JANCD-SP20B-486614模块备件使用书

JANCD-SP20B-486614
PLC电源用于为PLC各模块的集成电路提供工作电源。同时，有的还为输入电路提供24V 的工作电源。电源输入类型有:交流电源(220VAC或110WAC),直流电源(常用的为24VDC).6底板或机架大多数模块式PLC使用底板或机架，其作用是:电气上,实现各模块间的联系，使PU 能访问底板上的有模块，机械上，实现各模块间的连接，便各模块构成一一个整体。7 PLC的通信联同依靠*的工业网络技术可以迅速有效地收集、传送生产和管理数据。因此，网络在自 动化系统集成工程中的重要性越来越显著，甚至有人提出网络就是控制奉’的观点说法。PLC具有通信联网的功能，它使PLC与PLC之间、PLC与上位计算机以及其他智能设备之 间能够交换信息，形成一一个统一的整体， 实现分散集中控制。多数PLC具有RS 232接口，还 有一些内置有支持各自通信协议的接口。PLC的通信现在主要采用通过多点接口(MPI) 的数 据迪讯、PROFIBUS或工业以太网进行联网。

JANCD-SP20B-486614
The PLC power supply is used to provide working power for the integrated circuit of each PLC module. At the same time, some also provide 24V working power supply for the input circuit. Power input types: AC power supply (220VAC or 110wac), DC power supply (24VDC is commonly used) 6 baseplate or rack
Most modular PLCs use baseboards or racks. Their functions are: electrically, to realize the connection between modules, so that Pu can access the modules on the baseboard; mechanically, to realize the connection between modules, so that each module can form a whole. 7 communication connection of PLC
Relying on the industrial network technology of * can quickly and effectively collect, transmit production and management data. Therefore, the importance of network in the automation system integration engineering is becoming more and more obvious. Some people even put forward the view that network is control.
PLC has the function of communication networking, which enables information exchange between PLC and PLC, between PLC and upper computer and other intelligent devices to form a unified whole and realize decentralized and centralized control. Most PLCs have RS 232 interfaces, and some have built-in interfaces that support their own communication protocols. At present, PLC communication mainly adopts data communication through multipoint interface (MPI), PROFIBUS or industrial Ethernet for networking.