User's Manual

Query
Use the query feature to read tags and get their status information. The AR400 replies with one of the
following tag status indications:
• The tag is not known to the system. (The tag was never seen or imported.)
• The tag is not visible to the system. (The tag is known to the system, but is currently not visible to any read
point.)
• The tag is visible at one or more read points. (A list of read points where the tag can be seen
displays.)
The tag ID and the type of the tag is required to query a tag. To obtain the tag ID and type of all tags
the AR400 is reading:
1. Enable polling at the AR400 and configure read point classes as polled classes.
2. Open a new browser window and enter the following URL:
http://[Reader IP Address] /cgi-bin/dataProxy?oper=queryTags
XML containing the tag ID and type of all tags being read
appears.
Figure 3-10. Query Tags XML Window
3. Note the tag ID and type of the tag to query.