PCo Query 
You use the PCo query in the SAP Manufacturing Integration and Intelligence (SAP MII) Workbench to query the following Plant Connectivity (PCo) agent types:
Tag
Table (database)
You use this function with plant connectivity (PCo). For more information about PCo, see the SAP Help Portal at http://help.sap.com
A PCo query is made up of the following template categories:
Tag Retrieve Query
For more information about this and the Tag Aggregate Query and Tag Store Query template categories, see Tag Retrieve, Aggregate, or Store Query.
Tag Aggregate Query
Tag Store Query
Parameters
For more information, see Query Parameters.
Security
For more information, see Template Security.