
AT commands
Execution commands
XBee/XBee-PRO® S2C ZigBee® RF Module
258
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
.
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.
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Страница 259: ...AT commands Execution commands XBee XBee PRO S2C ZigBee RF Module 259 Parameter range N A Default N A ...
Страница 289: ...Regulatory information ANATEL Brazil XBee XBee PRO S2C ZigBee RF Module 289 ...
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Страница 303: ...Load ZigBee firmware on 802 15 4 devices Background 304 Load ZB firmware 305 XBee XBee PRO S2C ZigBee RF Module 303 ...