OptionSet DataTypes used for BACnet bit strings – OPC UA for BACnet

10.3 OptionSet DataTypes used for BACnet bit strings

10.3.1 General

BACnet bit strings data types are mapped to OPC UA Structure DataTypes derived from the OptionSet DataType defined in OPC 10000-5.

The OptionSet structure contains the field value as ByteString and the field validBits as ByteString. The validBits field indicates which bits in the field value are valid.

All DataTypes defined in this clause are derived from the OptionSet DataType and expose the list of bit names defined in the tables as 0:PropertyType OptionSetValues of the DataType node. The OptionSetValues 0:PropertyType provides an array of LocalizedText.

10.3.2 BACnetDaysOfWeek

This DataType is a subtype of 0:OptionSet representing the days of a week. Its values are defined in Table 94.

Table 94 – BACnetDaysOfWeek Values

Value	Bit No.	Description
monday	0
tuesday	1
wednesday	2
thursday	3
friday	4
saturday	5
sunday	6

Its representation in the AddressSpace is defined in Table 95.

Table 95 – BACnetDaysOfWeek Definition

Attribute		Value
BrowseName		BACnetDaysOfWeek
IsAbstract		False

References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of the OptionSet DataType defined in OPC 10000-5
0:HasProperty	Variable		0:OptionSetValues	0:LocalizedText []	0:PropertyType

10.3.3 BACnetEventTransitionBits

This DataType is a subtype of 0:OptionSet representing BACnet event transition bits. Its values are defined in Table 96.

Table 96 – BACnetEventTransitionBits Values

Value	Bit No.	Description
to-offnormal	0
to-fault	1
to-normal	2

Its representation in the AddressSpace is defined in Table 97.

Table 97 – BACnetEventTransitionBits Definition

Attribute		Value
BrowseName		BACnetEventTransitionBits
IsAbstract		False

References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of the OptionSet DataType defined in OPC 10000-5
0:HasProperty	Variable		0:OptionSetValues	0:LocalizedText []	0:PropertyType

10.3.4 BACnetLimitEnable

This DataType is a subtype of the 0:OptionSet representing if limits are enabled. Its values are defined in Table 98.

Table 98 – BACnetLimitEnable Values

Value	Bit No.	Description
lowLimitEnable	0
highLimitEnable	1

Its representation in the AddressSpace is defined in Table 99.

Table 99 – BACnetLimitEnable Definition

Attribute		Value
BrowseName		BACnetLimitEnable
IsAbstract		False

References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of the OptionSet DataType defined in OPC 10000-5
0:HasProperty	Variable		0:OptionSetValues	0:LocalizedText []	0:PropertyType

10.3.5 BACnetObjectTypeSupportedBits

This DataType is a subtype of 0:OptionSet and represents an option set that defines the object types that are supported by the BACnet Device. The OptionSetValues are defined in Table 100.

Table 100 – BACnetObjectTypeSupportedBits OptionSetValues

Name	Bit No.	Description
analog-input	0
analog-output	1
analog-value	2
binary-input	3
binary-output	4
binary-value	5
calendar	6
command	7
device	8
event-enrollment	9
file	10
group	11
loop	12
multi-state-input	13
multi-state-output	14
notification-class	15
program	16
schedule	17
averaging	18
multi-state-value	19
trend-log	20
life-safety-point	21
life-safety-zone	22
accumulator	23
pulse-converter	24
event-log	25
global-group	26
trend-log-multiple	27
load-control	28
structured-view	29
access-door	30
UNASSIGNED_31	31
access-credential	32
access-point	33
access-rights	34
access-user	35
access-zone	36
credential-data-input	37
network-security	38
bitstring-value	39
characterstring-value	40
date-pattern-value	41
date-value	42
datetime-pattern-value	43
datetime-value	44
integer-value	45
large-analog-value	46
octetstring-value	47
positive-integer-value	48
time-pattern-value	49
time-value	50
notification-forwarder	51
alert-enrollment	52
channel	53
lighting-output	54

Its representation in the AddressSpace is defined in Table 101.

Table 101 – BACnetObjectTypeSupportedBits Definition

Attribute		Value
BrowseName		BACnetObjectTypeSupportedBits
IsAbstract		False

References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of the OptionSet DataType defined in OPC 10000-5
0:HasProperty	Variable		0:OptionSetValues	0:LocalizedText []	0:PropertyType

10.3.6 BACnetServicesSupportedBits

This DataType is a subtype of 0:OptionSet and represents an option set that defines the BACnet service set supported by the BACnet device. The OptionsSetValues are defined in Table 102.

Table 102 – BACnetServicesSupportedBits OptionSetValues

Name	Bit No.	Description
acknowledgeAlarm	0
confirmedCOVNotification	1
confirmedEventNotification	2
getAlarmSummary	3
getEnrollmentSummary	4
subscribeCOV	5
atomicReadFile	6
atomicWriteFile	7
addListElement	8
removeListElement	9
createObject	10
deleteObject	11
readProperty	12
UNASSIGNED_13	13
readPropertyMultiple	14
writeProperty	15
writePropertyMultiple	16
deviceCommunicationControl	17
confirmedPrivateTransfer	18
reinitializeDevice	19
vtOpen	20
vtClose	21
vtData	22
UNASSIGNED_24	23
UNASSIGNED_25	24
i-Am	25
i-Have	26
unconfirmedCOVNotification	27
unconfirmedEventNotification	28
unconfirmedPrivateTransfer	29
unconfirmedTextMessage	30
timeSynchronization	31
who-Has	32
who-Is	33
readRange	34
utcTimeSynchronization	35
lifeSafetyOperation	36
subscribeCOVProperty	37
getEventInformation	38
writeGroup	39

Its representation in the AddressSpace is defined in Table 103.

Table 103 – BACnetServicesSupportedBits Definition

Attribute		Value
BrowseName		BACnetServicesSupportedBits
IsAbstract		False

References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of the OptionSet DataType defined in OPC 10000-5
0:HasProperty	Variable		0:OptionSetValues	0:LocalizedText []	0:PropertyType

10.3.7 BACnetStatusFlags

This DataType is a subtype of 0:OptionSet and represents an option set that defines the general health of the device. Three of the values are flags that are associated with values of other properties of the object. Read these values to obtain more specific error information. See the BACnet specification for more information. The OptionSetValues are defined in Table 104.

Table 104 – BACnetStatusFlags OptionSetValues

Name	Bit No.	Description
InAlarm	0
Fault	1
Overriden	2
OutOfService	3

Its representation in the AddressSpace is defined in Table 105.

Table 105 – BACnetStatusFlags Definition

Attribute		Value
BrowseName		BACnetStatusFlags
IsAbstract		False

References	NodeClass		BrowseName	DataType	TypeDefinition	Other
Subtype of the OptionSet DataType defined in OPC 10000-5
0:HasProperty	Variable		0:OptionSetValues	0:LocalizedText []	0:PropertyType