Exchanging Data with Other Applications

You can transfer data between Citect SCADA and other software for storage, analysis, and post processing, or to control and tune your Citect SCADA system.

Citect SCADA uses the following methods to exchange data:

• dynamic data exchange (DDE), where Citect SCADA can act as a:
• DDE server providing tag values to requesting clients
• DDE client to request data from other applications.
• open database connectivity (ODBCOpen Database Connectivity (ODBC) allows applications to access data in database management systems using structured query language (SQL) to access data.), where Citect SCADA functions as an ODBC server, allowing other applications to read Citect SCADA variables directly.
• By using a common external database, where Citect SCADA and other applications use the same database to store and share information.

Citect SCADA also supports importing and linking variable tag data from external databases (see Linking Tags to an External Data Source).

Published June 2018