Table of contents
Table of contents
Preface........................................................................................................................................... 2
1 Overview.................................................................................................................................... 11
1.2.1 OPC Foundation...................................................................................................................... 11
1.2.2 COM......................................................................................................................................... 12
1.2.3 DCOM...................................................................................................................................... 12
1.2.4 OPC Data Access (DA)........................................................................................................... 12
1.3.1 Connectivity..............................................................................................................................14
OPC connectivity................................................................................................................. 14
Device connectivity.............................................................................................................. 14
1.3.2 Interruption tolerance............................................................................................................... 15
1.3.4 User interface...........................................................................................................................15
1.3.5 Namespaces............................................................................................................................ 16
1.3.6 Basic version............................................................................................................................16
1.3.7 Online changes........................................................................................................................ 17
2.3 Channels......................................................................................................................................... 21
2.3.1 Add a New Channel................................................................................................................ 22
2.4 Element Structure........................................................................................................................... 24
2.5 Devices............................................................................................................................................24
2.5.1 Add a New Device...................................................................................................................25
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