GE DS3800ND1D1Q1H 有一个带有40个空间的塑料母端口

GE DS3800ND1D1Q1H 有一个带有40个空间的塑料母端口

GE DS3800ND1D1Q1H 有一个带有40个空间的塑料母端口

70年代中期，大规模集成电路问世，由于其性能价格比较优越，使自动化仪表工业发生了巨大的变化。

首先是DCS分散型控制系统的出现，逐步成为大中型设备首选的配套自控系统;其次是PLC可编程序控制器的出现取代了中小规模集成电路的逻辑元件、二极管矩阵电路和继电器线路，进而逐步使顺序控制、连锁保护与模拟量回路控制相融合，即电控和仪控一体化;

电动单元组合仪表也更新换代为每个单元仪表内有CPU芯片的单回路智能式仪表，我国统—设计称DDZ-S型仪表虽未能普及，但其系列中的YS-80等引进产品在国内已成批生产。

GE DS3800ND1D1Q1H 有一个带有40个空间的塑料母端口

In the mid-1970s, the advent of large-scale integrated circuits, due to its superior performance and price, the automation instrument industry has undergone great changes.

The first is the emergence of DCS distributed control system, gradually become the preferred supporting automatic control system of large and medium-sized equipment; Secondly, the emergence of PLC programmable controller replaces the logic components, diode matrix circuits and relay lines of small and medium-sized integrated circuits, and then gradually integrates sequence control, interlocking protection and analog loop control, that is, integration of electronic control and instrument control;

The electric unit combination instrument has also been upgraded to a single loop intelligent instrument with CPU chip in each unit instrument. Although DDZ-S type instrument has not been popularized in China, the introduced products such as YS-80 in its series have been mass produced in China.