HE670ADC810 元器件的集成度越来越高

MVME162-223
MVME-162-223
MVME162-233
MVME162-243
MVME162-253
MVME162-262
MVME162-263
MVME162-322
MVME162-323
MVME162-333
MVME162-353
MVME162-403
MVME162-410
MVME162-411

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描述

PLC在开放性方面也有了实质性的突破。前十多年PLC被攻击的一个重要方面就是它的专有性,现在有了极大的改观。PLC采用了各种工业标准,如IEC 61131,IEEE802.3以太网,TCP/IP,UDP/IP等,各种事实上的工业标准,如Windows NT,OPC等。

PLC在硬件上也有长足进步。微电子技术的进展全都运用到PLC中, 元器件的集成度越来越高,促使PLC成本下降和可靠性提高。专为PLC的CPU设计的PLC-on-a-chip芯片业已问世多年。PLC的高端产品在体系结构和操作系统上都有了质的变化,性能大幅提高。一个机架上可装多个CPU模块。也出现了以Web为基础的PLC系列产品。

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