Time Synchronization And Time Stamping; Overview - Time Synchronization And Time Stamping With Et 200Sp Ha; Plant-Wide Time Synchronization And Time Stamping With A Precision Of 1 Ms - Siemens SIMATIC ET 200SP HA System Manual

Plant planning

4.9 Time synchronization and time stamping

4.9 Time synchronization and time stamping
4.9.1

Overview - Time synchronization and time stamping with ET 200SP HA

Introduction
The following sections show the possibilities for time synchronization of distributed I/O based
on SIMATIC ET 200SP HA.
The time synchronization is only relevant when using time stamping.
Time synchronization options
Table 4-11
No. Configuration
1
2
3
Additional information
● Function manual
● If PCS 7 is used:
Function manual
with ET 200SP HA
4.9.2

Plant-wide time synchronization and time stamping with a precision of 1 ms

Time synchronization of events
When a plant has multiple automation systems, the time stamps of events should be
comparable.
The comparison of time stamps of events is based on the time synchronization of the
associated automation systems.
52
Explanations of the configurations with time stamping by the distributed I/O with ET 200SP
HA
Quick reference guide
Split plant bus Division of the plant bus is mandatory
when using time stamping with an ac‐
curacy of 1 ms.
Configurations Connection via redundant media
with a single CPU (2 PROFINET IO systems) using re‐
dundant interface modules
Configurations Using redundant I/O modules in an IO
with redundant device
CPU
SIMATIC; ET 200SP HA; ET 200SP HA - Time Stamping
SIMATIC; Process Control System PCS 7; High-precision Time Stamping
Setup example
You can find information on this in
the section "Plant-wide time syn‐
chronization and time stamping
with a precision of 1 ms (Page 52)"
You can find information on this in
the section "Time synchronization
and time stamping with a single
CPU (Page 55)"
You can find information on this in
the section "Time synchronization
and time stamping with redundant
CPU (Page 56)"
ET 200SP HA Distributed I/O system
System Manual, 08/2019, A5E39261167-AD