Video: PLC yuam kev txhais li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A PLC kev sib txuas lus yuam kev tshwm sim thaum lub PLC tsis teb cov lus thov kev sib txuas lus lossis teb tsis zoo rau cov lus thov. A PLC kev sib txuas lus yuam kev tuaj yeem tshwm sim ntawm lub khoos phis tawj programmable thiab cov khoom siv uas nws tswj tau lossis thaum tus kws tshaj lij sim ua cov cuab yeej los ntawm qhov deb.
Piv txwv li, dab tsi ua rau PLC ua txhaum?
Feem ntau vim li cas vim li cas PLC tswj systems tsis muaj xws li module tsis ua hauj lwm, fais fab tuag thiab tsis zoo network kev twb kev txuas. PLC Cov teeb meem tsis ua hauj lwm kuj tuaj yeem tshwm sim los ntawm overheating, noo noo thiab cuam tshuam electromagnetic.
Kuj Paub, PLC txuas yog dab tsi? PLC - Txuas yog Delta raws tu qauv los qhia qhov chaw nco tau yooj yim ntawm 2 PLC cov . Tsis tas li ntawd, koj tuaj yeem siv Delta PLC raws li tej thaj chaw deb I/O lossis lwm yam khoom siv Delta (Servodrive, Inverter, thiab lwm yam..) vim tias cov txheej txheem siv los qhia cov ntaub ntawv yog Modbus. Niaj hnub no peb yuav tsom mus rau kev sib txuas lus li cas PLC master nrog 2 PLC qhev.
Ib yam li ntawd, koj yuav paub li cas yog PLC tsis zoo?
Ua ntej, xyuas tias cov PLC tau txais lub zog txaus los ntawm lub transformer los muab tag nrho cov loads. Yog tus PLC tseem tsis tau ua haujlwm, xyuas seb qhov khoom siv hluav taws xob poob qis hauv qhov kev tswj xyuas hluav taws xob lossis rau lub tshuab hluav taws xob. Yog tus PLC tsis tuaj txawm tias muaj lub hwj chim tsim nyog, ces qhov teeb meem nyob hauv CPU, thiab qhov no yog heev phem.
Dab tsi ua rau PLC muaj txiaj ntsig?
Yog li ntawd, cov tub ntxhais kawm kev kawm yog ob qho tib si hauv paus thiab pov thawj ntawm ib qho muaj txiaj ntsig PLC . PLCs yog lub voj voog tsim kev paub. Hauv txhua lub rooj sib tham cov kws qhia ntawv tshuaj xyuas qhov lawv tau kawm, ntsuas qhov cuam tshuam ntawm cov tswv yim uas lawv tau siv, thiab txiav txim siab seb qhov kev kawm tshiab twg yog qhov tsim nyog los txhawb cov tub ntxhais kawm tau txais txiaj ntsig.
Pom zoo:
Dab tsi yog qhov sib txawv loj ntawm kev txheeb xyuas qhov yuam kev thiab kev kho cov lej yuam kev?
Ob qhov kev tshawb nrhiav qhov yuam kev thiab kev kho qhov yuam kev yuav tsum muaj qee qhov ntawm cov ntaub ntawv rov qab xa mus nrog cov ntaub ntawv tiag tiag; kev kho yuav tsum muaj ntau tshaj li kev tshawb nrhiav. Parity bits yog ib txoj hauv kev yooj yim rau kev tshawb nrhiav qhov yuam kev. Ib qho parity me ntsis yog ib qho ntxiv me ntsis xa nrog cov ntaub ntawv uas tsuas yog 1-ntsis suav ntawm cov ntaub ntawv
Kev sau ntawv yuam kev txhais li cas lub koob yees duab digital?
Qhov yuam kev ntawm daim npav nco cuam tshuam rau lub koob yees duab lub peev xwm sau rau hauv daim npav nco khaws cov duab. Qhov no txhais tau tias koj lub koob yees duab tsis muaj txiaj ntsig zoo. Muaj ntau yam sib txawv uas koj tuaj yeem ua los kho qhov yuam kev no
Koj txhais li cas los ntawm tus yuam sij ntiag tug thiab pej xeem tus yuam sij cryptography?
Nyob rau hauv pej xeem tus yuam sij cryptography, ob tus yuam sij yog siv, ib tug yuam sij yog siv rau encryption thiab thaum lwm yam yog siv rau decryption. 3. Nyob rau hauv private keycryptography, tus yuam sij yog khaws cia tsis pub leejtwg paub. Nyob rau hauv pej xeem tus yuam sij cryptography, ib qho ntawm ob tus yuam sij yog khaws cia tsis pub leejtwg paub
Vim li cas kev cob qhia yuam kev tsawg dua qhov kev xeem yuam kev?
Kev cob qhia yuam kev feem ntau yuav tsawg dua qhov kev xeem yuam kev vim tias tib cov ntaub ntawv siv los ua kom haum tus qauv yog ua haujlwm los ntsuas nws qhov kev kawm yuam kev. Ib feem ntawm qhov tsis sib xws ntawm qhov kev cob qhia yuam kev thiab qhov kev xeem yuam kev yog vim tias cov txheej txheem kev cob qhia thiab cov ntawv xeem muaj qhov sib txawv ntawm cov khoom siv
Leej twg tsim qhov yuam kev ntawm qhov yuam kev?
Lub sij hawm tseem ceeb ntawm qhov yuam kev raug tsim nyob rau xyoo 1977 los ntawm tus kws kho mob hlwb Lee Ross. Txawm li cas los xij, kev tshawb fawb txog qhov yuam kev tseem ceeb rov qab mus rau xyoo 1950 thaum cov kws paub txog kev puas siab puas ntsws Fritz Heider thiab Gustav Ichheiser pib tshawb xyuas cov neeg nkag siab txog qhov ua rau tib neeg tus cwj pwm