OPC Scanners read and write to data on OPC servers. You need to map the data on each OPC server to suitable OPC points within the ClearSCADA database, to enable ClearSCADA to handle the data in a similar way to other point data on the system (for instance, in order to monitor state changes, raise alarms, or execute controls).
The Simple OPC driver can support any of the point types that are listed below. You need to configure those point types that present the OPC node data in a suitable format within the ClearSCADA database.
Where a point type is specific to the Simple OPC Driver, a short description is given below. For descriptions of other point types, see the ClearSCADA Guide to Core Point Configuration.
For information on creating a point and displaying a Point Form, see Create and Configure a Point in the ClearSCADA Guide to Core Point Configuration.
For information on configuring fields on the OPC tab, see the rest of this section, which explains how to:
- Configure General Properties on the OPC Tab
- Specify the Source Value of a Point
- Retrieve Configuration Properties From an OPC Data Source.
For analog points, also see Configuring Analog Points.
For digital points, also see Configuring Digital Points.
For information on configuring fields on the <Point Type> tab, see the references below:
- Analog Point—see Defining Analog Point Details in the ClearSCADA Guide to Core Point Configuration.
- Digital Point—see Defining Digital Point Details in the ClearSCADA Guide to Core Point Configuration.
- String Point—a point for which the source is a text string, rather than a numeric value (see Configuring String Points).
- Time Point—a point for which the source is a time value (see Configuring Time Points).
For fields on other tabs, see Tabs on Point Forms in the ClearSCADA Guide to Simple Drivers.