General Information About Acyclic Communication - Siemens SINAMICS Series Operating Instructions Manual

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Table of Contents

Overview of important parameters (see SINAMICS DCM List Manual)

• p0978[0...24]

• p8815[0...1]

• p8839[0...1]

Acyclic communication

General information about acyclic communication

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 record" and "Write data record" services are available for acyclic

communication.

The following options are available for reading and writing parameters:

● S7 protocol

This protocol uses the STARTER commissioning tool, for example, in online mode via

● PROFIdrive parameter channel with the following data sets:

– PROFIBUS: Data block 47 (0x002F)

– PROFINET: Data block 47 and 0xB02F al global access, data set 0xB02E as local

Please refer to the following documentation for a detailed description of acyclic

communication:

Reference: PROFIdrive Profile V4.2, October 2015, Order No: 3.172

• PROFIBUS DP:

The addressing is carried out via the logical address or the diagnostics address.

• PROFINET IO:

The addressing is only undertaken using a diagnostics address which is assigned to a

module as of slot 1. Parameters cannot be accessed via slot 0.

SINAMICS DCM DC Converter

Operating Instructions, 12/2018, A5E34763375A

IF1 PROFIdrive PZD telegram selection

List of drive objects

IF1/IF2 PZD functionality selection

PZD Interface hardware assignment

The DPV1 services are available for master class 1 and class 2.

Descriptions of functions

10.3 Communication according to PROFIdrive