Use of IEC1131 programming in virtual laboratory

Virtual laboratories are being used in automation design for integrator systems. Since the use of IEC 61131-3 languages is standardised in the industrial automation programming, the authors consider introducing these languages in the develop of virtual laboratories. The Virtual Laboratory of Automation at the University of Oriente (Cuba) works towards this goal. The SDAI teaching system include model analysis and design in Petri nets, programming and simulation control system in ladder diagrams and sequential functions chart languages. The functional requirements in real installation are verified. The integrate work of all parts is achieved for the use of IEC 1131 graphical languages facilities.