oSIST prEN IEC 62541-16:2024
(Main)OPC unified architecture - Part 16: State machines
OPC unified architecture - Part 16: State machines
OPC Unified Architecture – Teil 16: Zustandsmaschinen
Architecture unifiée OPC - Partie 16: Diagrammes d'états
Enotna arhitektura OPC - 16. del: Stroji stanj
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2024
Enotna arhitektura OPC - 16. del: Stroji stanj
OPC unified architecture - Part 16: State machines
Ta slovenski standard je istoveten z: prEN IEC 62541-16:2024
ICS:
25.040.40 Merjenje in krmiljenje Industrial process
industrijskih postopkov measurement and control
35.240.50 Uporabniške rešitve IT v IT applications in industry
industriji
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
65E/1041/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 62541-16 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2024-01-26 2024-04-19
SUPERSEDES DOCUMENTS:
65E/951/NP, 65E/1011/RVN
IEC SC 65E : DEVICES AND INTEGRATION IN ENTERPRISE SYSTEMS
SECRETARIAT: SECRETARY:
United States of America Mr Donald (Bob) Lattimer
OF INTEREST TO THE FOLLOWING COMMITTEES: PROPOSED HORIZONTAL STANDARD:
Other TC/SCs are requested to indicate their interest, if any,
in this CDV to the secretary.
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TITLE:
OPC Unified Architecture – Part 16: State Machines
PROPOSED STABILITY DATE: 2026
NOTE FROM TC/SC OFFICERS:
electronic file, to make a copy and to print out the content for the sole purpose of preparing National Committee positions.
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IEC CDV 62541-16 © IEC 2023
1 CONTENTS
3 FIGURES . ii
4 TABLES . iii
5 1 Scope . 1
6 2 Normative references . 1
7 3 Terms, definitions, abbreviated terms, and conventions . 1
8 3.1 Terms and definitions . 1
9 4 State Machine Model . 1
10 4.1 General . 1
11 4.2 Examples of finite state machines . 2
12 4.2.1 Simple state machine . 2
13 4.2.2 State machine containing substates . 2
14 4.3 Definition of state machine . 3
15 4.4 Representation of state machines in the AddressSpace . 4
16 4.4.1 Overview . 4
17 4.4.2 StateMachineType . 5
18 4.4.3 StateVariableType . 5
19 4.4.4 TransitionVariableType . 6
20 4.4.5 FiniteStateMachineType . 7
21 4.4.6 FiniteStateVariableType . 9
22 4.4.7 FiniteTransitionVariableType . 10
23 4.4.8 StateType . 10
24 4.4.9 InitialStateType . 11
25 4.4.10 TransitionType . 12
26 4.4.11 FromState . 12
27 4.4.12 ToState . 13
28 4.4.13 HasCause . 13
29 4.4.14 HasEffect . 14
30 4.4.15 HasSubStateMachine . 14
31 4.4.16 TransitionEventType . 15
32 4.4.17 AuditUpdateStateEventType. 15
33 4.4.18 Special Restrictions on subtyping StateMachines . 16
34 4.4.19 Specific StatusCodes for StateMachines . 16
35 4.5 Examples of StateMachines in the AddressSpace . 17
36 4.5.1 StateMachineType using inheritance . 17
37 4.5.2 StateMachineType with a SubStateMachine using inheritance . 18
38 4.5.3 StateMachineType using containment . 19
39 4.5.4 Example of a StateMachine having Transition to SubStateMachine . 20
40 4.5.5 Example of a StateMachine adding a SubStateMachine on a Subtype . 21
41 4.6 StateMachine Extensions for ChoiceStates and Guards. 23
42 4.6.1 Overview . 23
43 4.6.2 ChoiceStateType . 24
44 4.6.3 HasGuard . 24
45 4.6.4 GuardVariableType . 25
46 4.6.5 ExpressionGuardVariableType . 25
47 4.6.6 ElseGuardVariableType . 26
48 4.7 Example of a StateMachine using a ChoiceState and Guards . 26
IEC CDV 62541-16 © IEC 2023 ii
50 FIGURES
52 Figure 1 – Example of a simple state machine . 2
53 Figure 2 – Example of a state machine having a sub-machine . 3
54 Figure 3 – The StateMachine Information Model . 4
55 Figure 4 – Example of a FiniteStateMachine type . 9
56 Figure 5 – Example of a FiniteStateMachine instance . 9
57 Figure 6 – Example of an initial State in a sub-machine . 11
58 Figure 7 – Example of a StateMachineType using inheritance . 17
59 Figure 8 – Example of a StateMachineType with a SubStateMachine using inheritance . 18
60 Figure 9 – Example of a StateMachineType using containment . 19
61 Figure 10 – Example of a StateMachine with Transitions from sub-states . 20
62 Figure 11 – Example of a StateMachineType having Transition to SubStateMachine . 21
63 Figure 12 – Example of a StateMachine with two States . 22
64 Figure 13 – Example of a StateMachine extended with two Substates . 22
65 Figure 14 – Example of a StateMachine extended with another two Substates . 22
66 Figure 15 – Example of a StateMachineType adding SubStateMachines in Subtypes . 23
67 Figure 16 – Example of a ChoiceState . 24
68 Figure 17 – Example of a StateMachine using ChoiceState and Guards . 27
iii IEC CDV 62541-16 © IEC 2023
70 TABLES
72 Table 1 – StateMachineType definition . 5
73 Table 2 – StateVariableType definition . 6
74 Table 3 – TransitionVariableType definition . 7
75 Table 4 – FiniteStateMachineType definition . 8
76 Table 5 – FiniteStateVariableType definition. 10
77 Table 6 – FiniteTransitionVariableType definition . 10
78 Table 7 – StateType definition . 11
79 Table 8 – InitialStateType definition . 12
80 Table 9 – TransitionType definition . 12
81 Table 10 – FromState ReferenceType . 13
82 Table 11 – ToState ReferenceType . 13
83 Table 12 – HasCause ReferenceType . 14
84 Table 13 – HasEffect ReferenceType . 14
85 Table 14 – HasSubStateMachine ReferenceType . 15
86 Table 15 – TransitionEventType . 15
87 Table 16 – AuditUpdateStateEventType . 15
88 Table 17 – Specific StatusCodes for StateMachines . 16
89 Table 18 – ChoiceStateType . 24
90 Table 19 – HasGuard ReferenceType . 25
91 Table 20 – GuardVariableType definition . 25
92 Table 21 – ExpressionGuardVariableType definition . 26
93 Table 22 – ElseGuardVariableType definition . 26
IEC CDV 62541-16 © IEC 2023 iv
95 INTERNATIONAL ELECTROTECHNICAL COMMISSION
96 ____________
98 OPC UNIFIED ARCHITECTURE –
100 Part 16: State Machines
102 FOREWORD
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