To achieve the safe and reliable operation of high power supply in HL-2A Tokamak, an logic control and protection system based on Siemens PLC is applied.
给出了大功率电源控制系统的控制要求、功能和工作原理以及系统PLC硬件构成图和软件流程框图，总结了系统研制中一些实际问题的解决办法。
This paper introduces two common ways to implement protection system of steam turbine, one is to fulfil it in Distrubuted Control system and the other is to use Programmable Logic Controller.
介绍了汽轮机保护系统常见的两种实现方式，一是在分散控制系统中实现汽轮机保护系统，二是运用可编程控制器实现汽轮机保护系统。
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