12. Full Function Device (FFD)
■ Capable of being the PAN Coordinator
■ Implements processing of “Association Request”
■ Implements processing of “Orphan Notification”
■ Implements processing of “Start Request”
■ Implements processing of “Disassociation Notification”
Reduced Function Device (RFD)
■ Can only associate and communicate with a FFD
■ Reduced stack removes optional components
ZIGBEE ARCHITECTUREZIGBEE ARCHITECTURE
17. ZIGBEE CLUSTER LIBRARY (ZCL)ZIGBEE CLUSTER LIBRARY (ZCL)
Cluster is a structure of message or the message itself. Most of the clusters have
pair. For example for input and output messages.
ZigBee cluster library, a set of common clusters and attributes used across
multiple application profiles.
25. TECHNICAL TRENDS
The main trend in Zigbee development is improving power management and
stack interoperability. These features called Smart Energy 2.0.
The Smart Energy 2.0 effort was launched in 2008 to offer IP-based HAN
functionality. It will address the following emerging market requirements:
Supports any transport layer based on IETF IP compliant standards, including
but not limited to ZigBee IP, other RF-based and Power Line Carrier (PLC)-based
transports
Support internationally recognized standards to ensure long-term
interoperability with multiple technologies