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为满足广大中小企业仪控系统升级换代的需求，用高质量的仪控设备拼装成低成本的DCS。其核心的方法就是：充分发挥每种设备的内在功能；与被控系统相适应的规模能力与速度；经济实用的后备方法；低廉的系统成套与软件取费。该文对几种设备进行了介绍分析，解释其高质量但系统低成本的原因。
To meet the majority of SME instrument control system upgrade needs, with high-quality instrumentation equipment assembled into low-cost DCS. Its core approach is to: give full play to the intrinsic function of each device; with the controlled system to adapt to the scale capabilities and speed; economical and practical backup methods; low system packages and software fees. This article introduced several devices to explain why they were of high quality but low system cost.