Ungahlukanisa kanjani i-NPN ne-PNP? Ungawaxhuma kanjani ku-PLC?

Ungahlukanisa kanjani i-NPN ne-PNP? Ungawaxhuma kanjani ku-PLC?

I-NPN kanye namadivayisi we-PNP kanye ne-Siemens PLC Connection and Selection

Izinzwa zingahlukaniswa zibe izinhlobo ezimbili ezinkulu ngokusekelwe ezinhlotsheni zazo zokuphumayo: i-NPN (eyaziwa nangokuthi izinzwa zohlobo lomthombo) kanye ne-PNP (eyaziwa nangokuthi izinzwa zohlobo lukasinki). Zombili izinhlobo zezinzwa zinemikhondo emithathu, exhunywe ku-24V, 0V, kanye ne-Out (okukhipha isignali). Ngakho-ke, yiziphi izinhlobo zezinzwa ezisekelwa i-Siemens S7 series PLCs?

Izinhlobo zezinzwa ezisekelwa ama-Siemens PLC namamojula

Izinzwa Ezisekelwa I-Siemens S7 - 200 : Amatheminali okokufaka ochungechunge lwe-S7 - 200 asekela kokubili izinzwa zomthombo - uhlobo nosinki, okusho ukuthi zingaxhunywa kuzinzwa ze-NPN noma ze-PNP.

Izinzwa Ezisekelwa I-Siemens S7 - 200smart : Ngokufanayo ne-S7 - 200, amatheminali okokufaka we-S7 - 200smart asekela kokubili izinzwa zosinki - uhlobo nomthombo - uhlobo, okuvumela ukuxhumana kuzo zombili izinzwa ze-NPN ne-PNP.

Izinzwa Ezisekelwa I-Siemens S7 - 1200 : Amatheminali okokufaka we-S7 - 1200 asekela kokubili izinzwa zosinki - uhlobo nomthombo - uhlobo, okunika amandla uxhumano kuzinzwa ze-NPN noma ze-PNP.

Izinzwa ezisekelwa yi-Siemens S7 - 300 : I-S7 - 300 inezinhlobonhlobo zamamojula we-DI, futhi uhlobo lwenzwa abayisekelayo ludinga ukuhlolwa ekucushweni kwehadiwe ngokusekelwe kumingcele.

Amamojula amaningi e-DI e-S7 - 300 awusinki - uhlobo (izinzwa ze-PNP kufanele zikhethwe) : Ekucushweni kwehadiwe, akukho saziso sohlobo lomthombo noma losinki, okusho ukuthi zizenzakalelayo ukucwila - uhlobo. Isibonelo, imojula ye-321 - 1BL00.

Umthombo - thayipha amamojula e-DI we-S7 - 300 (izinzwa ze-NPN kufanele zikhethwe) : Isibonelo, imojula ye-6ES7 321 - 1BH50 - 0AA0.

Amamojula we-Universal DI asekela zombili izinhlobo zomthombo nezosinki (zombili izinzwa ze-NPN ne-PNP zingasetshenziswa) : Isibonelo, imojula 6ES7 321 - 1BP00 - 0AA0.

Izinzwa Ezisekelwe I-Siemens S7 - 1500 : Amamojula e-DI atholakalayo njengamanje ochungechungeni lwe-S7 - 1500 ahlanganisa amamojula ohlobo lwe-sink asekela izinzwa ze-PNP namamojula ohlobo lomthombo - asekela izinzwa ze-NPN.

Usinki - thayipha amamojula e-DI (izinzwa ze-PNP) : Isibonelo, imojula ye-6ES7 523 - 1BL00 - 0AA0.

Umthombo - thayipha amamojula e-DI (izinzwa zeNPN) : Isibonelo, imojula ye-6ES7 131 - 6BF60 - 0AA0.

Izindlela Zokufaka Izintambo Zezinzwa ze-NPN ne-PNP

Ukuqonda Izinhlobo Zetheminali Yokokufaka zama-PLC : Izincazelo zomthombo - uhlobo nosinki - uhlobo lwamatheminali okokufaka we-Siemens PLC zisekelwe ekuqondeni kokugeleza kwamanje endaweni ye-I - point yetheminali ye-PLC. (Qaphela: Lokhu kuphambene nencazelo esetshenziswa yi-Mitsubishi PLCs, esekelwe ekuqondeni kokugeleza kwamanje kutheminali ye-COM.)

Umthombo - uhlobo : Uma okwamanje kugeleza kuphuma endaweni ye-I, kuthathwa njengomthombo wamanje.

I-Sink - type : Uma okwamanje kugeleza ku-I - point, kubhekwa njengendawo okuyiwa kuyo yamanje.

Ixhuma Izinzwa ze-NPN ku-PLC (Umthombo - uhlobo Lokufaka kwe-Siemens PLC) : Ukugeleza kwamanje: 24V + → itheminali ye-COM → I0.0 (yamanje igeleza iphuma endaweni ye-I) → itheminali yenzwa yokuphuma → itheminali yenzwa engu-0V → 0V.

Ixhuma Izinzwa ze-PNP ku-PLC (Sinki - uhlobo Lokufaka lwe-Siemens PLC) : Ukugeleza kwamanje: 24V + → inzwa engu-24V → itheminali yenzwa yokuphuma → I0.0 (idlulela ku-I - point) → COM → 0V.

Ukuhlukaniswa kwezinzwa

I-NPN (Umthombo - uhlobo) : Uma icushiwe, ikhipha isignali yezinga eliphansi.

I-NPN - CHA (Ngokujwayelekile Ivuliwe) : Akukho okukhiphayo uma kungacushiwe; ikhipha isignali yezinga eliphansi uma icushiwe.

I-NPN - NC (Ngokujwayelekile Ivalwe) : Ikhipha isignali yezinga eliphansi uma ingacushiwe; akukho okukhiphayo uma kucushiwe.

I-NPN - NC + NO (Ihlanganiswe Ngokujwayelekile Ivulwe Futhi Ivalwe Ngokujwayelekile) : Amatheminali amabili okukhiphayo (eyodwa evulekile, eyodwa ivaliwe).

I-PNP (Sink - type) : Uma icushiwe, ikhipha isignali yezinga eliphezulu.

I-PNP - CHA (Ngokujwayelekile Ivuliwe) : Akukho okukhiphayo uma kungacushiwe; ikhipha isignali yezinga eliphezulu uma icushiwe.

I-PNP - NC (Okuvamilely Kuvaliwe) : Ikhipha isignali yezinga eliphezulu uma ingacushiwe; akukho okukhiphayo uma kucushiwe.

I-PNP - NC + NO (Ihlanganiswe Ngokujwayelekile Ivulwe Futhi Ivalwe Ngokujwayelekile) : Amatheminali amabili okukhiphayo (eyodwa evulekile, eyodwa ivaliwe).

Umehluko Oyisisekelo Phakathi Kwezinzwa ze-PNP ne-NPN

Izinzwa ze-PNP ne-NPN zombili zingama-switch - uhlobo lwezinzwa ezisebenzisa ukugcwala kanye nokunqamuka kwama-transistors ukukhipha izifunda ezimbili. Nokho, amasignali okukhiphayo aphambene: I-NPN ikhipha isignali yezinga eliphansi (0V), kuyilapho i-PNP ikhipha isignali yezinga eliphezulu (24V).

Izinzwa ze-PNP ne-NPN zihlukaniswe ngezinhlobo eziyisithupha:

I-NPN - CHA (Imvamisa ivuliwe)

I-NPN - NC (Ngokujwayelekile Ivalwe)

I-NPN - NC + NO (Ihlanganiswe Ngokujwayelekile Ivulwe Futhi Ivamise Ukuvala)

I-PNP - CHA (Imvamisa ivuliwe)

I-PNP - NC (Ngokujwayelekile Ivalwe)

I-PNP - NC + NO (Ihlanganiswe Ngokujwayelekile Ivulwe Futhi Ivalwe Ngokujwayelekile)

Izinzwa ze-PNP ne-NPN ngokuvamile zinemikhondo emithathu: ulayini wokuphakela amandla (VCC), ulayini we-0V, kanye nolayini wokuphuma kwesignali.

Uhlobo lwe-PNP : Uma ucushiwe, ulayini wokuphuma uxhumeka kulayini wokuphakela amandla (VCC), ukhiphe isignali yezinga eliphezulu.

I-PNP - CHA : Umugqa wokuphuma uvuliwe (unqanyuliwe ku-VCC) uma ungacushiwe. Uma icushwa, ikhipha amandla kagesi afanayo ne-VCC (isignali yezinga eliphezulu).

I-PNP - NC : Ulayini wokuphuma uxhumeke kulayini wokuphakela amandla we-VCC (ukhipha isignali yezinga eliphezulu) uma ungacushiwe. Uma icushiwe, umugqa ophumayo uyavuleka (unqanyuliwe ku-VCC).

I-PNP - NC + CHA : Ine-terminal eyengeziwe, engasetshenziswa njengoba kudingeka.

Uhlobo lwe-NPN : Uma ucushiwe, ulayini ongaphandle uxhuma kulayini we-0V, ukhiphe isignali yezinga eliphansi.

I-NPN - CHA : Umugqa wokuphuma uvuliwe (unqanyuliwe ku-0V) uma ungacushiwe. Uma icushwa, ikhipha i-voltage efanayo nolayini we-0V (isignali yezinga eliphansi).

I-NPN - NC : Ulayini wokuphuma uxhumeke kumugqa we-0V (ukhipha isignali yezinga eliphansi) uma ungacushiwe. Uma icushiwe, umugqa wokuphuma uyavuleka (unqanyuliwe ku-0V).

I-NPN - NC + NO : Ifana ne-NPN - NC + NO, inetheminali eyengeziwe, engasetshenziswa njengoba kudingeka.

Izinzwa ze-NPN zikhipha isignali yezinga eliphansi (0V), kuyilapho izinzwa ze-PNP zikhipha isignali yezinga eliphezulu (24V).

Isibonelo, uma amandla enzwa engu-24V, inzwa ye-NPN izokhipha i-0V, kuyilapho inzwa ye-PNP izokhipha i-24V.

Uma uxhumeka kokokufaka kwe-PLC, uma kungukuphumayo kwe-NPN, itheminali ye-PLC ye-COM kufanele ixhunywe ku-24V. Ngokuphambene, uma kungumkhiqizo we-PNP, itheminali yokufaka ye-PLC kufanele ixhunywe ku-0V.

Okubalulekile wukuqonda ukuthi i-PNP ne-NPN imele ini. U-P umele uphozithivu, kanti u-N umele negative. I-PNP ikhombisa isignali yezinga eliphezulu ngaphansi kwezimo ezijwayelekile, futhi isignali iba negethivu lapho icushwa. I-NPN ibonisa isignali yezinga eliphansi ngaphansi kwezimo ezivamile, futhi isignali iba yizinga eliphezulu uma icushiwe. Umphumela wokushintshwa kwe-proximity switch kanye namaswishi e-photoelectric kuyafana, kodwa amasekhethi abo okuthola ayahluka. Ngokuqondene nezintambo ze-PLC, izinhlobo ze-NPN zivame ukusetshenziswa kaningi. Iningi lama-PLC aseJapane e-China awuhlobo lomhlaba wonke - uhlobo noma lwamazwe ngamazwe, olungasebenzisa ngokuqondile izinzwa ze-NPN. Itheminali evumayo ye-proximity switch kanye ne-photoelectric switch power supply ixhunywe kugesi omuhle, i-negative terminal ixhunywe kutheminali evamile, futhi okukhiphayo kuxhunywe kutheminali yokufaka ye-PLC.

Kafushane, ekushintsheni - isekethe yokufaka yobuningi yama-PLC, ama-Japanese Mitsubishi PLCs abonakala esebenza kakhulu futhi ethembekile kunamanye ama-PLC awaziwa kakhulu njenge-Siemens. Isizathu esikhulu ukuthi ama-PLC aseJapan, okuhlanganisa ne-Mitsubishi, athuthukise umklamo awufundile