(完整 word 版)水塔水位控制 PLC 系统设计
课堂是师生活动的主要场所,课堂教学是促进学生成长和实现教师自身发展的主要途径。追求课堂教学的有效性,已成为各级学校现阶段深化课程改革和推进素质教育的首要问题。初中数学课堂的有效教学
Electricity lines, equipment inspections, found hidden in time for rectification, maintenance, and security. 9, do not use an open flame in the classroom, prohibit burning stove, lit candles, mosquito repellent, no smoking, and banning messy wiring. Without using any household appliances is not allowed. 10, live on campus faculty members, must lead by example, and educate families and children ready to fire. 11, household use of gas in schools, to master proper usage, pay attention to the leak-proof, explosion-proof, fireproof, closing valve after use to ensure security. 12, dining room must be qualified, and annual testing of pressure vessels, to regularly check, the canteen workers must be certified, strictly by operation operation, gas tank and stove safety distance of 1.5 meters, to prevent accidents. 13, the adverse consequences caused by ignoring fire safety regulations, will be punished, until investigated for legal responsibility. Song Lin Xiang Liu Jia ping elementary school March 2016 Xiang Liu Jia ping elementary school, pine slopes surrounding safety management system 1 teachers and students, the surrounding area of the school governance covers personal and food hygiene, cultural events and other aspects, integrated governance shall
obtain wide support and full cooperation of the community. On the surrounding environment in schools should be closely monitored. 2, school work at the same time, should pay attention to the safety management of school environment, should take the initiative to contact the district police station, the village Committee, Correctional Centre, Township government, business management and other departments to do a good job management. 3, teacher on duty with the exception of inspections in schools, should also pay attention to environmental inspections near the campus, found that the jobless migrants from rural areas, for example, harassment of students and a variety of accidents, according to different situations reported school officials or the police station in a timely manner, to protect the safety of students. 4, every day before school, teachers remind students, pay attention to traffic safety. 5, should educate students to respect social ethics, and various regulations, maintaining public order, and fight the bad guys, and grasp the correct ways and means of maintaining and improving students ' self-care ability. 6, the establishment of emergency rescue teams of teachers in schools, on high alert and deployed. Song Lin Xiang Liu
Jia ping elementary school March 2016 song Lin Xiang Liu Jia ping primary school teachers and students organizations out of safety management system organization activities between teachers and students, to draw up a precise plan and security measures must be signed by the school officials to review the programme of activities agreed upon Correctional Center agreed to implement. Organization to the field relatively far or activities require approval by the Deputy Director of the Education Bureau in charge of security. 2, each activity should have a specific responsibility, pay attention to the persons age, physical match. Route 3, activities, location, field surveys should be carried out in advance. 4, activities for the means of transport should explain the situation to the school to comply with vehicle, safety requirements, before the line for repairs. 5, each activity must have security, emergency response plan for accidents. 6, picnics, hiking, picnic to pay attention to fire prevention, food poisoning, prevention of fall accidents 7, the activities near the rivers, reservoirs, no measures or do not meet the security requirements of the Organization and not let students into the water1
目录
摘 要 ..................................................................................2
第 一 章 绪 论 ..............................................................................2
1.1 可 编 程 控 制 器 的 产 生
...........................................................................2
1.2 PLC 的发展...................................................................................................4
1.3 PLC 的基本结构 ..........................................................................................5
1.4 PLC 特点.......................................................................................................9
1.5 PLC 的工作原理........................................................................................10
1.6 梯形图程序设计及工作过程分析...........................................................12
第 二 章 水 塔 水 位 系 统 PLC 硬 件 设 计 ......................................14
2.1 要求独立完成水塔水位控制 PLC 系统设计与调试。 ........................14
2.2 水塔水位系统控制电路 ...........................................................................15
2.3 输入/输出分配..........................................................................................16
2.3.1 列出水塔水位控制系统 PLC 的输入/输出接口分配表...............16
2.3.2 水塔水位系统的输入/输出设备 .....................................................17
第 三 章 水 塔 水 位 控 制 系 统 PLC 软 件 设 计 ...............................18
3.1 工作过程....................................................................................................18
3.2 程序流程图 ................................................................................................19
3.3 梯形图.........................................................................................................20
3.4 水塔水位控制系统梯形图的对应指令表..............................................21
第 四 章 设 计 总 结 ....................................................................22
辞 谢 ..........................................................................23
参 考 文 献 .................................................................................24