The following information is general for all PROFINET devices.

  • Device Information (PN-M):Information that is related to the device with the PROFINET connection to the network. Examples are VendorID, DeviceID, DCP type identification, DNS Name of Station and IP-Address.
  • Physical Topology (PN-M):PROFINET can discover the physical topology of installed devices as all devices exchange neighborhood information with the LLDP protocol.
  • Real Configuration (PN-M):The real configuration of a PROFINET device contains slots and subslots with modules and submodules plugged in the device independent from any controller connection. Each module/submodule is identified by a module/submodule identification number which must be unique in the scope of one DeviceID. One defined submodule is the representative of the device; one submodule is the representative of a module. Therefore, the submodule is the carrier of all information. Modules and submodules which are installed in the real configuration of the device can be discovered with a PROFINET service. These modules/submodules are the carrier of the asset information.
  • Expected Configuration (PN-M):The expected PROFINET configuration is the result of the PROFINET engineering in the configuration tool of the PLC. It contains the devices, modules, submodules which are configured in the engineering system of the PLC, downloaded to the controller and transferred to the devices during startup.The expected configuration can be read with a defined PROFINET service.
  • Module Diff Block (PN-M):The difference between the expected configuration and the real configuration. The reference to the difference is the expected configuration. The module diff block can be read with a defined PROFINET service.