9.3 Selective download
The "Selective Download" function can be used to download one or more modified CFCs or
SFCs to a CPU. You can use selective downloading to specifically select which configured
changes should be transferred to the target system and enabled. A parallel configuration of
multiple subsystems onto one target system is possible in this regard, for example. In such a
case, the changes can be compiled, downloaded, and tested for the individual subsystems.
Selecting the charts
A dialog box displays all charts that can be selectively downloaded. Select the charts that you
want to download in this dialog. Dependent charts are automatically selected from the system.
The charts that are not selected but affected by the changes are not transferred.
System charts with the prefix "@" are not displayed. These are transferred automatically if
they are affected by the changes.
Note
Dependent charts arise due to one of the following conditions:
● Change to an SFC type > all charts that contain an instance of this SFC type are dependent
and are also downloaded when the SFC type is downloaded.
● A dependent chart is a chart that contains at least one block which is in the same runtime
group as a block of the chart to be downloaded.
CAUTION
Make sure that no dangerous system states can arise before downloading
If you have changed multiple charts with cross-chart interconnections and not all charts later
transfer to the AS together through the "Selective Download" function, then damage could
occur due to inconsistent states.
Note
You can find further information on the subject of the “Selective Download” function in the
configuration manual "SIMATIC Process Control System PCS 7 Engineering System" (https://
support.industry.siemens.com/cs/ww/en/view/109485969) and in the function manual
"SIMATIC Process Control System PCS 7 CFC for SIMATIC S7" (https://
support.industry.siemens.com/cs/ww/en/view/109736727).
Chart-based insertion of blocks in runtime groups in OB 100
To use the "Selective Download" function, it is recommended to enable the "Chart-based
insertion" option in the "Properties Chart Folder" dialog.
Compiling and downloading
9.3 Selective download
Compendium Part A - Configuration Guidelines (V8.2)
192 Configuration Manual, 08/2016, A5E38166869-AA
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