Siemens SINAMICS S150 - PROFINET IO with IRT - Overview

Operation
6.8 PROFINET IO
Drive converter cabinet units
Operating Instructions, 07/07, A5E00288214A
255
Note
Drive objects without PZD do not transfer process data and are used, for example, to
transfer parameters.
6.8.4.4 PROFINET IO with IRT - Overview
Overview
PROFINET IO with IRT is characterized by separate time domains for IRT, RT, and TCP/IP
communication. This is safeguarded by high-precision hardware-based cycle monitoring.
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Figure 6-45 IRT Communication - Overview
PROFINET IO with IRT is available in two versions:
● IRTflex (flexible) with fixed bandwidth reservation
● IRTtop (top performance) with planned IRT communication