{"id":9841,"date":"2021-09-28T03:21:46","date_gmt":"2021-09-28T03:21:46","guid":{"rendered":"https:\/\/ulcab.com.vn\/?p=9841"},"modified":"2021-09-28T03:21:46","modified_gmt":"2021-09-28T03:21:46","slug":"truyen-thong-profibus-la-gi-ung-dung-cua-truyen-thong-profibus","status":"publish","type":"post","link":"https:\/\/ulcab.com.vn\/?p=9841","title":{"rendered":"Truy\u1ec1n th\u00f4ng Profibus l\u00e0 g\u00ec? \u1ee8ng d\u1ee5ng c\u1ee7a truy\u1ec1n th\u00f4ng Profibus?"},"content":{"rendered":"

1. Truy\u1ec1n th\u00f4ng Profibus l\u00e0 g\u00ec?<\/strong><\/h2>\n

Profibus<\/strong> (Process Field Bus) l\u00e0 m\u1ed9t chu\u1ea9n cho truy\u1ec1n th\u00f4ng fieldbus trong k\u1ef9 thu\u1eadt t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n l\u1ea7n \u0111\u1ea7u v\u00e0o n\u0103m 1989 b\u1edfi BMBF (ph\u00f2ng gi\u00e1o d\u1ee5c v\u00e0 nghi\u00ean c\u1ee9u \u0110\u1ee9c) v\u00e0 sau \u0111\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi Siemens. Trong s\u1ea3n xu\u1ea5t, c\u00e1c \u1ee9ng d\u1ee5ng t\u1ef1 \u0111\u1ed9ng h\u00f3a qu\u00e1 tr\u00ecnh c\u00f4ng nghi\u1ec7p v\u00e0 t\u1ef1 \u0111\u1ed9ng h\u00f3a t\u00f2a nh\u00e0, c\u00e1c m\u1ea1ng tr\u01b0\u1eddng n\u1ed1i ti\u1ebfp (serial fieldbus) c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng nh\u01b0 h\u1ec7 th\u1ed1ng truy\u1ec1n th\u00f4ng, trao \u0111\u1ed5i th\u00f4ng tin gi\u1eefa c\u00e1c h\u1ec7 th\u1ed1ng t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 c\u00e1c thi\u1ebft b\u1ecb hi\u1ec7n tr\u01b0\u1eddng ph\u00e2n t\u00e1n. Chu\u1ea9n n\u00e0y c\u0169ng cho ph\u00e9p c\u00e1c thi\u1ebft b\u1ecb c\u1ee7a nhi\u1ec1u nh\u00e0 cung c\u1ea5p kh\u00e1c nhau giao ti\u1ebfp v\u1edbi nhau m\u00e0 kh\u00f4ng c\u1ea7n \u0111i\u1ec1u ch\u1ec9nh giao di\u1ec7n \u0111\u1eb7c bi\u1ec7t.<\/p>\n

2. \u0110\u1eb7c \u0111i\u1ec3m truy\u1ec1n th\u00f4ng Profibus<\/strong><\/h2>\n

Profibus l\u00e0 m\u1ed9t m\u1ea1ng Fieldbus \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 giao ti\u1ebfp gi\u1eefa m\u00e1y t\u00ednh v\u00e0 PLC. D\u1ef1a tr\u00ean nguy\u00ean t\u1eafc token bus kh\u00f4ng \u0111\u1ed3ng b\u1ed9 \u1edf ch\u1ebf \u0111\u1ed9 th\u1eddi gian th\u1ef1c, PROFIBUS x\u00e1c \u0111\u1ecbnh m\u1ed1i quan h\u1ec7 truy\u1ec1n th\u00f4ng gi\u1eefa nhi\u1ec1u master v\u00e0 gi\u1eefa master-slave, v\u1edbi kh\u1ea3 n\u0103ng truy c\u1eadp theo chu k\u00ec v\u00e0 kh\u00f4ng theo chu k\u00ec, t\u1ed1c \u0111\u1ed9 truy\u1ec1n t\u1ed1i \u0111a l\u00ean t\u1edbi 500 kbit\/s (trong m\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng c\u00f3 th\u1ec3 l\u00ean t\u1edbi 1,5Mbp hay 12Mbp). Kho\u1ea3ng c\u00e1ch bus t\u1ed1i \u0111a kh\u00f4ng d\u00f9ng b\u1ed9 l\u1eb7p (repeater) l\u00e0 200m v\u00e0 n\u1ebfu d\u00f9ng b\u1ed9 l\u1eb7p kho\u1ea3ng c\u00e1ch t\u1ed1i \u0111a c\u00f3 th\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c l\u00e0 800m. S\u1ed1 \u0111i\u1ec3m (node) t\u1ed1i \u0111a n\u1ebfu kh\u00f4ng c\u00f3 b\u1ed9 l\u1eb7p l\u00e0 32 v\u00e0 l\u00e0 127 n\u1ebfu c\u00f3 b\u1ed9 l\u1eb7p.<\/p>\n

Profibus s\u1eed d\u1ee5ng ph\u01b0\u01a1ng ti\u1ec7n truy\u1ec1n tin xo\u1eafn \u0111\u00f4i v\u00e0 RS485 chu\u1ea9n c\u00f4ng nghi\u1ec7p trong c\u00e1c \u1ee9ng d\u1ee5ng s\u1ea3n xu\u1ea5t ho\u1eb7c IEC 1158-2 trong \u0111i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh. PROFIBUS c\u0169ng c\u00f3 th\u1ec3 s\u1eed d\u1ee5ng Ethernet\/TCP-IP.<\/p>\n

\"\u0110\u1eb7c<\/p>\n

3. Ph\u00e2n lo\u1ea1i truy\u1ec1n th\u00f4ng Profibus<\/strong><\/h2>\n

Profibus c\u00f3 3 ki\u1ec3u giao th\u1ee9c l\u00e0: PROFIBUS DP, PROFIBUS PA, PROFIBUS FMS\u00a0<\/strong><\/p>\n

\"Ph\u00e2n<\/p>\n

PROFIBUS DP l\u00e0 bus c\u1ea5p thi\u1ebft b\u1ecb h\u1ed7 tr\u1ee3 c\u1ea3 t\u00edn hi\u1ec7u t\u01b0\u01a1ng t\u1ef1 v\u00e0 t\u00edn hi\u1ec7u ph\u00e2n t\u00e1n. PROFIBUS DP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i nh\u1ea5t hi\u1ec7n nay cho c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng nh\u01b0 h\u1ec7 th\u1ed1ng I\/O, \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 v\u00e0 bi\u1ebfn t\u1ea7n. Profibus DP truy\u1ec1n th\u00f4ng v\u1edbi t\u1ed1c \u0111\u1ed9 t\u1eeb 9,6 Kbp -12 Mbp trong ph\u1ea1m vi t\u1eeb 100-1200m. N\u00f3 l\u00e0 PROFIBUS ho\u1ea1t \u0111\u1ed9ng tr\u00ean giao di\u1ec7n RS485 chu\u1ea9n v\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c b\u1ed5 sung m\u1ed9t s\u1ed1 \u0111\u1eb7c \u0111i\u1ec3m \u0111\u1ec3 ph\u00f9 h\u1ee3p v\u1edbi c\u00e1c \u1ee9ng d\u1ee5ng qu\u00e1 tr\u00ecnh nh\u01b0 \u0111\u1ecdc\/ghi d\u1eef li\u1ec7u qu\u00e1 tr\u00ecnh kh\u00f4ng theo chu k\u00ec, truy\u1ec1n tr\u1ea1ng th\u00e1i thi\u1ebft b\u1ecb, c\u1ea5p ngu\u1ed3n tr\u00ean bus v\u00e0 an to\u00e0n n\u1ed9i t\u1ea1i. PROFIBUS DP \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 truy\u1ec1n d\u1eef li\u1ec7u t\u1ed1c \u0111\u1ed9 cao t\u1ea1i c\u1ea5p thi\u1ebft b\u1ecb. Trong tr\u01b0\u1eddng h\u1ee3p n\u00e0y, c\u00e1c b\u1ed9 \u0111i\u1ec1u khi\u1ec3n trung t\u00e2m (PLC, PC) giao ti\u1ebfp v\u1edbi c\u00e1c thi\u1ebft b\u1ecb hi\u1ec7n tr\u01b0\u1eddng ph\u00e2n t\u00e1n c\u1ee7a ch\u00fang (I\/O, drive, van\u2026) qua m\u1ed9t li\u00ean k\u1ebft n\u1ed1i ti\u1ebfp t\u1ed1c \u0111\u1ed9 cao. H\u1ea7u h\u1ebft qu\u00e1 tr\u00ecnh truy\u1ec1n d\u1eef li\u1ec7u v\u1edbi c\u00e1c thi\u1ebft b\u1ecb ph\u00e2n t\u00e1n n\u00e0y \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo chu k\u00ec.<\/p>\n

\"Truy\u1ec1n<\/p>\n

PROFIBUS PA l\u00e0 m\u1ed9t fieldbus c\u00f3 ch\u1ee9c n\u0103ng to\u00e0n di\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho thi\u1ebft b\u1ecb c\u1ea5p qu\u00e1 tr\u00ecnh. PROFIBUS PA truy\u1ec1n th\u00f4ng v\u1edbi t\u1ed1c \u0111\u1ed9 31,25 Kbp v\u1edbi ph\u1ea1m vi t\u1ed1i \u0111a 1.900m\/ph\u00e2n \u0111o\u1ea1n. Chu\u1ea9n n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf cho nh\u1eefng \u1ee9ng d\u1ee5ng Intrinsically Safe.<\/p>\n

PROFIBUS FMS l\u00e0 m\u1ed9t bus \u0111i\u1ec1u khi\u1ec3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 giao ti\u1ebfp gi\u1eefa DCS v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng PLC.<\/p>\n

4. \u01afu, nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a truy\u1ec3n th\u00f4ng Profibus<\/strong><\/h2>\n

4.1. \u01afu \u0111i\u1ec3m c\u1ee7a truy\u1ec3n th\u00f4ng Profibus<\/strong><\/h3>\n

– \u0110\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i, ho\u1ea1t \u0111\u1ed9ng \u1ed5n \u0111\u1ecbnh, \u0111\u01a1n gi\u1ea3n, \u0111\u00e1ng t\u00edn c\u1eady d\u1ec5 m\u1edf r\u1ed9ng h\u1ec7 th\u1ed1ng.<\/p>\n

– H\u1ed7 tr\u1ee3 m\u1ea1ng t\u1ea1i c\u00e1c c\u1ea5p \u0111\u1ed9 thi\u1ebft b\u1ecb, \u0111i\u1ec1u khi\u1ec3n qu\u00e1 tr\u00ecnh.<\/p>\n

– S\u1eb5n c\u00f3 giao di\u1ec7n cho c\u00e1c \u1ee9ng d\u1ee5ng variable speed drive v\u00e0 trung t\u00e2m \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng c\u01a1 (Profibus DP).<\/p>\n

– S\u1eed d\u1ee5ng trong m\u00f4i tr\u01b0\u1eddng an to\u00e0n (Intrinsically Safe) (\u0111\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb Profibus PA).<\/p>\n

– C\u00e1c c\u1ed5ng n\u1ed1i (gateway) cho ph\u00e9p t\u00edch h\u1ee3p Profibus PA tr\u1ef1c ti\u1ebfp v\u1edbi m\u1ea1ng Profibus DP.<\/p>\n

– Giao di\u1ec7n ch\u1ee7 (host) s\u1eb5n c\u00f3 cho h\u1ea7u h\u1ebft PLC, DCS v\u00e0 c\u00e1c h\u1ec7 th\u1ed1ng m\u00e1y t\u00ednh.<\/p>\n

– Thi\u1ebft b\u1ecb gateway h\u1ed7 tr\u1ee3 tr\u1ef1c ti\u1ebfp c\u00e1c m\u1ea1ng bus sensor chi ph\u00ed th\u1ea5p h\u01a1n, \u0111\u1eb7c bi\u1ec7t l\u00e0 AS-Interface.<\/p>\n

– D\u00f9 c\u00f3 nhi\u1ec1u \u01b0u \u0111i\u1ec3m song PROFIBUS c\u0169ng t\u1ed3n t\u1ea1i nh\u1eefng nh\u01b0\u1ee3c \u0111i\u1ec3m:<\/p>\n

4.2. Nh\u01b0\u1ee3c \u0111i\u1ec3m c\u1ee7a truy\u1ec3n th\u00f4ng Profibus<\/strong><\/h3>\n

Profibus DP kh\u00f4ng h\u1ed7 tr\u1ee3 \u1ee9ng d\u1ee5ng Intrinsically Safe.<\/p>\n

Nh\u1eefng y\u00eau c\u1ea7u r\u1eb1ng bu\u1ed9c v\u1ec1 h\u1ec7 th\u1ed1ng d\u00e2y c\u00e1p, \u0111i\u1ec7n, ti\u1ebfp \u0111\u1ea5t, b\u1ecdc v\u00e0 \u0111\u1ea7u cu\u1ed1i ph\u1ea3i \u0111\u01b0\u1ee3c t\u00ednh \u0111\u1ebfn trong qu\u00e1 tr\u00ecnh thi\u1ebft k\u1ebf v\u00e0 l\u1eafp \u0111\u1eb7t.<\/p>\n

5. \u1ee8ng d\u1ee5ng c\u1ee7a truy\u1ec3n th\u00f4ng Profibus<\/strong><\/h2>\n

Do c\u00f3 r\u1ea5t nhi\u1ec1u \u01b0u \u0111i\u1ec3m n\u00ean hi\u1ec7n nay, PROFIBUS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ea5t nhi\u1ec1u trong c\u00e1c h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng trong c\u00f4ng nghi\u1ec7p, \u0111\u1eb7c bi\u1ec7t l\u00e0 PROFIBUS DP \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c nh\u00e0 m\u00e1y c\u00f4ng nghi\u1ec7p nh\u01b0 xi m\u0103ng, \u0111i\u1ec7n, h\u00f3a ch\u1ea5t, ch\u1ebf bi\u1ebfn,…v.v. t\u1ea1i Vi\u1ec7t Nam c\u0169ng nh\u01b0 tr\u00ean th\u1ebf gi\u1edbi.<\/p>\n

M\u1ed9t s\u1ed1 \u1ee9ng d\u1ee5ng ti\u00eau bi\u1ec3u s\u1eed d\u1ee5ng m\u1ea1ng PROFIBUS tr\u00ean th\u1ebf gi\u1edbi:<\/p>\n

– Nh\u00e0 m\u00e1y \u0111\u00f3ng chai Coca-Cola t\u1ea1i HM Interdrink (\u0110\u1ee9c)<\/p>\n

Y\u00eau c\u1ea7u c\u1ee7a HM Interdrink l\u00e0 c\u1ea7n m\u1ed9t d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t c\u00f3 n\u0103ng su\u1ea5t cao, ho\u1ea1t \u0111\u1ed9ng tin c\u1eady v\u00e0 hi\u1ec7u qu\u1ea3 v\u1ec1 kinh t\u1ebf. Do v\u1eady h\u1ecd \u0111\u00e3 quy\u1ebft \u0111\u1ecbnh s\u1eed d\u1ee5ng PROFIBUS-DP cho qu\u00e1 tr\u00ecnh l\u01b0u th\u00f4ng d\u1eef li\u1ec7u chu k\u1ef3 nhanh v\u00e0 PROFIBUS-FMS cho l\u01b0u th\u00f4ng d\u1eef li\u1ec7u kh\u00f4ng \u0111\u1ed3ng b\u1ed9 v\u1edbi l\u01b0\u1ee3ng d\u1eef li\u1ec7u l\u1edbn. Hai giao th\u1ee9c \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng cho 2 m\u1ee9c \u0111i\u1ec1u khi\u1ec3n kh\u00e1c nhau trong d\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t.<\/p>\n

– Nh\u00e0 m\u00e1y pha ch\u1ebf d\u1ea7u kh\u00ed c\u1ee7a Shell (\u0110\u1ee9c)<\/p>\n

Deutsche Shell AG quy\u1ebft \u0111\u1ecbnh \u00e1p d\u1ee5ng m\u1ed9t gi\u1ea3i ph\u00e1p t\u1ef1 \u0111\u1ed9ng h\u00f3a ti\u00ean ti\u1ebfn d\u1ef1a tr\u00ean c\u00f4ng ngh\u1ec7 giao ti\u1ebfp ph\u00e2n t\u00e1n hi\u1ec7n \u0111\u1ea1i. Ph\u00f2ng \u0111i\u1ec1u khi\u1ec3n trung t\u00e2m s\u1eed d\u1ee5ng ph\u1ea7n m\u1ec1m Total Plant Batch v\u00e0 h\u1ec7 th\u1ed1ng th\u1ecb gi\u00e1c Honeywell SCAN 3000. Nh\u1eefng thi\u1ebft b\u1ecb n\u00e0y \u0111\u01b0\u1ee3c n\u1ed1i v\u1edbi Simantic S5 PLC s\u1eed d\u1ee5ng Ethernet c\u00f4ng nghi\u1ec7p. C\u00f4ng c\u1ee5 Commuwin 2 c\u1ee7a Endres and Hauser n\u1ed1i tr\u1ef1c ti\u1ebfp v\u1edbi PROFIBUS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 c\u1ea5u h\u00ecnh c\u00e1c b\u1ed9 truy\u1ec1n t\u00edn hi\u1ec7u E&H. X\u00e9t v\u1ec1 t\u1ed5ng th\u1ec3, to\u00e0n nh\u00e0 m\u00e1y g\u1ed3m h\u01a1n 9000 thi\u1ebft b\u1ecb v\u00e0 c\u1ea3m bi\u1ebfn t\u1eeb 8 nh\u00e0 s\u1ea3n xu\u1ea5t. To\u00e0n b\u1ed9 ch\u00fang \u0111\u01b0\u1ee3c n\u1ed1i th\u00f4ng v\u1edbi nhau b\u1eb1ng PROFIBUS-DP, PA v\u00e0 AS-Interface.<\/p>\n

M\u1ed9t s\u1ed1 h\u00e3ng s\u1ea3n xu\u1ea5t c\u00e1p Profibus tr\u00ean th\u1ecb tr\u01b0\u1eddng nh\u01b0: <\/strong>profibus c\u1ee7a Siemens, Lapp Kabel, Helukabel, Leoni, Belden, Hosiwell, Benka, Imatek, ERSE KABLO, 2M KABLO, Nexans, KURAMO, Mitsubishi …<\/strong><\/p>\n\n\n

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\n 5\/5 - (89 b\u00ecnh ch\u1ecdn) <\/div>\n <\/div>\n","protected":false},"excerpt":{"rendered":"

1. Truy\u1ec1n th\u00f4ng Profibus l\u00e0 g\u00ec? Profibus (Process Field Bus) l\u00e0 m\u1ed9t chu\u1ea9n cho truy\u1ec1n th\u00f4ng fieldbus trong k\u1ef9 thu\u1eadt t\u1ef1 \u0111\u1ed9ng h\u00f3a v\u00e0 \u0111\u01b0\u1ee3c ph\u00e1t tri\u1ec3n l\u1ea7n \u0111\u1ea7u v\u00e0o n\u0103m 1989 b\u1edfi BMBF (ph\u00f2ng gi\u00e1o d\u1ee5c v\u00e0 nghi\u00ean c\u1ee9u \u0110\u1ee9c) v\u00e0 sau \u0111\u00f3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng b\u1edfi Siemens. 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