IP Address
Normally the IP numbers of PROFINET IO devices are assigned via the PROFINET network via DCP (Discovery and Configuration Protocol). HMS Networks recommends not using the Network Configuration Object (04h, instances #3 - #6) during the initialization phase for PROFINET modules, unless the end user has requested the IP address to be set to a specific value (by for example using a keypad). The reason is that when a factory default reset command is received from the PROFINET network (via DCP) the node must be available after a hardware reset with the default IP-address (0.0.0.0).
If the IP suite is set using the Network Configuration Object (04h), the key word AddressAssignment = “DCP;LOCAL” must be added to the GSD file in the section DeviceAccessPointItem:
<DeviceAccessPointItem AddressAssignment=“DCP;LOCAL”...>