Technical data

Appendix
CPU 317T: Technology Functions
A5E00251798-03
A-17
A.2.4 Why do some system DBs have a different online / offline time
stamp?
Query:
Some of the SDBs in the project have a different time stamp than the SDBs in the
technology CPU.
Does this time stamp difference represent a problem?
Answer:
When you download the technology in S7T Config to the Technology CPU with
Target system> Download > Technology to target system, the downloaded
SDBs of the type 3311 are assigned the time stamp of the integrate real-time clock
of the CPU. A different time stamp as such does not present a problem at the
moment.
The SDBs of the type 3311 are assigned the time stamp of the integrate real-time
clock of the CPU at the time of their download. Hence, it may well be the online /
offline SDBs have a different time stamp, but are not different by contents. If the
online view of S7T Config marks all drives "green", you can presume that your
technology configuration is consistent.
Note
When "Automatic summertime/wintertime" is set in Windows, the time stamp
of the
system data shows an additional hour in the summertime.
A.2.5 Why does the number of system DBs differ in the online and
offline view?
Query:
The online view of the Technology CPU shows more system DBs of the type 3311
than the project view. Does this difference represent a problem?
Answer:
When you download the technology in S7T Config to the CPU, the system
generates additional SDBs of the type 3311 and assigns these a different time
stamp.
You can use S7T Config to compare the online and offline data. If all objects
appear in green color, these are identical.
When you download system data with STEP 7 or HW Config, the online / offline
comparison does not return any differences.