现代的PLC通信系统开发,为了实现特定的目标,往往具有不只一种选择。合理的进行技术,框架等方面的选择,对于系统架构的成本,维护,灵活性等方面具有积极的作用。系统架构的成本中不仅包含了完成系统功能所需要的设备成本,开发成本,人力成本,还包含了后期的维护成本。在进行科技的选择时,要注重对科技的集成性,技术支持和服务,技术的成熟度等进行综合的考虑。不仅要尽可能节约短期成本,也要节约长远的成本。 Modern PLC communication system development, in order to achieve specific goals, often have more than one option. Reasonable choice of technologies, frameworks and other aspects have a positive effect on the cost, maintenance and flexibility of the system architecture. The cost of the system architecture not only includes the equipment costs, development costs and labor costs needed to complete the system functions, but also includes the maintenance costs of the latter. In the choice of science and technology, we must pay attention to the integration of science and technology, technical support and services, technology maturity and comprehensive consideration. Not only to save short-term costs as much as possible, but also to save long-term costs.