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...	...	@@ -407,8 +407,8 @@
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408	408	There are two methods:
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410		-1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="2.6.4Pollsensorvalue"]].
411		-1.
	410	+1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
	411	+1. Set [[PNACKMD=1>>||anchor="#H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will sent all messages after network recover.
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413	413	=== 2.6.2 Unix TimeStamp ===
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...	...	@@ -996,6 +996,22 @@
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997	997	* Example: 0xA301 ~/~/Same as AT+CLRDTA
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	999	+== 4.13 Auto Send None-ACK messages ==
	1000	+
	1001	+Feature: LHT65N will wait for ACK for each uplink, If LHT65N doesn't get ACK from the IoT server, it will consider the message doesn't arrive server and store it. LHT65N keeps sending messages in normal periodically. Once LHT65N gets ACK from a server, it will consider the network is ok and start to send the not-arrive message.
	1002	+
	1003	+
	1004	+**AT Command: AT+PNACKMD**
	1005	+
	1006	+The default factory setting is 0
	1007	+
	1008	+|**Command Example**|**Function**|**Response**
	1009	+|AT+PNACKMD=1|Poll None-ACK message|OK
	1010	+
	1011	+**Downlink Command: 0x34**
	1012	+
	1013	+* Example: 0x3401 ~/~/Same as AT+PNACKMD=1
	1014	+
999	999	= 5. Battery & How to replace =
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1001	1001	== 5.1 Battery Type ==