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Applied in cigarette control system of automation logistics system, industrial equipment field bus control technology has become the most effective tool to solve the question that traditional cigarette production exist raw material prepare time to be long and weak adaptability to market. And its open structure system has created the condition to extend for the system expansion. That applying PROFIBUS bus technology in the control system of cigarette automation logistics system, and solving the existed latent problem, is one of research results for the paper.

将工业设备现场总线控制技术应用于卷烟自动化物流系统的控制系统之中,成为解决传统卷烟生产存在的原材料准备时间较长,适应市场能力弱的最有效的工具,而其开放性的结构体系,又为系统的扩展和延伸创造了条件,将PROFIBUS总线技术应用于卷烟自动化物流系统的控制系统之中,并解决存在的潜在问题,是本文的研究成果之一。

But under some special condition, it requires nobody on duty in the field, such as unattended artillery control platform, unattended power station, etc. In such case, it must deploy telecontrol technology based on the Internet whose control scale is much wider.

而在某些特殊场合要求控制作用的范围更广,比如无人值守火炮控制平台、无人值守电站等,要求现场不能有人的参与,这就必须采用基于网络的远程控制技术。

In the article introduced in the paper engine drive control system, PLC controls the core, it constitutes the DCS control system through the field bus and the frequency changer, has realized entire paper engine drive functions and so on in process acceleration, deceleration, tight paper, speed chain.

文中介绍的纸机传动控制系统中,PLC是控制核心,它通过现场总线与变频器构成DCS控制系统,实现了整个纸机传动过程中的加速、减速、紧纸、速度链等功能。

In the article introduced in the paper engine drive control system,PLC controls the core, it constitutes the DCS control systemthrough the field bus and the frequency changer, has realizedentire paper engine drive functions and so on in processacceleration, deceleration, tight paper, speed chain.

文中介绍的纸机传动控制系统中,PLC是控制核心,它通过现场总线与变频器构成DCS控制系统,实现了整个纸机传动过程中的加速、减速、紧纸、速度链等功能。

The application of minimal tension control in high speed wire production is introduced.

介绍了微张力控制在高速线材生产中的应用,该控制系统采用工业以太网与现场总线控制相结合的方式,由操作级、过程级和传动级三部分组成。

The control to the hydraulic shield tunneling system is realized with PLC based on CC-link Profibus, and the control strategy is analyzed as well.

利用基于CC-Link现场总线的PLC控制实现了盾构液压系统的控制功能,同时对盾构液压系统PLC控制策略进行了分析。

Based on the investigation and research on shield machine technology, and studying the hydraulic thrust control system of shield machine by reading, analyzing, summarizing lots of literatures and investigating at site. Referring to the simulation experiment platform of shield machine built by ZheJiang University and ShangHai Tunnel engineering corp., analyzing the work principle of the thrust hydraulic system and the thrust attitude control method of shield machine.

在对盾构技术充分调研的基础上,通过阅读、分析及综合大量文献和现场调研,参照浙江大学和上海隧道工程公司共建的盾构模拟实验台,分析了盾构液压推进系统工作原理及其掘进姿态控制的方法,对盾构液压推进控制系统进行了控制仿真研究。

This paper introduces how to use PLC realize PID automation control system in constant liquid level system of waterworks though a instance project. It adjusts liquid level by control the valve though PID arithmetic and deals with outside program, makes the liquid level constant at the expectation value. The adjusting time is the same as manual control, but the water quality is better. Its advantages are reaction rapidness, auto-control disengage intervenor, quick protection of fault, more safety and stabili...

本文以一工程实例介绍了如何用PLC在水厂的滤池实现PID恒水位控制,它通过PID算法和外围的程序处理,通过控制阀门开度来调节水位,使水位基本恒定在期望值,并且阀门调节次数基本与手动调节一样,但水质却明显好很多,更重要的是对现场适应能力强,反应快,而且完全脱离人为干预进行全自动控制,对故障也有快速保护,更具安全稳定性。

This paper introduces how to use PLC realize PID automation control system in constant liquid level system of waterworks though a instance project. It adjusts liquid level by control the valve though PID arithmetic and deals with outside program, makes the liquid level constant at the expectation value. The adjusting time is the same as manual control, but the water quality is better. Its advantages are reaction rapidness, auto-control disengage intervenor, quick protection of fault, more safety and stabilization.

本文以一工程实例介绍了如何用PLC在水厂的滤池实现PID恒水位控制,它通过PID算法和外围的程序处理,通过控制阀门开度来调节水位,使水位基本恒定在期望值,并且阀门调节次数基本与手动调节一样,但水质却明显好很多,更重要的是对现场适应能力强,反应快,而且完全脱离人为干预进行全自动控制,对故障也有快速保护,更具安全稳定性。

The article describes a process control system based on ethernet and fieldbus technology. This system can complete parameter control, storage and analysis, such as temperature, pressure, flow rate and level. In the process of control, we use PID algorithm and realize isobaric water supply, then complete the stabilization of water tank.

利用以太网,结合西门子现场总线搭建了过程控制平台,完成了对温度、压力、流量和液位这些典型过程参数的采集、存储和分析,并利用PID算法通过对变频器、电控阀门的控制,实现恒压供水任务,进而完成对于水箱液位稳定的控制。

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