Siemens Simatic ET 200pro FC, Руководство по эксплуатации

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Commissioning and optimization (software)
7.4 Commissioning of communication between the S7 CPU and the frequency converter
ET 200pro FC
Operating Instructions, 07/2016, A5E01100763B AC
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Note
Please note that the way cyclic data are interpreted depends on how the frequency converter
is parameterized (P2051, P0922).
7.4.3 Parameter transfer in the PROFIdrive profile
7.4.3.1 Block call
Acyclic data transfer can take place parallel to cyclic data transfer. The acyclic data transfer
mode allows:
● Large quantities of user data (on PROFIBUS up to 240 bytes) to be exchanged
● Access through other PROFINET hosts (Class 2 masters, or in the case of PROFINET IO
by other IO controllers, e.g. commissioning tools) is possible.
Use of the expanded bus functions
There are suitable channels available in the frequency converters for the different masters
and IO controllers and for the different data transmission rates:
● Acyclic data exchange with the same master class of Class 1 or the same IO controller:
Use of the READ and WRITE functions. In this case, the content of the transferred data
block corresponds to the structure of the non-cyclic parameter channel in accordance
with the PROFIdrive profile, V4.0 (with data block 47 (DS47)).
● Acyclic data exchange with the help of a SIEMENS startup tool (master of Class 2 or
supervisor) (e.g. STARTER). The startup tool can acyclically access parameters and
process data in the frequency converter.
● Acyclic data exchange with a SIMATIC HMI (Human Machine Interface) (second master
of Class 2 or second supervisor). The SIMATIC HMI can acyclically access parameters in
the frequency converter.
● Instead of a SIEMENS commissioning tool or a SIMATIC HMI it is also possible for an
external master (master of Class 2) or an external supervisor, as defined in the acyclic
parameter channel according to the PROFIdrive profile, Version 4.0 (with DS47), to
access the frequency converter.