Snapshot Of The Monitor Values - Siemens SIMATIC ET 200SP System Manual

6.2.4.5

Snapshot of the monitor values

Backing up actual values of all data blocks
With the option "Snapshot of the monitor values" you overwrite the start values of tags in the
offline version of a data block with actual values from the CPU. In this way, you can restore
the backed up status of the data blocks at a later date after changing the actual values.
To apply the actual values, you first generate a snapshot of tag values from the online
program. You can then apply them to the offline program.
Note
Note that the values from the snapshot are always copied. STEP 7 does not hereby check
whether all values originate from the same cycle.
The following options exist for the application of actual values from the snapshot as start
values:
● Apply the values of an opened data block
You can apply all values or only the values of the tags marked as a "Set value" as start
values in an open data block.
● Apply the values of multiple blocks in the project tree
In the project tree, you can apply all set values or all retentive values as start values.
The following requirements must be met in order to be able to back up the actual values of
data blocks:
● The CPU is connected to the programming device/PC via the PROFINET interface.
Interfaces of CMs/CPs are also supported.
● The CPU is online.
● As least one data block has been loaded to the CPU.
● The data blocks are not write-protected.
Distributed I/O system
System Manual, 12/2015, A5E03576849-AF
Configuring
6.2 Configuring the CPU
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