确定模块式结构的直流屏电源监控装置，分为主监控单元、绝缘检测单元、系统参数监控单元、电池巡检单元。
The DC power system is determined to be composed of the main monitoring system , the DC insulation monitoring system and the parameter monitoring system with a blocking structure.
简要介绍直流驱动的门机电控系统改造，包括数字式直流调速器、PLC和触摸式工业图形监控系统的应用。
This paper introduces rebuilding electric control system of portal crane drived by DC and the application of digital DC speed controller, PLC and touchable industrial graphic monitoring system.
介绍了一种利用PLC控制的直流电源屏监控系统的控制要求、系统组成及功能等。
The control systems, system s constitution and functions of a monitoring and control system of DC power source screen based on PLC were introduced in the paper.
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