While the production mission is changed and new production flow chart is acquired, the basic net model of new configuration can be deduced from original one directly.
当生产任务发生改变并建立新的生产流程图时，可直接从原来的基本网模型构造出新构形的基本网模型。
A basis model for managing automobile production line based on PLC is proposed with the introduction of hardware configuration, controlling pattern and application software.
通过对这一管理系统的硬件结构、控制方式、应用软件的介绍，给出基于PLC进行汽车生产线管理的基本模式。
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