As specified in the PROFIBUS guidelines, an ident number (ID number) is required for all PROFIBUS devices using PROFIBUS-DP communication (except of Master Class 2 devices). An ID number is also required for PROFIBUS-FMS devices if the FMS device can be configured with a GSD file. The ID number allows devices connected to the bus to be identified with a minimum amount of protocol overhead. In addition, the ident number is used to archive files which contain information on device features and configuration (so-called GSD files). An ID number is only assigned for devices which conform with the PROFIBUS guidelines.
Manufacturers must register each device type at PROFIBUS Nutzerorganisation e.V. (PNO) and get either a manufacturer and/or profile specific ID number. The ident number is not a serial number. The value range is 0001 Hex to FFFE Hex. As soon as an ID number for a device type has been assigned to a manufacturer by PNO, this number can be used for each manufactured device of this type without renewed registration. If the device is modified technically, it remains associated with the device type provided that it is still possible to describe the parameters, modules and options (e.g. modular I/O devices) in a single GSD file. The use of an already existing ID number is only possible in exceptional cases. Additionally a corresponding manufacturer declaration is needed.

Download the Registration Info as PDF:

PROFIBUS ID-Table

Top