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BS ISO 20794-2:2020

$189.07

Road vehicles. Clock extension peripheral interface (CXPI) – Application layer

Published By Publication Date Number of Pages
BSI 2020 48
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This document describes the application layer protocol including the application measurement and control data management, message transfer and fault management.

The application and application layer contain the following descriptions:

  • message structure;

  • communication method;

  • network management (optional);

  • measurement and control data; and

  • error handling.

This document also specifies:

  • the service interface; and

  • the service interface parameters.

PDF Catalog

PDF Pages PDF Title
2 undefined
7 Foreword
8 Introduction
11 1 Scope
2 Normative references
3 Terms and definitions
13 4 Symbols and abbreviated terms
4.1 Symbols
4.2 Abbreviated terms
14 5 Conventions
6 Introduction to application and application layer
6.1 Application properties
6.2 Application layer properties
6.3 Message transmission
6.4 Communication methods
15 6.5 Message types
6.6 Error handling
7 Service interface parameters (SIP)
7.1 SIP — General
7.2 SIP — Data type definitions
16 7.3 SIP — Mtype, message type
7.4 SIP — ReqId, request identifier
7.5 SIP — ReqTypeId, request type identifier
7.6 SIP — PDU, protocol data unit
7.7 SIP — Length, length of PDU
7.8 SIP — ev_wakeup_ind, event wake-up indication (optional)
17 7.9 SIP — cmd_wakeup_req, command wake-up request
7.10 SIP — NMInfo, network management information
18 7.11 SIP — SCT, sequence count
7.12 SIP — Result, result
8 SI — Service interface (SI) definition to application and lower OSI layers
8.1 SI — A_Data.req and A_Data.ind service interface
19 8.2 SI — A_Data.req and A_Data.ind service interface parameter mapping
9 Application (APP)
9.1 APP — Message exchange
9.2 APP — Communication methods
9.2.1 APP — General
20 9.2.2 APP — Event-triggered method
9.2.3 APP — Polling method
21 9.3 APP — Network management (NM)
9.3.1 APP — General
22 9.3.2 APP — Normal, standby, and sleep states
23 9.3.3 APP — Normal state
24 9.3.4 APP — Sleep state (optional)
9.3.5 APP — Standby state (optional)
9.3.6 APP — Wake-up/sleep function (optional)
34 9.3.7 APP — Wake-up/sleep sequence parameter
9.4 APP — Multi clock master sequence processing
35 9.5 APP — Measurement and/or control data
9.5.1 APP — Publisher and subscriber data
36 9.5.2 APP — Measurement and/or control data management
9.5.3 APP — Measurement and/or control data types
9.5.4 APP — Measurement and/or control data consistency
37 9.5.5 APP — Assignment of ReqId
9.5.6 APP — Priority of ReqId
38 9.6 APP — Error handling
9.6.1 APP — General
9.6.2 APP — CXPI network error
39 9.6.3 APP — Network management information
40 9.6.4 APP — SCT, sequence count (optional)
41 9.6.5 APP — Sequence count (SCT) error (optional)
9.6.6 APP — Transmission prohibition
42 9.6.7 APP — Retransmission
9.6.8 APP — Error notification on CXPI network (optional)
43 10 Application layer (AL)
10.1 AL — Message exchange
44 10.2 AL — Message structure
45 10.3 AL — Request protected type identifier field
10.4 AL — Request protected identifier field
10.4.1 AL — General
10.4.2 AL — Judgment of received message
10.5 AL — Response field (A_PDU)
10.5.1 AL — General
10.5.2 AL — A_PDU
46 10.5.3 AL — Wake-up indication and request
10.6 AL — Error detection
47 Bibliography
BS ISO 20794-2:2020
$189.07