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Description PROFIBUS
®
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optek-Manual--1004-1010-02--ProfibusPA-US-2017-06-23
The PROFIBUS
®
PA allows cyclic as well as acyclic data transfer. Cyclic
services allow transfer of measuring results. They belong to the DP class 1
master and use protocol DP-V0.
Acyclic services serve for device parameterization, remote support maintenance
and diagnosis during operation. They belong to the DP class 2 master and use
protocol DP-V1.
Fig. 2
Cyclic and acyclic data transfer