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410	410	=== 2.5.1 Ways to get datalog via LoRaWAN ===
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413		-Set [[PNACKMD=1>>||anchor="H2.5.4DatalogUplinkpayload28FPORT3D329"]], S31x-LB/LS will wait for ACK for every uplink, when there is no LoRaWAN network,S31x-LB/LS will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
	413	+Set PNACKMD=1, S31x-LB/LS will wait for ACK for every uplink, when there is no LoRaWAN network,S31x-LB/LS will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
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415	415	* (((
416	416	a) S31x-LB/LS will do an ACK check for data records sending to make sure every data arrive server.
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419	419	b) S31x-LB/LS will send data in **CONFIRMED Mode** when PNACKMD=1, but S31x-LB/LS won't re-transmit the packet if it doesn't get ACK, it will just mark it as a NONE-ACK message. In a future uplink if S31x-LB/LS gets a ACK, S31x-LB/LS will consider there is a network connection and resend all NONE-ACK messages.
420	420	)))
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422		-Below is the typical case for the auto-update datalog feature (Set PNACKMD=1)
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424		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LHT65N%20LoRaWAN%20Temperature%20%26%20Humidity%20Sensor%20Manual/WebHome/image-20220703111700-2.png?width=1119&height=381&rev=1.1||alt="图片-20220703111700-2.png" height="381" width="1119"]]
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426		-
427	427	=== 2.5.2 Unix TimeStamp ===
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468	468	(((
469	469	Humidity
470	470	)))
471		-
472		-(((
473		-
474		-)))
475	475	)))|(% style="width:87px" %)(((
476	476	Temperature
477	477	)))|(% style="width:178px" %)(((