Elevator system simulation model realized in programmable logic controller

Rad opisuje simulacijski model sustava dizala koji se sastoji od tri dizala. Svakim dizalom se nezavisno upravlja dok se zahtjevi s kata dodjeljuju jednom od dizala uzevši u obzir najkraći odaziv. Sve funkcije, korištene u upravljanju dizalima, pisane su u STL programskom jeziku i organizirane u funkcijske blokove koristeći Graph programski jezik. Konačno, cjelokupan sustav je testiran i verificiran u WinCC okruženju.This paper describes a simulation model of elevator system consisted of three elevators. Each elevator is independently controlled while floor request are being assigned to one of the elevators regarding the shortest time response. All functions, used in controlling elevators, are written in an STL programming language and organised in function blocks using Graph language. Finally, the whole system is tested and verified in the WinCC RT environment