Solar Cell Simulator vs PLC Ladder Logic Simulator

Solar Cell Simulator. The purpose of this app is to illustrate how the power generated by a solar cell depends on the alignment of the cell to the sun. This app is a simulator of how an iPhone-sized solar cell would work. Point the screen at the sun, and the solar cell graphic will change from blue to red. The app will also retrieve the weather for your location, and estimate the impact of clouds and temperature on the performance of a solar cell with the same orientation. You can align your iPhone with the roofline of your house and estimate how effective solar cells would be at your location. Power generation depends on four factors: elevation of the sun, angle between the solar cell and the sun, cloud cover, and temperature. Each of these factors can be set automatically based on actual conditions or set manually.

Learn PLC ladder logic programming from scratch with PLC Ladder Learn — an animated, hands-on simulator built for engineering students, technicians, and anyone new to industrial automation. No expensive software, no real hardware needed. Open the app and start building and simulating real PLC ladder diagrams right on your iPhone or iPad. ANIMATED LESSONS Every concept is taught with moving visuals. Watch timers count up, contacts open and close, current flow through the rung, and circuits operate step by step. You learn ladder logic with your eyes — not dry text. LIVE LADDER SIMULATOR (SANDBOX) Build your own ladder diagrams and run them in real time: • Place contacts (NO/NC), coils, SET/RESET, timers and counters • Toggle inputs and watch outputs respond instantly • Series (AND), parallel (OR) and combined logic • Live signal graph (oscilloscope) to trace bits and values • Undo/redo, address suggestions and custom labels WHAT YOU'LL LEARN • Ladder logic & ladder diagram basics • Normally Open / Normally Closed contacts and output coils • Addressing (I, Q, M, DB) and the PLC scan cycle • Timers — TON, TOF, TP • Counters — CTU, CTD • Memory bits, latching, SET/RESET • Positive / negative edge detection • Comparison, MOVE and math instructions • Analog I/O — 4-20 mA, scaling, PID basics • FC / FB blocks and program structure • Industrial communication — RS-485, PROFIBUS, PROFINET, Modbus REAL-WORLD SCENARIOS Practice with examples you'll meet on the job: start/stop motor control, conveyor logic, traffic lights, pump control, elevator sequencing, sequential start and alarm handling. 60 REAL-WORLD PROBLEMS Solve graded automation problems from easy to hard, each with its own animated scene: motor control, conveyors, alarms, tank filling, greenhouse climate, wind turbine and more. Your ladder solution is checked automatically, and your circuit is saved as you work. QUIZZES & PRACTICE Reinforce every lesson with quizzes and guided exercises that check your ladder solution automatically. Earn XP and track your progress as you learn. WHO IS THIS FOR? • Engineering & vocational students (electrical, mechatronics, automation) • Technicians and maintenance staff • Career changers moving into PLC programming • Anyone learning Siemens S7 / TIA Portal concepts or preparing for an automation job WHY PLC LADDER LEARN • Learn by doing — build and simulate, don't just read • Beginner-friendly, step-by-step path • Works fully offline, anytime • Available in 6 languages: English, Spanish, Portuguese, French, Indonesian and Turkish PLC Ladder Learn is free to start. Unlock Premium once (lifetime — no subscription) for advanced lessons, unlimited simulator graph channels and an ad-free experience. Download now and go from zero to confident PLC ladder logic programming. Note: This is an independent educational tool, not affiliated with or endorsed by Siemens. "S7", "PROFIBUS" and "PROFINET" are referenced for educational purposes only.