【摘要】 PLC系统易受到恶劣环境、电磁干扰或安装使用不当等因素影响。提高PLC应用系统可靠性对提高劳动生产率、有效利用资源和减少能耗、提高煤矿生产安全、改善劳动条件有重要作用。更多还原

【Abstract】 PLC system easily be received the adverse circumstance,the electromagnetic interference or installs the use not when and so on the factors affect,enhances the PLC application system reliability to enhance the labor productivity, effectively using the resources and the reduced energy consumption,enhances the coal mine production safety,the improvement work condition has the vital role.更多还原