No ka holomua i ka ʻoihana wikiwiki o kēia lā, he mea koʻikoʻi ka mana kaʻina hana hilinaʻi a me ka automation. Hoʻonui ka mīkini hoʻopihapiha hoʻopihapiha PLC i ka laina lalo o nā hana hana. Me kahi PLC, ua maʻalahi nā hana paʻakikī e hoʻonohonoho a hoʻokele. He mea koʻikoʻi nā ʻōnaehana PLC i ka kūleʻa o nā ʻoihana he nui, ʻo ia hoʻi ka hoʻopili ʻana, kemika, nā meaʻai, a me nā ʻoihana hana inu. E ʻoluʻolu e heluhelu no ka ʻike hou aku e pili ana i ka ʻōnaehana PLC a me kona pili ʻana i nā mīkini pahu.
He aha ka ʻōnaehana PLC?
Kū ʻo PLC no "programmable logic controller," ʻo ia kona inoa piha a kūpono. Ma muli o ka hoʻonui ʻia ʻana o ka ʻenehana packing o kēia manawa i ka mīkini a me ka maʻalahi, pono e pololei ka nui o nā waiwai i hoʻopaʻa ʻia, no ka mea, pili kēia i ka hiki o ka huahana a me ka hoʻokele waiwai.
Hoʻohana ka hapa nui o nā hale hana i nā laina hui piha piha i kēia kūlana. He mea koʻikoʻi ka ʻōnaehana PLC i ka hana maʻalahi o kēia laina hui. Ma muli o ka holomua ʻana o ka ʻenehana, kokoke i nā huahana a pau o nā mea hana mīkini paʻi kiʻi kiʻekiʻe e hōʻike ana i nā panela mana PLC, e hoʻohana ana iā lākou ma mua o ka wā ma mua.
Ua ʻōlelo ʻo Types o PLC
E like me ke ʻano o ka huahana a lākou e hana ai, ua hoʻokaʻawale ʻia nā PLC penei:
· Hoʻopuka transistor
· Hoʻopuka Triac
· Hoʻopuka hoʻokuʻu
Nā pōmaikaʻi o kahi ʻōnaehana PLC me kahi mīkini pahu
Aia kekahi manawa ʻaʻole kahi ʻōnaehana PLC i ʻāpana o ka mīkini paʻi, e like me ka mīkini hoʻopaʻa lima. No laila, pono nā mea hana hou e hōʻoia i ka hana ʻana. Eia nō naʻe, ua hoʻopōʻino ka hopena hope. Ua nui nā lilo o ka manawa a me ke kālā.


Eia nō naʻe, ua loli nā mea āpau me ka hiki ʻana mai o nā ʻōnaehana PLC i hoʻokomo ʻia i loko o ka mīkini pahu.
I kēia manawa, hiki i nā ʻōnaehana automation ke hana pū me ka ʻoi aku ka maikaʻi. Hiki iā ʻoe ke hoʻohana i ka ʻōnaehana PLC e kaupaona pololei i nā huahana, a laila hoʻopili iā lākou no ka hoʻouna ʻana. Eia kekahi, loaʻa i nā mīkini kahi pale mana PLC kahi āu e hoʻololi ai i kēia:
· ʻeke lōʻihi
· Ka māmā holo
· ʻeke kaulahao
· ʻŌlelo a me Code
· Mahana
· Nui aʻe
Hoʻokuʻu ia i nā kānaka a hana i nā mea āpau a maʻalahi hoʻi no lākou e hoʻohana.
Eia kekahi, kūkulu ʻia nā PLC i mau, no laila hiki iā lākou ke ʻae i nā kūlana koʻikoʻi, e like me ka wela kiʻekiʻe, ka uila uila, ka ea wai, a me ka neʻe ʻana. ʻAʻole like nā mea hoʻoponopono logic i nā kamepiula ʻē aʻe no ka mea hāʻawi lākou i ka hoʻokomo/puka nui (I/O) no ka hoʻomalu a nānā ʻana i nā mea hana a me nā mea ʻike.
Lawe pū kekahi ʻōnaehana PLC i nā pono ʻē aʻe he nui i ka mīkini pahu. ʻO kekahi o lākou:
ʻO ka maʻalahi o ka hoʻohana
ʻAʻole pono ka polokalamu kamepiula akamai e kākau i kahi code PLC. Hana ʻia ia i mea maʻalahi, a hiki iā ʻoe ke haku iā ia i loko o kekahi mau pule. No ka mea, hoʻohana ia:
· Nā kiʻi alapiʻi hoʻomalu relay
· olelo kauoha
ʻO ka mea hope loa, he intuitive a maʻalahi nā kiʻi alapiʻi e hoʻomaopopo a pili ma muli o ko lākou ʻano ʻike.
Hana hilinaʻi mau
Hoʻohana nā PLC i nā microcomputers hoʻokahi-chip, e hoʻohui nui iā lākou, me ka circuitry pale e pili ana a me nā hana ʻike ponoʻī e hoʻonui ai i ka hilinaʻi o ka ʻōnaehana.
He maʻalahi ka hoʻokomo
ʻOkoʻa i ka ʻōnaehana kamepiula, ʻaʻole pono kahi hoʻonohonoho PLC i kahi lumi kamepiula i hoʻolaʻa ʻia a i ʻole nā pale pale paʻakikī.
He hoʻonui wikiwiki
No ka hoʻokō ʻana o ka mana PLC ma o ka mana o ka papahana, ʻaʻole hiki ke hoʻohālikelike ʻia me ka relay logic control e pili ana i ka hilinaʻi a i ʻole ka wikiwiki o ka hana. No laila, e hoʻonui ka ʻōnaehana PLC i ka wikiwiki o kāu mīkini me ka hoʻohana ʻana i nā hoʻokomo akamai.
He haʻahaʻa kumu kūʻai
ʻO nā ʻōnaehana logic e pili ana i ka relay, i hoʻohana ʻia i ka wā ma mua, ʻoi aku ka nui o ke kumukūʻai i ka manawa. Ua hoʻomohala ʻia nā mea hoʻoponopono logic programmable ma ke ʻano he pani no nā ʻōnaehana hoʻokele relay.
ʻO ke kumukūʻai o ka PLC ua like ia me kahi hoʻolimalima hoʻokahi manawa, a ʻo ka mālama ʻana ma luna o nā ʻōnaehana relay-based, ʻoi aku ka nui o ka manawa hoʻoponopono pilikia, nā hola ʻenekinia, a me nā kumukūʻai hoʻonohonoho a mālama.
Ka pilina o nā ʻōnaehana PLC a me ka ʻoihana hoʻopili
E like me kāu i ʻike mua ai, hoʻokaʻawale nā ʻōnaehana PLC i nā mīkini paʻi; me ka ʻole o ka automation, hiki i ka mīkini hoʻopihapiha ke hāʻawi nui wale.
Hoʻohana nui ʻia ka PLC i ka ʻoihana paʻi ma ka honua holoʻokoʻa. ʻO ka maʻalahi o ka lawelawe ʻana e nā ʻenekinia kekahi o kāna mau pono. ʻOiai ua puni nā ʻōnaehana mana PLC no nā makahiki he mau makahiki, ua kūkulu ʻia ka hanauna o kēia manawa me ka hoʻohana ʻana i ka ʻenehana ʻoki. ʻO kahi laʻana o ka mīkini e hoʻohana ana i kēia ʻano ʻōnaehana hoʻokele ʻo ia ka mīkini paʻi paʻi kaulike linear. ʻO ka hoʻokomo ʻana i kahi ʻōnaehana mana PLC a me ka hoʻomaikaʻi ʻana i kona pono he mea nui ia o ka hapa nui o nā mea hana mīkini pahu.
No ke aha e hoʻohana ai nā mea hana mīkini pahu i kahi ʻōnaehana PLC?
ʻO ka hapa nui o nā mea hana mīkini pahu i kūkulu i kā lākou mau mīkini e kākoʻo i kahi ʻōnaehana PLC ma muli o nā kumu he nui. ʻO ka mea mua, lawe ia i ka automation i ka hale hana o ka mea kūʻai aku, e mālama ana i nā hola hana, ka manawa, nā mea maka, a me ka hoʻoikaika.
ʻO ka lua, hoʻonui ia i kāu huahana, a loaʻa iā ʻoe nā huahana hou aʻe ma ka lima, mākaukau e hoʻouna i kahi manawa pōkole.
ʻO ka mea hope loa, ʻaʻole ia he kumu kūʻai nui, a hiki i kahi ʻoihana hoʻomaka ke kūʻai maʻalahi i kahi mīkini pahu me nā mana PLC i kūkulu ʻia.
Nā hoʻohana ʻē aʻe o nā ʻōnaehana PLC
ʻO nā ʻoihana like ʻole e like me ke kila a me nā ʻāpana kaʻa, nā ʻoihana kaʻa a me nā ʻoihana kemika, a me ka ʻāpana mana e hoʻohana i nā PLC no nā kumu like ʻole. Hoʻonui nui ʻia ka pono o nā PLC e like me ka holomua o nā ʻenehana i hoʻohana ʻia.
Hoʻohana ʻia ʻo PLC i ka ʻoihana plastics e hoʻomalu i ka hoʻoheheʻe ʻana a me ka ʻōnaehana hoʻomalu mīkini corrugation, silo feeding, a me nā kaʻina hana ʻē aʻe.
ʻO ka mea hope loa, ʻo nā māla ʻē aʻe e hoʻohana ana i nā ʻōnaehana PLC e komo akā ʻaʻole i kaupalena ʻia i:
· ʻoihana aniani
· Nā mea kanu sima
· Mea hana pepa
Ka hopena
ʻO kahi ʻōnaehana PLC e hoʻomaʻamaʻa i kāu mīkini pahu a hāʻawi iā ʻoe e aʻo i nā hopena i makemake ʻia me ka maʻalahi. I kēia lā, ʻoi aku ka nui o nā mea hana mīkini pahu i ka hoʻokō ʻana i ka PLC i kā lākou mīkini pahu. Eia kekahi, lawe mai ʻo PLC i nā pono he nui i kāu mau mea hoʻopihapiha a hoʻokaʻawale i ke kaʻina hana ʻoiai e hōʻemi ana i nā kumukūʻai hana.
He aha kou manaʻo e pili ana i kahi ʻōnaehana PLC e pili ana i ka ʻoihana pale? Pono mau ka hoʻomaikaʻi ʻana?
ʻO ka mea hope loa, hiki iā Smart Weigh ke hāʻawi i kahi mīkini pahu i lako me PLC. Hiki i nā loiloi mai kā mākou mea kūʻai aku a me ko mākou kaulana i ka mākeke ke kōkua iā ʻoe e ana i ka maikaʻi o kā mākou huahana. No ka laʻana, ʻo kā mākou mīkini paʻi paʻi paona linear e hana maʻalahi a ʻoi aku ka maʻalahi o ke ola o ka hapa nui o nā mea nona ka hale hana. Hiki iā ʻoe ke kamaʻilio me mākou a i ʻole e noi i kahi ʻōlelo FREE i kēia manawa. Mahalo no ka heluhelu!
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