ISA TR50.02, Part 9 – Fieldbus Standard for Use in Industrial Control Systems: User Layer Technical Report
Defines the details of the fieldbus process control user layer for continuous and batch process control applications, as well as typical sequential and interlock control applications in the process industries. Usable in other industries wherever similar applications exist. Establishes a data communications structure for implementing all types of fieldbus devices. Required to achieve interoperability and interchangeability of field devices.
