Synchronizing The System Time In The Network - Hirschmann RS20 User Manual

Synchronizing the System Time in the
Network
7 Synchronizing the System
Time in the Network
The actual meaning of the term "real time" depends on the time requirements
of the application.
The device provides two options with different levels of accuracy for
synchronizing the time in your network.
If you only require an accuracy in the order of milliseconds, the Simple
Network Time Protocol (SNTP) provides a low-cost solution. The accuracy
depends on the signal runtime.
IEEE 1588 with the Precision Time Protocol (PTP) achieves accuracies in
the order of fractions of microseconds. This superior method is suitable for
process control, for example.
Examples of application areas include:
log entries
time stamping of production data
production control, etc.
Select the method (SNMP or PTP) that best suits your requirements. You can
also use both methods simultaneously if you consider that they interact.
Basic Configuration
Release 6.0 07/2010
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