Technical data

The following messages can occur with this FMA service:
The reaction of the user program to receiving this message is not fixed.
The statistics provide information about the number of token rotations and
the number of received tokens in the individual active stations.
Value of
link_status
Abbrev.
PROFIBUS
Meaning
FDL_READ_LAS_STATISTIC_CTR
00
H
OK Positive acknowledgment: service executed,
statistics read.
15
H
IV Negative acknowledgment: "..._RESET"
currently active or no receive buffer or
passive station.
Table 12.12 link_status Message for FDL_READ_LAS_STATISTIC_CTR Confirmation
Parameter Meaning
las_cycle_ctr Number of token rotations (reference)
station x Number of received tokens station x
station y Number of received tokens station y
.
.
.
.
station z Number of received tokens station z
Table 12.13 Info in the Statistics Block for FDL_READ_LAS_STATISTIC_CTR Confirmation
Service and Diagnostics using FMA Functions B8976060/02
Volume 1 12 - 34