充分说明PLC在大规模开关量的管理和控制、提高产品的可靠性等方面具有极好的性能和优势。
It is shown that PLC has better performance in managing and controlling for great switch amount, improving the control system reliability for platform booms.
实际的装载量靠近极限值的同时,又不断与四个极限值相比较。起重机控制电容可以作为开关。
The actual load is compared to four limit values, and by achieving the limit value, the relay of the crane controller could be switch.
路开关量输出接口,用于限量报警或定量控制。
Two switch measures ports (upper and lower limits), used in limited alarm or the ration controlling.
本系统中的数字量由PLC控制,数字量主要控制真空系统、烧结炉和化学气相沉积炉中各通气管路中的开关量。
In the system the digital is controlled by PLC, digital is mainly used to control the switch data of pipeline in the vacuum system and metallurgical vessel and CVD vessel.
研究了数控代码中开关量信号的PLC的实现方法,并对其控制逻辑进行了举例说明。
The method was researched on how to realize the switching value signal by the way of the PLC in the NC code, and its control logic was illustrated.
为防止由控制量切换引起的系统扰动,引入比值切换方式;为消除系统余差,引入智能积分开关。
In order to damp the disturbances aroused by control switch and eliminate the system stead-state error, ratio switch and intelligent integrated switch are introduced int.
所开发的系统具有简单方便的操作性能,可控制机床的三个驱动轴和多个开关量协调工作,自动完成筛管切分加工的整个工艺流程。
The system is easy to operate and can make three axeses of the machine tool and certain switch signals work in phase, completing the cutting process automatically.
它能实现开关量和模拟量的多路循环检测与控制,使得复杂的检测与控制工作变得简单而且迅速。
It can realize detection and control of multiple recurrences of switching values and analog quantities and make the complex detection and control handy and rapid.
远程控制模块实现远程模拟量对阀门开度大小的控制及远程开关量对阀门全开、全关的控制。
The remote control module controls the opening of valve by simulant signal. It also controls the open and the close of the valve by on-off signal.
本文介绍了温度继电器自动测试系统的设计,此系统由温控箱、开关量检测电路、温度控制电路、接口电路及工控机等硬件组成。
This system was composed of a temperature controlled tank , switch measurement circuit , temperature control circuit , interface circuit , an industrial manipulative computer, and so on.
利用TMS320F2812作为CPU设计了控制器主板,同时引出了串口和开关量输入输出模块。
The controller main-board is designed with TMS320F2812 as its CPU, and also sets the serial interface and input and output of the switching value on it .
最后,本文讨论了控制系统中用到的开关量的输入和输出电路的设计,并给出了具体的应用电路。
Finally, the cue of the design for switching value input and output interface circuits was given, and then a circuit in accordance with the thought of the design produced.
传统电厂的顺控系统只是控制单台设备及其辅助设备的启停或是几个设备之间开关量的控制。
The conventional sequence system of the power plant is only to control the single equipment and the supporting facility or among the on-off signals of several equipment.
校园作息时间控制系统主要用于学校,对一些以24小时为周期的开关量进行自动控制。
The campus the daily timetable control system which is mainly used in the campus, it auto-control some switches which have periods of 24 hours.
本文采用P 89 V 51rd2单片机作为系统的微处理器,负责进行智能控制算法运算,数据采集,变频器控制信号输出,开关量输入输出等。
In the thesis, I choose P89V51RD2 microprocessor to be in charge of the intelligent control algorithms, data acquisition, inverter control signal output, switching input and output.
电子控制单元ecu采用AT 89 C 51单片机作为微处理器,设计了数据采集模块、开关量输入模块以及CAN通信模块。
Electronic control unit ECU used AT89C51 microcontroller as a microprocessor, including data acquisition module, switch input module and CAN communication module.
通过气缸带动一个活塞抽取和打出物料,并由单向阀控制物料流向,由磁环开关控制气缸行程,即调节灌装量。
The cylinder drives a piston extraction and play materials, and by the one-way valve to control the flow of materials, the magnetic switch control cylinder stroke, which adjust the filling volume.
采用机械阀门控制蒸汽量,寿命长,手柄更舒适,长寿命按钮电源开关。
It adopts the mechanical valve to control the quantity fo steam with the ong life, the more comfortable handle, the long-wait button.
提出了信号的类型取决于阀口开关的规律。控制方式是信号产生和变化的关键、采用比例伺服控制可提高信息传输量等观点。
Several points of views are put forward, such as the type of signals lie on the moving rules of valves, the manners of control is the...
可挂接开关量的烟感、温感控制器及声光控制器、手动控制盒、放弃指示灯等附加设备,组成自动灭火系统。
It can be equipped with smoke and temperature detectors, sound and light alarms, manual controllers, gas release indicators and other accessories to form an automatic fire extinguishing systems.
可挂接开关量的烟感、温感控制器及声光控制器、手动控制盒、放弃指示灯等附加设备,组成自动灭火系统。
It can be equipped with smoke and temperature detectors, sound and light alarms, manual controllers, gas release indicators and other accessories to form an automatic fire extinguishing systems.
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