Abstract
This work introduces a methodology to model a Material Entry System (MES) in a pickling line. The generated model is fundamental for structural and functional analysis of the system, and it is effective to specify the control strategies. The MES is approached as a discrete event system (DES) where, techniques derived from Petri net can be used for its description. These techniques include practical interpretations such as PFS (production flow schema) and MFG (mark flow graph), that had been confirmed they efficiency in hierarchical modeling, analysis and control of DES. In this context, the MES is modeled in different levels of abstraction: a) at conceptual level through the application of PFS; and b) at functional level through the application of MFG. The proposed methodology confirm that the modeling procedure is effective for derivation of the functional specification of the system, which includes control object and control system, and the strategies for its integration with others system.
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