Configuration and commands Network commands
XBee®-PRO 900HP/XSC RF Modules
212
the Destination Address or Address Mask of the RX device for the packet to be received and sent out
the RX device's DO (Data Out) pin. If the combined value does not match the Destination Address or
Address Mask of the RX device, it discards the packet.
The firmware treats all 0 values as irrelevant and ignores them. For more information, see Addressing.
Binary command
0x12 (18 decimal)
Parameter range
0 - 0xFFFF
Default
0xFFFF
Note The Destination address (DT parameter) of the transmitting device must match the destination
address of the receiving device.)
Bytes returned
2
RN (Delay Slots)
Sets or displays the time delay that the transmitting device inserts before attempting to resend a
packet. If the transmitting device fails to receive an acknowledgment after sending a packet, it
inserts a random number of delay slots (ranging from 0 to (RN minus 1)) before attempting to resend
the packet. Each delay slot is 38 ms.
If two devices attempt to transmit at the same time, the random time delay after packet failure only
allows one device to transmit the packet successfully, while the other device waits until the channel is
available for RF transmission.
RN is only applicable if:
n You enable retries using the RR command, or
n You insert forced delays into a transmission using the TT command
Binary command
0x19 (25 decimal)
Parameter range
0 - 0xFF [slots]
Default
0 (no delay slots inserted)
Bytes returned
1
RR (Unicast Mac Retries)
Sets or displays the maximum number of retries sent for a given RF packet. When you enable RR (RR >
0), it enables RF packet retries and ACKs.
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