The state equation of Petri net for the LD program

Gi Bum Lee Gi Bum Lee,J.S Lee

doi:10.1109/icsmc.2000.884466

The state equation of Petri net for the LD program

Gi Bum Lee Gi Bum Lee, J.S Lee

https://doi.org/10.1109/icsmc.2000.884466

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Publication Date: Oct 8, 2000

Citations: 10

Affiliation: Pohang University of Science and Technology, Research Institute of Industrial Science and Technology

#Ladder Diagram #Petri Net + Show 5 more

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Abstract

This paper presents the process for converting A and B contacts in the ladder diagram (LD) into a Petri net (PN). In order to represent the A and B contacts in the LD program with the PN graph, the concept of preservation arc is introduced. The resulting PN is then compared with the conventional PN using a timing chart. The state equation for the A and B contacts is constructed in a transition vector. Using the equation, each state equation for the LD program is created, such as the A contact function and the B contact function. The state equations are validated using examples.

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