111\u1ea1i hi\u1ec7n nay. V\u1edbi c\u1ed5ng bluetooth hay wifi s\u1ebd gi\u00fap cho vi\u1ec7c k\u1ebft n\u1ed1i r\u1ea5t \u0111\u01a1n gi\u1ea3n, d\u1ec5 d\u00e0ng v\u00e0 nhanh ch\u00f3ng. Cac d\u00f2ng c\u1ea7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c trang b\u1ecb c\u1ed5ng bluetooth ho\u1eb7c wifi nh\u01b0\u00a0c\u00e2n b\u00e0n \u0111i\u1ec7n t\u1eed,\u00a0c\u00e2n treo,\u00a0c\u00e2n si\u00eau th\u1ecb,\u2026\u00a0<\/p>\r\n\r\n\r\n\r\n

K\u1ebft n\u1ed1i th\u00f4ng qua c\u1ed5ng RS232<\/h3>\r\n\r\n\r\n\r\n

C\u1ed5ng RS232 lu\u00f4n l\u00e0 m\u1ed9t trong nh\u1eefng t\u00ednh n\u0103ng \u0111\u01b0\u1ee3c trang b\u1ecb h\u1ea7u h\u1ebft \u1edf c\u00e1c d\u00f2ng c\u00e2n \u0111i\u1ec7n t\u1eed. V\u1edbi c\u1ed5ng RS232, b\u1ea1n c\u00f3 th\u1ec3 k\u1ebft n\u1ed1i v\u1edbi m\u00e1y t\u00ednh, USB \u0111\u1ec1u nhanh ch\u00f3ng, kh\u00f4ng m\u1ea5t nhi\u1ec1u th\u1eddi gian.<\/p>\r\n\r\n\r\n\r\n

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\"C\u00e2n

C\u1ed5ng RS232 lu\u00f4n l\u00e0 m\u1ed9t trong nh\u1eefng t\u00ednh n\u0103ng \u0111\u01b0\u1ee3c trang b\u1ecb h\u1ea7u h\u1ebft \u1edf c\u00e1c d\u00f2ng c\u00e2n \u0111i\u1ec7n t\u1eed<\/p><\/div>\r\n<\/figure>\r\n\r\n\r\n\r\n

\u01afu \u0111i\u1ec3m c\u1ee7a c\u1ed5ng RS232 ch\u00ednh l\u00e0 t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ea3i nhanh, c\u00f3 t\u00ednh c\u01a1 \u0111\u1ed9ng cao, d\u1ec5 s\u1eed d\u1ee5ng,\u2026 Do v\u1eady, Thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng s\u1ebd h\u01b0\u1edbng d\u1eabn b\u1ea1n c\u00e1ch d\u00f9ng c\u00e2n \u0111i\u1ec7n t\u1eed<\/a><\/strong> k\u1ebft n\u1ed1i m\u00e1y t\u00ednh b\u1eb1ng c\u1ed5ng RS232.\u00a0<\/p>\r\n\r\n\r\n\r\n

K\u1ebft n\u1ed1i c\u00e2n \u0111i\u1ec7n t\u1eed v\u1edbi m\u00e1y t\u00ednh b\u1eb1ng c\u1ed5ng USB<\/h3>\r\n\r\n\r\n\r\n

V\u1edbi c\u00e1ch k\u1ebft n\u1ed1i c\u00e2n \u0111i\u1ec7n t\u1eed v\u1edbi m\u00e1y t\u00ednh b\u1eb1ng c\u1ed5ng USB s\u1ebd y\u00eau c\u1ea7u m\u00e1y t\u00ednh \u0111\u01b0\u1ee3c trang b\u1ecb c\u1ed5ng COM. Tuy nhi\u00ean, nh\u1eefng m\u00e1y t\u00ednh \u0111\u1eddi m\u1edbi hi\u1ec7n nay \u0111\u00e3 kh\u00f4ng c\u00f2n c\u1ed5ng COM. Do v\u1eady, b\u1ea1n c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng c\u00e1p chuy\u1ec3n \u0111\u1ed5i th\u00f4ng qua c\u1ed5ng USB tr\u00ean m\u00e1y t\u00ednh.\u00a0<\/p>\r\n\r\n\r\n\r\n

C\u1ed5ng RS232 l\u00e0 g\u00ec?<\/h2>\r\n\r\n\r\n\r\n

C\u1ed5ng RS232 l\u00e0 m\u1ed9t c\u1ed5ng chu\u1ea9n giao ti\u1ebfp n\u1ed1i ti\u1ebfp \u0111\u1ecbnh d\u1ea1ng kh\u00f4ng \u0111\u1ed3ng b\u1ed9. C\u1ed5ng COM \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 k\u1ebft n\u1ed1i c\u00e2n \u0111i\u1ec7n t\u1eed<\/a><\/strong> v\u1edbi m\u00e1y t\u00ednh v\u1edbi d\u1eef li\u1ec7u t\u1eeb 12.5 \u0111\u1ebfn 25.4m, t\u1ed1c \u0111\u1ed9 th\u00f4ng th\u01b0\u1eddng 1200bit\/s \u2013 19600bit\/s<\/p>\r\n\r\n\r\n\r\n

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c\u1ed5ng RS232 th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi lo\u1ea1i 9 ch\u00e2n ho\u1eb7c 25 ch\u00e2n<\/p><\/div>\r\n<\/figure>\r\n\r\n\r\n\r\n

Th\u00f4ng th\u01b0\u1eddng, c\u1ed5ng RS232 th\u01b0\u1eddng \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf v\u1edbi lo\u1ea1i 9 ch\u00e2n ho\u1eb7c 25 ch\u00e2n. Tuy nhi\u00ean, lo\u1ea1i 9 c\u00e2n \u0111ang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng ph\u1ed5 bi\u1ebfn hi\u1ec7n nay.<\/p>\r\n\r\n\r\n\r\n