AC800M OPC file show difference file time in servers
As I know when make a download, the project files updated, the OPC server will copy some of these information files from engineer project folder to local folder.
Generally there are ctdXml, cdoXml, tdoXml, rrsXml and xsXml. In previous version, these file can be open directly like a xml document. And in recent version although these files still named with same extension, they are zipped.
As there is no information on these file, so we guess these files contains the cross reference information for MMS data to OPC data.
When these files has problems, we will have problem in OPC data. When customer report data problem, we found that 2 server have same configuration. However, the files are not exactly same.
Can anybody give me some idea on:
1. What exactly each type of the xml-like files' function?
2. What will happen if the file is not up-to-date? (Sometimes old files can cause fail in OPC Server connection, while sometimes the connection shows good by data has problem)
3. Why they are different between servers?
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