BACnet与OPC UA信息模型：0.17版公共评审稿详解

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本资源是一份名为"BACnet OPC UA Information Model.pdf"的重要文档，主要关注于将BACnet（建筑和楼宇自动化网络）与OPC Unified Architecture (OPC UA) 的集成。OPC UA 是一种工业自动化标准，旨在提供设备之间的互操作性和统一的访问接口，使得不同制造商的设备能够无缝通信。这份文档在0.17版公共审查期间更新，提供了关于OPC UA信息模型如何适应BACnet标准的详细说明。文档的核心部分首先阐述了模型的范围和引用的相关文档，以便读者理解背景和参考框架。接着，定义了术语、概念以及来自BACnet标准的关键元素，如命令优先级（Command Prioritization）和值的变化（Change of Value, COV）。BACnet Ua Mapper 是一个关键概念，它可能是用于映射BACnet对象和属性到OPC UA模型中的工具或协议转换器。文档还介绍了缩写和符号的使用，以及在文档中遵循的一系列约定，包括节点描述的描述方式、Node Ids（节点标识符）和BrowseNames（浏览名称）的结构。Node Ids是设备和数据点在OPC UA网络中的唯一标识，BrowseNames则提供了用户友好的命名，便于理解和查找。在第四部分，作者深入讲解了BACnet的基础信息，如其概述、数据链路层、对象模型、应用服务以及设备配置。这部分强调了BACnet如何支持实时监控、控制和数据交换。然后，文档引入了OPC UA对BACnet的通用信息，对比了两者的技术特征和如何在实际应用中整合，以便实现跨平台的自动化系统。这份文档为想要理解和实施基于BACnet的OPC UA集成的工程师和开发者提供了宝贵的参考资料，涵盖了技术细节、标准化术语和实践指南，有助于简化集成过程并确保系统的兼容性和效率。通过阅读这份文档，读者将能更好地理解和利用这两种工业自动化标准的优势。

OPC UA Information Model for BACnet – xvi – Public Review 0.17PR

10.3.5 BACnetObjectTypeSupportedBits ............................................................ 124

10.3.6 BACnetServicesSupportedBits ................................................................. 126

10.3.7 BACnetStatusFlags ................................................................................. 126

10.4 Enumeration DataTypes ...................................................................................... 127

10.4.1 General ................................................................................................... 127

10.4.2 BACnetAction .......................................................................................... 127

10.4.3 BACnetBackupState ................................................................................ 127

10.4.4 BACnetDay .............................................................................................. 128

10.4.5 BACnetDayOfMonth ................................................................................. 128

10.4.6 BACnetDayOfWeek ................................................................................. 129

10.4.7 BACnetDeviceCommunicationEnabled ..................................................... 130

10.4.8 BACnetDeviceStatus ............................................................................... 130

10.4.9 BACnetEventState ................................................................................... 130

10.4.10 BACnetEventType ................................................................................... 131

10.4.11 BACnetFaultType .................................................................................... 131

10.4.12 BACnetLoggingType ................................................................................ 131

10.4.13 BACnetMonth .......................................................................................... 132

10.4.14 BACnetNotifyType ................................................................................... 132

10.4.15 BACnetObjectTypeEnum ......................................................................... 133

10.4.16 BACnetPolarity ........................................................................................ 134

10.4.17 BACnetPropertyIdentifier ......................................................................... 134

10.4.18 BACnetReinitializedStateofDevice ........................................................... 134

10.4.19 BACnetReliability ..................................................................................... 135

10.4.20 BACnetRestartReason ............................................................................. 135

10.4.21 BACnetSegmentation............................................................................... 135

10.5 OPC UA Structure DataTypes .............................................................................. 136

10.5.1 General ................................................................................................... 136

10.5.2 BACnetAddress ....................................................................................... 136

10.5.3 BACnetAddressBinding ............................................................................ 136

10.5.4 BACnetCOVSubscription ......................................................................... 136

10.5.5 BACnetDailySchedule .............................................................................. 137

10.5.6 BACnetDate............................................................................................. 137

10.5.7 BACnetDateRange .................................................................................. 138

10.5.8 BACnetDateTime ..................................................................................... 138

10.5.9 BACnetDestination .................................................................................. 138

10.5.10 BACnetDeviceObjectPropertyReference .................................................. 139

10.5.11 BACnetRecipientProcess ......................................................................... 139

10.5.12 BACnetSpecialEvent ................................................................................ 139

10.5.13 BACnetTime ............................................................................................ 140

10.5.14 BACnetTimeValue ................................................................................... 140

10.5.15 BACnetTimeValueValue........................................................................... 140

10.5.16 BACnetWeekNDay ................................................................................... 141

10.6 OPC UA Union DataTypes ................................................................................... 141

10.6.1 General ................................................................................................... 141

10.6.2 BACnetCalendarEntry .............................................................................. 141

10.6.3 BACnetClientCOV.................................................................................... 141

10.6.4 BACnetEventParameter ........................................................................... 142

10.6.5 BACnetFaultParameter ............................................................................ 142

10.6.6 BACnetPriorityValue ................................................................................ 142

OPC UA Information Model for BACnet xvii Public Review 0.17PR

10.6.7 BACnetRecipient ..................................................................................... 143

10.6.8 BACnetSpecialEventPeriod ...................................................................... 143

10.6.9 BACnetTimeStamp .................................................................................. 143

11 Mapping of StatusCodes ............................................................................................... 145

12 System Architecture and Profiles .................................................................................. 148

12.1 Address space structure ...................................................................................... 148

12.2 System Architecture ............................................................................................ 148

12.3 BACnet Profiles ................................................................................................... 148

12.4 OPC UA Conformance Units and Profiles ............................................................ 150

12.5 Handling of OPC UA namespaces ....................................................................... 150

Annex A (normative): BACnet Namespace and Mappings ................................................... 152

A.1 Namespace and identifiers for BACnet Information Model ................................... 152

A.2 Profile URIs for BACnet Information Model .......................................................... 152

Annex B (informative): BACnet Client Implementation ......................................................... 153

B.1 General ............................................................................................................... 153

B.2 BACnet revisions ................................................................................................. 153

B.3 Timestamps and time synchronization ................................................................. 153

B.4 List handling ........................................................................................................ 153

B.5 Write with priority ................................................................................................ 153

B.6 BACnet Change of Value (COV) and OPC UA monitoring .................................... 153

B.7 Refresh of alarm states ....................................................................................... 153

B.8 Confirmation of confirmed event notifications ...................................................... 153

OPC UA Information Model for BACnet xviii Public Review 0.17PR

FIGURES

Figure 1 – OPC UA Graphical Notation for NodeClasses ....................................................... 11

Figure 2 – OPC UA Graphical Notation for References ......................................................... 11

Figure 3 – OPC UA Graphical Notation Example ................................................................... 12

Figure 4 – Use case diagram ................................................................................................ 14

Figure 5 – Mapping with inheritance and type hirarchies ....................................................... 15

Figure 6 – Mapping to OPC UA Attributes and Properties ..................................................... 15

Figure 7 – Mapping aggregation of BACnet property groups ................................................. 16

Figure 8 – BACnet OPC UA Model Overview ........................................................................ 17

Figure 9 – BACnet mapping example .................................................................................... 18

Figure 10 – BACnetObjectType overview .............................................................................. 24

Figure 11 – BACnetDeviceType overview .............................................................................. 26

Figure 12 – Event notifiers in BACnet and OPC UA ............................................................... 29

Figure 13 – BACnetAnalogType overview ............................................................................. 37

Figure 14 – BACnetAnalogInputType overview ...................................................................... 40

Figure 15 – BACnetAnalogOutputType overview ................................................................... 40

Figure 16 – BACnetAnalogValueType overview..................................................................... 42

Figure 17 – BACnetBinaryType overview .............................................................................. 43

Figure 18 – BACnetBinaryInputType overview ...................................................................... 45

Figure 19 – BACnetBinaryOutputType overview .................................................................... 47

Figure 20 – BACnetBinaryValueType overview ..................................................................... 49

Figure 21 – BACnetMultiStateType overview ......................................................................... 51

Figure 22 – BACnetMultiStateInputType overview ................................................................. 53

Figure 23 – BACnetMultiStateOutputType overview .............................................................. 55

Figure 24 – BACnetMultiStateValueType overview ................................................................ 57

Figure 25 – BACnetCalendarType overview .......................................................................... 59

Figure 26 – BACnetScheduleType overview .......................................................................... 62

Figure 27 – BACnetLoopType overview ................................................................................ 66

Figure 28 – BACnetEventEnrollmentType overview ............................................................... 72

Figure 29 – BACnetLogType overview .................................................................................. 75

Figure 30 – BACnetTrendLogBaseType overview.................................................................. 78

Figure 31 – BACnetTrendLogType overview ......................................................................... 80

Figure 32 – BACnetTrendLogMultipleType overview ............................................................. 82

Figure 33 – BACnetEventLogType overview.......................................................................... 83

Figure 34 – BACnetStructuredViewType overview ................................................................. 83

OPC UA Information Model for BACnet xix Public Review 0.17PR

TABLES

Table 1 – Type Definition Table .............................................................................................. 3

Table 2 – Examples of DataTypes ........................................................................................... 4

Table 3 – Common Node Attributes ......................................................................................... 6

Table 4 – Common Object Attributes ....................................................................................... 6

Table 5 – Common Variable Attributes .................................................................................... 6

Table 6 – Common VariableType Attributes ............................................................................ 7

Table 7 – BACnetInternetworkType Definition ....................................................................... 20

Table 8 – BACnetObjectType Definition ................................................................................ 24

Table 9 – BACnetObjectTypeUnknown Definition .................................................................. 25

Table 10 – BACnetDeviceType Definition .............................................................................. 27

Table 11 – Object_List definition ........................................................................................... 28

Table 12 – Structured_Object_List definition ......................................................................... 28

Table 13 – BACnetAnalogType Definition .............................................................................. 37

Table 14 – Present_Value AnalogItemType Override ............................................................ 38

Table 15 – EventReporting Override ..................................................................................... 39

Table 16 – BACnetAnalogInputType Definition ...................................................................... 40

Table 17 – BACnetAnalogOutputType Definition ................................................................... 41

Table 18 – BACnetAnalogValueType Definition ..................................................................... 42

Table 19 – BACnetBinaryType Definition .............................................................................. 43

Table 20 – BACnetBinaryInputType Definition ....................................................................... 45

Table 21 – EventReporting Override ..................................................................................... 46

Table 22 – EventAlgorithm Override ...................................................................................... 46

Table 23 – BACnetBinaryOutputType Definition .................................................................... 47

Table 24 – EventReporting Override ..................................................................................... 48

Table 25 – BACnetBinaryValueType Definition ...................................................................... 49

Table 26 – EventReporting Override ..................................................................................... 50

Table 27 – EventAlgorithm Override ...................................................................................... 50

Table 28 – BACnetMultiStateType Definition ......................................................................... 51

Table 29 – BACnetMultiStateInputType Definition ................................................................. 53

Table 30 – EventReporting Override ..................................................................................... 54

Table 31 – EventAlgorithm Override ...................................................................................... 54

Table 32 – FaultEvaluation Override ..................................................................................... 54

Table 33 – FaultAlgorithm Override ....................................................................................... 54

Table 34 – BACnetMultiStateOutputType Definition .............................................................. 55

Table 35 – EventReporting Override ..................................................................................... 56

Table 36 – BACnetMultiStateValueType Definition ................................................................ 57

Table 37 – EventReporting Override ..................................................................................... 58

Table 38 – EventAlgorithm Override ...................................................................................... 58

Table 39 – FaultEvaluation Override ..................................................................................... 58

Table 40 – FaultAlgorithm Override ....................................................................................... 58

Table 41 – BACnetCalendarType Definition .......................................................................... 60

Table 42 – BACnetScheduleType Definition .......................................................................... 62

OPC UA Information Model for BACnet xx Public Review 0.17PR

Table 43 – BACnetLoopType Definition ................................................................................. 67

Table 44 – Present_Value AnalogItemType Override ............................................................ 68

Table 45 – Controlled_Variable_Value definition ................................................................... 69

Table 46 – Setpoint definition................................................................................................ 70

Table 47 – Proportional_Constant definition .......................................................................... 70

Table 48 – Integral_Constant definition ................................................................................. 70

Table 49 – Derivative_Constant definition ............................................................................. 71

Table 50 – Bias definition ...................................................................................................... 71

Table 51 – EventReporting Override ..................................................................................... 72

Table 52 – BACnetEventEnrollmentType Definition ............................................................... 73

Table 53 – BACnetLogType Definition ................................................................................... 76

Table 54 – EventReporting Override ..................................................................................... 78

Table 55 – BACnetTrendLogBaseType Definition .................................................................. 79

Table 56 – BACnetTrendLogType Definition .......................................................................... 80

Table 57 – Log_Buffer Attribute definition ............................................................................. 81

Table 58 – BACnetTrendLogMultipleType Definition.............................................................. 82

Table 59 – BACnetEventLogType Definition .......................................................................... 83

Table 60 – BACnetStructuredViewType Definition ................................................................. 84

Table 61 – BACnetStructuredViewUnkownNodeType Definition ............................................ 84

Table 62 – BACnetStructuredViewSystemNodeType Definition ............................................. 84

Table 63 – BACnetNotifierType Definition ............................................................................. 85

Table 64 – BACnetNotificationClassType Definition .............................................................. 85

Table 65 – BACnetTimeManagementType Definition ............................................................. 86

Table 66 – BACnetAutomaticTimeSynchronizationMasterType Definition .............................. 87

Table 67 – BACnetBackupRestoreType Definition ................................................................. 90

Table 68 – BACnetMstpMasterType Definition ...................................................................... 91

Table 69 – BACnetDeviceRestartType Definition ................................................................... 93

Table 70 – BACnetChangeOfStateCountType Definition ....................................................... 94

Table 71 – BACnetElapsedActiveTimeType Definition ........................................................... 95

Table 72 – BACnetEventReportingType Definition ................................................................ 96

Table 73 – BACnetEventAlgorithmType Definition ................................................................. 98

Table 74 – BACnetChangeOfStateAlgorithmType Definition .................................................. 99

Table 75 – BACnetCommandFailureAlgorithmType Definition ............................................... 99

Table 76 – BACnetFloatingLimitAlgorithmType Definition .................................................... 100

Table 77 – BACnetOutOfRangeAlgorithmType Definition .................................................... 101

Table 78 – BACnetBufferReadyAlgorithmType Definition .................................................... 102

Table 79 – BACnetChangeOfBitStringAlgorithmType Definition ........................................... 103

Table 80 – BACnetChangeOfValueAlgorithmType Definition ............................................... 103

Table 81 – BACnetUnsignedRangeAlgorithmType Definition ............................................... 104

Table 82 – BACnetChangeOfStatusFlagsAlgorithmType Definition ...................................... 105

Table 83 – BACnetDoubleOutOfRangeAlgorithmType Definition ......................................... 105

Table 84 – BACnetSignedOutOfRangeAlgorithmType Definition .......................................... 106

Table 85 – BACnetUnsignedOutOfRangeAlgorithmType Definition ...................................... 107

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