Table of Contents
Advertisement
VIPA System MICRO
11.3.1.2.1
Time-of-day synchronization
NTP method
HB400 | CPU | M13-CCF0000 | en | 18-50
TIA Portal - Hardware configuration - Ethernet PG/OP channel > Take IP address parameters in project
CP 343-1
...
In the NTP mode (Network Time Protocol) the module sends as client time-of-day queries
at regular intervals to all configured NTP servers within the sub net. You can define up to
4 NTP server. Based on the response from the servers, the most reliable and most exact
time-of-day is determined. Here the time with the lowest stratum is used. Stratum 0 is the
time standard (atomic clock). Stratum 1 are directly linked to this NTP server. Using the
NTP method, clocks can be synchronized over subnet boundaries. The configuration of
the NTP servers is carried out in the Siemens SIMATIC Manager via the CP, which is
already configured.
1.
In the 'Device configuration' , click the CP 343-1EX30.
2.
Click on 'PROFINET interface' in the 'Device overview' .
3.
In the 'Properties' , select 'Time-of-day synchronization' .
4.
Enable the NTP method by enabling 'Activate time-of-day synchronization' and
selecting 'NTP' at 'Method' .
5.
Add the appropriate NTP servers by specifying their IP addresses.
6.
Select your 'Time zone' . In the NTP method, UTC (Universal Time Coordinated) is
generally transmitted; this corresponds to GMT (Greenwich Mean Time). By config-
uring the local time zone, you can set a time offset to UTC.
7.
Set the 'Update interval' you want. Within this interval, the time of the module is
synchronized once.
8.
Save and transfer your project to the CPU.
ð After transmission, the NTP time is requested by each configured time server
and the best response for the time synchronization is used.
Please note that although the time zone is evaluated, an automatic
changeover from winter to summer time is not supported. Industrial sys-
tems with time-of-day synchronization should always be set in accord-
ance to the winter time.
With the FC 61 you can determine the local time in the CPU. More infor-
mation about the usage of this block may be found in the manual
"SPEED7 Operation List" from VIPA.
4
...
Configuration with TIA Portal
CP 343-1
...
267
Advertisement
Table of Contents
