Changing projects in process mode
11
11.1 Downloading changes online
Introduction
Once you have inserted new plant objects/pictures and tested their function on the ES, you
must update the relevant AS and OS servers to make the changes available to the operator.
If no changes have been made to the structure and it is possible to only compile OS changes,
the OS servers can remain in runtime mode during the download procedure. Runtime mode
must be stopped for a complete download of the OS.
The OS clients are updated automatically. The OS client must be explicitly downloaded only
where changes have been made to the OS client project (permissions in the User
Administrator, for example). An OS client can only be downloaded in full.
Note
Never make changes to the OS projects on the individual OS servers and OS client stations
directly, as you will not be able to use the "Download changes" function. In this event you must
execute a complete download.
All changes are made on the ES and are then downloaded to the various OS stations. The
redundancy settings for OS servers and the settings for the Web server are exceptions.
The background to this and further information on downloading changes can be found in the
section "Downloading Changes to a Project" in the "SIMATIC Process Control System PCS 7
Operator Station" (https://support.industry.siemens.com/cs/ww/en/view/109485970) manual.
There is an option for displaying the number of changes made via the "Details" button in the
dialog box for starting the OS download. Based on the number of changes the system suggests
whether downloading the changes is sufficient or whether a complete download needs to be
executed.
Requirement
You can only download changes online to a PCS 7 OS when runtime mode is activated on the
corresponding PC. Both stations must be in runtime mode for redundant servers.
In order to use the function for downloading changes online, the entire project must have been
compiled and downloaded without errors at least once. Exactly the same project data must
have been downloaded in full to redundant OS servers.
Procedure
The update procedure can be performed in stages or automatically, with the help of the
"Compile and Download Objects" dialog box.
Compendium Part A - Configuration Guidelines (V8.2)
Configuration Manual, 08/2016, A5E38166869-AA 287
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