ZAP and DotDot do not always support very well attributes that are arrays consisting of several elements, as for example the Group or Scene Tables. In such cases, the UCL specifications have defined how to publish and interpret the values of such attributes.

The Unify library provides limited support for Attributes that are array. Protocol Controller and/or IoT Services may have to add manual code to handle these cases.

The following attributes are supported as arrays in the Unify Library.

Cluster	Attribute	Example topic
State	EndpointIdList	ucl/by-unid/zw-12345678-0001/State/Attributes/EndpointIdList/Reported
State	NetworkList	ucl/by-unid/zw-12345678-0001/State/Attributes/NetworkList/Reported
Binding	BindableClusterList	ucl/by-unid/zw-12345678-0001/ep0/Binding/Attributes/BindableClusterList/Reported
SystemMetrics	CPUUsagePercent	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/CPUUsagePercent/Reported
SystemMetrics	CPUFrequencyMHz	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/CPUFrequencyMHz/Reported
SystemMetrics	CPUAverageUsagePercent	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/CPUAverageUsagePercent/Reported
SystemMetrics	CPUMinUsagePercent	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/CPUMinUsagePercent/Reported
SystemMetrics	CPUMaxUsagePercent	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/CPUMaxUsagePercent/Reported
ApplicationMonitoring	ApplicationMQTTTopics	ucl/by-unid/zw-12345678-0001/ApplicationMonitoring/Attributes/ApplicationMQTTTopics/Reported

The following attributes are partially or not supported as arrays in the Unify Library. It is because these arrays contains objects themselves. For attributes not present in either lists (e.g. Group Table), refer to the Unify Specification.

Cluster	Attribute	Example topic
Scenes	SceneTable	ucl/by-unid/zw-12345678-0001/ep0/Scenes/Attributes/SceneTable/Reported
Binding	BindingTable	ucl/by-unid/zw-12345678-0001/ep0/Binding/Attributes/BindingTable/Reported
SystemMetrics	DisksUsage	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/DisksUsage/Reported
SystemMetrics	DisksCounters	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/DisksCounters/Reported
SystemMetrics	NetworkInterfacesData	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/NetworkInterfacesData/Reported
SystemMetrics	WirelessNetworkInterfacesData	ucl/by-unid/zw-12345678-0001/SystemMetrics/Attributes/WirelessNetworkInterfacesData/Reported
ConfigurationParameters	ConfigurationParameters	ucl/by-unid/zw-12345678-0001/ep0/ConfigurationParameters/Attributes/ConfigurationParameters/Reported
Descriptor	DeviceTypeList	ucl/by-unid/zw-12345678-0001/ep0/Descriptor/Attributes/DeviceTypeList/Reported