Итоговые PLC-проекты: насосная, бак и машина
Цель: Изучить тему «Итоговые PLC-проекты: насосная, бак и машина» и закрепить её практическими заданиями и самопроверкой.
2 акад. часа чтение и разбор теории, решение задач, работа со схемой или виртуальным стендом и проверка понимания.
Project A: Duplex pump station
Two pumps maintain tank/outlet pressure. Requirements: auto alternation, lead/lag, run feedback, overload, low-level dry-run protection, high pressure stop, runtime hours, manual mode and alarms. Student creates I/O list, state logic, motor FB instances and HMI tags.
Project B: Tank filling/heating
Sequence: Fill to level, heat to temperature, hold for time, drain. Add HH/LL protection, valve timeouts, heater permissive only above minimum level, analog scaling and temperature PI simulation.
Project C: Drilling machine concept
Based on the style of practical examples in the uploaded PLC textbook: define sensors, outputs, sequence states, I/O symbol table, program and diagnostics. The goal is not exact machine design but systematic control synthesis.
Что нужно запомнить
- Requirements: auto alternation, lead/lag, run feedback, overload, low-level dry-run protection, high pressure stop, runtime hours, manual mode and alarms.
- Student creates I/O list, state logic, motor FB instances and HMI tags.
- Sequence: Fill to level, heat to temperature, hold for time, drain.
- Add HH/LL protection, valve timeouts, heater permissive only above minimum level, analog scaling and temperature PI simulation.
- Based on the style of practical examples in the uploaded PLC textbook: define sensors, outputs, sequence states, I/O symbol table, program and diagnostics.