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1、摘要本文介绍了热打印机控制系统设计开发过程,其开发环境是Windows,开发工具是SIMATIC,西门子公司可视化编程工具STEP75.0。论文详尽论述了从需求分析,可行性研究,PLC系统设计,程序设计方法详细设计、硬件组套,以及调试的整个开发过程,总结开发过程中的经验以及改进方法遵循可编程控制器PLC的编程方法。本系统开发成功后可以对热打印机进行处全自动操作,改变以往用继电器对生产过程的控制,自动控制可靠性高,抗干扰能力强并且故障低,发生故障后,能够自动报警,PLC程序有完善的诊断功能和显示功能,开发的PLC程序可
2、以随工艺要求的变化而进行添加、删除、修改等维护操作简单易行,在工业自动化中广泛的使用PLC,通过PLC编程对设备进行全自动的控制,提高工作效率和产品质量,减少人力资源,采用可视化编程工具,使开发的目标程序具有良好的人机界面,简单、易用,方便用户操作等特点,达到满足实际应用的需要。论文从软件工程的角度描述了系统的开发过程,从计划期的问题定义一直到开发期原程序代码都进行比较详细的介绍,这将为系统今后随工艺要求进行修改,维护以及进一步开发提供重要的参考资料。关键词:可编程控制器(PLC)热打印机STEP7AbstractT
3、histextintroducedthehotprintercontrolsystemdesignthedevelopmenttheprocess,itstheenvironmentofdevelopmentisaWindows,developpingthetoolisaSIMATIC,thecompanyofSiemensisconsiderabletoturntoweavethedistancetoolSTEP75.0.Thethesisdiscussesindetailstoanalyzefromtheneed
4、,thepossibilitystudies,thesystemofPLCdesigns,theproceduredesignmethodisdetailedtodesign,hardwareawholetheprocessofdevelopmentfor,andadjustingtrying,thesummarydevelopstheexperienceintheprocessandimprovesthemethodfollowstheplaitdistancemethodoftheprogrammablecont
5、rollerPLC.Thissystemcanproceedacontrolforfull-automaticoperation,changingbeforeusingafterelectricappliancestoproductionlinetothehotprinterafterdeveloppingthesuccess,theautomaticcontroldependableishigh,theanti-interferenceabilityisstrongandbreakdownlow,takeplace
6、afterbreakingdown,canreporttothepoliceautomatically,theprocedureofPLCcontainperfectdiagnosisfunctionwithshowthefunction,theprocedureofPLCofthedevelopmentcanwiththevarietythatcraftrequestbuttheproceedingincrease,sdeleteandmodifyetc.maintenancetheoperationissimpl
7、eeasyatargetfor,inindustryautomateextensiveusagePLC,passingPLCweavingdistancetotheequipmentsproceedingfull-automaticcontrol,increasingworkefficiencywithproductquantity,decreasehumanresource,adoptingcanseeingturningweavingdistancetool,makingdevelopmentprocedureh
8、asthegoodman-machineinterface,simple,useeasily,convenientcustomeroperationetc.characteristics,attainsatisfyactualapplieddemand.Thethesisdescribedtheprocessofdevelopmentofthe