[ISA-88]ANSI/ISA 88.01-1995 Batch Control Part 1: Models and terminology
[ISA-88 TR]ANSI/ISA TR 88.02-2008 Machine and Unit States Technical Report
[NE-107]NAMUR Recommendation, Self-Monitoring and Diagnosis of Field Devices.
[OPC 10000-100], OPC Unified Architecture – Part 100: Devices
http://www.opcfoundation.org/UA/UADevices
[OPC 10000-1], OPC Unified Architecture – Part 1: Overview and Concepts
http://www.opcfoundation.org/UA/Part1/
[OPC 10000-3], OPC Unified Architecture – Part 3: Address Space Model
http://www.opcfoundation.org/UA/Part3/
[OPC 10000-4], OPC Unified Architecture – Part 4: Services
http://www.opcfoundation.org/UA/Part4/
[OPC 10000-5], OPC Unified Architecture – Part 5: Information Model
http://www.opcfoundation.org/UA/Part5/
[OPC 10000-7], OPC Unified Architecture – Part 7: Profiles
http://www.opcfoundation.org/UA/Part7/
[OPC 10000-8], OPC Unified Architecture – Part 8: Data Access