User's Manual
Table Of Contents
- 1. Overview
- 2. RF Module Operation
- 3. XBee ZigBee Networks
- Introduction to ZigBee
- ZigBee Stack Layers
- Networking Concepts
- ZigBee Application Layers: In Depth
- Coordinator Operation
- Router Operation
- End Device Operation
- Channel Scanning
- 4. Data Transmission, Addressing, and Routing
- 5. Security
- 6. Network Commissioning and Diagnostics
- 7. Managing End Devices
- 8. XBee Analog and Digital IO Lines
- 9. API Operation
- API Frame Specifications
- API UART Exchanges
- Supporting the API
- API Frames
- AT Command
- AT Command - Queue Parameter Value
- ZigBee Transmit Request
- Explicit Addressing ZigBee Command Frame
- Remote AT Command Request
- Create Source Route
- AT Command Response
- Modem Status
- ZigBee Transmit Status
- ZigBee Receive Packet
- ZigBee Explicit Rx Indicator
- ZigBee IO Data Sample Rx Indicator
- XBee Sensor Read Indicator
- Node Identification Indicator
- Remote Command Response
- Over-the-Air Firmware Update Status
- Route Record Indicator
- Many-to-One Route Request Indicator
- Sending ZigBee Device Objects (ZDO) Commands with the API
- Sending ZigBee Cluster Library (ZCL) Commands with the API
- Sending Public Profile Commands with the API
- 10. XBee Command Reference Tables
- 11. Module Support
- Appendix A: Definitions
- Appendix B: Agency Certifications
- United States FCC
- OEM Labeling Requirements
- FCC Notices
- FCC-Approved Antennas (2.4 GHz)
- Europe (ETSI)
- OEM Labeling Requirements
- Restrictions
- Declarations of Conformity
- Approved Antennas
- XBee RF Module
- XBee-PRO (S2) RF Module
- XBee-PRO (S2B) RF Module
- Canada (IC)
- Transmitters for Detachable Antennas
- Detachable Antenna
- Appendix C: Migrating from ZNet 2.5 to XBee ZB
- Appendix D: Additional Information
XBee®/XBee‐PRO®ZBRFModules
©2009DigiInternational,Inc. 36
Leaving a Network
There are a couple of mechanisms that will cause the router to leave its current PAN and attempt
to discover and join a new network based on its network joining parameter values.
These include the following:
• Change the ID command such that the current 64-bit PAN ID is invalid.
• Change the SC command such that the current channel (CH) is not included in the channel
mask.
• Change the ZS or any of the security command values.
• Issue the NR0 command to cause the router to leave.
• Issue the NR1 command to send a broadcast transmission, causing all devices in the network
to leave and migrate to a different channel.
Clear Network Watchdog Failure Count
Restart Network Watchdog Timer
Received RF
Communication from
Coordinator or Data
Collector
Yes
Network Watchdog
Timer Expired?
No
No
Discover Coordinator
Yes
Coordinator
Found?
Yes
Network Watchdog Failure
Count +=1
No
Network
Watchdog
Failure Count
=3 ?
Leave
Yes
No
Network Watchdog Behavior