IEC 61131-3 STANDARTI DASTURLASH ASOSLARI
Kalit so‘zlar:
PLC, IEC 61131-3, Ladder Diagram (LD), Function Block Diagram (FBD), Structured Text (ST), Instruction List (IL) va Sequential Function Chart (SFC).Abstrak
Sanoat avtomatlashtirish tizimlarida PLC (Programmable Logic Controller) texnologiyalari asosiy rol o‘ynaydi. Bu tizimlarning dasturlash jarayoni yuqori ishonchlilik, modullilik va standartlashtirishni talab qiladi. Aynan shunday talablarni hisobga olgan holda ishlab chiqilgan IEC 61131-3 — xalqaro standart bo‘lib, u PLC tizimlarini dasturlashning yagona va tushunarli asosini yaratadi. Ushbu maqolada IEC 61131 standarti, ayniqsa uning uchinchi bo‘limi (IEC 61131-3) asosida taqdim etilgan dasturlash tillari — Ladder Diagram (LD), Function Block Diagram (FBD), Structured Text (ST), Instruction List (IL) va Sequential Function Chart (SFC) lar o‘rganiladi. Maqolada har bir tilning qo‘llanilishi, afzalliklari va real sanoat tizimlaridagi roli haqida misollar bilan yoritilgan. Shuningdek, ma’lumot turlari, funksional bloklar va testlash vositalari kabi texnik jihatlar ham keng qamrab olingan.
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