Associated with: OPC XML-DA servers, scanners, and points
The Source attribute is common to many Status displays. The attribute indicates the location at which the item resides. The information shown varies, depending on the item.
The Source attribute displays the value Undefined if the item’s configuration is incomplete, in so far as the device with which the item is associated has not yet been specified.
The Source attribute is common to many Status Displays. The attribute indicates the location at which the item resides. The information shown varies, depending on the item.
For an OPC XML-DA server, or an OPC XML-DA scanner, information is displayed in this format:
<OPC Server URL>
Example:
http://XMLDASERVER/xmlda/
For an OPC XML-DA point, information is displayed in this format:
<OPC Server URL>:<Tag Name>
Example:
http://XMLDASERVER/xmlda/:Points.Alarm
(for a point with the Tag Name ‘Points.Alarm’, on the OPC server that has the URL http://XMLDASERVER/xmlda/)