PLC thev naus ceeb toom: Kev faib tshuaj, kev ntsuas kev kawm & cov qauv yav tom ntej

PLC thev naus ceeb toom: Kev faib tshuaj, kev ntsuas kev kawm & cov qauv yav tom ntej

Nkag siab Plc Kev Sib Tw
Cov tswj hwm logicmable (plcs) tau raug faib raws li Lub cev qauv thiab I / O muaj peev xwm:

1. Los ntawm cov qauv:

• Kev sib xyaw / Unitary Plcs: Khoom Siv Hluav Taws Xob: CPU, thiab I / O Interfaces nyob rau hauv ib leeg Vas. Qhov zoo tshaj plaws rau cov ntawv thov cog lus.

• Modular / khib-mounted plcs: comprame cais, hloov pauv (hloov pauv tau (CPU, I / O) Mounted ntawm khib. Muab cov tshuab siab rau cov tshuab los ntawm kev xaiv cov qauv xaiv ua qauv.

2. Los ntawm I / O muaj peev xwm:

• Me Plcs: kov ≤ 256 I / O Cov Ntsiab Lus. Piv txwv li: Siemens S7-200 Smart.

• Nruab Nrab PLCS: feem ntau yog modular, tuav 256 - 1024 i / o cov ntsiab lus. Piv txwv li: Siemens S7-300.

• Loj plcs: Tswj> 1024 I / O Cov Ntsiab Lus. Piv txwv li: Siemens S7-400.

1024 I / O Cov Ntsiab Lus. Piv txwv li: Siemens S7-400.
Key Plc Performance indicators

1. Thaum cov neeg muag khoom muaj cov cim tshwj xeeb, cov kev ua haujlwm tseem ceeb hauv tsev kawm yog Universal:

2. Kuv / O point muaj peev xwm: tag nrho cov lus tawm thiab cov zis tawm cov chaw txhais cov PLC tswj. Nws yog ib qho tseem ceeb xaiv.

3. Ntsuam xyuas kev ntsuas nrawm: ntsuas kev ua tiav, qhia raws sijhawm (MS) yuav tsum tau ua 1k cov kauj ruam (1 kauj ruam = 1 lub cim xeeb chaw nyob).

4. Nco lub peev xwm: qhia tau cov neeg siv txoj kev pab cuam, ntsuas hauv K cov lus (KB), K Bits (KB), lossis k Bits (KB) (1k = 1024). Qee cov PLCS qhia cov peev xwm muaj peev xwm ua kauj ruam (piv txwv li, mitsubishi fx2n-4smr: 8000 kauj ruam). Muaj peev xwm feem ntau yog teeb tsa lossis nthuav dav.

5. Cov kev qhia ua: Qhov chaw sov thiab nrawm ntawm cov lus qhia muaj kev txiav txim siab cov kev paub daws teeb meem thiab lub zog ua haujlwm.

6. Sab Hauv Sau Npe / Relays: Qhov ntau ntawm cov ntawv sau npe rau khaws cov khoom sib txawv, cov ntaub ntawv, thiab cov txiaj ntsig nruab nrab thiab nruab nrab ntawm cov kev cuam tshuam kev pab cuam.

Muaj peev xwm nthuav dav: lub peev xwm los sib sau ua ke cov qauv tshwj xeeb (A / D, D / A, kev sib txuas lus nrawm, kev sib txuas lus zoo txhim kho PLC ua haujlwm.
Plc vs. Relay-Raws Li Tswj Cov Nruab Nrab

Ua ntej plcs, relay-raws cov qhob system yeej cov laj thawj thiab ua ntu zus. Thaum yooj yim thiab tus nqi qis, plcs muab cov peev xwm zoo dua, thiab kev kuaj mob, coj mus rau lawv cov kev xa mus rau cov tshuab ua tiav.
Lub neej yav tom ntej ntawm Plc Technology

1. Kev tsim kho plc yog sai tshaj plaws nce qib hauv ntau cov lus qhia:

2. Txhim Kho Kev Ua Tau Zoo: Kev ua kom nrawm dua, loj dua, thiab txhim kho lub peev xwm.

3. Kev sib xyaw Network: Kev sib txuas lus sib txuas lus: kev sib txuas lus sib txuas lus thiab kev sib txuas rau kev lag luam 4.0 / iot kev sib txuas.

4. Kev cog lus cog lus & siv tau: Cov hneev taw me me, tus nqi qis dua, thiab yooj yim siv rau kev saws me nyuam.

5. Cov software tshaj lij: muaj zog ntau, kev paub tab thiab kev teeb tsa cov cuab yeej.

6. Cov Qauv Tshwj Xeeb: Kev tsim kho txuas ntxiv ntawm cov qauv rau NICHE daim ntawv thov.

Virtualization & miniaturization: tshwm sim PLC emulation thiab ultra-compact cov qauv kev ua qauv.
Hais Txog Industrial Automation: