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Author

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1		-XWiki.Bei
	1	+XWiki.Xiaoling

Content

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11	11
12		-
13	13	**Table of Contents:**
14	14
15	15	{{toc/}}
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1701	1701	== 6.3 How many RS485-Slave can RS485-LN connects? ==
1702	1702
1703	1703
1704		-The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 15 different RS485 command. So RS485-LN can support max 15 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
	1703	+The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1705	1705
1706	1706
1707	1707	== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
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1850	1850	[[RS485 Configure Tool - DRAGINO>>url:http://wiki.dragino.com/xwiki/bin/view/Main/RS485_Configure_Tool/#HTableofContentsFF1A]]
1851	1851
1852	1852
1853		-
1854		-== 6.10 How to determine whether the returned data value FF is valid data or invalid data? ==
1855		-
1856		-The address of the returned data can be used as a flag.
1857		-
1858		-The customer uses the intercept command to intercept the first bit of the returned data (the slave address of the sensor) as a judgment flag.
1859		-
1860		-**Invalid data:**
1861		-
1862		-If the first bit and the data are both FF, it means the data is empty.
1863		-
1864		-
1865		-**Valid data:**
1866		-If the first bit is a normal slave address and the data is FF, it means the data is normal.
1867		-
1868		-
1869	1869	= 7. Trouble Shooting =
1870	1870
1871	1871	== 7.1 Downlink doesn't work, how to solve it? ==