Acyclic Communication; General Information About Acyclic Communication - Siemens SINAMICS S120 Function Manual

Communication PROFIBUS DP/PROFINET IO
10.1 Communications according to PROFIdrive
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Figure 10-19 Isochronous drive link/Motion Control with PROFIdrive
10.1.4

Acyclic communication

10.1.4.1

General information about acyclic communication

Description
With acyclic communication, as opposed to cyclic communication, data transfer takes place
only when an explicit request is made (e.g. in order to read and write parameters).
The read data set/write data set services are available for acyclic communication.
The following options are available for reading and writing parameters:
● S7 protocol
● PROFIdrive parameter channel with the following data sets:
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This protocol uses the STARTER commissioning tool, for example, in online mode via
PROFIBUS.
– PROFIBUS: Data set 47 (0x002F)
The DPV1 services are available for master class 1 and class 2.
– PROFINET: Data set 47 and 0xB02F al global access, data set 0xB02E as local
access
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Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4
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Drive Functions