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6.6.15 Embedded DataChange Subscription Server Facet ToC Previous Next

Table 37 describes the details of the Embedded DataChange Subscription Server Facet. This Facet specifies the minimum level of support for data change notifications within subscriptions. It includes limits which minimize memory and processing overhead required to implement the Facet. This Facet includes functionality to create, modify and delete Subscriptions and to add, modify and remove Monitored Items. As a minimum for each Session, Servers shall support one Subscription with up to two items. In addition, support for two parallel Publish requests is required. This Facet is geared for a platform such as the one provided by the Micro Embedded Device Server Profile in which memory is limited and needs to be managed.

Table 37 – Embedded DataChange Subscription Server Facet

Group Conformance Unit / Profile Title Optional
Monitored Item Services Monitor Basic False
Monitored Item Services Monitor Items 2 False
Monitored Item Services Monitor QueueSize_1 False
Monitored Item Services Monitor Value Change False
Subscription   Services Subscription   Basic False
Subscription   Services Subscription   Minimum 1 False
Subscription   Services Subscription   Publish Discard Policy False
Subscription   Services Subscription   Publish Min 02 False

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