关键词: 分布可重构生产线, STEP-NC控制器, IEC6 1499标准, 数控设备, Device模型, 功能块, 数控系统

Abstract: Aiming at Computer Numerical Control(CNC) equipment controller as network physical node of infrastructure level in networked reconfigurable production line, adaptability and enhancement of STandard for the Exchange of Product model data-NC(STEP-NC) compliant open architecture controller for distributed and reconfigurable manufacturing were analyzed. Based on STEP-NC data program, IEC 61499 mechanism was introduced to improve overall reconfigurable control performance. Making machining feature as bridge connecting STEP-NC and IEC 61499, Device model of CNC equipment compliant to IEC 61499 was constructed. Flexible control structure was designed centering on axis control based Resource model and local machining function module, also design method for event-driven major function modules was discussed in detail. A case study for four-axis motion control platform was provided at last.

Key words: distributed and reconfigurable production line, standard for the exchange of product model data-numerical controller, IEC 61499 standard, computer numerical control equipment, Device model, function block, numerical control systems