Mm (Mac Mode); Ni (Node Identifier) - Digi XBee User Manual

AT commands

MM (MAC Mode)

The MM command is used to set and read the MAC Mode value. The MM command disables/enables
the use of a Digi header contained in the 802.15.4 RF packet. By default (MM = 0), Digi Mode is enabled
and the module adds an extra header to the data portion of the 802.15.4 packet. This enables the
following features:
ND and DN command support
n
Duplicate packet detection when using ACKs
n
RR command
n
DIO/AIO sampling support
n
The MM command allows users to turn off the use of the extra header. Modes 1 and 2 are strict
802.15.4 modes. If the Digi header is disabled, the features above are also disabled.
When MM = 1 or 3, MAC retries are not supported.
When the Digi header is disabled, encrypted data that is not valid will be sent out of the UART and not
filtered out.
Note Minimum firmware version required: 1.x80. Firmware versions are numbered in hexadecimal
notation.
Parameter range
0 - 3
Parameter Configuration
0 Digi Mode (802.15.4 + Digi header)
1 802.15.4 (no ACKs)
2 802.15.4 (with ACKs)
3 Digi Mode (no ACKs)
Default
0

NI (Node Identifier)

Stores the node identifier string for a device, which is a user-defined name or description of the
device. This can be up to 20 ASCII characters.
The command automatically ends when the maximum bytes for the string have been entered.
n
Use the ND (Network Discovery) command with this string as an argument to easily identify devices
on the network.
The DN command also uses this identifier.
Note Minimum firmware version required: 1.x80. Firmware versions are numbered in hexadecimal
notation.
XBee/XBee-PRO S1 802.15.4 (Legacy) User Guide
Networking and security commands
51