01.SYSTEM OVERVIEW The SB-PLC-2020 is a comprehensive programmable logic controller (PLC) training system engineered to bridge the gap between classical microcomputer theory and real-world industrial automation practice. Built around a genuine Siemens S-200 series host CPU, the unit gives students hands-on exposure to the exact control logic used on modern factory floors, rather than a simplified simulation of it. Housed in a rugged, portable aluminum carrying case, the trainer is purpose-built for laboratory and classroom environments where durability, safety, and mobility matter. Its self-contained design integrates a full I/O interface panel, power supply, and a graphical simulation board within a single unit, allowing instructors to move seamlessly between lecture and lab without complex setup or external wiring. Through 24 pre-built demonstration modules, the system walks learners through the complete automation workflow: sequential control, logic judgment, timing operations, an
02.CORE HARDWARE SPECIFICATIONS
Host Controller: Siemens S-200 series host CPU
Input / Output Points: 14 dedicated input points and 10 output points
Operating Voltage: DC 24V switch-regulated power supply for internal circuits and input devices
Interface Panel: Discrete sections for LED indicators, slider switches, push switches, relay control modules, and digital/analog I/O connections
Simulation Board: Comprehensive graphical simulation board with integrated routing for various electromechanical scenarios
I/O Protection: Optoelectronic coupling circuits to reduce electromagnetic interference and ensure high reliability
Execution Architecture: Continuous, cyclic scanning (input sampling, program execution, and output refresh stages)
Mechanical Dimensions: 460 (H) x 160 (L) x 350 (D) mm
Enclosure: Durable, portable aluminum carrying case
Connectors: 2mm Banana socket and jack.
03.SUPPORTED PROGRAMMING LANGUAGES
The SB-PLC-2020 supports standard industrial programming methodologies, allowing users to develop applications without requiring specialized computer science backgrounds.
• Ladder Diagram (LAD): A graphical language that utilizes dynamic closing and breaking contacts, coils, and series/parallel connections to represent logic.
• Instruction Statement Table (STL): A mnemonic-based language composed of step sequences, instruction languages, and action device numbers for precise control.
04.INTEGRATED DEMONSTRATION EXPERIMENTS
The trainer is equipped to simulate 24 distinct industrial and commercial control scenarios, providing a comprehensive curriculum for automation programming:
01. Doorbell operation simulation control experiment 13.Bottle factory simulation control integrating conveyor belts and filling solenoids
02.Lamp switch operation simulation control utilizing 16 independent LED indicators 14.Beverage machine simulation control with coin deposit logic and product dispensing
03.Silo control simulation involving position switches and solenoid valve outputs 15.Reaction vessel simulation control utilizing liquid level sensors, mixers, and temperature sensors
04.7-segment display control experiment using BCD code input 16.Microwave oven simulation control featuring variable power modes and timing logic
05.Starter simulation control for basic motor run and stop operations 17.Garage simulation control for sequential parking space allocation
06.Motor sequential simulation control for multi-motor timing logic 18.Combination lock simulation control requiring specific numerical sequencing
07.Star/triangle (Delta) start simulation control experiment for electric motors 19.Elevator simulation control for a three-layer automatic system with internal and external call buttons
08.Electric resistance welding simulation control featuring pressure and electrode timing 20.Process control trainer and washing machine simulation with inlet, drainage, and cycle logic
09.Tank level simulation control integrating water pumps, inlet valves, and limit switches 21.Analog input and output control experiment utilizing 0-10V signal monitoring
10.Traffic light simulation control for intersection management 22. Automatic Gate/Barrier Control Simulation
11.Conveyor Belt Sorting Control 23. Fire/Smoke Alarm Response Simulation
12. Water Tank Dual-Pump Rotation Control 24. Automated Packaging Line Counter
05.PACKAGE CONTENTS / INCLUDED ACCESSORIES
Every SB-PLC-2020_unit ships complete and ready for classroom use, including the following items:
Operation & Exercise Manual: Detailed instruction booklet covering wiring diagrams, ladder-logic programming steps, and all 24 guided experiments
Connecting Probes / Test Leads: Set of banana-plug connecting leads for wiring inputs, outputs, and simulation board terminals
Power Cord: AC power cable for connecting the trainer to mains supply
Programming Cable: PLC-to-PC communication cable for uploading and downloading ladder logic programs
Aluminum Carrying Case: Rugged, portable enclosure housing the complete trainer and accessories
Spare Fuses: Replacement fuses for the internal power supply protection circuit.
