MODELING METHOD OF PLC CODE TEST APPARATUS, BASED ON THE STATE OF A DEVICE, A TRANSITION FUNCTION, AN ENTRY EVENT, AN EXIT EVENT, AND A DISENABLE FUNCTION

摘要

PURPOSE: A modeling method of plc code test apparatus is provided to manufacture a simulator for testing a PLC code by modeling a plurality of virtual device reacting to a PLC.;CONSTITUTION: More than one input-output model divides equipments corresponding to a PLC(110). The input output signal between PLC and the input-output model are extracted(120). Equipment model states are defined(130). External transition and internal transition function are embodied(140). The external function transits equipment model states in response to the external input. The internal transition function transit equipment model states without the external input.;COPYRIGHT KIPO 2010