Dab tsi yog qhov Serial Port?
Ib qho chaw nres nkoj serial feem ntau suav nrog cov hauv qab no:
Cov ntaub ntawv kab:Muaj feem ntau tsuas yog ib kab cov ntaub ntawv serial rau kev xa cov ntaub ntawv.
Tswj kab:Qhov chaw nres nkoj serial kuj suav nrog qee cov kab tswj kev tswj cov ntaub ntawv xa mus, xws li Thov Xa (RTS), Cov Ntaub Ntawv Npaj Npaj (DSR), Cov Ntaub Ntawv Npaj Npaj (DTR), thiab Cov Ntaub Ntawv Pov Hwm (DCD).
Baud Rate:baud tus nqi ntawm qhov chaw nres nkoj serial yog hais txog qhov ceev ntawm cov ntaub ntawv xa mus, feem ntau ntsuas los ntawm tus lej ntawm cov khoom xa mus ib ob, xws li 9600, 19200, 38400, thiab lwm yam.
Cov ntaub ntawv: Cov ntaub ntawv me yog hais txog tus naj npawb ntawm cov khoom siv rau txhua tus cim. Feem ntau, cov ntaub ntawv me ntsis tuaj yeem yog 5, 6, 7, lossis 8 khoom.
Parity ntsis:Lub parity ntsis yog siv los xyuas qhov tseeb ntawm cov ntaub ntawv xa mus. Cov txheej txheem parity feem ntau muaj xws li khib parity, txawm parity, thiab tsis muaj parity.
Nres Nres:Qhov nres me ntsis yog xa me ntsis ntawm qhov kawg ntawm txhua tus cim kis. Feem ntau, qhov nres me ntsis yog 1 lossis 2 ntsis.
Cov hom ntawm cov chaw nres nkoj serial feem ntau yog qhov txawv ntawm lawv txoj kev sib txuas ntawm lub cev thiab cov yam ntxwv ntawm hluav taws xob. Cov nram qab no yog hom serial ports:
RS - 232 Serial Chaw nres nkoj
RS - 232 serial chaw nres nkoj yog hom serial chaw nres nkoj ntau tshaj plaws. Nws yog tus qauv serial kev sib txuas lus interface, dav siv rau cov ntaub ntawv xa mus ntawm computers thiab lwm yam khoom siv. RS - 232 yog tus qauv tsim los ntawm Lub Tsev Haujlwm Hluav Taws Xob thiab Hluav Taws Xob Hluav Taws Xob (IEEE), uas txhais tau hais tias cov hluav taws xob thiab cov khoom siv hluav taws xob hauv kev sib txuas lus, suav nrog cov ntaub ntawv xa mus, cov ntaub ntawv me, parity ntsis, nres me ntsis, tswj cov teeb liab, thiab lwm yam.
RS - 232 serial chaw nres nkoj feem ntau siv DB9 lossis DB25 connector, thiab nws qhov kev sib kis feem ntau tsis tshaj 50 ko taw (kwv yees li 15 meters).
RS - 232 serial chaw nres nkoj siv peb lub teeb liab sib txawv: kab sib kis, kab txais tos, thiab kab hauv av. Cov kab xa tawm yog siv los xa cov ntaub ntawv los ntawm lub computer mus rau cov khoom siv sab nraud, cov kab txais tos yog siv los txais cov ntaub ntawv los ntawm cov khoom siv sab nraud mus rau lub computer, thiab cov kab hauv av yog siv los txuas rau hauv av ntawm lub voj voog.
RS - 232 serial chaw nres nkoj kuj suav nrog qee cov cim kev tswj hwm, xws li Cov Ntaub Ntawv Xa Khoom Npaj Npaj (DTR), Thov Xa (RTS), Cov Ntaub Ntawv Npaj Npaj (DSR), thiab Clear To Xa (CTS). Cov kev tswj cov teeb liab no tuaj yeem siv los tswj cov kev taw qhia ntawm cov ntaub ntawv ntws, pib thiab xaus ntawm kev sib kis, thiab lwm yam.
Hom chaw nres nkoj no tshwm sim hauv cov qauv hauv qab no ntawm peb lub tuam txhab: X30G-3805U, X31G-i3 4010U, thiab lwm yam.
RS - 485 Serial Chaw nres nkoj
RS - 485 serial chaw nres nkoj yog tus qauv serial kev sib txuas lus interface, feem ntau yog siv rau ntev - cov ntaub ntawv kis tau tus mob. RS - 485 yog tus qauv tsim los ntawm Lub Tsev Haujlwm Hluav Taws Xob thiab Hluav Taws Xob Hluav Taws Xob (IEEE), uas txhais tau hais tias cov hluav taws xob thiab cov khoom siv hluav taws xob hauv kev sib txuas lus, suav nrog cov ntaub ntawv xa mus, cov ntaub ntawv me, parity ntsis, nres me ntsis, tswj cov teeb liab, thiab lwm yam.
RS - 485 serial chaw nres nkoj siv cov teeb liab sib txawv. Nws siv ob lub teeb liab kab (A kab thiab B kab) xa cov ntaub ntawv, thiab xa cov ntaub ntawv los ntawm kev sib piv qhov sib txawv voltage ntawm ob lub teeb liab kab. Sib txawv ntawm RS - 232 serial chaw nres nkoj, RS - 485 serial chaw nres nkoj tuaj yeem txhawb nqa ntau yam khoom siv los txuas rau tib lub npav, thiab tuaj yeem paub ntau - taw tes kev sib txuas lus. Nws tuaj yeem txhawb nqa txog 32 cov khoom siv sib txuas lus ib txhij.
RS - 485 serial chaw nres nkoj tuaj yeem pab txhawb kev sib kis ntev dua, mus txog 1200 meters, thiab tus nqi sib kis kuj tseem ceev, mus txog 10Mbps. Tsis tas li ntawd, RS - 485 serial chaw nres nkoj kuj txhawb nqa ib nrab - duplex thiab puv - duplex ua haujlwm hom, uas tuaj yeem teeb tsa raws li kev thov tiag tiag.
Txhawm rau kom ntseeg tau tias cov ntaub ntawv xa mus tau zoo, feem ntau yuav tsum tau siv cov cuab yeej pabcuam xws li lub davhlau ya nyob twg resistors thiab cov teeb liab cais ntawm RS - 485 npav. Vim qhov zoo ntawm kev sib kis ntev, kev sib kis ceev ceev, thiab kev txhawb nqa rau ntau - taw tes kev sib txuas lus, RS - 485 serial chaw nres nkoj yog dav siv hauv kev lag luam tswj, automation tswj, kev saib xyuas kev ruaj ntseg thiab lwm yam.
Hom chaw nres nkoj serial tshwm nyob rau hauv cov qauv hauv qab no ntawm peb lub tuam txhab: X30-J6412, X31G-I7-4600U, thiab lwm yam.
TTL Serial Chaw nres nkoj
TTL serial chaw nres nkoj yog hais txog kev sib txuas lus sib txuas uas siv TTL (Transistor - Transistor Logic) logic theem, feem ntau yog siv rau cov ntaub ntawv xa mus ntawm ib qho - nti microcomputer thiab cov khoom siv sab nraud. Sib txawv ntawm RS - 232 thiab RS - 485 serial chaw nres nkoj, nws cov lus qhia tsis yog tsim los ntawm lub koom haum tsim qauv, tab sis yog tsim los ntawm txhua lub chaw tsim khoom chip raws li lawv tus kheej xav tau.
TTL serial chaw nres nkoj siv ib kab teeb liab (TX kab thiab RX kab) rau kev xa cov ntaub ntawv, qhov twg TX kab yog siv rau ib leeg - nti microcomputer xa cov ntaub ntawv, thiab RX kab yog siv rau tib - nti microcomputer kom tau txais cov ntaub ntawv. Cov ntaub ntawv xa tawm tus nqi ntawm TTL qhov chaw nres nkoj yog qhov nrawm, feem ntau ncav cuag kaum ob kbps lossis ntau pua kbps, tab sis qhov kev sib kis tau luv luv, feem ntau tsis tshaj kaum tawm meters.
Qib logic ntawm TTL qhov chaw nres nkoj feem ntau yog 0V thiab 5V, qhov twg 0V sawv cev rau logic "0" thiab 5V sawv cev rau logic "1". Hauv kev siv cov tswv yim, txij li cov qib logic ntawm cov khoom siv sab nraud thiab ib qho - nti microcomputer tej zaum yuav txawv, nws yog ib qho tseem ceeb kom paub txog qhov sib txuam ntawm cov qib logic los ntawm qib hloov pauv lossis lwm txoj hauv kev.
USB Serial Chaw nres nkoj
USB serial chaw nres nkoj yog hais txog kev sib txuas lus sib txuas lus pom tau los ntawm USB (Universal Serial Bus) interface, feem ntau yog siv los txuas cov chaw nres nkoj ib txwm siv (xws li RS - 232, RS - 485 serial ports) rau lub computer lossis lwm lub USB hosts. USB serial chaw nres nkoj tseem hu ua USB - rau - serial chaw nres nkoj lossis USB - rau - RS - 232/RS {- 485. USB serial chaw nres nkoj kuj tuaj yeem siv los ntawm USB tsheb npav yam tsis muaj hluav taws xob sab nraud, uas yooj yim rau nqa thiab siv.
USB serial chaw nres nkoj feem ntau yuav tsum tau paub los ntawm USB - rau - serial chaw nres nkoj nti. Lub nti sab hauv muaj cov haujlwm xws li USB interface controller, serial chaw nres nkoj maub los, thiab cov ntaub ntawv tsis. Los ntawm cov ntaub ntawv hloov dua siab tshiab ntawm USB interface thiab serial chaw nres nkoj maub los, cov ntaub ntawv xa tawm ntawm USB thiab qhov chaw nres nkoj serial tuaj yeem pom tau.
USB serial chaw nres nkoj feem ntau yog siv los txuas ntau yam khoom siv chaw nres nkoj, xws li serial port printers, serial port card readers, serial port cameras, serial port debugging tools, thiab lwm yam.
Ethernet Serial Chaw nres nkoj
Ethernet serial chaw nres nkoj yog qhov chaw nres nkoj serial uas txhawb TCP / IP raws tu qauv thiab xa cov ntaub ntawv los ntawm kev sib txuas hauv network. Qhov chaw nres nkoj serial no tuaj yeem siv tau ntev - nrug thiab siab - ceev cov ntaub ntawv xa mus. Ethernet serial chaw nres nkoj yog ib lub tshuab uas txuas cov chaw nres nkoj serial (xws li sensors, controllers, thiab lwm yam) rau lub computer lossis lwm yam khoom siv hauv network los ntawm Ethernet. Nws hloov cov kev sib txuas lus ib txwm siv rau hauv Ethernet cov ntaub ntawv ntws kom paub txog kev saib xyuas thiab tswj cov chaw taws teeb.
Ethernet serial chaw nres nkoj feem ntau yuav tsum tau siv cov khoom siv tshwj xeeb (xws li Ethernet serial port server) thiab software kom paub. Ethernet serial chaw nres nkoj neeg rau zaub mov yog ib tug tshwj xeeb ntaus ntawv uas txuas serial chaw nres nkoj pab kiag li lawm rau lub Ethernet thiab muab ib tug virtual serial chaw nres nkoj interface. Qhov chaw nres nkoj virtual no tuaj yeem nkag tau los ntawm lub computer lossis lwm yam khoom siv hauv network xws li chaw nres nkoj hauv zos, paub txog kev nkag mus rau cov chaw taws teeb thiab tswj.
Siv Ethernet serial chaw nres nkoj thev naus laus zis, kev tswj cov chaw taws teeb thiab kev tswj hwm ntawm cov khoom siv serial chaw nres nkoj tuaj yeem ua tiav yam tsis muaj ntawm - qhov chaw teeb tsa thiab kev ua haujlwm. Tsis tas li ntawd, Ethernet serial chaw nres nkoj tseem tuaj yeem muab cov haujlwm xws li kev tswj xyuas cov chaw taws teeb tswj thiab khaws cov ntaub ntawv, uas yooj yim rau kev saib xyuas thiab tswj.
Ethernet serial chaw nres nkoj feem ntau yog siv hauv kev lag luam automation, kev saib xyuas tej thaj chaw deb, sau cov ntaub ntawv thiab lwm yam. Piv txwv li, hauv kev lag luam automation, cov khoom siv xws li sensors thiab controllers feem ntau yuav tsum tau saib xyuas thiab tswj xyuas. Ethernet serial chaw nres nkoj thev naus laus zis tuaj yeem txuas cov cuab yeej no mus rau Ethernet kom paub txog cov chaw taws teeb nkag thiab tswj, txhim kho kev tsim khoom thiab txo cov nqi.
Bluetooth Serial Chaw nres nkoj
Bluetooth serial chaw nres nkoj yog wireless serial kev sib txuas lus raws tu qauv raws li Bluetooth technology. Nws tuaj yeem paub txog kev sib txuas lus wireless serial, uas yog, txuas cov txheej txheem kev sib txuas lus ib txwm muaj (xws li RS - 232) mus rau lwm lub cuab yeej los ntawm Bluetooth, xws li lub xov tooj ntse, ntsiav tshuaj, lossis khoos phis tawj.
Los ntawm Bluetooth serial chaw nres nkoj, wireless cov ntaub ntawv kis tau tus mob tuaj yeem pom tau. Cov ntaub ntawv kis tau tus mob feem ntau yog hais txog 1Mbps, uas tuaj yeem siv rau kev sib txuas lus luv luv -, thiab kev sib txuas lus feem ntau yog li 10 meters. Tsis tas li ntawd, Bluetooth thev naus laus zis kuj muaj qhov zoo ntawm kev siv hluav taws xob tsawg thiab tus kheej - kev sib txuas, thiab tuaj yeem siv rau ntau yam khoom siv hluav taws xob tsawg -.
Ua ntej siv lub Bluetooth serial chaw nres nkoj, lub Bluetooth serial chaw nres nkoj adapter yuav tsum tau muab tso rau hauv lub serial chaw nres nkoj ntaus ntawv, thiab ces lub adapter yog ua ke nrog rau lwm yam ntaus ntawv (xws li lub xov tooj ntawm tes, ntsiav tshuaj, los yog lub computer). Thaum kev sib txuas ua tiav, ob lub cuab yeej tuaj yeem sib txuas lus zoo li cov khoom siv hauv chaw nres nkoj.
Lub Bluetooth serial chaw nres nkoj feem ntau yog siv rau cov ntaub ntawv kis tau tus mob thiab kev tswj ntawm ntau yam wireless li, xws li Bluetooth serial chaw nres nkoj printers, Bluetooth serial chaw nres nkoj sensors, Bluetooth serial chaw nres nkoj chaw taws teeb tswj, thiab lwm yam. Piv txwv li, nyob rau hauv cov tsev ntse, Bluetooth serial chaw nres nkoj technology yuav txuas cov cuab yeej xws li sensors thiab actuators rau cov xov tooj ntse kom paub wireless chaw taws teeb tswj thiab saib xyuas. Hauv kev kho mob, Bluetooth serial chaw nres nkoj thev naus laus zis tuaj yeem siv los txuas cov cuab yeej kho mob rau cov khoom siv txawb kom paub txog kev saib xyuas thiab tswj cov chaw taws teeb wireless.
Ntau yam ntawm cov chaw nres nkoj serial muaj lawv tus kheej qhov zoo thiab qhov tsis zoo hauv cov ntawv thov sib txawv. Thaum xaiv qhov chaw nres nkoj serial, nws yog qhov yuav tsum tau xaiv raws li qhov xav tau tiag tiag.