Start/Stop a Lamp
FreeSimplest circuit: start button, stop button, lamp with latch.
devicebeginner
DOL Motor Starter
FreeDirect-on-line motor starter with overload and e-stop.
machinebeginner
Forward/Reverse Motor
FreeForward/reverse motor control with mutual interlock.
machinebeginner
Star-Delta Starter
FreeStar start for 5s, then switchover to delta.
machineintermediate
Traffic Light Sequencer
FreeRed/Yellow/Green sequence with timers.
devicebeginner
Tank Filling System
FreePump and drain valve with high/low level sensors.
machinebeginner
Automatic Garage Door
FreeOpen/close with end-of-travel and safety beam.
machinebeginner
Conveyor Product Counter
FreeProximity counts parts and stops conveyor at target.
machinebeginner
Pressure-Controlled Pump
FreePump runs on low pressure, stops on high.
machineintermediate
Oven Temperature Control
FreeON/OFF heater with hysteresis band and over-temp alarm.
machineintermediate
Duty/Standby Compressors
FreeTwo compressors alternating by runtime hours.
machineintermediate
3-Floor Elevator
FreeSimple elevator with inside and call-floor requests.
machineintermediate
PID Water Level Control
FreeAnalog valve maintains tank level at setpoint.
machineintermediate
Batch Mixer
FreeTwo-ingredient fill, mix, drain sequence.
machineintermediate
CNC Feed Control
FreeStepper with limits and home referencing.
machineintermediate
Bottling Line
ProFill + cap + label + reject station.
lineintermediate
Upgrade to Pro Color Sorting Line
ProPneumatic arm sorts by carton color.
lineintermediate
Upgrade to Pro Triple Pump Station
ProThree alternating pumps with pressure PID.
lineexpert
Upgrade to Pro Mini ASRS Storage
ProShuttle moves totes to/from storage cells.
lineexpert
Upgrade to Pro Cartoning Machine
ProErect carton, load product, close, seal.
lineexpert
Upgrade to Pro Lab 1: Ladder Basics
AcademyPLC Foundations course exercise — I/O and memory bits.
machinebeginnerplc-foundations
Lab 2: Timers & Counters
AcademyTON/TOF/TP and up/down counters.
machineintermediateplc-foundations
SCADA Mimic Screen
AcademySCADA mimic design exercise for a production line.
lineintermediatescada-hmi-design
PLC ↔ MQTT Bridge
AcademyPublish PLC data to MQTT with an OPC UA bridge.
lineexpertindustrial-iot
Motor Predictive Maintenance
AcademyVibration/current analysis raising alerts.
lineexpertindustrial-iot
Full Water Treatment Plant
BusinessCoagulation, sedimentation, filtration, disinfection, distribution.
plantexpert
Automated Bakery
BusinessMixing, proofing, tunnel oven, cooling, packaging.
plantexpert
Complete Bottling Plant
BusinessRinser, filler, capper, labeler, case packer, palletizer.
plantexpert
Electrical Substation
BusinessProtection, load shed, ATS, grid monitoring.
plantexpert
Cement Production Line
BusinessQuarry, raw mill, kiln, cement mill, packing.
plantexpert