Siemens SIMATIC BATCH Operating Manual page 482

BATCH Control Center
9.9 Report creation and archiving of batch data
Time-of-day synchronization
If an incorrect time of day is shown in batch reports or in tooltips in the control recipe, check
the settings for time-of-day synchronization. You can set the time of the CPU of your AS to
UTC time in the "Set Time of Day" dialog. You can open this dialog in the SIMATIC Manager.
Select the CPU in your AS and then select the shortcut menu command PLC > Set Time of
Day. To change the module time, clear the "Take from PG/PC" check box.
Note
The batch management collects all messages from the start of the batch until the message
"Batch closed". The start and close messages include the time of day of the PC on which the
batch data management is running. To ensure that all messages during this time window are
acquired, the time of day of all network devices must be synchronized. UTC time is always set
as the module time on the AS.
The time zone CET/MEZ (Central European Time/Mitteleuropäische Zeit) is ahead of the
"world time", meaning UTC, by one hour. This means: Standard difference to UTC = +1.
Daylight saving time is UTC+2 and standard time UTC+1.
Time-of-day synchronization: Manual
482
PCS 7 - PC Configuration
Operating Manual, 02/2016, A5E35958174-AA
SIMATIC BATCH V8.2