用电子设备描述语言（EDDL）来操作和确定复杂领域设备的参数

Use EDDL to Operate and Set Equipment Parameters in Complicated Field

文章目的在于指明现场设备的复杂性概念，并且通过介绍电子设备描述语言（EDDL）在研发西门子400系列变频器过程中的应用，展示复杂电子设备描述（EDD）语言开发与应用的重要意义与提高研发效率节约几十万欧元研发资金的经济效益。

The article targeted to explain the complex concept of on spot equipments and introduced the application of Electronic Device Description Language （EDDL） in developing Siemens 400 series inverter. The significance of developing and applying EDDL is fully showed, and economic effect of thousands euros are saved.