Technical data

12.5 FDL_LIFE_LIST_CREATE_LOCAL
This service supplies status information about all active stations and all
passive stations located in the GAP area of the service requesting station.
To provide the status information, no information is requested from remote
station, i.e. the bus is not subjected to extra load by this service.
12.5.1 FDL_LIFE_LIST_CREATE_LOCAL Request
The FDL_LIFE_LIST_CREATE_LOCAL 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_LIFE_LIST_CREATE_LOCAL=1B
H
link_status /
service_class/
SAP number/
rem_add_station/
rem_add_segment
3rd-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 12.9.4.
Service and Diagnostics using FMA Functions B8976060/02
Volume 1 12 - 22