大家都知道在profibus中，主站在读取和写入从站连续数据时（大于4个字节）需要使用SFC14和SFC15。那么在profinet中控制器读取或写入IO设备连续数据时又需要怎么处理哪？

例如CPU315-2PN通过IE/PB LINK IO连接ET200S CPU，在组态数据连接时数据长度为10字节、一致性选择全部，那么CPU315-2PN怎样来获取来自ET200S CPU中要求一致性的10个字节哪？

Using SFC 14 "DPRD_DAT" (read consistent data of a DP standard slave) you read out the data of a DP standard slave/PROFINET IO device.

Using SFC 15 "DPWR_DAT" (write consistent data to a DP standard slave) you transfer the data in RECORD consistently to the DP standard slave/PROFINET IO device addressed.