Acyclic Communication - Siemens Sinamics S120 Function Manual

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● An alarm is issued if the same hardware (Control Unit onboard or COMM BOARD) is

● If the CAN module (CBC10) is used, the entry of p8839[0] = 2 is not permissible (no

● If p8839[x] is set to 2, and the COMM - BOARD is missing/defective, then the

Overview of important parameters (see SINAMICS S120/S150 List Manual)

● p0922 IF1 PROFIdrive telegram selection

● p0978[0...24] List of drive objects

● p8815[0...1] Selects the functionality IF1/IF2

● p8839[0...1] PZD Interface hardware assignment

● p9601 SI enable, functions integrated in the drive (Control Unit)

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

Drive functions

Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2

selected in p8839[0] and p8839[1]. Then the setting of p8839[0] is valid – and the setting

of p8839[1] is treated just like 'inactive'.

assignment of the CAN module to IF1). An alarm is then issued.

corresponding interface is not automatically supplied from the Control Unit onboard

interface. Message A08550 is output instead.

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

10.1 Communication according to PROFIdrive

Communication

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