Currently, is the PLC from Siemens the only product that has PROFINET functionality?
Currently, is the PLC from Siemens the only product that has PROFINET functionality?
目前是否只有西门子的PLC具有PROFINET功能？
Currently, is the PLC from Siemens the only product that has PROFINET functionality?
目前是否只有西门子的PLC具有PROFINET功能？