A product certificate shows compliance of a device manufacturer’s product, such as an IO, sensor, drive, or encoder. The certificate proves a device has passed all testing according to the PROFINET standards. A technology certificate certifies the compliance of a reference design (solution), usually in form of a development or evaluation board, that implements the PROFINET protocol inside a device manufacturer’s product. The chosen solution might be, for example, an ASIC, software stack, module, or plugin board. This certificate shows that the solution intended to be used in the PROFINET device is certifiable according to the PROFINET standards.