Eaton DS7 - Cyclic Data Via PROFIBUS-DP; Acyclic Data

8 SmartWire-DT
8.9 Programming
DS7 Soft starter 09/16 MN03901001Z-EN www.eaton.com 185
8.9.4 Cyclic data via PROFIBUS-DP
8.9.5 acyclic data
For normal soft starter operation the acyclic data is not required. This section
therefore addresses programming experts.
8.9.5.1 Introduction
Acylic communications are used to read and write parameters and
diagnostics from and to the DS7-SWD soft starter and, optionally, the PKE
motor-protective circuit-breaker; they can take place at the same time as
cyclic data is being transferred. This means that acyclic communications are
independent from the selected profile.
In this case, the SWD coordinator (client) communicates acyclically with the
DS7-SWD soft starter (server) and, optionally, with the PKE motor-protective
circuit-breaker. Communications are always initiated by the client.
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For information on the subject of the “transfer of cyclic data”,
consult manual MN05013002Z-EN, “SmartWire-DT Gateways.”
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In order for acyclic data to be transmitted and diagnostic
activities to be performed, the higher-level PLC must feature
acyclic services.
The programmable EASY802-DC-SWD and EASY806-DC-SWD
switchgear and controlgear do not feature acyclic services!