Overview Of Data Exchange With Pcs 7 - Siemens SIMATIC PCS 7 Operating Manual

Overview of data exchange with PCS 7

Bidirectional data exchange
During data exchange between PAA and PCS 7, data can be transferred and synchronized
bidirectionally.
For transfer and synchronization, there are the following options:
● Direct data exchange: if PAA and PCS 7 are installed on the same PC.
As such, the types and instances of equiment modules or control modules from PAA and
PCS 7 can be read out and contrasted via the import service of the Automation Interface (AI).
● Indirect data exchange via an XML file: if PAA and PCS 7 are installed on different PCs.
For indirect data exchange, first export the data to an XML file via the plugin "Import / Export
PCS 7" from PAA or the SIMATIC Manager.
Then import the XML file that was generated by PAA or PCS 7 and proceed in the reverse
order in SIMATIC Manager or PAA. Synchronization is also performed during an import.
Then the alterations to the target can be deleted or applied.
Note
Security when performing data exchange via XML format
● Access to the transfer medium/transfer directory:
● Digitally signed XML files:
Note
Note on file-based data exchange
When using file-based data exchange, ensure that the sources for an import are trusted.
Check that the files and data carriers are free from viruses and apply the usual security
measures. To protect your data, make sure that the data carriers or folders are accessible
to authorized persons only.
Plant Automation Accelerator 3.0
Operating Manual, 04/2019, A5E46351208-AA
When using the indirect data exchange via XML format between PAA and SIMATIC PCS
7, ensure that the transfer medium or the transfer directory of the XML files is only
accessible to authorized persons.
To describe the origin and integrity of the XML data, you can sign the XML file digitally
during the data exchange in XML format. This corresponds to the requirements of the
PCS 7 security concept.
By checking the digital signature, you ensure that the XML file on the transfer medium
has not been modified.
The digital signature on the XML file is deactivated by default. Activating the digital
signature is recommended.
See also chapter Exporting digitally signed XML files: (Page 166).
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