Technical data

The structure of the user program for sending the request and receiving the
confirmation is exactly as described for the FMA service
FDL_READ_VALUE (refer to Section 12.9.1). The differences simply result
from using a different DB for storing the request or confirmation block.
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Remember that when reading a remote station of a different
manufacturer, the position of the status bytes in the data field
may be different.
For the CP 5430 TF/CP 5431 FMS, the positions of the status bytes are as
described in the manual.
B8976060/02 Service and Diagnostics using FMA Functions
12 - 41 Volume 1