Special functions of the CPU 410-5H
9.9 Time synchronization
CPU 410-5H Process Automation/CPU 410 SMART
System Manual, 10/2013, A5E32631667-AA
133
Select a synchronization interval of 10 s if the CPU is the time master on the S7-400
backplane bus.
The time master sends its first message frame via SFC 0 "SET_CLK" or via a programming
device function once the time has been set for the first time. If another interface was
configured as a time slave or as an NTP client, the time starts once the first time message
frame has been received.
Information about time synchronization for PCS 7 is available in the manual SIMATIC
Process Control System PCS 7, time synchronization (V8.0)
(http://support.automation.siemens.com/WW/view/en/61189664).
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