AT commands
Networking and security commands
Parameter range
0 - 0xFFFF (bit field)
Bit field mask:
Bit
0
Parameter
0x0B (not available on XBee-PRO)
1
0x0C
2
0x0D
3
0x0E
4
0x0F
5
0x10
6
0x11
7
0x12
8
0x13
9
0x14
10
11
12
13
14
15
0x15
0x16
0x17
0x18 (not available on XBee-PRO)
0x19 (not available on XBee-PRO)
0x1A (not available on XBee-PRO)
Default
0x1FFE
SD (Scan Duration)
This command applies to the XBee/XBee-PRO S2C 802.15.4 RF Module.
Sets or displays the scan duration exponent.
Coordinator: If you set the ReassignPANID option on the coordinator (refer to A2 (Coordinator
Association)), SD determines the length of time the coordinator scans channels to locate existing
PANs. If you set the ReassignChannel option, SD determines how long the coordinator performs an
Energy Scan to determine which channel it will operate on.
End Device: Duration of Active Scan during Association. In a Beacon system, set SD=BE of the
coordinator. SD must be set at least to the highest BE parameter of any Beaconing Coordinator with
which an end device or coordinator wants to discover.
Scan Time is measured as:
([# of channels to scan] * (2 ^SD) * 15.36 ms) + (38 ms * [# of channels to scan]) + 20 ms
XBee/XBee-PRO S2C 802.15.4 RF Module User Guide
76
ETC [ ETC ]
