🌬️ Project 1: HVAC Control System with PID, Damper & Alarm Handling

This project simulates a real-world HVAC control system using Rockwell Studio 5000 and FactoryTalk View SE HMI. It features Auto/Manual mode handling, PID-based damper regulation, reusable AOI/UDT structures, and a full alarm/notification system.

🧠 System Overview

  • Auto & Manual operating modes with interlocks
  • PID loop for temperature control (damper modulation 0–100%)
  • Supply and Return fans controlled via AOI_FanControl
  • Deviation-based damper fault detection (>10% for 5s)
  • Alarm latching with buzzer & reset
  • Modular routines: IO_MAP, MODE_HANDLING, TEMP_PID, DAMPER_CONTROL, FAN_CONTROL, FAULT_MONITOR, ALARM_HANDLER
  • HMI navigation: Home, Fan, Damper, PID, Alarm

📄 Project Reports

1. Final Report

Full design report covering objectives, hardware/software setup, logic flow, tag lists, UDTs, AOIs, and test procedure.

📥 Download Final Report PDF

2. Ladder Logic with Rung Comments

Documented ladder routines with rung-by-rung comments for IO, Mode, PID, Fan, Damper, Faults, and Alarms.

📥 Download Logic PDF

🖼️ HMI Screens (FactoryTalk View SE)

Home / Navigation

Home Screen

Fan Control Screen

Fan Screen

Damper Control Screen

Damper Screen

Alarm Banner & Acknowledgment

Alarm Screen

PID Tuning & Trending

PID Screen

These screens demonstrate:

  • Auto/Manual selection and mode lamps
  • Fan status, start/stop, and feedback
  • Damper command vs feedback + deviation alarms
  • PID tuning interface with PV/SP/output trending
  • Alarm banner with Ack/Reset

🧪 Testing & Results

  • Fans start automatically in Auto mode
  • Manual mode allows direct fan & damper control via HMI
  • PID loop regulates damper position to maintain setpoint
  • Damper fault alarm triggers correctly (>10% deviation for 5s)
  • E-Stop immediately latches system fault
  • Alarm buzzer & reset tested successfully

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