EN IEC 61784-3-19:2024

SLOVENSKI STANDARD
oSIST prEN IEC 61784-3-19:2024
01-januar-2024
Industrijska komunikacijska omrežja - Profili - 3-19. del: Funkcijska varnost
procesnih vodil - Dodatne specifikacije za CPF 19
Industrial communication networks - Profiles - Part 3-19: Functional safety fieldbuses -
Additional specifications for CPF 19
Réseaux de communication industriels - Profils - Partie 3-19: Bus de terrain de sécurité
fonctionnelle - Spécifications supplémentaires pour CPF 19
Ta slovenski standard je istoveten z: prEN IEC 61784-3-19:2023
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.100.05 Večslojne uporabniške Multilayer applications
rešitve
oSIST prEN IEC 61784-3-19:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN IEC 61784-3-19:2024

oSIST prEN IEC 61784-3-19:2024
65C/1276/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 61784-3-19 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2023-12-01 2024-02-23
SUPERSEDES DOCUMENTS:
65C/1258/CD, 65C/1267A/CC
IEC SC 65C : INDUSTRIAL NETWORKS
SECRETARIAT: SECRETARY:
France Ms Valérie DEMASSIEUX
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:

SC 22G,TC 44,TC 57,SC 65A,TC 66
Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.
FUNCTIONS CONCERNED:
EMC ENVIRONMENT QUALITY ASSURANCE SAFETY
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft
for Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which
they are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Industrial communication networks – Profiles – Part 3-19: Functional safety fieldbuses – Additional
specifications for CPF 19
PROPOSED STABILITY DATE: 2026
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
You may not copy or "mirror" the file or printed version of the document, or any part of it, for any other purpose without
permission in writing from IEC.

oSIST prEN IEC 61784-3-19:2024
IEC CDV 61784-3-19 © IEC 2023 – 3 –
NOTE FROM TC/SC OFFICERS:
NC comments on this CDV will be addressed during the SC65C/WG12 virtual meeting on March 21st-22nd,
2024 (two Zoom sessions from 12:00 to 15:00 Geneva time, 11:00 to 14:00 UTC). Meeting details will be
sent at a later date by the convenor.
oSIST prEN IEC 61784-3-19:2024
– 2 – IEC CDV 61784-3-19 © IEC 2023
2 CONTENTS
3 FOREWORD . 6
4 INTRODUCTION . 8
5 1 Scope . 10
6 2 Normative references . 10
7 3 Terms, definitions, symbols, abbreviated terms and conventions . 11
8 3.1 General . 11
9 3.1.1 Terms and definitions Common terms and definitions . 11
10 3.1.2 CPF 19: Additional terms and definitions . 15
11 3.2 Symbols and abbreviated terms . 16
12 3.2.1 Common symbols and abbreviated terms . 16
13 3.2.2 CPF 19: Additional symbols and abbreviated terms . 16
14 3.3 Conventions . 16
15 4 Overview of FSCP 19 (MECHATROLINK Safety) . 16
16 5 General . 17
17 5.1 External documents providing specifications for the profile . 17
18 5.2 Safety functional requirements . 17
19 5.3 Safety measures . 18
20 5.3.1 General . 18
21 5.3.2 Sequence number. 18
22 5.3.3 Time Expectation . 19
23 5.3.4 Connection ID . 22
24 5.3.5 CRC Calculation . 22
25 5.3.6 Redundancy with cross checking . 22
26 5.4 Safety communication layer structure . 26
27 5.5 Relationships with FAL (and DLL, PhL) . 27
28 5.5.1 General . 27
29 5.5.2 Data Types . 27
30 6 Safety communication layer services . 27
31 6.1 Service description . 27
32 6.1.1 S_CONNECT_START . 27
33 6.1.2 S_CONNECT_CONF . 29
34 6.1.3 S_PRM_SET . 32
35 6.1.4 S_PRM_APPLY . 34
36 6.1.5 S_SAFE_DATA . 35
37 6.1.6 S_DISCONNECT . 36
38 6.1.7 S_FAIL_SAFE . 37
39 6.1.8 S_NOP . 38
40 7 SCL protocol . 39
41 7.1 SPDU format . 39
42 7.1.1 SPDU structure . 39
43 7.1.2 Connection ID . 40
44 7.1.3 Sequence number. 40
45 7.1.4 Command . 40
46 7.1.5 State number . 41
47 7.1.6 CRC . 41
48 7.1.7 Redundant data . 41

oSIST prEN IEC 61784-3-19:2024
IEC CDV 61784-3-19 © IEC 2023 – 3 –
49 7.2 Safety FAL service protocol machine . 41
50 7.2.1 State transition of safety master . 41
51 7.2.2 State transition of safety slave . 48
52 7.3 Behavior description . 53
53 7.3.1 Connection establishment . 53
54 7.3.2 Safety data sending/receiving sequence . 59
55 7.3.3 Disconnect safety channel . 64
56 8 SCL management . 65
57 8.1 Parameter definitions . 65
58 8.1.1 General . 65
59 8.1.2 T_Watchdog . 65
60 8.1.3 T_Response . 65
61 8.1.4 Master_Connection_Key . 66
62 8.1.5 Slave_Connection_Key . 66
63 8.1.6 Connection_Id . 66
64 8.1.7 Master_Sequence_Number . 66
65 8.1.8 Extended_Master_Sequence_Number . 66
66 8.1.9 Slave_Sequence_Number. 66
67 8.1.10 Extended_Slave_Sequence_Number . 66
68 8.1.11 Node_Address . 66
69 8.1.12 Device_Info (structure) . 66
70 8.1.13 Output_Data_Length . 67
71 8.1.14 Input_Data_Length . 67
72 8.1.15 Output_User_Data_Length . 67
73 8.1.16 Input_User_Data_Length . 67
74 8.1.17 Stop_Safety_Loop . 67
75 8.1.18 Stop_Safety_Loop_Oth . 68
76 9 System requirements . 69
77 9.1 Indicators and switches . 69
78 9.1.1 General . 69
79 9.1.2 Safety connection LED . 70
80 9.2 Installation guidelines . 70
81 9.3 Safety function response time . 70
82 9.3.1 System response time . 70
83 9.3.2 FSCP 19 response time . 71
84 9.4 Duration of demands . 72
85 9.5 Constraints for calculation of system characteristics . 72
86 9.5.1 Number of stations . 72
87 9.5.2 Probability considerations . 72
88 9.6 Maintenance . 73
89 9.7 Safety manual . 73
90 10 Assessment . 73
91 Bibliography . 74
93 Figure 1 – Relationships of IEC 61784-3 with other standards (machinery) . 8
94 Figure 2 – Relationships of IEC 61784-3 with other standards (process) . 9
95 Figure 3 – Basic FSCP 19 system . 17
96 Figure 4 – Incrementing procedure of sequence
...