This document is a part of a specification series. Each part specifies the contents of a Submodel template for the Asset Administration Shell (AAS). The AAS is described in [1] [2], [3] and [6]. First exemplary Submodel contents were described in [4], while the actual format of this document was derived by the "Administration Shell in Practice" [5]. The format aims to be very concise, giving only minimal necessary information for applying a Submodel template, while leaving deeper descriptions and specification of concepts, structures and mapping to the respective documents [1] to [6].

The target group of the specification are developers and editors of technical documentation and manufacturer information, which are describing assets in smart manufacturing by means of the Asset Administration Shell (AAS) and therefore need to create a Submodel instance with a hierarchy of SubmodelElements. This document especially details on the question, which Submodel Elements with which semantic identification shall be used for this purpose.

Engineering tools used for the design of safety control system of machinery and similar control systems need functional safety and reliability data.

The purpose of this Submodel is to define the structure and relevant reliability properties for devices suitable for customer demands.

The intended benefits of this Submodel are to:

IEC 60947-1:2020, Low-voltage switchgear and controlgear - Part 1: General rules

IEC 61360-1:2017, Standard data element types with associated classification scheme – Part 1: Definitions – Principles and methods

IEC 62683-1 DB, Low-voltage switchgear and controlgear - Product data and properties for information exchange - Part 1: Catalogue data

IEC 61987 DB, Industrial-process measurement and control - Data structures and elements in process equipment catalogues

IEC 62061:2021, Safety of machinery - Functional safety of safety-related control systems

ISO 13849-1:2015, Safety of machinery – Safety-related parts of control systems – Part 1: General principles for design

VDMA 66413:2012, Functional Safety - Universal data format for safety-related values of components or parts of control system

Application of the relevant standards (1.3) requires the exchange of relevant data between all concerned: machine manufacturers, device manufacturers and calculation tools.

Device manufacturers create characteristic value libraries for their devices in “universal data format". The device manufacturer is the person who manufactures devices and/or components and makes them available to the machine manufacturer or user in the spirit of the free movement of goods. As a result, the creator of a characteristic value library can and indeed may only be the device manufacturer.

Calculation tool (suppliers) provide a mechanism for importing characteristic value libraries in database format. The characteristic values are prepared for display and selection within the tool.

Machine manufacturers use the characteristic values library (file) provided by the device manufacturer to read and update the characteristic values (device data) within the calculation tool.

Figure 1 shows the UML-diagram defining the relevant properties which need to be set.

The used tables in this document try to outline information as concise as possible.

They do not convey all information on Submodels and SubmodelElements.

For this purpose, the definitive definitions are given by a separate file in form of an AASX file of the Submodel template and its elements.

For clarity and brevity, a set of rules is used for the tables for describing Submodels and SubmodelElements.