3G3MV-PDRT2 DeviceNet Communications Unit和3G3RV-PDRT2 DeviceNet Communications Card是3G3MV/3G3RV Series Inverter的通信单元,用于和Programmable Controller交换数据。该手册介绍了3G3MV-PDRT2 DeviceNet Communications Unit和3G3RV-PDRT2 DeviceNet Communications Card的操作方法、通信方法和数据设置方法。