BS EN IEC 61804-3:2020

What is BS EN IEC 61804-3 — EDDL syntax and semantics about?  

BS EN IEC 61804 is a standard on devices and integration in enterprise systems that discusses function blocks (FB) for process control and electronic device description language (EDDL). 

BS EN IEC 61804-3 provides the best industry guidance on EDDL syntax and semantics to ensure the integration of devices in enterprise systems. It specifies the semantic and lexical structure in a syntax-independent manner.  

BS EN IEC 61804-3 is the third part of a multi-part series that specifies the electronic device description language (EDDL) technology, which enables the integration of real product details using the tools of the engineering life cycle. 

BS EN IEC 61804-3 specifies EDD interpretation for EDD applications and EDDs to support EDD interoperability. It also specifies the EDDL built-in library and provides the profiles of the various fieldbuses. 

BS EN IEC 61804-3 specifies EDDL as a generic language for describing the properties of automation system components. It is capable of describing: 

• Device parameters and their dependencies 
• Device functions, for example, simulation mode, calibration 
• Graphical representations, for example, menus 
• Interactions with control devices 
• Graphical representations enhanced user interface and graphing system 
• Persistent datastore 

Note: Tool implementation is outside the scope of BS EN IEC 61804-3. 

Who is IEC 61804-3 — EDDL syntax and semantics for? 

BS EN IEC 61804-3 on the EDDL syntax and semantics is useful for: 

• Sensors manufacturing companies 
• Hydraulic valves manufacturing industries 
• Human-machine interfaces developers 
• Electronic device manufacturing companies 

Why should you use BS EN IEC 61804-3— EDDL syntax and semantics?  

An electronic device description (EDD) contains all device parameter(s) of an automation system component. The technology used to describe an EDD is called electronic device description language (EDDL). The EDDL is a descriptive language based on an ASCII format with a clear separation between data and program.  

BS EN IEC 61804-3 allows the manufacturers to use the same description method for devices based on different technologies and platforms. The EDDL may also be used for the description of product properties in other domains such as industrial automation.  

BS EN IEC 61804-3 provides you with the creating electronic device description (EDD) for e.g. concrete devices, common usable profiles, or libraries. It lays out a set of scalable basic language elements, that enables you to handle simple, complex, or modular devices. 

BS EN IEC 61804-3 assists you to generate an interpretative code to support parameter handling, operation, and monitoring of automation system components such as remote I/Os, controllers, sensors, and programmable controllers. 

What’s changed since the last update?  

BS EN IEC 61804-3:2020 supersedes BS EN 61804‑3:2015, which is withdrawn. BS EN IEC 61804-3:2020 has made some technical changes compared to BS EN 61804‑3:2015. These include: 

• Communication profiles ISA100 and GPE were added 
• EDD Identification Information has a new LAYOUT_TYPE attribute 
• New construct SEMANTIC_MAP was added 
• CLASS attribute values LOCAL_A and LOCAL_B were added 
• Extended LIST functionality to support device managed lists