基于 PLC 消防报警系统设计 摘 要 火灾对国民经济和人民生命造成了巨大危害，但国外发达国家 对火灾预防及应对上我国和国外发达国家仍存在较大差距，所以，设计出一个可靠高效消防报警控制系统是非常迫切。 本设计完成了利用主要关键控制部件西门子 SIMATIC S7-300 型 PLC 对消防报警控制系统设计。 首先，依照详细控制对象选择适宜 S7-300 系列 CPU，这是控制系统关键部件，在选择了一些火灾探测器类型，探测器选择好坏关系到报警及其它后续系列动作关键。其次，选择与 S7-300 相匹配扩展模块，如数字 I/O 模块、模拟 I/O 模块、电源模块等。最终，完成了控制系统整体设计，达成了控制目标。 关键词：PLC；控制系统；消防报警 PLC Based Fire Alarm System Design ABSTRACT Fire on the national economy and people's lives caused great harm, but developed countries for fire prevention and the response to our country and abroad, there is s gap between the developed countries, therefore, to design a reliable and efficient fire alarm control system is very urgent the. The main advantage of this design is completed the core control unit Siemens SIMA S7-300 PLC type of fire alarm control system design. Key first, depending on the control object to select the appropriate S7-300 series CPU, which is the core component of the control system, the choice of some type of fire det detector alarm related to the choice of good or bad, and other follow-up action series select the S7-300 to match the expansion modules, such as digital I / O modules, anal modules, power modules. Finally, to complete the overall design of the control system to achieve the control objectives. Key Words ：Programable Logic Control；Control System；The Fire Fight Report To The Police 目 录 第一章 绪论 ........................................................................1 1.1 课题讨论目标和意义 ...........................................................1 1....
