Ukwahlula njani phakathi kweNPN kunye nePNP? Indlela yokudibanisa kwi-PLC?

Ukwahlula njani phakathi kweNPN kunye nePNP? Indlela yokudibanisa kwi-PLC?

Izixhobo zeNPN kunye nePNP kunye neSiemens PLC uQhagamshelwano kunye noKhetho

Ii-Sensors zingahlelwa zibe ziintlobo ezimbini eziphambili ngokusekelwe kwiintlobo zazo zemveliso: i-NPN (eyaziwa ngokuba ngumthombo-uhlobo lwezinzwa) kunye ne-PNP (ekwabizwa ngokuba yi-sink - type sensors). Zombini iintlobo zabenzi boluvo zinezikhokelo ezintathu, ezidityaniswe kwi-24V, 0V, kunye ne-Out (imveliso yesignali). Ngoko ke, zeziphi iintlobo zeenzwa ezixhaswa yi-Siemens S7 series PLCs?

Iintlobo zeeSensors ezixhaswa yi-Siemens PLCs kunye neeModyuli

Ii-Sensors ezixhaswa yi-Siemens S7 - 200 : Ii-terminal ze-input ze-S7 - 200 zechungechunge zixhasa zombini umthombo - uhlobo kunye ne-sink - uhlobo lwe-sensors, oku kuthetha ukuba banokudibaniswa nokuba ngaba i-NPN okanye i-PNP sensors.

Ii-Sensors ezixhaswa yi-Siemens S7 - 200smart : Ngokufana ne-S7 - 200, i-S7 - 200smart's input terminals ixhasa zombini i-sink - uhlobo kunye nomthombo - uhlobo lwe-sensors, evumela uxhulumaniso kwi-NPN kunye ne-PNP sensors.

Ii-Sensors ezixhaswa yi-Siemens S7 - 1200 : I-S7 - 1200's i-input terminals ixhasa zombini i-sink - uhlobo kunye nomthombo - uhlobo lwe-sensor, oluvumela uxhulumaniso nokuba yi-NPN okanye i-PNP sensors.

IiSensors ezixhaswa yi-Siemens S7 - 300 : I-S7 - 300 ineemodyuli ezahlukeneyo ze-DI, kwaye uhlobo lwenzwa abayixhasayo kufuneka luhlolwe kwi-hardware configuration ngokusekelwe kwiiparameters.

Uninzi lweemodyuli ze-DI ze-S7 - 300 ziyi-sink - uhlobo (i-PNP sensors kufuneka zikhethwe) : Kwi-hardware yoqwalaselo, akukho ncedo lomthombo okanye uhlobo lwe-sink, oluthetha ukuba alugqibekanga ukutshona - uhlobo. Umzekelo, imodyuli ye-321 - 1BL00.

Umthombo - uhlobo lweemodyuli ze-DI ze-S7 - 300 (ii-NPN sensors kufuneka zikhethwe) : Umzekelo, imodyuli ye-6ES7 321 - 1BH50 - 0AA0.

Iimodyuli ze-Universal DI ezixhasa zombini iintlobo zomthombo kunye ne-sink (zombini i-NPN kunye ne-PNP sensors zingasetyenziswa) : Umzekelo, imodyuli ye-6ES7 321 - 1BP00 - 0AA0.

Iinzwa ezixhaswa yi-Siemens S7 - 1500 : Iimodyuli ze-DI ezikhoyo ngoku kwi-S7 - 1500 series ziquka i-sink - uhlobo lweemodyuli ezixhasa i-PNP sensors kunye nomthombo - iimodyuli zohlobo oluxhasa i-NPN sensors.

I-Sink - uhlobo lweemodyuli ze-DI (i-PNP sensors) : Umzekelo, imodyuli ye-6ES7 523 - 1BL00 - 0AA0.

Umthombo - uhlobo lweemodyuli ze-DI (i-NPN sensors) : Umzekelo, imodyuli ye-6ES7 131 - 6BF60 - 0AA0.

Iindlela zocingo zeNPN kunye nePNP Sensors

Ukuqonda i-Input Terminal Types of PLCs : Iinkcazelo zomthombo - uhlobo kunye ne-sink - uhlobo lwe-Siemens PLC ye-input terminals isekelwe kwisalathiso sokuhamba kwangoku kwi-I - point ye-terminal ye-PLC. (Qaphela: Oku kuchasene nenkcazelo esetyenziswa yiMitsubishi PLCs, esekelwe kwicala lokuhamba kwangoku kwi-terminal ye-COM.)

Umthombo - uhlobo : Xa umsinga uphuma kwindawo ye-I, ithathwa njengomthombo wangoku.

I-Sink - uhlobo : Xa i-current igeleza kwi-I - point, ithathwa njengendawo yokuya kuyo yangoku.

Ukuqhagamshela i-NPN Sensors kwi-PLC (Umthombo - uhlobo lwe-Input ye-Siemens PLC) : Ukuhamba kwangoku: 24V + → i-terminal ye-COM → I0.0 (iphuma ngoku kwi-I-point) → i-terminal yesivamvo → isivamvo se-terminal 0V → 0V.

Ukuqhagamshela i-PNP Sensors kwi-PLC (Isinki - uhlobo lweNgeniso ye-Siemens PLC) : Ukuhamba kwangoku: 24V + → isivamvo 24V → isivamvo se-terminal → I0.0 (iqukuqela langoku kwi-I-point) → COM → 0V.

Ukuhlelwa kweeSensors

I-NPN (Umthombo - uhlobo) : Xa ivuliwe, ikhupha isignali yezinga eliphantsi.

I-NPN - HAYI ( Ngokuqhelekileyo ivuliwe) : Akukho mveliso xa ingasebenzi; ikhupha isignali yomgangatho ophantsi xa ivuliwe.

I-NPN - NC (Evalwe Ngokuqhelekileyo) : Ikhupha isignali yezinga eliphantsi xa ingasebenzi; akukho mveliso xa ivuliwe.

I-NPN - NC + NO (Idityaniswe Ngokuqhelekileyo iVulekile kwaye ivalwe ngokuqhelekileyo) : Ii-terminals ezimbini zokuphuma (enye ivulekile, enye ivaliwe).

I-PNP (I-Sink - uhlobo) : Xa ivuliwe, ikhupha uphawu oluphezulu.

I-PNP - HAYI ( Ngokuqhelekileyo ivuliwe) : Akukho mveliso xa ingasebenzi; ikhupha isignali yomgangatho ophezulu xa ivuliwe.

I-PNP - NC (Eqhelekileyoly Valiwe) : Ikhupha isignali yomgangatho ophezulu xa ingavulwanga; akukho mveliso xa ivuliwe.

I-PNP - NC + NO (Idityaniswe Ngokuqhelekileyo iVulekile kwaye ivalwe ngokuqhelekileyo) : Ii-terminals ezimbini zokuphuma (enye ivulekile, enye ivaliwe).

Umahluko osisiseko phakathi kwe-PNP kunye ne-NPN Sensors

I-PNP kunye ne-NPN abenzi boluvo bobabini batshintsha-uhlobo lwe-sensor ezisebenzisa i-saturation kunye ne-cutoff ye-transistors ukukhupha amazwe amabini. Nangona kunjalo, izibonakaliso zemveliso zichasene: I-NPN ikhupha isignali yezinga eliphantsi (0V), ngelixa i-PNP ikhupha umgangatho ophezulu (24V).

I-PNP kunye ne-NPN sensors zihlelwe kwiindidi ezintandathu:

NPN-HAYI (Ngesiqhelo ivuliwe)

NPN - NC (Ngesiqhelo Ivalwe)

I-NPN - NC + NO (Idityaniswe Ngokuqhelekileyo iVuliwe kwaye ivalwe ngesiqhelo)

I-PNP-HAYI (Ngesiqhelo ivuliwe)

I-PNP - NC (Ngesiqhelo Ivalwe)

I-PNP - NC + NO (Idityaniswe Ngokuqhelekileyo iVuliwe kwaye ivalwe ngokuqhelekileyo)

Iinzwa ze-PNP kunye ne-NPN ngokuqhelekileyo zinezikhokelo ezintathu: umgca wokubonelela ngombane (VCC), umgca we-0V, kunye nomgca wokuphuma kwesignali.

Uhlobo lwe-PNP : Xa uqhutywe, umgca wokuphuma udibanisa kumgca wokubonelela ngombane (VCC), ukhupha uphawu oluphezulu.

PNP - HAYI : Umgca wokuphuma uvuliwe (unqanyuliwe kwi-VCC) xa ungaqhutywa. Xa iqhutywe, ikhupha i-voltage efanayo ne-VCC yombane wombane (uphawu oluphezulu).

I-PNP - NC : Umgca wokuphuma uqhagamshelwe kumgca wokubonelela umbane weVCC (ukhupha uphawu oluphezulu) xa ungaqalisi. Xa ukuqaliswa, umgca wokuphuma uvuliwe (uqhawulwe kwiVCC).

PNP - NC + NO : Ine-terminal eyongezelelweyo ephumayo, enokusetyenziswa njengoko kufuneka.

Uhlobo lwe-NPN : Xa uqhutywe, umgca wokuphuma udibanisa kumgca we-0V, ukhupha isignali yezinga eliphantsi.

NPN - HAYI : Umgca wokuphuma uvuliwe (unqanyuliwe kwi-0V) xa ungaqhutywa. Xa iqhutywe, ikhupha i-voltage efanayo njengomgca we-0V (umgangatho ophantsi-uphawu).

I-NPN - NC : Umgca wokuphuma uqhagamshelwe kumgca we-0V (ukhupha isignali yezinga eliphantsi) xa ungashukunyiswa. Xa ukuqaliswa, umgca wokuphuma uvuliwe (unqanyuliwe kwi-0V).

NPN - NC + NO : Ngokufana neNPN - NC + NO, ine-terminal eyongezelelweyo ephumayo, enokusetyenziswa njengoko kufuneka.

Abenzi boluvo be-NPN bakhupha isignali yezinga eliphantsi (0V), ngelixa i-PNP ikhupha i-high-level signal (24V).

Ngokomzekelo, ukuba i-sensor yamandla i-24V, i-sensor ye-NPN iya kukhupha i-0V, ngelixa i-sensor ye-PNP iya kukhupha i-24V.

Xa uqhagamshela kwigalelo le-PLC, ukuba sisiphumo seNPN, i-terminal ye-PLC ye-COM kufuneka iqhagamshelwe kwi-24V. Ngokwahlukileyo, ukuba yimveliso ye-PNP, i-terminal ye-PLC yokufaka kufuneka iqhagamshelwe kwi-0V.

Into ephambili kukuqonda ukuba i-PNP kunye neNPN imele ntoni. U-P umele u-positive, kwaye u-N umele negative. I-PNP ibonisa umqondiso wezinga eliphezulu phantsi kweemeko eziqhelekileyo, kwaye umqondiso uba mbi xa uqhutywe. I-NPN ibonisa isignali yezinga eliphantsi phantsi kweemeko eziqhelekileyo, kwaye isignali iba yinqanaba eliphezulu xa iqhutywe. Isiphumo sokutshintsha okusondeleyo kunye nokutshintsha kweefoto zombane kuyafana, kodwa iisekethe zabo zokufumanisa ziyahluka. Ngokuphathelele kwi-PLC wiring, iindidi zeNPN zisetyenziswa rhoqo. Uninzi lwee-PLC zaseJapan eTshayina ziluhlobo lwehlabathi okanye lwehlabathi jikelele, olunokusebenzisa ngokuthe ngqo izinzwa zeNPN. I-terminal evumayo ye-proximity switch kunye ne-photoelectric switch power supply iqhagamshelwe kunikezelo lwamandla olulungileyo, i-terminal engalunganga iqhagamshelwe kwi-terminal eqhelekileyo, kwaye isiphumo siqhagamshelwe kwi-terminal ye-PLC.

Isishwankathelo, kutshintsho - ubungakanani besekethe yegalelo le-PLCs, ii-PLC zaseJapan zeMitsubishi PLC zibonakala zisebenza ngakumbi kwaye zithembekile kunezinye ii-PLC ezaziwa kakhulu njenge-Siemens. Esona sizathu sikukuba ii-PLC zaseJapan, eziquka iMitsubishi, zilwenze ngcono uyilo olulufundileyo