内容发布更新时间 : 2024/4/25 15:08:29星期一 下面是文章的全部内容请认真阅读。

responsible for the development of company management, including the development of settlement and settlement standards of preparation, the business unit clearing work inspection and guidance, business settlement audit; 23, is in charge of the company business and costs calculation and nalysis of new projects and to develop standards and provide the basis for decision-making and responsible for the comprehensive economic and technical indicators and statistics, analysis, summary and reporting; 24, the company responsible for audits of various types of business contracts, the principal of contract price (purchase price, freight, taxes, etc), payment method, payment, settlement, such as the reasonableness of the data, authenticity, accuracy; 25, strict enforcement of national tax policy, is responsible for the monthly reporting, including tax calculations, statistics, go through the relevant formalities, receive invoices; 26, the company responsible for all kinds of price (including product price, material prices,Freight, engineering machinery jobs price, price, price) 's terms of market surveys, quotations, price exception report; 27, is responsible for the company's management, including conference organized by price, of historical prices, totals, etc; 28, according to the annual operating plan, annual costs and undergo decomposition, control, analysis and evaluation; responsible for costing and cost control, ensure accounting number is reasonable, correct, and complete accounting report and the company's other reports compiled and reported to work;1．自动门控制装置

一、大作业内容：

1．自动门控制装置的硬件组成：

自动门控制装置由门内光电探测开关K1、门外光电探测开关K2、开门到位限位开关K3、关门到限位开关K4、开门执行机构KM1（使直流电动机正转）、关门执行机构KM2（使直流电动机反转）等部件组成。（直流电机电压：DC110V） 2．控制要求：

1）当有人由内到外或由外到内通过光电检测开关K1或K2时，开门执行机构KM1动作，电动机正转，到达开门限位开关K3位置时，电机停止运行。

2）自动门在开门位置停留8秒后，自动进入关门过程，关门执行机构KM2被起动，电动机反转，当门移动到关门限位开关K4位置时，电机停止运行。

3）在关门过程中，当有人员由外到内或由内到外通过光电检测开关K2或K1时，应立即停止关门，并自动进入开门程序。

4）在门打开后的8秒等待时间内，若有人员由外至内或由内至外通过光电检测开关K2或K1时，必须重新开始等待8秒后，再自动进入关门过程，以保证人员安全通过。 二、大作业要求：

1．列表说明I/O分配，并选择PLC。 2．画出顺序功能图。 3．画出PLC端子接线图。 4．设计PLC控制梯形图。

responsible for the development of company management, including the development of settlement and settlement standards of preparation, the business unit clearing work inspection and guidance, business settlement audit; 23, is in charge of the company business and costs calculation and nalysis of new projects and to develop standards and provide the basis for decision-making and responsible for the comprehensive economic and technical indicators and statistics, analysis, summary and reporting; 24, the company responsible for audits of various types of business contracts, the principal of contract price (purchase price, freight, taxes, etc), payment method, payment, settlement, such as the reasonableness of the data, authenticity, accuracy; 25, strict enforcement of national tax policy, is responsible for the monthly reporting, including tax calculations, statistics, go through the relevant formalities, receive invoices; 26, the company responsible for all kinds of price (including product price, material prices,Freight, engineering machinery jobs price, price, price) 's terms of market surveys, quotations, price exception report; 27, is responsible for the company's management, including conference organized by price, of historical prices, totals, etc; 28, according to the annual operating plan, annual costs and undergo decomposition, control, analysis and evaluation; responsible for costing and cost control, ensure accounting number is reasonable, correct, and complete accounting report and the company's other reports compiled and reported to work;2．汽车自动清洗装置PLC控制

一、 大作业内容：

编写如图汽车自动清洗装置梯形图控制程序，

控制要求如下图：

输出电压：AC220V 二、大作业要求：

1．列表说明I/O分配，并选择PLC。 2．画出顺序功能图。 3．画出PLC端子接线图。 4．设计PLC控制梯形图。

responsible for the development of company management, including the development of settlement and settlement standards of preparation, the business unit clearing work inspection and guidance, business settlement audit; 23, is in charge of the company business and costs calculation and nalysis of new projects and to develop standards and provide the basis for decision-making and responsible for the comprehensive economic and technical indicators and statistics, analysis, summary and reporting; 24, the company responsible for audits of various types of business contracts, the principal of contract price (purchase price, freight, taxes, etc), payment method, payment, settlement, such as the reasonableness of the data, authenticity, accuracy; 25, strict enforcement of national tax policy, is responsible for the monthly reporting, including tax calculations, statistics, go through the relevant formalities, receive invoices; 26, the company responsible for all kinds of price (including product price, material prices,Freight, engineering machinery jobs price, price, price) 's terms of market surveys, quotations, price exception report; 27, is responsible for the company's management, including conference organized by price, of historical prices, totals, etc; 28, according to the annual operating plan, annual costs and undergo decomposition, control, analysis and evaluation; responsible for costing and cost control, ensure accounting number is reasonable, correct, and complete accounting report and the company's other reports compiled and reported to work;3．皮带运输机的控制系统。

一、大作业内容：

在建材、化工、机械、冶金、矿山等工业生产中广泛使用皮带运输系统运送原料或物品。供料由电阀DT控制，电动机M1、M2、M3、M4分别用于驱动皮带运输线PD1、PD2、PD3、PD4。 储料仓设有空仓和满仓信号，其动作示意简图如图所示，其具体要求如下：

其控制要求如下：

（1）正常起动，仓空或按起动按钮时的起动顺序为M1、DT、M2、M3、M4，间隔时间5s； （2）正常停止，为使皮带上不留物料，要求顺物料流动方向按一定时间间隔顺序停止，即正常停止顺序为DT、M1、M2、M3、M4，间隔时间5s；

（3）故障后的起动，为避免前段皮带上造成物料堆积，要求按物料流动相反方向按一定时间间隔顺序起动，即故障后的起动顺序为M4、M3、M2、M1、DT，间隔时间10s； （4）紧急停止，当出现意外时，按下紧急停止按钮，则停止所有电动机和电磁阀； （5）具有点动功能。（手动单独点动控制各皮带和料斗）

所有输出电压：AC220V

二、大作业要求：

1．列表说明I/O分配，并选择PLC。 2．画出顺序功能图。 3．画出PLC端子接线图。 4．设计PLC控制梯形图。