Operation
7.4 Communication according to PROFIdrive
SINAMICS DCP
Operating Instructions, 09/2019, A5E34382853K
197
Figure 7-16 Reading and writing data
Properties of the parameter channel
● One 16-bit address exists for each parameter number and subindex.
● Concurrent access by several additional PROFIBUS masters (master class 2) or
PROFINET IO Supervisor (e.g. commissioning tool).
● Transfer of different parameters in one access (multiple parameter request).
● Transfer of complete arrays or part of an array possible.
● Only one parameter request is processed at a time for each controller/device connection
(no pipelining).
● A parameter request/parameter response must fit into a data set (e.g. PROFIBUS: max.
240 bytes).
● The task or response header are user data.
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