AeroComm ZB2430 manual P O W E R D O W N M O D E S, T a b l e 7 S l e e p M o d e S e t t i n g s

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S E R I A L I N T E R F A C E

P O W E R D O W N M O D E S

Power down modes allow the ZB2430 to operate at minimum current consumption while not in use. The ZB2430 provides two such modes (End Devices only).

•Cyclic Sleep (Wake periodically based on software-controlled timer or pin interupt)

•Deep Sleep (Wake on pin interrupt)

In order for a module to transition into Sleep mode, the Sleep_Int pin (pin 12) must be logic High or floating. If this pin is pulled Low, the device will be forced out of Sleep mode and will not be allowed to Sleep until the pin returns to the High state. While in Sleep mode, the module will not transmit/receive data until after waking up.

T a b l e 7 : S l e e p M o d e S e t t i n g s

	Sleep Mode	Transition to Sleep			Transition to Wake		Current Draw (mA)
	Cyclic Sleep	Automatic transition to		Sleep	Automatic transition to Wake mode		ZB2430: 0.5 uA
		mode after	sending	Data	occurs after an EEPROM selectable		ZB2430-100: 7.6 uA
		Request to Parent Device or			period or manual transition when
		Sleep_Int is asserted High.			Sleep_Int	is pulled logic Low.
		End Device wake time can
		also be configured in the
		EEPROM (EEPROM address
		0x3B).
	Deep Sleep	Automatic transition to Sleep			Manual transition to Wake mode occurs		ZB2430: 0.5 uA
		mode occurs after device has			after Sleep_Int is pulled logic Low.		ZB2430-100: 7.6 uA
		successfully	associated	with
		Network.
C y c l i c S l e e p

In Cyclic Sleep mode the End Device will wake periodically to request data from its Parent device. The rate at which the module wakes up to check for data is adjustable in EEPROM (EEPROM address 0x34, 16-bits) in 1 ms increments with a default setting of 1000ms. The device will wakeup for the period specified by the End Device Wake time (EEPROM address 0x3B), send a data request to its Parent, and then return to sleep until the next cycle.

Note: Setting the sleep rate to 0x0000 forces the module into Deep Sleep mode (see below).

D e e p S l e e p

Deep sleep mode is a power-down mode in which the ZB2430 automatically transitions to Sleep mode after having associated with the Network. While in Deep Sleep mode, the device will not wake up until interrupted by the Sleep_Int pin. To wake the device out of Deep Sleep mode, Sleep_Int must be pulled logic Low. The device will return to Deep Sleep mode after Sleep_Int is returned to the High state.