Apparatus and methods to access information associated with a process control system

摘要

Example apparatus and methods to access information associated with a process control system are disclosed A disclosed example method involves receiving a first user-defined parameter name to reference a first datum value in a first data source. The first one of a plurality of data source interfaces is enabled to access the first datum value in the first data source The example method also involves enabling refeiencing the first datum value in the first data source based on the first user-defined parameter name In addition, data source interface software is then aencialed to access the first datum value in the first data source in response to receiving a first data access request including the first user-defined parameter name