Kodi mungasiyanitse bwanji NPN ndi PNP? Momwe mungalumikizire ku PLC?

Kodi mungasiyanitse bwanji NPN ndi PNP? Momwe mungalumikizire ku PLC?

Zida za NPN ndi PNP ndi Nokia PLC Connection ndi Selection

Zomverera zitha kugawidwa m'mitundu iwiri ikuluikulu kutengera mitundu yawo yotulutsa: NPN (yomwe imadziwikanso kuti gwero - masensa amtundu) ndi PNP (yomwe imadziwikanso kuti sink - type sensors). Mitundu yonse iwiri ya masensa ili ndi zotsogola zitatu, zomwe zimalumikizidwa ndi 24V, 0V, ndi Out (signal output). Ndiye, ndi mitundu yanji ya masensa omwe amathandizidwa ndi Nokia S7 series PLCs?

Mitundu ya Zomverera Zothandizidwa ndi Nokia PLCs ndi Modules

Zomverera Zothandizidwa ndi Siemens S7 - 200 : Malo olowetsamo a S7 - 200 mndandanda amathandizira onse gwero - mtundu ndi kuzama - masensa amtundu, kutanthauza kuti akhoza kulumikizidwa ndi masensa a NPN kapena PNP.

Zomverera Zothandizidwa ndi Nokia S7 - 200smart : Zofanana ndi S7 - 200, zolowera za S7 - 200smart zimathandizira masensa onse akumira - mtundu ndi gwero, kulola kulumikizana ndi masensa onse a NPN ndi PNP.

Zomverera Zothandizidwa ndi Nokia S7 - 1200 : Malo olowera a S7 - 1200 amathandizira masensa onse akumira - mtundu ndi gwero, zomwe zimathandizira kulumikizana ndi masensa a NPN kapena PNP.

Zomverera Zothandizidwa ndi Siemens S7 - 300 : S7 - 300 ili ndi ma modules osiyanasiyana a DI, ndipo mtundu wa sensa yomwe imathandizira iyenera kuyang'aniridwa muzitsulo za hardware malinga ndi magawo.

Ma modules ambiri a DI a S7 - 300 ndi ozama - mtundu (PNP masensa ayenera kusankhidwa) : Mu kasinthidwe ka hardware, palibe mwamsanga kwa gwero kapena mtundu wozama, zomwe zikutanthauza kuti ndizokhazikika kuti zimire - mtundu. Mwachitsanzo, gawo la 321 - 1BL00.

Source - mtundu wa DI modules wa S7 - 300 (NPN masensa ayenera kusankhidwa) : Mwachitsanzo, 6ES7 321 - 1BH50 - 0AA0 module.

Ma module a Universal DI omwe amathandizira mitundu yonse ya gwero ndi zozama (zonse za NPN ndi PNP zitha kugwiritsidwa ntchito) : Mwachitsanzo, gawo la 6ES7 321 - 1BP00 - 0AA0.

Zomverera Zothandizidwa ndi Siemens S7 - 1500 : Ma modules a DI omwe alipo panopa mu S7 - 1500 mndandanda amaphatikizapo ma modules a sink - omwe amathandizira PNP sensors ndi ma source - modules omwe amathandizira masensa a NPN.

Sink - mtundu wa DI modules (PNP sensors) : Mwachitsanzo, gawo la 6ES7 523 - 1BL00 - 0AA0.

Source - mtundu wa DI modules (NPN masensa) : Mwachitsanzo, 6ES7 131 - 6BF60 - 0AA0 module.

Wiring Njira za NPN ndi PNP Sensors

Kumvetsetsa Mitundu Yolowetsa Ma Terminal ya PLC : Matanthauzo a gwero - mtundu ndi sink - mtundu wa zotengera za Siemens PLC zimachokera kumayendedwe apano pa I - point ya PLC terminal. (Zindikirani: Izi ndi zosiyana ndi matanthauzo omwe amagwiritsidwa ntchito ndi Mitsubishi PLCs, omwe amachokera kumayendedwe apano pa COM terminal.)

Source - mtundu : Pamene panopa ikuyenda kuchokera ku I - point, imatengedwa kuti ndi gwero lamakono.

Sink - mtundu : Pamene panopa ikuyenda mu I - point, imatengedwa kuti ndi komwe kukupitako.

Kulumikiza NPN Sensor ku PLC (Source - Type Input for Siemens PLC) : Mayendedwe apano: 24V + → COM terminal → I0.0 (panopa ikuyenda kuchokera ku I - point) → sensor out terminal → sensor 0V terminal → 0V.

Kulumikiza PNP Sensor ku PLC (Sink - type Input for Siemens PLC) : Mayendedwe apano: 24V + → sensor 24V → sensor out terminal → I0.0 (panopa imayenda ku I - point) → COM → 0V.

Gulu la Zomverera

NPN (Source - Type) : Ikayatsidwa, imatulutsa chizindikiro chotsika.

NPN - NO (Nthawi zambiri Otsegula) : Palibe zotuluka zikasatsegulidwa; imatulutsa chizindikiro chotsika ikayatsidwa.

NPN - NC (Nthawi Yotsekedwa) : Imatulutsa chizindikiro chotsika pamene sichinayambe; palibe zotulutsa zikatsegulidwa.

NPN - NC + NO (Zophatikiza Nthawi Zonse Zotsegula ndi Zomwe Zimatsekedwa): Malo awiri otuluka (imodzi yotseguka, imodzi yotsekedwa).

PNP (Sink - Type) : Ikatsegulidwa, imatulutsa chizindikiro chapamwamba.

PNP - NO (Nthawi zambiri Otsegula) : Palibe zotuluka pamene sizinayambe; imatulutsa chizindikiro chapamwamba ikayatsidwa.

PNP - NC (Normally Yatsekedwa) : Imatulutsa chizindikiro chapamwamba pamene sichinatsegulidwe; palibe zotulutsa zikatsegulidwa.

PNP - NC + NO (Zophatikiza Nthawi Zonse Zotsegula ndi Zomwe Zimatsekedwa): Malo awiri otuluka (imodzi yotseguka, imodzi yotsekedwa).

Kusiyana Kwakukulu Pakati pa PNP ndi NPN Sensors

PNP ndi NPN masensa onse ndi masinthidwe - mtundu masensa kuti ntchito machulukitsidwe ndi cutoff wa transistors kutulutsa zigawo ziwiri. Komabe, zizindikiro zotuluka ndizosiyana: NPN imatulutsa chizindikiro chotsika (0V), pamene PNP imatulutsa chizindikiro chapamwamba (24V).

PNP ndi NPN masensa amagawidwa m'magulu asanu ndi limodzi:

NPN - NO (Nthawi zambiri Otsegula)

NPN - NC (Yotsekedwa Nthawi zambiri)

NPN - NC + NO (Zophatikiza Nthawi Zonse Zotsegula ndi Zomwe Zimatsekedwa)

PNP - NO (Nthawi zambiri Otsegula)

PNP - NC (Yotsekedwa Nthawi zambiri)

PNP - NC + NO (Zophatikiza Nthawi Zonse Zotsegula ndi Zomwe Zimatsekedwa)

PNP ndi masensa a NPN nthawi zambiri amakhala ndi zotsogola zitatu: chingwe chamagetsi (VCC), mzere wa 0V, ndi mzere wotuluka.

Mtundu wa PNP : Ikayambitsidwa, chingwe chakunja chimalumikizana ndi chingwe chamagetsi (VCC), ndikutulutsa chizindikiro chapamwamba.

PNP - NO : Mzere wakunja ndi wotseguka (wotsekedwa ku VCC) pamene sunayambitsidwe. Ikayambitsidwa, imatulutsa voteji yofanana ndi chingwe chamagetsi cha VCC (chizindikiro chapamwamba).

PNP - NC : Mzere wakunja umalumikizidwa ndi chingwe chamagetsi cha VCC (kutulutsa chizindikiro chapamwamba) ngati sichinayambitsidwe. Mukayambitsa, mzere wakunja umatsegulidwa (wochotsedwa ku VCC).

PNP - NC + NO : Ili ndi chowonjezera chowonjezera, chomwe chitha kugwiritsidwa ntchito ngati pakufunika.

Mtundu wa NPN : Ikayambitsidwa, mzere wakunja umalumikizana ndi mzere wa 0V, kutulutsa chizindikiro chotsika.

NPN - NO : Mzere wakunja ndi wotseguka (wotsekedwa ku 0V) pamene sunayambitsidwe. Ikayambika, imatulutsa mphamvu yofanana ndi mzere wa 0V (chizindikiro chotsika).

NPN - NC : Mzere wakunja umalumikizidwa ndi mzere wa 0V (kutulutsa chizindikiro chotsika) osayambitsa. Mukayambitsa, mzere wakunja umatsegulidwa (wotsekedwa ku 0V).

NPN - NC + NO : Zofanana ndi NPN - NC + NO, ili ndi chowonjezera chowonjezera, chomwe chitha kugwiritsidwa ntchito ngati pakufunika.

Masensa a NPN amatulutsa chizindikiro chotsika (0V), pomwe masensa a PNP amatulutsa chizindikiro chapamwamba (24V).

Mwachitsanzo, ngati mphamvu ya sensa ndi 24V, sensor ya NPN idzatulutsa 0V, pomwe sensor ya PNP idzatulutsa 24V.

Mukalumikizana ndi zolowetsa za PLC, ngati ndi zotulutsa za NPN, cholumikizira cha PLC cha COM chiyenera kulumikizidwa ndi 24V. Mosiyana ndi izi, ngati ndi zotuluka za PNP, cholumikizira cha PLC chiyenera kulumikizidwa ndi 0V.

Chofunikira ndikumvetsetsa zomwe PNP ndi NPN zikuyimira. P imayimira positive, ndipo N imayimira negative. PNP imawonetsa chizindikiro chapamwamba kwambiri pansi pazikhalidwe zabwinobwino, ndipo chizindikirocho chimakhala choyipa chikayambika. NPN imawonetsa chizindikiro chotsika pansi pazikhalidwe zabwinobwino, ndipo chizindikirocho chimakhala chokwera kwambiri chikayambika. Kutulutsa kwa ma switch amfupi ndi ma switch ma photoelectric ndi ofanana, koma mabwalo awo ozindikira amasiyana. Ponena za waya wa PLC, mitundu ya NPN imagwiritsidwa ntchito nthawi zambiri. Ma PLC ambiri aku Japan ku China ndi mtundu wapadziko lonse lapansi kapena wapadziko lonse lapansi, womwe utha kugwiritsa ntchito masensa a NPN mwachindunji. Malo abwino osinthira pafupi ndi magetsi osinthira ma photoelectric amalumikizidwa ndi magetsi abwino, terminal negative imalumikizidwa ndi terminal wamba, ndipo zotulutsa zimalumikizidwa ndi cholumikizira cha PLC.

Mwachidule, posinthira - kuchuluka kwa ma PLC, ma Mitsubishi PLC aku Japan akuwoneka kuti ndi othandiza komanso odalirika kuposa ma PLC odziwika bwino ngati Nokia. Chifukwa chachikulu ndichakuti ma PLC aku Japan, kuphatikiza Mitsubishi, akonza mapangidwe omwe adaphunzira