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clock is used for synchronization. External clocks are, for example, SICLOCK TM or a PC in the
network.
At programmed intervals, the 3RW5 PROFINET High Feature communication module sends time
queries to the configured NTP server. The server's responses are used to synchronize the clock
time of the capacitor-buffered clock in the 3RW5 soft starter. This ensures that a synchronized
clock time is available shortly after the supply voltage (control supply voltage) is switched on.
Parameter
Parameter
Description
Update interval
Time interval in seconds at which synchronization of the time of day with the NTP server
is performed. The parameter value "0" (factory setting) deactivates the time synchroni‐
zation.
• Factory setting: 0
• Setting values: 0, 10 s, 30 s, 1 min, 10 min, 30 min, 1 h, 24 h
Server IP address
IP address of the NTP server.
Note
UTC time
In the 3RW5 soft starter, the real-time clock runs in UTC (Universal Time Coordinated). This UTC
time is synchronized by means of the NTP procedure.
By means of the "Time offset" parameter, the time actually displayed is adjusted to the time zone.
Note the information on setting the clock time in the Equipment Manual of the 3RW5 soft starter.
Setting options
You can parameterize the time-of-day synchronization in the following ways:
• SIRIUS Soft Starter ES (TIA Portal) Premium / Professional via 3RW5 communication module
Brief overview: Window "Project Navigation" with current project under created Soft Starter >
"Commissioning" > Window "Working area" > "Soft Starter > Functions > Time"
• SIRIUS Soft Starter ES (TIA Portal) via local interface on the 3RW5 HMI High Feature
Brief overview: See SIRIUS Soft Starter ES (TIA Portal) Premium / Professional
via 3RW5 communication module
• 3RW5 HMI High Feature
Menu: "Parameter > Communication module > NTP time synchronization"
You will find more information on operating the 3RW5 HMI High Feature in the Equipment
Manual of the 3RW5 soft starter.
Functions
8.2 NTP (time synchronization)
SIRIUS 3RW5 PROFINET communication modules
Equipment Manual, 05/2021, A5E35631297002A/RS-AD/004
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