Dɛn ne PLC?
PLC yɛ Programmable Logic Controller a wɔatwa no tiaa.
Programmable logic controller yɛ dijitaal adwumayɛ ɛlɛtrɔnik nhyehyɛe a wɔayɛ no titiriw sɛ wɔde bedi dwuma wɔ mfiridwuma tebea mu.Ɛfa programmable memory bi, a ɛkora akwankyerɛ a wɔde yɛ logic operation, sequence control, bere, counting ne arithmetic operation, na ɛhwɛ ahorow ahorow so mfiri a wɔde yɛ nneɛma anaasɛ adeyɛ nhyehyɛe denam dijitaal anaa analog input ne output so.
Nneɛma a ɛwɔ PLC mu
1. 1. Nnipa a wɔte saa.Ahotoso a ɛkorɔn
Esiane sɛ PLC dodow no ara fa microcomputer a ɛwɔ chip biako nti, ɛwɔ nkabom a ɛkorɔn, a ɛne ahobammɔ amansin a ɛne no hyia ne dwumadi ahorow a ɛma wohu wɔn ho, na ɛma nhyehyɛe no mu ahotoso tu mpɔn.
2. 2. . Dwumadi a ɛnyɛ den
PLC nhyehyɛe no dodow no ara gye relay control ladder diagram ne command statement tom, na ne dodow sua koraa sen microcomputer de no. Wɔ PLC a ɛwɔ mfinimfini ne nea ɛkorɔn akyi no, PLC nketewa bɛyɛ 16 pɛ na ɛwɔ hɔ wɔ ɔkwan a ɛkɔ akyiri so. Esiane sɛ antweri mfonini no mu da hɔ na ɛnyɛ den nti, ɛnyɛ den sɛ wobɛyɛ no yiye na wode adi dwuma. Wobetumi ayɛ ho nhyehyɛe a wonni kɔmputa ho nimdefo.
3. 3. .Nsiesiei a ɛyɛ mmerɛw
Esiane sɛ PLC no gye ɔdansi nhyehyɛe bi tom nti, wɔn a wɔde di dwuma no betumi asesa nhyehyɛe a wɔde di dwuma no dwumadi ne ne kɛse wɔ ɔkwan a ɛyɛ mmerɛw so denam nea wɔde bɛka abom ara kwa so. Enti, wobetumi de adi dwuma wɔ nhyehyɛe biara a wɔde di dwuma mu.
4. 4. .Input / output adwuma module ahorow a edi mũ
Mfasoɔ kɛseɛ baako a ɛwɔ PLC so ne sɛ, wɔ afuom nsɛnkyerɛnneɛ ahodoɔ ho (te sɛ DC anaa AC, switching value, digital anaa analog value, voltage anaa current, ne nea ɛkeka ho), templates a ɛne no hyia wɔ hɔ, a wɔbɛtumi ne industrial field devices (te sɛ buttons, switches, sensing current transmitters, motor starters anaa control valves, ne nea ɛkeka ho) abɔ mu tẽẽ na wɔde abɔ CPU motherboard denam bus so.
5. 5. .Ɛnyɛ den sɛ wode besisi hɔ
Sɛ wɔde toto kɔmputa nhyehyɛe no ho a, PLC a wɔde besisi hɔ no nhwehwɛ sɛ wɔyɛ kɔmputa dan titiriw anaasɛ wɔyɛ nhyehyɛe a emu yɛ den a wɔde bɛbɔ ho ban. Sɛ wɔde di dwuma a, ebetumi ayɛ adwuma sɛnea ɛsɛ denam detection device no a wɔde bɛka I / O interface terminal a ɛwɔ actuator ne PLC no ho yiye nkutoo so.
6. 6. .Ahoɔhare a wɔde tu mmirika ntɛmntɛm
Esiane sɛ wɔde program control na ɛyɛ PLC control no nti, ne ahotoso ne mmirikatu ahoɔhare no yɛ nea relay logic control nsɛ. Wɔ nnansa yi mfe mu no, microprocessors a wɔde di dwuma, titiriw a ɛwɔ chip microcomputer dodow a ɛwɔ chip biako mu no ama PLC tumi akɔ anim kɛse, na ama nsonsonoe a ɛda PLC ne microcomputer control system ntam no ayɛ ketewaa ne ketewa, titiriw PLC a ɛkorɔn.
Sɛnea wubetumi ahu wɔ video no mu no, mfiri, mframa ne anyinam ahoɔden a wɔaka abom no, adwumayɛ nneyɛe nyinaa yɛ nea PLC na ɛhwɛ so. Touch screen ma oprehyɛn no yɛ mmerɛw na ɛnyɛ den. Sɛ GTMSMART Machine no, yɛkɔ so de mfiridwuma a aba so foforo yɛ yɛn nneɛma na yɛde adwumayɛ a ɛkorɔn ma plastic afiri a wɔde yɛ ɔhyew ɛno bɛma yɛn adetɔfo ani agye.
Bere a wɔde bɛkyerɛw: Apr-20-2022