Siemens sinamics dcp - 7.4.5 Acyclic communication; 7.4.5.1 General information about acyclic communication

Operation
7.4 Communication according to PROFIdrive
SINAMICS DCP
196 Operating Instructions, 09/2019, A5E34382853K
Overview of important parameters (see the SINAMICS DCP List Manual)
•
p0922
IF1 PROFIdrive PZD telegram selection
•
p0978[0...24]
List of drive objects
•
p8815[0...1]
IF1/IF2 PZD functionality selection
•
p8839[0...1]
PZD Interface hardware assignment
7.4.5 Acyclic communication
7.4.5.1 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 in online operation via
PROFIBUS/PROFINET, for example.
● PROFIdrive parameter channel with the following data sets:
– PROFIBUS: Data block 47 (0x002F)
The DPV1 services are available for master class 1 and class 2.
– PROFINET: Data block 47 and 0xB02F al global access, data set 0xB02E as local
access
Note
A detailed
description of acyclic communication is provided in the following reference:
•
References: PROFIdrive profile
You can obtain the current version from "PROFIBUS and PROFINET International
(PI) (https://www.profibus.com/download/profidrive-profile-drive-technology/)".
Addressing
:
•
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.