{"id":3411,"date":"2021-11-04T10:04:54","date_gmt":"2021-11-04T02:04:54","guid":{"rendered":"https:\/\/xhteapack.com\/?p=3411"},"modified":"2022-09-14T14:41:04","modified_gmt":"2022-09-14T06:41:04","slug":"plc-nao-cho-thiet-bi-dong-goi","status":"publish","type":"post","link":"https:\/\/xhteapack.com\/vi\/plc-nao-cho-thiet-bi-dong-goi\/","title":{"rendered":"PLC, B\u1ed9 n\u00e3o th\u00f4ng minh cho thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i tr\u00e0 & c\u00e0 ph\u00ea"},"content":{"rendered":"

t\u1eeb kh\u00f3a<\/span><\/strong>: PLC, \u0110\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng, Thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i ch\u00e8, M\u00e1y \u0111\u00f3ng g\u00f3i c\u00e0 ph\u00ea<\/span>.<\/p>

Hi\u1ec7n nay, m\u1ed9t chi\u1ebfc m\u00e1y \u0111\u00f3ng g\u00f3i ch\u00e8 \u01b0u vi\u1ec7t c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5 \u0111\u00f3ng g\u00f3i s\u1ea3n ph\u1ea9m ch\u00e8 theo m\u1ebb. N\u00f3 c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh c\u00e1c quy tr\u00ecnh \u0111\u00f3ng g\u00f3i kh\u00e1c nhau m\u1ed9t c\u00e1ch c\u00f3 tr\u1eadt t\u1ef1. Bao g\u1ed3m \u0111o l\u01b0\u1eddng, cho \u0103n v\u00e0 l\u00e0m \u0111\u1ea7y, k\u00e9o m\u00e0ng, ni\u00eam phong t\u00fai, v.v. Thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i tr\u00e0 t\u1ef1 \u0111\u1ed9ng ch\u1ea1y hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng c\u1ea7n b\u1ea5t k\u1ef3 h\u00e0nh \u0111\u1ed9ng kh\u00f4ng c\u1ea7n thi\u1ebft n\u00e0o.<\/p>

L\u00e0 m\u1ed9t ng\u01b0\u1eddi h\u00e2m m\u1ed9 cu\u1ed3ng nhi\u1ec7t c\u1ee7a vi\u1ec7c \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng, t\u1ea5t c\u1ea3 \u0111\u1ec1u nh\u1edd v\u00e0o PLC. Th\u1eadt kh\u00f3 ch\u1ecbu bi\u1ebft bao khi v\u1eadn h\u00e0nh m\u1ed9t m\u00e1y \u0111\u00f3ng g\u00f3i kh\u00f4ng c\u00f3 PLC! Gi\u1ed1ng nh\u01b0 b\u1ea1n ph\u1ea3i s\u1eed d\u1ee5ng m\u1ed9t chi\u1ebfc \u0111i\u1ec7n tho\u1ea1i di \u0111\u1ed9ng \u0111\u01b0\u1ee3c s\u1ea3n xu\u1ea5t c\u00e1ch \u0111\u00e2y 10 n\u0103m.<\/p>

B\u1ea1n c\u00f3 th\u1ec3 t\u00f2 m\u00f2 v\u1ec1 \u0111i\u1ec1u \u0111\u00f3, ch\u1eb3ng h\u1ea1n nh\u01b0 PLC l\u00e0 g\u00ec?<\/strong> PLC ho\u1ea1t \u0111\u1ed9ng nh\u01b0 th\u1ebf n\u00e0o?<\/strong> L\u1ee3i \u00edch c\u1ee7a vi\u1ec7c \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng l\u00e0 g\u00ec<\/strong>? V\u00e0 l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 l\u1ef1a ch\u1ecdn?<\/strong> Th\u00ec trong b\u00e0i vi\u1ebft n\u00e0y, b\u1ea1n s\u1ebd nh\u1eadn \u0111\u01b0\u1ee3c c\u00e2u tr\u1ea3 l\u1eddi cho t\u1ea5t c\u1ea3 c\u00e1c c\u00e2u h\u1ecfi tr\u00ean<\/p>

PLC l\u00e0 g\u00ec?<\/strong><\/h2>
\"b\u1ed9<\/figure>

PLC \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 m\u1ed9t Ch\u01b0\u01a1ng tr\u00ecnh ki\u1ec3m so\u00e1t logic<\/a><\/span><\/strong>. N\u00f3 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn m\u1ed9t h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n m\u00e1y t\u00ednh c\u00f4ng nghi\u1ec7p \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1eb7c bi\u1ec7t. L\u00e0 m\u1ed9t b\u1ed9 \u0111i\u1ec1u khi\u1ec3n \u0111\u00e1ng tin c\u1eady, PLC c\u00f3 th\u1ec3 ho\u1ea1t \u0111\u1ed9ng trong m\u00f4i tr\u01b0\u1eddng c\u00f4ng nghi\u1ec7p kh\u1eafc nghi\u1ec7t. Ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111i\u1ec1u ki\u1ec7n \u1ea9m \u01b0\u1edbt, b\u1ee5i b\u1eb7m v\u00e0 th\u1eadm ch\u00ed l\u00e0 nhi\u1ec7t \u0111\u1ed9 kh\u1eafc nghi\u1ec7t.<\/p>

Khi \u1ee9ng d\u1ee5ng v\u00e0o ng\u00e0nh \u0111\u00f3ng g\u00f3i th\u1ef1c ph\u1ea9m, PLC \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 t\u1ef1 \u0111\u1ed9ng h\u00f3a quy tr\u00ecnh \u0111\u00f3ng g\u00f3i. N\u00f3 c\u00f3 th\u1ec3 gi\u00e1m s\u00e1t t\u1ea5t c\u1ea3 c\u00e1c bi\u1ebfn trong qu\u00e1 tr\u00ecnh s\u1ea3n xu\u1ea5t bao b\u00ec v\u00e0 nh\u1eadp ch\u00fang v\u00e0o CPU. B\u1eb1ng c\u00e1ch ch\u1ea1y trong ch\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef, m\u00e1y t\u00ednh s\u1ebd \u0111\u01b0a ra quy\u1ebft \u0111\u1ecbnh. V\u00e0 sau \u0111\u00f3, n\u00f3 \u0111i\u1ec1u khi\u1ec3n c\u00e1c \u0111\u1ea7u ra \u0111\u1ec3 k\u1ecbp th\u1eddi t\u1ef1 \u0111\u1ed9ng h\u00f3a m\u00e1y \u0111\u00f3ng g\u00f3i.<\/p>

C\u1ea5u tr\u00fac c\u01a1 b\u1ea3n c\u1ee7a PLC<\/strong><\/strong><\/h2>

C\u1ea5u tr\u00fac c\u1ee7a PLC gi\u1ed1ng nh\u01b0 c\u1ea5u tr\u00fac c\u1ee7a m\u00e1y t\u00ednh v\u0103n ph\u00f2ng. M\u1ed9t PLc ho\u00e0n ch\u1ec9nh v\u1edbi m\u00f4-\u0111un sau.<\/p>

M\u00f4-\u0111un cung c\u1ea5p b\u1ed9t<\/strong><\/strong><\/h3>

Th\u00f4ng th\u01b0\u1eddng, PLC c\u00f3 th\u1ec3 ch\u1ea1y b\u00ecnh th\u01b0\u1eddng \u1edf \u0111i\u1ec7n \u00e1p th\u1ea5p 24 V m\u1ed9t chi\u1ec1u<\/strong>. M\u00f4-\u0111un ngu\u1ed3n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 chuy\u1ec3n \u0111\u1ed5i ngu\u1ed3n \u0111i\u1ec7n b\u00ean ngo\u00e0i c\u00f3 s\u1eb5n \u0111i\u1ec7n xoay chi\u1ec1u<\/em><\/strong><\/a> v\u00e0o trong <\/a>\u0111i\u1ec7n m\u1ed9t chi\u1ec1u<\/strong><\/a> <\/em>\u0111\u01b0\u1ee3c y\u00eau c\u1ea7u b\u1edfi CPU, m\u00f4 \u0111un I\/O.<\/p>

m\u00f4-\u0111un I\/O<\/h3>
\"m\u00f4-\u0111un<\/figure>

m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o<\/strong><\/p>

H\u00e3y ngh\u0129 v\u1ec1 n\u00f3, l\u00e0m th\u1ebf n\u00e0o \u0111\u1ec3 m\u00e1y \u0111\u00f3ng g\u00f3i c\u1ea3m nh\u1eadn \u0111\u01b0\u1ee3c tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a nguy\u00ean li\u1ec7u tr\u00e0? Ch\u00fang ta c\u1ea7n d\u1ecbch d\u1eef li\u1ec7u c\u1ee5 th\u1ec3 n\u00e0y th\u00e0nh t\u00edn hi\u1ec7u m\u00e0 m\u00e1y t\u00ednh c\u00f3 th\u1ec3 hi\u1ec3u \u0111\u01b0\u1ee3c. T\u1ea5t nhi\u00ean, m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o A \/ D (t\u01b0\u01a1ng t\u1ef1 v\u1edbi m\u00f4-\u0111un k\u1ef9 thu\u1eadt s\u1ed1)<\/strong>x\u1eed l\u00fd ch\u1ee9c n\u0103ng chuy\u1ec3n \u0111\u1ed5i d\u1eef li\u1ec7u.<\/p>

Th\u00f4ng th\u01b0\u1eddng, n\u00f3 \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i v\u1edbi c\u00e1c thi\u1ebft b\u1ecb b\u00ean ngo\u00e0i, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u00e1c c\u00f4ng t\u1eafc, van, c\u1ea3m bi\u1ebfn, r\u01a1le, v.v. M\u00f4-\u0111un \u0111\u1ea7u v\u00e0o c\u00f3 th\u1ec3 gi\u00e1m s\u00e1t d\u1eef li\u1ec7u, ch\u1eb3ng h\u1ea1n nh\u01b0 tr\u1ecdng l\u01b0\u1ee3ng c\u1ee7a nguy\u00ean li\u1ec7u tr\u00e0, chi\u1ec1u d\u00e0i t\u00fai v\u00e0 nhi\u1ec7t \u0111\u1ed9 c\u1ee7a thi\u1ebft b\u1ecb ni\u00eam phong. H\u01a1n n\u1eefa, n\u00f3 c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i \u0111\u1ea7u v\u00e0o analog th\u00e0nh t\u00edn hi\u1ec7u s\u1ed1 \u0111\u1ec3 CPU ph\u00e2n t\u00edch v\u00e0 x\u1eed l\u00fd.<\/p>

m\u00f4-\u0111un \u0111\u1ea7u ra<\/strong><\/p>

M\u00f4-\u0111un \u0111\u1ea7u ra ho\u1ea1t \u0111\u1ed9ng theo quy tr\u00ecnh ng\u01b0\u1ee3c l\u1ea1i. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0, m\u00f4-\u0111un \u0111\u1ea7u ra D\/A (m\u00f4-\u0111un k\u1ef9 thu\u1eadt s\u1ed1 sang Analog)<\/strong> chuy\u1ec3n \u0111\u1ed5i t\u00edn hi\u1ec7u k\u1ef9 thu\u1eadt s\u1ed1 nh\u1eadn \u0111\u01b0\u1ee3c th\u00e0nh h\u01b0\u1edbng d\u1eabn \u0111\u00f3ng g\u00f3i t\u01b0\u01a1ng \u1ee9ng. \u0110\u1ec3 ki\u1ec3m so\u00e1t c\u00e1c ph\u1ea7n kh\u00e1c nhau \u0111\u1ec3 ho\u00e0n th\u00e0nh h\u00e0nh \u0111\u1ed9ng t\u01b0\u01a1ng \u1ee9ng.<\/p>

CPU<\/strong><\/h3>

C\u00e1c B\u1ed9 ph\u1eadn x\u1eed l\u00fd trung t\u00e2m; \u0111\u01a1n v\u1ecb x\u1eed l\u00fd trung t\u00e2m; B\u1ed9 ph\u1eadn \u0111i\u1ec7n t\u1eed Trung t\u00e2m<\/a><\/strong>\uff0cc\u00f3 th\u1ec3 l\u01b0u tr\u1eef c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c ch\u01b0\u01a1ng tr\u00ecnh c\u1ee5 th\u1ec3. Li\u00ean t\u1ee5c \u0111\u00e1nh gi\u00e1 tr\u1ea1ng th\u00e1i c\u1ee7a \u0111\u1ea7u v\u00e0o, \u0111\u1ea7u ra v\u00e0 c\u00e1c bi\u1ebfn kh\u00e1c th\u00f4ng qua m\u1ed9t v\u00f2ng l\u1eb7p. Cu\u1ed1i c\u00f9ng, CPU s\u1ebd g\u1eedi c\u00e1c l\u1ec7nh \u0111\u01b0\u1ee3c c\u1eadp nh\u1eadt th\u00f4ng qua m\u00f4-\u0111un \u0111\u1ea7u ra.<\/p>

M\u00f4-\u0111un HMI (Giao di\u1ec7n ng\u01b0\u1eddi-m\u00e1y)<\/strong><\/h3>

HMI c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 M\u00f4-\u0111un giao ti\u1ebfp<\/strong>. N\u00f3 l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb giao di\u1ec7n ng\u01b0\u1eddi v\u1eadn h\u00e0nh c\u00f3 th\u1ec3 \u0111\u01a1n gi\u1ea3n h\u00f3a vi\u1ec7c theo d\u00f5i ti\u1ebfn tr\u00ecnh \u0111\u00f3ng g\u00f3i. N\u00f3 c\u00f3 th\u1ec3 hi\u1ec3n th\u1ecb T\u1ea5t c\u1ea3 c\u00e1c tr\u1ea1ng th\u00e1i c\u1ee7a m\u00e1y \u0111\u00f3ng g\u00f3i.<\/p>

C\u00e1c ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n c\u1ee7a PLC<\/strong><\/strong><\/h2>

\u0110\u00fang nh\u01b0 t\u00ean g\u1ecdi c\u1ee7a n\u00f3, B\u1ed9 \u0111i\u1ec1u khi\u1ec3n logic kh\u1ea3 tr\u00ecnh th\u1ef1c hi\u1ec7n ba ch\u1ee9c n\u0103ng c\u01a1 b\u1ea3n nh\u01b0 sau:<\/p>

c\u00f3 th\u1ec3 l\u1eadp tr\u00ecnh<\/strong><\/h3>

CPU C\u00f3 th\u1ec3 l\u01b0u tr\u1eef ch\u01b0\u01a1ng tr\u00ecnh \u0111\u00f3ng g\u00f3i d\u1ef1a tr\u00ean y\u00eau c\u1ea7u th\u1ef1c t\u1ebf. V\u00e0 ch\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1ee3c l\u01b0u tr\u1eef c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng thay \u0111\u1ed5i ho\u1eb7c l\u1eadp tr\u00ecnh l\u1ea1i.<\/p>

logic<\/strong><\/h3>

PLC c\u00f3 th\u1ec3 nh\u1eadp nhi\u1ec1u bi\u1ebfn kh\u00e1c nhau, xu\u1ea5t ph\u00e1t t\u1eeb c\u00e1c c\u00f4ng t\u1eafc v\u00e0 c\u1ea3m bi\u1ebfn. V\u00ed d\u1ee5, ph\u1ea1m vi gi\u00e1 tr\u1ecb \u0111i\u1ec7n \u00e1p ho\u1eb7c d\u00f2ng \u0111i\u1ec7n th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 m\u00f4 t\u1ea3 c\u00e1c \u0111i\u1ec1u ki\u1ec7n c\u1ee7a quy tr\u00ecnh \u0111\u00f3ng g\u00f3i. N\u00f3 c\u00f3 th\u1ec3 chuy\u1ec3n \u0111\u1ed5i t\u1ea5t c\u1ea3 c\u00e1c lo\u1ea1i d\u1eef li\u1ec7u t\u01b0\u01a1ng t\u1ef1 th\u00e0nh t\u00edn hi\u1ec7u logic \u0111i\u1ec7n. H\u01a1n n\u1eefa, CPU th\u1ef1c thi ch\u01b0\u01a1ng tr\u00ecnh \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf. bao g\u1ed3m c\u1ed9ng, so s\u00e1nh, nh\u00e2n, tr\u1eeb, chia, ph\u1ee7 \u0111\u1ecbnh, v.v.<\/p>

c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t<\/strong><\/h3>

CPU g\u1eedi k\u1ebft qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng \u0111\u1ec3 c\u1eadp nh\u1eadt tr\u1ea1ng th\u00e1i c\u1ee7a thi\u1ebft b\u1ecb \u0111\u1ea7u ra. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 PLC c\u00f3 th\u1ec3 ki\u1ec3m so\u00e1t v\u00e0 \u0111i\u1ec1u ch\u1ec9nh qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i.<\/p>

C\u00e1ch th\u1ee9c ho\u1ea1t \u0111\u1ed9ng c\u1ee7a PLC trong thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng.<\/h2>

PLC, ch\u00eca kh\u00f3a \u0111\u1ec3 \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng<\/strong><\/h3>

B\u1ea1n c\u00f3 th\u1ec3 ngh\u0129 r\u1eb1ng quy tr\u00ecnh \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 l\u1edbn. Tr\u01b0\u1edbc khi PLC ra \u0111\u1eddi, quy tr\u00ecnh \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng n\u00e0y c\u1ea7n chia th\u00e0nh c\u00e1c b\u01b0\u1edbc. C\u00e1ch ti\u1ebfp c\u1eadn n\u00e0y l\u00e0m t\u0103ng s\u1ef1 m\u1ea5t th\u1eddi gian v\u00e0 lao \u0111\u1ed9ng. N\u00f3 c\u0169ng mang l\u1ea1i s\u1ef1 kh\u00f4ng ch\u1eafc ch\u1eafn cho ch\u1ea5t l\u01b0\u1ee3ng s\u1ea3n ph\u1ea9m.<\/p>

Ch\u1eb3ng h\u1ea1n, b\u1ed9 ph\u1eadn c\u00e2n ch\u1ec9 th\u1ef1c hi\u1ec7n ph\u00e9p \u0111o. M\u1ed9t thi\u1ebft b\u1ecb kh\u00e1c \u0111\u00f3ng vai tr\u00f2 ni\u00eam phong ch\u00fang \u0111\u00fang c\u00e1ch. B\u1eb1ng c\u00e1ch n\u00e0y, c\u1ea7n nhi\u1ec1u ng\u01b0\u1eddi v\u1eadn h\u00e0nh h\u01a1n \u0111\u1ec3 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5 \u0111\u00f3ng g\u00f3i \u0111\u00fang h\u1ea1n. V\u00e0 m\u1ed7i nhi\u1ec7m v\u1ee5 c\u1ea7n thi\u1ebft b\u1ecb c\u1ee5 th\u1ec3 c\u1ee7a n\u00f3 \u0111\u1ec3 ho\u00e0n th\u00e0nh.<\/p>

H\u01a1n th\u1ebf n\u1eefa, tr\u01b0\u1edbc PLC<\/strong>, c\u00f4ng ngh\u1ec7 c\u00f3 d\u00e2y c\u1ee9ng th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 ki\u1ec3m so\u00e1t qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i. Th\u1ee3 \u0111i\u1ec7n ph\u1ea3i l\u1eafp \u0111\u1eb7t c\u00e1c b\u1ed9 ph\u1eadn \u0111i\u1ec7n \u0111\u01b0\u1ee3c ch\u1ec9 \u0111\u1ecbnh theo s\u01a1 \u0111\u1ed3 m\u1ea1ch \u0111\u00e3 thi\u1ebft k\u1ebf. Tuy nhi\u00ean, n\u00f3 ti\u00eau th\u1ee5 r\u1ea5t nhi\u1ec1u \u0111i\u1ec7n n\u0103ng v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c b\u1ea3o tr\u00ec th\u01b0\u1eddng xuy\u00ean. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 n\u00f3 y\u00eau c\u1ea7u thay \u0111\u1ed5i nhi\u1ec1u th\u00e0nh ph\u1ea7n v\u00e0 n\u1ed1i l\u1ea1i d\u00e2y khi x\u1ea3y ra l\u1ed7i k\u1ef9 thu\u1eadt. ph\u1ea3i m\u1ea5t qu\u00e1 nhi\u1ec1u th\u1eddi gian v\u00e0 ti\u1ec1n b\u1ea1c \u0111\u1ec3 t\u00ecm ra n\u00f3.<\/p>

PLC c\u00f3 th\u1ec3 t\u00edch h\u1ee3p c\u00e1c h\u1ec7 th\u1ed1ng con v\u1edbi c\u00e1c m\u1ee5c \u0111\u00edch kh\u00e1c nhau. K\u1ebft qu\u1ea3 l\u00e0, qu\u00e1 tr\u00ecnh \u0111\u00f3ng g\u00f3i \u0111\u01a1n gi\u1ea3n h\u00f3a \u0111\u00e3 ra \u0111\u1eddi.<\/p>

Nguy\u00ean l\u00fd l\u00e0m vi\u1ec7c c\u1ee7a PLC<\/strong><\/h3>

T\u00f3m l\u1ea1i, nhi\u1ec7m v\u1ee5 c\u1ee7a PLC l\u00e0 \u0111\u00e1nh gi\u00e1 l\u1eb7p \u0111i l\u1eb7p l\u1ea1i d\u1eef li\u1ec7u li\u00ean quan v\u00e0 th\u1ef1c hi\u1ec7n ch\u01b0\u01a1ng tr\u00ecnh \u0111\u00e3 l\u01b0u tr\u1eef. C\u00f3 3 l\u1ea7n qu\u00e9t chu k\u1ef3 nh\u1ecf li\u00ean t\u1ee5c di\u1ec5n ra trong m\u1ed9t v\u00f2ng l\u1eb7p l\u1eb7p \u0111i l\u1eb7p l\u1ea1i. Ta g\u1ecdi \u0111\u00f3 l\u00e0 chu k\u1ef3 qu\u00e9t cho PLC.<\/p>

\"nguy\u00ean<\/figure>

1. Qu\u00e9t \u0111\u1ea7u v\u00e0o<\/strong>: Theo d\u00f5i tr\u1ea1ng th\u00e1i c\u1ee7a t\u1ea5t c\u1ea3 c\u00e1c m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o.<\/p>

2. Qu\u00e9t ch\u01b0\u01a1ng tr\u00ecnh<\/strong>: CPU th\u1ef1c hi\u1ec7n ch\u01b0\u01a1ng tr\u00ecnh logic \u0111\u00e3 thi\u1ebft l\u1eadp \u0111\u1ec3 l\u1ea5y k\u1ebft qu\u1ea3 ho\u1ea1t \u0111\u1ed9ng.<\/p>

3. Qu\u00e9t \u0111\u1ea7u ra<\/strong>: C\u1eadp nh\u1eadt tr\u1ea1ng th\u00e1i \u0111\u1ea7u ra v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c b\u01b0\u1edbc c\u1ee5 th\u1ec3.<\/p>

Sau khi ho\u00e0n th\u00e0nh c\u00e1c h\u01b0\u1edbng d\u1eabn, h\u1ec7 th\u1ed1ng s\u1ebd \u0111\u00e1nh gi\u00e1 to\u00e0n b\u1ed9 quy tr\u00ecnh \u0111\u00f3ng g\u00f3i r\u1ed3i quay l\u1ea1i v\u00f2ng l\u1eb7p ti\u1ebfp theo. Ch\u1ec9 m\u1ea5t m\u1ed9t kho\u1ea3ng th\u1eddi gian ng\u1eafn \u0111\u1ec3 th\u1ef1c hi\u1ec7n ch\u01b0\u01a1ng tr\u00ecnh m\u1ed9t l\u1ea7n, th\u01b0\u1eddng t\u00ednh b\u1eb1ng mili gi\u00e2y. \u0110\u00f3 l\u00e0 th\u1eddi gian qu\u00e9t c\u1ee7a m\u1ed9t PLC.<\/p>

\u01afu \u0111i\u1ec3m c\u1ee7a PLC<\/strong><\/strong><\/h3>

C\u00f3 m\u1ed9t s\u1ed1 l\u1ee3i th\u1ebf khi s\u1eed d\u1ee5ng PLC trong thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i th\u1ef1c ph\u1ea9m.<\/p>

\u00dd t\u01b0\u1edfng thi\u1ebft k\u1ebf m\u00f4-\u0111un<\/strong>, th\u1eadt d\u1ec5 d\u00e0ng \u0111\u1ec3 c\u00e0i \u0111\u1eb7t v\u00e0 b\u1ea3o tr\u00ec. Kh\u00f4ng c\u1ea7n \u0111i d\u00e2y nhi\u1ec1u linh ki\u1ec7n.<\/p>

\u00c1p d\u1ee5ng m\u1ed9t ng\u00f4n ng\u1eef l\u1eadp tr\u00ecnh \u0111\u01b0\u1ee3c ch\u1ea5p nh\u1eadn r\u1ed9ng r\u00e3i<\/strong>. D\u1ec5 d\u00e0ng v\u00e0 nhanh ch\u00f3ng \u0111\u1ec3 thay \u0111\u1ed5i ch\u01b0\u01a1ng tr\u00ecnh logic.<\/p>

T\u1ef1 ch\u1ea9n \u0111o\u00e1n c\u00f3 s\u1eb5n<\/strong>. C\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng \u0111\u00e1nh gi\u00e1 l\u1ed7i b\u1eb1ng c\u00e1ch theo d\u00f5i tr\u1ea1ng th\u00e1i c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh.<\/p>

N\u00f3 c\u00f3 kh\u1ea3 n\u0103ng t\u00ednh to\u00e1n tuy\u1ec7t v\u1eddi v\u00e0 th\u1eddi gian ho\u1ea1t \u0111\u1ed9ng nhanh.<\/strong><\/p>

Kh\u00f4ng c\u00f2n nghi ng\u1edd g\u00ec n\u1eefa, PLC mang l\u1ea1i hi\u1ec7u su\u1ea5t \u0111\u00f3ng g\u00f3i tuy\u1ec7t v\u1eddi. V\u1eady c\u00e1c lo\u1ea1i PLC ph\u1ed5 bi\u1ebfn l\u00e0 g\u00ec? t\u00ednh n\u0103ng c\u1ee7a h\u1ecd l\u00e0 g\u00ec? Ti\u1ebfp t\u1ee5c \u0111\u1ecdc.<\/p>

C\u00e1c lo\u1ea1i PLC trong thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng<\/strong><\/strong><\/h2>

C\u00e1c lo\u1ea1i PLC D\u1ef1a tr\u00ean thi\u1ebft l\u1eadp ph\u1ea7n c\u1ee9ng<\/strong><\/h3>

Khi n\u00f3i \u0111\u1ebfn c\u00e1c lo\u1ea1i PLC, c\u00f3 hai lo\u1ea1i PLC ch\u00ednh.<\/p>

PLC nh\u1ecf g\u1ecdn<\/strong><\/h4>
\"c\u00f4ng<\/figure>

N\u00f3 c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1eeda ch\u1eefa plc. T\u1ea5t c\u1ea3 c\u00e1c th\u00e0nh ph\u1ea7n ch\u1ee9c n\u0103ng \u0111\u01b0\u1ee3c t\u00edch h\u1ee3p v\u00e0o m\u1ed9t tr\u01b0\u1eddng h\u1ee3p duy nh\u1ea5t. N\u00f3 c\u00f3 m\u1ed9t s\u1ed1 m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ed1 \u0111\u1ecbnh. Ngu\u1ed3n \u0111i\u1ec7n, b\u1ed9 \u0111i\u1ec1u khi\u1ec3n vi m\u00f4 v\u00e0 th\u1ebb giao ti\u1ebfp \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1edfi nh\u00e0 s\u1ea3n xu\u1ea5t. V\u00ec v\u1eady, kh\u00f4ng c\u00f3 s\u1ef1 d\u01b0 th\u1eeba \u0111\u1ec3 m\u1edf r\u1ed9ng c\u00e1c m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra b\u1ed5 sung cho c\u00e1c m\u00f4-\u0111un nh\u1ecf g\u1ecdn. B\u1ea1n c\u00f3 th\u1ec3 l\u1ea5y m\u1ed9t s\u1ed1 \u00fd t\u01b0\u1edfng t\u1eeb h\u00ecnh \u1ea3nh d\u01b0\u1edbi \u0111\u00e2y.<\/p>

PLC nh\u1ecf g\u1ecdn l\u00e0 m\u1ed9t l\u1ef1a ch\u1ecdn t\u1ed1t cho c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng quy m\u00f4 nh\u1ecf. V\u00ed d\u1ee5, M\u1eabu XH-68<\/a> l\u00e0 m\u00e1y \u0111\u00f3ng g\u00f3i tr\u00e0 t\u00fai l\u1ecdc bu\u1ed3ng \u0111\u00f4i. N\u00f3 l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf t\u1ed1t v\u00e0 \u0111\u00e3 \u0111\u01b0\u1ee3c th\u1eed nghi\u1ec7m. Ch\u00fang t\u00f4i \u0111\u00e3 \u00e1p d\u1ee5ng PLC nh\u1ecf g\u1ecdn c\u1ee7a Omron<\/a> th\u01b0\u01a1ng hi\u1ec7u. N\u00f3 mang l\u1ea1i \u0111\u1ee7 kh\u1ea3 n\u0103ng \u0111\u1ec3 th\u1ef1c hi\u1ec7n t\u1ed1t vi\u1ec7c ki\u1ec3m so\u00e1t \u0111\u00f3ng g\u00f3i.<\/p>

PLC m\u00f4-\u0111un<\/strong><\/h4>
\"siemens<\/figure>

\u0110\u00e2y l\u00e0 m\u1ed9t PLC c\u00f3 th\u1ec3 d\u1ec5 d\u00e0ng m\u1edf r\u1ed9ng b\u1eb1ng c\u00e1ch th\u00eam c\u00e1c \u0111\u01a1n v\u1ecb \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra. N\u00f3 mang l\u1ea1i cho b\u1ea1n s\u1ef1 linh ho\u1ea1t h\u01a1n. Thi\u1ebft k\u1ebf c\u1ea5u tr\u00fac m\u00f4-\u0111un \u0111\u1ed9c l\u1eadp gi\u00fap s\u1eed d\u1ee5ng d\u1ec5 d\u00e0ng h\u01a1n.<\/p>

Trong PLC m\u00f4-\u0111un, ngu\u1ed3n \u0111i\u1ec7n, m\u00f4-\u0111un giao ti\u1ebfp v\u00e0 m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00e1ch ri\u00eang cho b\u1ed9 vi \u0111i\u1ec1u khi\u1ec3n. \u0110\u1ec3 t\u1ea1o ra m\u1ed9t PLC, ng\u01b0\u1eddi th\u1ee3 \u0111i\u1ec7n c\u1ea7n n\u1ed1i d\u00e2y v\u00e0 k\u1ebft h\u1ee3p c\u00e1c m\u00f4-\u0111un kh\u00e1c nhau. T\u00f9y thu\u1ed9c v\u00e0o kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng cao v\u00e0 nhi\u1ec1u t\u00f9y ch\u1ecdn t\u00f9y ch\u1ec9nh h\u01a1n, Modular PLC c\u00f3 th\u1ec3 x\u1eed l\u00fd s\u1ed1 l\u01b0\u1ee3ng thi\u1ebft b\u1ecb cao h\u01a1n. Ch\u00fang t\u00f4i th\u00edch s\u1eed d\u1ee5ng n\u00f3 trong c\u00e1c thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i quy m\u00f4 l\u1edbn v\u1edbi c\u00e1c quy tr\u00ecnh ph\u1ee9c t\u1ea1p.<\/p>

So s\u00e1nh gi\u1eefa<\/strong> PLC nh\u1ecf g\u1ecdn v\u00e0 PLC m\u00f4-\u0111un<\/strong><\/h4>

1. Kh\u1ea3 n\u0103ng m\u1edf r\u1ed9ng<\/strong><\/p>

N\u00f3i chung, PLC nh\u1ecf g\u1ecdn c\u00f3 h\u00ecnh d\u1ea1ng c\u1ed1 \u0111\u1ecbnh v\u00e0 nh\u1ecf g\u1ecdn. M\u1ed9t s\u1ed1 m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra c\u1ed1 \u0111\u1ecbnh gi\u1edbi h\u1ea1n kh\u1ea3 n\u0103ng th\u1ef1c hi\u1ec7n \u0111i\u1ec1u khi\u1ec3n c\u1ee7a n\u00f3. N\u1ebfu c\u00e1c ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n kh\u00f4ng n\u1eb7ng nh\u1ecdc, th\u00ec c\u1ea7n k\u1ebft n\u1ed1i \u00edt thi\u1ebft b\u1ecb h\u01a1n v\u1edbi PLC. Sau \u0111\u00f3, PLC t\u00edch h\u1ee3p c\u00f3 kh\u1ea3 n\u0103ng v\u00e0 gi\u1ea3m chi ph\u00ed.<\/p>

PLC m\u00f4-\u0111un kh\u00f4ng ph\u1ea3i l\u00e0 tr\u01b0\u1eddng h\u1ee3p. B\u1ea1n c\u00f3 th\u1ec3 th\u00eam c\u00e1c m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra c\u00f3 li\u00ean quan d\u1ef1a tr\u00ean nhu c\u1ea7u th\u1ef1c t\u1ebf. V\u00ed d\u1ee5: b\u1ea1n c\u00f3 th\u1ec3 th\u00eam c\u00e1c m\u00f4-\u0111un \u0111\u1ea7u ra t\u01b0\u01a1ng t\u1ef1 \u0111\u1ec3 th\u1ef1c hi\u1ec7n c\u00f9ng m\u1ed9t t\u00e1c v\u1ee5 \u0111\u00f3ng g\u00f3i. B\u1eb1ng c\u00e1ch n\u00e0y, b\u1ea1n c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng th\u00eam m\u1ed9t d\u00e2y chuy\u1ec1n \u0111\u00f3ng g\u00f3i. B\u1ea1n th\u1eadm ch\u00ed c\u00f3 th\u1ec3 m\u1edf r\u1ed9ng v\u00e0 k\u1ebft h\u1ee3p c\u00e1c m\u00f4-\u0111un kh\u00e1c nhau \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c c\u00e1c m\u1ee5c ti\u00eau t\u00f9y ch\u1ec9nh h\u01a1n.<\/p>

2. Kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 v\u00e0 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng<\/strong><\/p>

Do thi\u1ebft k\u1ebf t\u00edch h\u1ee3p cao, PLC nh\u1ecf g\u1ecdn c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u m\u00e1y \u0111\u00f3ng g\u00f3i nh\u1ecf h\u01a1n. \u0110\u1ebfn khi kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 th\u00ec n\u00f3 b\u1ecb m\u1eafc b\u1eaby. Khi m\u1ed9t trong c\u00e1c m\u00f4-\u0111un b\u1ecb l\u1ed7i, PLC nh\u1ecf g\u1ecdn s\u1ebd ng\u1eebng ho\u1ea1t \u0111\u1ed9ng. Vi\u1ec7c kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 y\u00eau c\u1ea7u nh\u00e2n vi\u00ean ki\u1ec3m tra v\u00e0 b\u1ea3o tr\u00ec PLC th\u00e0nh th\u1ea1o. Trong nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p, to\u00e0n b\u1ed9 PLC c\u1ea7n ph\u1ea3i \u0111\u01b0\u1ee3c th\u00e1o d\u1ee1 v\u00e0 g\u1eedi tr\u1edf l\u1ea1i nh\u00e0 m\u00e1y ban \u0111\u1ea7u \u0111\u1ec3 b\u1ea3o tr\u00ec. M\u1ea5t nhi\u1ec1u th\u1eddi gian.<\/p>

Trong PLC m\u00f4-\u0111un, m\u1ed7i m\u00f4-\u0111un ch\u1ee9c n\u0103ng ho\u1ea1t \u0111\u1ed9ng \u0111\u1ed9c l\u1eadp. \u0110i\u1ec1u \u0111\u00f3 c\u00f3 ngh\u0129a l\u00e0 x\u00e1c su\u1ea5t x\u1ea3y ra l\u1ed7i c\u1ee7a nhi\u1ec1u m\u00f4-\u0111un c\u00f9ng l\u00fac l\u00e0 r\u1ea5t th\u1ea5p. Khi x\u1ea3y ra l\u1ed7i, th\u1ee3 \u0111i\u1ec7n c\u00f3 ki\u1ebfn th\u1ee9c v\u1ec1 m\u1ea1ch \u0111i\u1ec7n \u0111\u1ed9c quy\u1ec1n c\u1ee7a PLc c\u00f3 th\u1ec3 kh\u1eafc ph\u1ee5c s\u1ef1 c\u1ed1 m\u1ed9t c\u00e1ch d\u1ec5 d\u00e0ng. Th\u1ef1c t\u1ebf \u0111\u01a1n gi\u1ea3n l\u00e0 th\u1eddi gian ng\u1eebng ho\u1ea1t \u0111\u1ed9ng c\u1ee7a m\u00e1y \u0111\u00f3ng g\u00f3i c\u00f3 PLC m\u00f4-\u0111un s\u1ebd \u00edt h\u01a1n.<\/p>

T\u1ea5t nhi\u00ean, PLC c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i theo c\u00e1c ti\u00eau ch\u00ed kh\u00e1c.<\/strong><\/p>

Lo\u1ea1i PLC theo \u0111\u1ea7u ra<\/strong><\/h3>

Trong h\u1ec7 th\u1ed1ng \u0111i\u1ec1u khi\u1ec3n t\u1ef1 \u0111\u1ed9ng, m\u00f4-\u0111un \u0111\u1ea7u ra c\u00f3 li\u00ean quan \u0111\u1ebfn c\u00e1c lo\u1ea1i t\u1ea3i.<\/p>

\u0111\u1ea7u ra r\u01a1le<\/strong><\/h4>

C\u1ea3 DC v\u00e0 AC \u0111\u1ec1u \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng. PLC \u0111i\u1ec1u khi\u1ec3n vi\u1ec7c \u0111\u00f3ng c\u1eaft r\u01a1le th\u00f4ng qua nguy\u00ean l\u00fd \u0111i\u1ec7n t\u1eeb. Tuy nhi\u00ean, s\u1ef1 m\u00e0i m\u00f2n c\u01a1 h\u1ecdc do chuy\u1ec3n \u0111\u1ed5i th\u01b0\u1eddng xuy\u00ean s\u1ebd l\u00e0m gi\u1ea3m tu\u1ed5i th\u1ecd c\u1ee7a r\u01a1le. V\u00ec v\u1eady, ng\u00f5 ra lo\u1ea1i r\u01a1le ph\u00f9 h\u1ee3p h\u01a1n v\u1edbi c\u00e1c ho\u1ea1t \u0111\u1ed9ng kh\u00f4ng c\u1ea7n chuy\u1ec3n m\u1ea1ch th\u01b0\u1eddng xuy\u00ean. V\u00ed d\u1ee5, k\u00edch ho\u1ea1t m\u1ed9t \u0111\u1ed9ng c\u01a1 y\u00eau c\u1ea7u ho\u1ea1t \u0111\u1ed9ng li\u00ean t\u1ee5c.<\/p>

\u0111\u1ea7u ra b\u00f3ng b\u00e1n d\u1eabn<\/strong><\/h4>

\u0110\u1ea7u ra c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb b\u00e1n d\u1eabn, ch\u1ec9 c\u00f3 th\u1ec3 x\u1eed l\u00fd \u0111\u1ea7u ra ngu\u1ed3n DC.<\/p>

Khi \u0111\u1ea7u ra c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn ho\u1ea1t \u0111\u1ed9ng, n\u00f3 ph\u1ea3n h\u1ed3i nhanh h\u01a1n so v\u1edbi r\u01a1le, th\u01b0\u1eddng l\u00e0 0,2 mili gi\u00e2y. B\u00ean c\u1ea1nh \u0111\u00f3, kh\u00f4ng c\u00f3 b\u1ed9 ph\u1eadn c\u01a1 kh\u00ed chuy\u1ec3n \u0111\u1ed9ng trong b\u00f3ng b\u00e1n d\u1eabn. PLC c\u00f3 th\u1ec3 xu\u1ea5t ho\u1ea1t \u0111\u1ed9ng t\u1ea7n s\u1ed1 cao m\u00e0 kh\u00f4ng c\u1ea7n xem x\u00e9t \u0111\u1ebfn hao m\u00f2n c\u01a1 h\u1ecdc. V\u00ec v\u1eady, \u0111\u1ea7u ra c\u1ee7a b\u00f3ng b\u00e1n d\u1eabn c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 thi\u1ebft b\u1ecb th\u1ec3 r\u1eafn<\/a>.<\/strong><\/p>

\u0111\u1ea7u ra triac<\/strong><\/h4>

\u0110\u1ea7u ra TRIAC l\u00e0 m\u1ed9t thi\u1ebft b\u1ecb b\u00e1n d\u1eabn cho ph\u00e9p d\u00f2ng \u0111i\u1ec7n ch\u1ea1y theo c\u1ea3 hai h\u01b0\u1edbng. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 \u0111i\u1ec1u khi\u1ec3n c\u00f4ng t\u1eafc trong \u0111i\u1ec1u ki\u1ec7n AC. N\u00f3 c\u0169ng l\u00e0 m\u1ed9t lo\u1ea1i thi\u1ebft b\u1ecb tr\u1ea1ng th\u00e1i r\u1eafn c\u00f3 tu\u1ed5i th\u1ecd cao, \u0111\u1ed9 nh\u1ea1y cao v\u00e0 chuy\u1ec3n \u0111\u1ed5i nhanh.<\/p>

\u0110\u1ea7u ra analog<\/strong><\/h4>

Nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp \u1edf tr\u00ean, c\u00e1c m\u00f4-\u0111un \u0111\u1ea7u ra ch\u1ec9 c\u00f3 hai tr\u1ea1ng th\u00e1i: B\u1eacT v\u00e0 T\u1eaeT. Ch\u00fang \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 B\u1eacT ho\u1eb7c T\u1eaeT b\u1ea5t k\u1ef3 ho\u1ea1t \u0111\u1ed9ng \u0111i\u1ec1u khi\u1ec3n n\u00e0o trong m\u00e1y \u0111\u00f3ng g\u00f3i. Ch\u00fang ho\u1ea1t \u0111\u1ed9ng \u1edf \u0111\u1ea7u ra nh\u1ecb ph\u00e2n (0 ho\u1eb7c 1) t\u1eeb PLC, c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 \u0111\u1ea7u ra k\u1ef9 thu\u1eadt s\u1ed1.<\/p>

Tr\u00ean th\u1ef1c t\u1ebf, thi\u1ebft b\u1ecb \u0111\u1ea7u ra \u0111\u00f4i khi c\u1ea7n th\u1ef1c hi\u1ec7n \u0111i\u1ec1u khi\u1ec3n \u0111\u1ed9ng li\u00ean t\u1ee5c. V\u00ed d\u1ee5, PLC \u0111\u1ea7u ra t\u01b0\u01a1ng t\u1ef1 c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n t\u1ed1c \u0111\u1ed9 ch\u1ea1y c\u1ee7a c\u00e1c thi\u1ebft b\u1ecb, ch\u1eb3ng h\u1ea1n nh\u01b0 \u0111\u1ed9ng c\u01a1.<\/p>

C\u00e1c lo\u1ea1i PLC theo k\u00edch th\u01b0\u1edbc v\u1eadt l\u00fd<\/strong><\/h3>

K\u00edch th\u01b0\u1edbc c\u1ee7a PLC c\u00f3 li\u00ean quan \u0111\u1ebfn s\u1ed1 l\u01b0\u1ee3ng \u0111\u01a1n v\u1ecb \u0111\u1ea7u v\u00e0o v\u00e0 \u0111\u1ea7u ra \u0111\u01b0\u1ee3c k\u1ebft n\u1ed1i. D\u1ef1a tr\u00ean s\u1ed1 l\u01b0\u1ee3ng c\u00e1c t\u00ednh n\u0103ng I\/O m\u00e0 m\u1ed9t plc<\/u><\/a> c\u00f3 th\u1ec3 x\u1eed l\u00fd, PLC c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c chia th\u00e0nh 3 nh\u00f3m.<\/p>

PLC nh\u1ecf<\/strong> \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong c\u00e1c \u1ee9ng d\u1ee5ng ki\u1ec3m so\u00e1t \u00edt h\u01a1n 128 Thi\u1ebft b\u1ecb I\/O.<\/p>

PLC trung b\u00ecnh<\/strong> c\u00f3 th\u1ec3 \u0111i\u1ec1u khi\u1ec3n 64 \u0111\u1ebfn 1024 thi\u1ebft b\u1ecb I\/O.<\/p>

PLC l\u1edbn<\/strong> \u0111i\u1ec1u khi\u1ec3n 512 \u0111\u1ebfn 4096 thi\u1ebft b\u1ecb I\/O.<\/p>

N\u00f3i chung, k\u00edch th\u01b0\u1edbc b\u1ed9 nh\u1edb ch\u01b0\u01a1ng tr\u00ecnh t\u01b0\u01a1ng quan thu\u1eadn v\u1edbi s\u1ed1 l\u01b0\u1ee3ng m\u00f4-\u0111un \u0111\u1ea7u v\u00e0o\/\u0111\u1ea7u ra.<\/p>

PLC nh\u1ecf c\u00f3 c\u1ea5u tr\u00fac nh\u1ecf g\u1ecdn v\u00e0 tr\u1ecdng l\u01b0\u1ee3ng nh\u1eb9. N\u00f3 c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c c\u00e0i \u0111\u1eb7t trong b\u1ea3ng \u0111i\u1ec1u khi\u1ec3n c\u1ee7a m\u00e1y \u0111\u00f3ng g\u00f3i. \u0110\u1ec3 thay th\u1ebf \u0111i\u1ec1u khi\u1ec3n logic ban \u0111\u1ea7u \u0111\u01b0\u1ee3c ho\u00e0n th\u00e0nh b\u1edfi r\u01a1le c\u00f3 d\u00e2y, b\u1ed9 \u0111\u1ebfm, b\u1ed9 h\u1eb9n gi\u1edd, v.v.<\/p>

K\u1ebft lu\u1eadn\/Suy ngh\u0129 cu\u1ed1i c\u00f9ng<\/strong><\/strong><\/h2>

Kh\u00f4ng c\u00f2n nghi ng\u1edd g\u00ec n\u1eefa, PLC l\u00e0 tr\u00e1i tim c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng. V\u1edbi ph\u1ea7n gi\u1edbi thi\u1ec7u ng\u1eafn g\u1ecdn v\u1ec1 PLC, ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 hi\u1ec3u th\u00eam v\u1ec1 hi\u1ec7u su\u1ea5t c\u1ee7a thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng. Trong t\u01b0\u01a1ng lai, ch\u00fang t\u00f4i s\u1ebd chia s\u1ebb th\u00eam ki\u1ebfn th\u1ee9c v\u1ec1 \u0111\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng v\u1edbi b\u1ea1n.<\/p>","protected":false},"excerpt":{"rendered":"

T\u1eeb kh\u00f3a: PLC, \u0110\u00f3ng g\u00f3i t\u1ef1 \u0111\u1ed9ng, Thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i ch\u00e8, M\u00e1y \u0111\u00f3ng g\u00f3i c\u00e0 ph\u00ea. Hi\u1ec7n nay, m\u1ed9t chi\u1ebfc m\u00e1y \u0111\u00f3ng g\u00f3i tr\u00e0 xu\u1ea5t s\u1eafc c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh nhi\u1ec7m v\u1ee5 \u0111\u00f3ng g\u00f3i c\u00e1c s\u1ea3n ph\u1ea9m tr\u00e0 theo m\u1ebb. N\u00f3 c\u00f3 th\u1ec3 ho\u00e0n th\u00e0nh c\u00e1c quy tr\u00ecnh \u0111\u00f3ng g\u00f3i kh\u00e1c nhau m\u1ed9t c\u00e1ch c\u00f3 tr\u1eadt t\u1ef1. Bao g\u1ed3m \u0111o l\u01b0\u1eddng, cho \u0103n v\u00e0 \u0111\u1ed5 \u0111\u1ea7y, k\u00e9o m\u00e0ng, ni\u00eam phong t\u00fai, v.v. Thi\u1ebft b\u1ecb \u0111\u00f3ng g\u00f3i tr\u00e0 t\u1ef1 \u0111\u1ed9ng [\u2026]<\/p>","protected":false},"author":1,"featured_media":3427,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_eb_attr":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-3411","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-base"],"_links":{"self":[{"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/posts\/3411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/comments?post=3411"}],"version-history":[{"count":0,"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/posts\/3411\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/media\/3427"}],"wp:attachment":[{"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/media?parent=3411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/categories?post=3411"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xhteapack.com\/vi\/wp-json\/wp\/v2\/tags?post=3411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}