OPC group support

Within the OPC protocol, data is accessed through collections of data items referred to as groups. Different data servers have varying levels of OPC support, including maximum numbers of groups, maximum numbers of items per group and performance issues, and so on. Because of this,

FactoryTalk Batch

support of OPC is flexible in order to achieve successful communication with as many different data servers as possible. To achieve this, the

FactoryTalk Batch

Server is flexible in its definition of Groups, and allows for different OPC grouping configurations to communicate with the data server(s).

The manner in which the

FactoryTalk Batch

Server organizes the area model tags into groups is defined by data server definition files (DSDF). These files are located in the Batch\Dataservers directory.

FactoryTalk Batch

comes with a predefined set of DSDF files. If you need to communicate with a data server for which there is no predefined DSDF file, contact Rockwell Automation Application Support.