1C31116G04 售后无忧

描述

1C31116G04

PLC和DCS的发展方向
小型化的PLC将向更专业化的使用角度发展，比如功能更加有针对性、对应用的环境更有针对性等等。大型的PLC与DCS的界线逐步淡化，直至完全融和。
DCS将向FCS的方向继续发展。FCS的核心除了控制系统更加分散化以外，特别重要的是仪表。FCS在国外的应用已经发展到仪表级。控制系统需要处理的只是信号采集和提供人机界面以及逻辑控制，整个模拟量的控制分散到现场仪表，仪表与控制系统之间无需传统电缆连接，使用现场总线连接整个仪表系统。

三大控制系统之间的差异
我们已经知道，FCS是由DCS与PLC发展而来，FCS不仅具备DCS与PLC的特点，而且跨出了革命性的一步。而目前，新型的DCS与新型的PLC，都有向对方*拢的趋势。新型的DCS已有很强的顺序控制功能；而新型的PLC，在处理闭环控制方面也不差，并且两者都能组成大型网络，DCS与PLC的适用范围，已有很大的交*。下一节就仅以DCS与FCS进行比较。在前面的章节中，实际上已涉及到DCS与FCS的差异，下面将就体系结构、投资、设计、使用等方面进行叙述。

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