In IO-Link there is a standardized way to send "commands" the a field device to perform one time actions within the device. For example, resetting of a counter. It is done with the SystemCommand index. The IODD file is often used to graphically show these commands as "buttons" wh...

I understand that APL physical layer testing is either done by PITL, ODVA, FCG, etc, and is a requirement for getting a PROFINET certification for an APL device. Is it also required that the device have a certificate for Intrinsic Safety (2-WISE / IEC 60079-11) before PNO will issue the PROFINET cer...