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Elektrotechnik und Informationstechnik
Bachelor

SPS-Systeme

The basic idea of the PLC System Lab is to provide a physical environment where students will get practical experience in programming PLC’s during hands on equipments training sessions. This requires several work places, where students will work in small groups of 2 students each in a team.



After having passed a theoretical introduction course the practical session starts. During the practical phase the following aspect of PLC- programming will be covered:
• First steps (wiring of I/O’s, establishing serial link between PC and PLC, PLC hw configuration,… )
• Basic operations (AND, OR, NOT, XOR, INHIBIT, SR-FF, Toggle FF, Rising Edge, Timer, Counter,…)
• Simple simulated processes (Floor light, Press, Filling Tank, Stamping process,…)
• Sequential simulated processes (Cylinder, Parcel sorting, Batch process marking parcels,…)
• Implementation of a Finite State Machine (Alarm handling sequence, Traffic Light)
• Reversing Drive Unit
• Treatment of analogue signals (Input, Output, Scaling, Comparison with hysteresis,…)
Equipment
10 work places, each of them equipped with:
• Modern PC (Windows XP), flat screen VDU, keyboard, mouse
• PLC- software development tool (easy Soft CoDeSys and EASY SOFT Professional)
• Modular PLC 1: XC100 with binary and analogue I/O’s
• Compact PLC 2: EASY 822
• Manual Operator Panel with illuminated pushbuttons and switches
• Process simulation software tool (pneumatic systems) running on PC
• HW- process model (Reversing drive unit, traffic light system, analogue mixed signal generator)
• Oscilloscope with PC remote control
• Function Generator

Projects
• PLC controls mechanical clock based on DCF 77 time signal
• PLC controls asynchronous drive unit
• Demonstrator of an Asynchronous Finite State Machine with pneumatic cylinders and PLC
• Balancing a pneumatic controlled horizontal platform by using a PLC
• Position control of pneumatic cylinders by using PLC and high speed on/off valves