Digi XBee User Manual

AT commands Command mode options
XBee/XBee-PRO® S2C ZigBee® RF Module
251
Parameter range
0 - 0xFFFF [read-only]
Default
Set in firmware
AI (Association Indication)
Read information regarding last node join request.
Status
code Meaning
0x00 Successfully formed or joined a network. (Coordinators form a network, routers and end
devices join a network).
0x21 Scan found no PANs.
0x22 Scan found no valid PANs based on current SC and ID settings.
0x23 Valid Coordinator or Routers found, but they are not allowing joining (NJ expired).
0x24 No joinable beacons were found.
0x25 Unexpected state, node should not be attempting to join at this time.
0x27 Node Joining attempt failed (typically due to incompatible security settings).
0x2A Coordinator Start attempt failed.
0x2B Checking for an existing coordinator.
0x2C Attempt to leave the network failed.
0xAB Attempted to join a device that did not respond.
0xAD Secure join error - network security key not received.
0xAF Secure join error - joining device does not have the right preconfigured link key.
0xFF Initialization time; no association status has been determined yet.
Applications should read AI until it returns 0x00, indicating a successful startup (coordinator) or join
(routers and end devices).
Parameter range
0 - 0xFF [read-only]
Default
N/A
Command mode options
The following commands are Command mode option commands.

Digi XBee Specifications

General

Operating Frequency	2.4 GHz
RF Data Rate	250 kbps
Model	XBee S2C
Category	Control Unit
Operating Voltage	2.1 to 3.6V DC
Operating Temperature	-40 to +85 °C
Interface	UART
Dimensions	24.38 x 27.61 x 9.14 mm