Technical data

12.6 FDL_IDENT
With this service, identification information can be requested from a station
connected to the bus. This can involve both the local or a remote station.
The identification contains the manufacturers name, the PROFIBUS
interface module type, the hardware and software versions.
12.6.1 FDL_IDENT Request
The FDL_IDENT request block must be structured as follows:
com_class 0. byte: format KH, service request to layer 2
here:
FDL request =00
H
user_id 1st byte: freely assignable ID, which is returned
unchanged with the confirmation
(optional)
service_code 2nd byte: format KH, type of service requested:
FDL_IDENT=1C
H
link_status /
service_class/
SAP number
3rd-5th byte: irrelevant
rem_add_station 6th byte: format: KH:,
Range of values of the station address: (0 .. 126)
rem_add_segment 7th byte: irrelevant
The arrangement of the data in a DB from which they can then be read by
the HDB SEND is explained in more detail in Section 12.9.5.
B8976060/02 Service and Diagnostics using FMA Functions
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