1
Ethernet PG/OP channel
Device overview
Module
...
Slot
...
Type
...
PLC ...
2
CPU 314C-2 PN/DP
MPI/DP interface
2 X1
MPI/DP interface
PROFINET inter-
face
2 X2
PROFINET interface
...
...
...
CP 343-1
4
CP 343-1
...
...
...
13.4.1.2.1
Time-of-day synchronization
In the NTP mode (
N
etwork
T
ime
P
rotocol) 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 (
U
niversal
T
ime
C
oordinated) 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.
NTP method
VIPA System SLIO
Configuration with TIA Portal
TIA Portal - Hardware configuration - Ethernet PG/OP channel > Take IP address parameters in project
HB300 | CPU | 013-CCF0R00 | en | 19-30
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