Siemens LOGO! CMR2040 Operating Instructions Manual page 74

Configuration (WBM)
5.6 System
● Enable time-of-day synchronization
With this option you enable time-of-day synchronization of the CMR.
● Time-of-day synchronization method
Select a time-of-day synchronization method.
● Last time-of-day synchronization (dd:hh:mm:ss) ago
Shows when the last time-of-day synchronization was performed.
● Now synchronize
If you have selected "NTP" or "GPS" as the time-of-day synchronization method if you
have an existing mobile wireless connection of thee CMR, you can synchronize the time
of day spontaneously.
● Accept time of day from non-synchronized NTP servers
If the option is enabled, the CMR also accepts the time-of-day from non-synchronized
NTP servers with stratum 16.
● IP address or DNS of the NTP server
In this box enter the FQDN (URL format) or the IP address of the SNTP server.
● Update interval
Using the drop-down list, you specify the intervals at which the time is synchronized.
With the "Via mobile wireless" method you can specify the update interval because the
time-of-day is sent actively by the provider.
● Forward time of day to LOGO! BM
With this option you enable forwarding of the time of day of the CMR to LOGO! BM. The
time of day is forwarded to the BM at the intervals you have set.
If the time of day is synchronized via a mobile wireless network, the time of day is
forwarded as soon as a new time of day is received by the CMR. The time of day is also
transferred when establishing the connection to the BM.
Note
Avoid having different settings on the BM and CMR
If you have different settings on the BM and CMR and want to avoid time deviations
resulting from this, you need to enable time-of-day forwarding to the BM:
Enable the automatic daylight saving time switchover in the BM This ensures that blocks
such as the astronomic clock work correctly.
Note
Second-precise time-of-day synchronization with LOGO! V8.1
When synchronizing the time of day of LOGO! BM by the CMR time-of-day
synchronization to the second is possible with the following firmware versions:
• LOGO! BM: As of V8.1
• LOGO! CMR: As of V2.0
With older firmware versions there may be small deviations between the CMR and BM.
74
LOGO! CMR2020,
Operating Instructions, 10/2016, C79000-G8976-C356-03
LOGO! CMR2040