10.4 Index of Requirements (informative)

Subclause 10.4 gives an informative overview of all the requirements (safety and non-safety) which are described in this document. A summary requirement description and the corresponding Clause where the requirement is defined are given. Note that to fully understand a requirement and its context, it is necessary to consult its original definition. This Subclause 10.4 serves as a tool for quick navigation and as a checklist for an overview over all requirements.

For the conventions used for numbering requirements, see 3.3.2.

Table 41 – Index of Requirements (informative)

Requirement Number

Requirement Summary

Clause/Subclause

RQ4.1

Implement in devices designed according to IEC 61508 with appropriate SIL

4.2 Implementation aspects

RQ5.1

Implement in safety devices only

5.2 Safety functional requirements

RQ5.2

Implement safety measures (MNR, timeout with receipt, IDs, data integrity check)

5.3 Safety measures

RQ5.3

Process and monitor safety measures in the SCL

5.3 Safety measures

RQ5.4

Start CRC calculation with value “1”

5.5 Requirements for CRC calculation

RQ5.5

Use CRC result “1” instead of “0”

5.5 Requirements for CRC calculation

RQ5.6

Ignore all-zero SPDUs

5.5 Requirements for CRC calculation

RQ6.1

Singleton SafetyACSet folder

6.2.2.1 SafetyACSet Object

RQ6.2

Objects for SafetyProviders and SafetyConsumers

6.2.2.1 SafetyACSet Object

RQ6.3a

Usage of Call Service for Client/Server

6.2.2.1 SafetyACSet Object

RQ6.3b

Usage of SafetyPDUs for PubSub

6.2.2.1 SafetyACSet Object

RQ6.4

Provide SPDUs for diagnostics in method ReadSafetyDiagnostics

6.2.2.1 SafetyACSet Object

RQ6.5

Restrictions on data types

6.2.2.2 Safety ObjectType definitions

RQ6.6

Non-abstract data types for out data

6.2.2.2 Safety ObjectType definitions

RQ6.7

Definition of concrete data types for ResponseSPDU

6.2.3.4 ResponseSPDUDataType

RQ6.8

Usage of NonSafetyDataPlaceHolder

6.2.3.4 ResponseSPDUDataType

RQ6.9

Restriction to scalar types

6.2.5 DataTypes and length of SafetyData

RQ6.10

List supported data types in user manual

6.2.5 DataTypes and length of SafetyData

RQ6.11

Values for Boolean data type

6.2.5 DataTypes and length of SafetyData

RQ6.12

Implementation of SafetyProvider SAPI

6.3.3.2 SAPI of SafetyProvider

RQ6.13a

Implementation of SafetyProvider SPI

6.3.3.3 SPI of SafetyProvider

RQ6.13b

Parameters of SafetyProvider SPI

6.3.3.3 SPI of SafetyProvider

RQ6.14

Implementation of SafetyConsumer SAPI

6.3.4.2 SAPI of SafetyConsumer

RQ6.15a

Implementation of SafetyConsumer SPI

6.3.4.4 SPI of the SafetyConsumer

RQ6.15b

Parameters of SafetyConsumer SPI

6.3.4.4 SPI of the SafetyConsumer

RQ6.16

Values for qualifier bits

6.3.6 Principle for “Application variables with qualifier”

RQ6.17

SafetyConsumer diagnostic message texts

6.4.2 Diagnostics messages of the SafetyConsumer

RQ7.1

RequestSPDU flags

7.2.1.4 RequestSPDU: Flags

RQ7.2

Contents and structure of SafetyData in ResponseSPDU

7.2.1.5 ResponseSPDU: SafetyData

RQ7.3

Usage of ResponseSPDU flags

7.2.1.6 ResponseSPDU: Flags

RQ7.4

Zero out reserved flags

7.2.1.6 ResponseSPDU: Flags

RQ7.5

Copy SafetyConsumerID into ResponseSPDU

7.2.1.8 ResponseSPDU: SafetyConsumerID

RQ7.6

Copy MonitoringNumber into ResponseSPDU

7.2.1.9 ResponseSPDU: MonitoringNumber

RQ7.7

Usage of CRC checksum

7.2.1.10 ResponseSPDU: CRC

RQ7.8

Usage of NonSafetyData

7.2.1.11 ResponseSPDU: NonSafetyData

RQ7.9

Indication of NonSafetyData

7.2.1.11 ResponseSPDU: NonSafetyData

RQ7.10

Answer repeated RequestSPDUs in Client/Server communication

7.2.2.2 SafetyProvider/-Consumer Sequence diagram

RQ7.11

Document behavior chosen in RQ7.10 in safety manual

7.2.2.2 SafetyProvider/-Consumer Sequence diagram

RQ7.12

Monitor ConsumerCycleTime in safety-related way

7.2.2.2 SafetyProvider/-Consumer Sequence diagram

RQ7.13

Implement SafetyProvider behavior

7.2.2.3 SafetyProvider state diagram

RQ7.14

Implement SafetyConsumer behavior

7.2.2.4 SafetyConsumer state diagram

RQ7.15

Rules for building the ResponseSPDU

7.2.3.1 Build ResponseSPDU

RQ7.16

Rules for calculating SPDU_ID fields

7.2.3.2 Calculation of the SPDU_ID_1, SPDU_ID_2, SPDU_ID_3

RQ7.17

Values to indicate SafetyProviderLevel_ID

7.2.3.3 Coding of the SafetyProviderLevel_ID

RQ7.18

Avoid accidental use of higher SIL indicator

7.2.3.3 Coding of the SafetyProviderLevel_ID

RQ7.19

Calculation of SafetyStructureSignature

7.2.3.4 Signature over the Safety Data Structure (SafetyStructureSignature)

RQ7.20

No evaluation of SafetyStructureSignature

7.2.3.4 Signature over the Safety Data Structure (SafetyStructureSignature)

RQ7.21

Value of SafetyStructureSignatureVersion

7.2.3.4 Signature over the Safety Data Structure (SafetyStructureSignature)

RQ7.22

Generator polynomial for CRC signature

7.2.3.5 Calculation of a CRC checksum

RQ7.23

Endianess encoding of SafetyData

7.2.3.5 Calculation of a CRC checksum

RQ7.24

CRC calculation sequence

7.2.3.5 Calculation of a CRC checksum

RQ7.25

Calculate CRC in SafetyConsumer from ResponseSPDU values

7.2.3.5 Calculation of a CRC checksum

RQ8.1

Provision of SafetyProviderDelay

8.2 Safety function response time part of communication

RQ9.1

Storage of SafetyBaseID and SafetyProviderID

9.1.1 SafetyBaseID and SafetyProviderID

RQ9.2a

(Option 1) Use stored MNR after restart

9.2 Initialization of the MNR in the SafetyConsumer

RQ9.2b

(Option 2) Use random MNR after restart

9.2 Initialization of the MNR in the SafetyConsumer

RQ9.3

Provision of and information in safety manual

9.5 Safety manual

RQ9.4

Indication of SAPI.OperatorAckRequested

9.6 Indicators and displays

RQ9.5

Properties of LED indication of SAPI.OperatorAckRequested

9.6 Indicators and displays

RQ12.1

Namespaces

12.2 Handling of OPC UA Namespaces