Time-Of-Day Synchronization Of Sinamics Drives - Siemens SIMATIC S7-1500 System Manual

11.9.2

Time-of-day synchronization of SINAMICS drives

In the factory setting, SINAMICS drives (SINAMICS Integrated, SINAMICS S120) use an
operating hours counter. The SINAMICS drive saves interrupts or warnings that occur on the
basis of the operating hours. This method does not allow comparable time stamps between
multiple drives and the CPU.
If you want comparable time stamps between multiple devices, you need to switch from
operating hours counting to UTC format and implement synchronization with the time-of-day
master (CPU).
UTC = Universal Time Coordinated; corresponds to GMT (Greenwich Mean Time)
You can then compare the events of all bus nodes that are synchronized with the CPU time.
SINAMICS drives offer the following time-of-day synchronization options:
Synchronization type
Simple synchronization
Synchronization with ping compensation in
non-isochronous communication
Synchronization with ping compensation in
isochronous communication
Synchronization with Network Time Protocol
(NTP) over a PROFINET connection
With the SIMATIC Drive Controller, time-of-day synchronization of the SINAMICS drives can
be implemented automatically by the system or through a user program.
SIMATIC Drive Controller
System Manual, 11/2019, A5E46600094-AA
11.9 Time synchronization
Accuracy Notes
Approx. 100 ms Only possible with suitable user
program
Approx. 10 ms
Approx. 1 ms Time-of-day synchronization is
available as a system function-
ality for the SIMATIC Drive
Controller .
Approx. 10 ms Only for converters on
PROFINET IO
(e.g. SINAMICS S120 CU320-2
PN or SINAMICS S120)
Cannot be used for SINAMICS
Integrated
Commissioning
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