Sc (Scan Channels) Command - Digi XBee Product Manual

<Networking {Addressing}> The RR command is used to set/read the maximum number of retries the
module will execute in addition to the three retries provided by the 802.15.4 MAC. For each XBee
retry, the 802.15.4 MAC can execute up to three retries.
The following applies when the DL parameter is set to 0xFFFF: If RR is set to zero (RR = 0), only one
packet is broadcast. If RR is set to a value greater than zero (RR > 0), (RR + 2) packets are sent on each
broadcast. No acknowledgments are returned on a broadcast.
This value does not need to be set on all modules for retries to work. If retries are enabled, the
transmitting module will set a bit in the Digi RF Packet header which requests the receiving module to
send an ACK (acknowledgment). If the transmitting module does not receive an ACK within 200 msec,
it will re-send the packet within a random period up to 48 msec. Each XBee retry can potentially result
in the MAC sending the packet four times (one try plus three retries). Note that retries are not
attempted for packets that are purged when transmitting with a Cyclic Sleep Coordinator.

SC (Scan Channels) command

AT command: ATSC
Parameter range: 1-0xFFFF [bitfield]
(bits 0, 14, 15 are not allowed when using the XBee-PRO)
Default parameter value: 0x1FFE (all XBee-PRO channels)
Related commands: ED (Energy Scan), SD (Scan Duration)
Minimum firmware version required: v1.x80
<Networking {Association}> The SC command is used to set and read the list of channels to scan for
all Active and Energy Scans as a bit field.
This affects scans initiated in command mode [AS (Active Scan) and ED (Energy Scan) commands] and
during End Device Association and Coordinator startup.
bit 0 - 0x0B bit 4 - 0x0F bit 8 - 0x13 bit 12 - 0x17
bit 1 - 0x0C bit 5 - 0x10 bit 9 - 0x14 bit 13 - 0x18
bit 2 - 0x0D bit 6 - 0x11 bit 10 - 0x15 bit 14 - 0x19
bit 3 - 0x0E bit 7 - 0x12 bit 11 - 0x16 bit 15 - 0x1A
XBee / XBee-PRO RF Modules 802.15.4 Product Manual
Command descriptions for the XBee/XBee-PRO RF Module
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