Digi XBee User Manual

AT commands Execution commands
XBee/XBee-PRO® S2C ZigBee® RF Module
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ND also accepts a NI (Node Identifier) as a parameter (optional). In this case, only a device that
matches the supplied identifier responds after a jittered time delay. If there are no matching devices,
the command returns and “ERROR”. The jittered time delay is based on the NT setting.
The radius of the ND command is set by the BH command.
A status code of 1=ERROR will be returned if the transmit queue is full. That means there are already
four messages queued for transmission. The application is trying to send messages faster than the
device can process the requests. The application may either try again later, be redesigned to send
messages at a slower rate, or wait for a Tx Status response for a prior message before attempting to
send another.
For more information about the options that affect the behavior of the ND command, see NO
(Network Discovery Options).
Parameter range
20-byte printable ASCIIstring
Default
ASCII space character (0x20)
DN (Destination Node)
Resolves an NI (Node identifier) string to a physical address (case sensitive).
The following events occur after DN discovers the destination node:
When DN is sent in Command mode (AT Firmware):
1. The device sets DL and DH to the address of the device with the matching NI string.
The address selected (either 16-bit short address or 64-bit extended address) is chosen based
on the destination device's MY command configuration.
2. The receiving device returns OK (or ERROR).
3. The device exits Command mode to allow for immediate communication. If an ERROR is
received, then Command mode does not exit.
When DN is sent as a local AT Command API frame (API Firmware):
1. The receiving device returns the 16-bit network and 64-bit extended addresses in an API
Command Response frame.
2. If there is no response from a module within (NT* 100) milliseconds or you do not specify a
parameter (by leaving it blank), the receiving device returns an ERROR message. In the case of
an ERROR, the device does not exit command mode. Set the radius of the DN command using
the BH command.
Parameter range
Up to 20-Byte printable ASCII string
Default
N/A
IS (Force Sample)
Forces a read of all enabled digital and analog input lines.

Digi XBee Specifications

General

Brand	Digi
Model	XBee
Category	Control Unit
Language	English