St (Time Before Sleep); So (Sleep Options); Wh (Wake Host Delay) - Digi XBee S2C Zigbee User Manual

AT commands
Default
0 - Router
4 - End device

ST (Time before Sleep)

This command applies to the XBee/XBee-PRO Zigbee RF Module.
Sets or displays the wake time of the device.
The timer resets each time the device receives serial or RF data. Once the timer expires, an end device
may enter low power operation. This applies to cyclic sleep end devices only.
Parameter range
1 - 0xFFFF (x 1 ms)
Default
0x1388 (5 seconds)

SO (Sleep Options)

This command applies to the XBee/XBee-PRO Zigbee RF Module.
Set or read the sleep options bit field of a device. This command is a bitmask.
Set unused option bits to 0. Sleep options should not be used for most applications. See
Devices.
Parameter range
0 - 0xFF
Bit Option
Always wake for ST time
0x02
Sleep entire SN * SP time
0x04
Default
0

WH (Wake Host Delay)

This command applies to the XBee/XBee-PRO Zigbee RF Module.
Sets or displays the wake host timer value. You can use WH to give a sleeping host processor sufficient
time to power up after the device asserts the ON_SLEEP line.
If you set WH to a non-zero value, this timer specifies a time in milliseconds that the device delays
after waking from sleep before sending data out the UART or transmitting an I/O sample. If the device
receives serial characters, the WH timer stops immediately.
Parameter range
0 - 0xFFFF (x 1 ms)
XBee/XBee-PRO® S2C Zigbee® RF Module User Guide
Sleep commands
Manage End
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