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22A-A4P5F104
通常从项目定义阶段开始,同时生成设计文档。在项目执行过程中,如果控制系统的定义和文档的编制都遵循项目程序,那么控制器的编程实际就是项目执行的一个中间步骤,可以提供更有效的开发。使用可复用代码、标准对象库和复制工具,能够进一步提高开发效率。
在项目的整个编程阶段,可使用测试程序进行测试。如果需要在多个装置上运行,请先在单个装置上运行,并在部署到下一个装置之前,对其进行测试。
在开发过程中,使用复制工具不仅可以节省时间,还有助于程序开发时“误操作”导致的问题。
02
是否允许修改和更新?
开发的应用程序应易于终用户的理解。在系统集成项目结束时,开发或升级的应用程序需要移交给客户。好能够以经常使用系统的人容易理解的方式开发应用程序。
系统集成商应该成为客户的合作伙伴,而不是开发“专有”的应用程序。在整个项目的生命周期内,系统集成商应与客户合作进行设计审查。这有助于确保客户期望与系统集成商的设计之间的无缝衔接。
在开始编程之前,应用程序的组织就应该开始了。通常需要考虑多个因素,例如,应用程序的控制对象,系统的大小和复杂性,项目是全新的还是对现有应用的升级等。
同样重要的是,与客户深入讨论,了解他们的标准术语和工厂区域,以便将其纳入到应用中。目标是生成终用户可以轻松导航以定位特定设备的应用程序。
在生产过程中,易于导航对于进行故障排除尤为重要。因为“梳理PLC代码”而导致工艺过程或设备的任何计划外停机都可能会带来收入损失。
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