Time Sequence Of Synchronization; Time Sequence Of Synchronization On Profinet Io And Profibus Dp - Siemens SIMATIC S7-1500 Function Manual

Time sequence of synchronization

Introduction
The basic time sequence of all components involved in the synchronization is explained in
the following sections: The synchronization is differentiated according to distributed
configuration and central configuration in an S7-1500. You can combine isochronous I/O with
non-isochronous I/O in the configuration.
4.1 Time sequence of synchronization on PROFINET IO and
PROFIBUS DP
Introduction
You can operate I/O modules in distributed I/O systems isochronously on a CPU:
● On PROFINET IO, e.g. in distributed I/O systems ET 200SP, ET 200MP
● On PROFIBUS DP, e.g. in distributed I/O systems ET 200S, ET 200M.
Like the I/O modules, the interface modules of the I/O systems must support isochronous
mode.
Isochronous mode
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