Technical data

The following messages can occur with the FMA service
FDL_READ_VALUE:
The reaction in the user program when this message is received is not
fixed.
Value of
link_status
Abbrev.
PROFIBUS
Meaning
FDL_READ_VALUE
00
H
OK Positive acknowledgment: service executed, bus
parameters read
15
H
IV Negative acknowledgment: "...RESET" currently
active or no receive buffer
Table 12.4 link_status Message for FDL_READ_VALUE Confirmation
B8976060/02 Service and Diagnostics using FMA Functions
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