Table of contents
6
OpenPCS 7 interface..................................................................................................................................45
6.1
Access options............................................................................................................................45
6.2
Data transmission........................................................................................................................45
6.3
OPC Data Access (OPC DA)......................................................................................................46
6.3.1
Overview......................................................................................................................................46
6.3.2
6.3.3
6.4
6.4.1
Overview......................................................................................................................................48
6.4.2
6.4.3
6.4.4
6.4.5
6.4.6
6.4.7
6.4.8
6.4.9
6.5
6.5.1
Overview......................................................................................................................................55
6.5.2
6.5.3
6.5.4
6.5.5
6.5.6
6.5.7
Acknowledgment concept............................................................................................................61
6.5.8
6.5.9
6.5.9.1
6.5.9.2
6.5.9.3
6.5.9.4
6.5.10
6.6
6.6.1
Overview......................................................................................................................................74
6.6.2
6.6.3
Reading archived messages.......................................................................................................75
6.6.4
6.6.5
6.6.6
6.7
OLE DB.......................................................................................................................................80
6.7.1
Overview......................................................................................................................................80
6.7.2
Basics of OLE DB........................................................................................................................81
6.7.3
6.7.4
6.7.5
Querying archive data.................................................................................................................85
6.7.5.1
4
Function Manual, 05/2012, A5E02780178-02
OpenPCS 7