Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual

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1		-RS485-LN – RS485 to LoRaWAN Converter User Manual
	1	+RS485-LN – RS485 to LoRaWAN Converter

Content

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1		-(% aria-label="1653266934636-343.png image widget" contenteditable="false" role="region" tabindex="-1" %)
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	2	+[[image:1653266934636-343.png||height="385" width="385"]]
5	5
6		-(% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
7		-)))
8	8
9	9
	6	+**RS485-LN – RS485 to LoRaWAN Converter User Manual**
10	10
11	11
12		-
13		-
14		-
15	15	**Table of Contents:**
16	16
17		-{{toc/}}
18	18
19	19
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23		-)))
24	24
25	25
26		-
27		-
28		-
29		-
30		-
31	31	= 1.Introduction =
32	32
33		-
34	34	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
35	35
36	36	(((
37	37	(((
38		-(((
39		-
40		-
41	41	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
42	42	)))
43		-)))
44	44
45	45	(((
46		-(((
47	47	RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
48	48	)))
49		-)))
50	50
51	51	(((
52		-(((
53	53	(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
54	54	)))
55		-)))
56	56
57	57	(((
58		-(((
59	59	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
60		-)))
61	61
62		-(((
63	63	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
64		-
65		-
66	66	)))
67	67	)))
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69	69
70		-(% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	39	+[[image:1653267211009-519.png||height="419" width="724"]]
71	71
72	72
73		-
74	74	== 1.2 Specifications ==
75	75
76	76
77		-(% style="color:#037691" %)**Hardware System:**
	45	+**Hardware System:**
78	78
79	79	* STM32L072CZT6 MCU
80	80	* SX1276/78 Wireless Chip
...	...	@@ -82,17 +82,13 @@
82	82	** Idle: 32mA@12v
83	83	** 20dB Transmit: 65mA@12v
84	84
	53	+**Interface for Model:**
85	85
86		-
87		-(% style="color:#037691" %)**Interface for Model:**
88		-
89	89	* RS485
90	90	* Power Input 7~~ 24V DC.
91	91
	58	+**LoRa Spec:**
92	92
93		-
94		-(% style="color:#037691" %)**LoRa Spec:**
95		-
96	96	* Frequency Range:
97	97	** Band 1 (HF): 862 ~~ 1020 Mhz
98	98	** Band 2 (LF): 410 ~~ 528 Mhz
...	...	@@ -110,16 +110,12 @@
110	110	* Preamble detection.
111	111	* 127 dB Dynamic Range RSSI.
112	112	* Automatic RF Sense and CAD with ultra-fast AFC.
113		-* Packet engine up to 256 bytes with CRC
	77	+* Packet engine up to 256 bytes with CRC.
114	114
115		-
116		-
117		-
118	118	== 1.3 Features ==
119	119
120		-
121	121	* LoRaWAN Class A & Class C protocol (default Class C)
122		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
	82	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
123	123	* AT Commands to change parameters
124	124	* Remote configure parameters via LoRa Downlink
125	125	* Firmware upgradable via program port
...	...	@@ -127,12 +127,8 @@
127	127	* Support Modbus protocol
128	128	* Support Interrupt uplink (Since hardware version v1.2)
129	129
130		-
131		-
132		-
133	133	== 1.4 Applications ==
134	134
135		-
136	136	* Smart Buildings & Home Automation
137	137	* Logistics and Supply Chain Management
138	138	* Smart Metering
...	...	@@ -140,30 +140,19 @@
140	140	* Smart Cities
141	141	* Smart Factory
142	142
143		-
144		-
145		-
146	146	== 1.5 Firmware Change log ==
147	147
148		-
149	149	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
150	150
151	151
152		-
153	153	== 1.6 Hardware Change log ==
154	154
155		-
156	156	(((
157	157	(((
158		-(((
159	159	v1.2: Add External Interrupt Pin.
160		-)))
161	161
162		-(((
163	163	v1.0: Release
164		-)))
165	165
166		-
167	167
168	168	)))
169	169	)))
...	...	@@ -170,7 +170,6 @@
170	170
171	171	= 2. Power ON Device =
172	172
173		-
174	174	(((
175	175	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
176	176
...	...	@@ -181,33 +181,26 @@
181	181	Once there is power, the RS485-LN will be on.
182	182	)))
183	183
184		-(% aria-label="1653268091319-405.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268091319-405.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	128	+[[image:1653268091319-405.png]]
185	185
186		-
187	187
188	188	)))
189	189
190	190	= 3. Operation Mode =
191	191
192		-
193	193	== 3.1 How it works? ==
194	194
195		-
196	196	(((
197		-(((
198	198	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
199		-)))
200	200
201		-
202	202
203	203	)))
204	204
205	205	== 3.2 Example to join LoRaWAN network ==
206	206
207		-
208	208	Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here.
209	209
210		-(% aria-label="1653268155545-638.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268155545-638.png||data-widget="image" height="334" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	147	+[[image:1653268155545-638.png||height="334" width="724"]]
211	211
212	212
213	213	(((
...	...	@@ -219,17 +219,14 @@
219	219	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
220	220	)))
221	221
222		-(% aria-label="1653268227651-549.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268227651-549.png||data-widget="image" height="592" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	159	+[[image:1653268227651-549.png||height="592" width="720"]]
223	223
224		-
225	225	(((
226		-The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
227		-
228		-
	162	+The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
229	229	)))
230	230
231	231	(((
232		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
	166	+**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
233	233	)))
234	234
235	235	(((
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237	237	)))
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240		-(% aria-label="1652953462722-299.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953462722-299.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	174	+[[image:1652953462722-299.png]]
241	241
242		-
243	243	(((
244	244	(((
245	245	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
...	...	@@ -246,75 +246,65 @@
246	246	)))
247	247
248	248	(((
249		-**Add APP EUI in the application.**
	182	+Add APP EUI in the application.
250	250	)))
251	251	)))
252	252
253		-(% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	186	+[[image:image-20220519174512-1.png]]
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	188	+[[image:image-20220519174512-2.png||height="323" width="720"]]
256	256
257		-(% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	190	+[[image:image-20220519174512-3.png||height="556" width="724"]]
258	258
259		-(% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	192	+[[image:image-20220519174512-4.png]]
260	260
261	261	You can also choose to create the device manually.
262	262
263		-(% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	196	+[[image:1652953542269-423.png||height="710" width="723"]]
264	264
	198	+Add APP KEY and DEV EUI
265	265
	200	+[[image:1652953553383-907.png||height="514" width="724"]]
266	266
267		-**Add APP KEY and DEV EUI**
268	268
269		-(% aria-label="1652953553383-907.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953553383-907.png||data-widget="image" height="514" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
270		-
271		-
272	272	(((
273		-(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
	204	+**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
274	274	)))
275	275
276		-(% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	207	+[[image:1652953568895-172.png||height="232" width="724"]]
277	277
278	278
279		-
280	280	== 3.3 Configure Commands to read data ==
281	281
282		-
283	283	(((
284	284	(((
285		-(((
286		-There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	214	+There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
287	287	)))
288		-)))
289	289
290	290	(((
291		-(((
292		-(% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
293		-)))
	218	+(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
294	294
295		-
296	296
297	297	)))
298	298	)))
299	299
300		-=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
	224	+=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
301	301
302		-
303	303	To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
304	304
305		-(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
306		-|=(% style="width: 110px;" %)(((
	228	+(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
	229	+|(% style="width:128px" %)(((
307	307	**AT Commands**
308		-)))|=(% style="width: 190px;" %)(((
	231	+)))|(% style="width:305px" %)(((
309	309	**Description**
310		-)))|=(% style="width: 190px;" %)(((
	233	+)))|(% style="width:346px" %)(((
311	311	**Example**
312	312	)))
313		-|(% style="width:110px" %)(((
	236	+|(% style="width:128px" %)(((
314	314	AT+BAUDR
315		-)))|(% style="width:190px" %)(((
	238	+)))|(% style="width:305px" %)(((
316	316	Set the baud rate (for RS485 connection). Default Value is: 9600.
317		-)))|(% style="width:190px" %)(((
	240	+)))|(% style="width:346px" %)(((
318	318	(((
319	319	AT+BAUDR=9600
320	320	)))
...	...	@@ -323,11 +323,11 @@
323	323	Options: (1200,2400,4800,14400,19200,115200)
324	324	)))
325	325	)))
326		-|(% style="width:110px" %)(((
	249	+|(% style="width:128px" %)(((
327	327	AT+PARITY
328		-)))|(% style="width:190px" %)(((
	251	+)))|(% style="width:305px" %)(((
329	329	Set UART parity (for RS485 connection)
330		-)))|(% style="width:190px" %)(((
	253	+)))|(% style="width:346px" %)(((
331	331	(((
332	332	AT+PARITY=0
333	333	)))
...	...	@@ -336,9 +336,9 @@
336	336	Option: 0: no parity, 1: odd parity, 2: even parity
337	337	)))
338	338	)))
339		-|(% style="width:110px" %)(((
	262	+|(% style="width:128px" %)(((
340	340	AT+STOPBIT
341		-)))|(% style="width:190px" %)(((
	264	+)))|(% style="width:305px" %)(((
342	342	(((
343	343	Set serial stopbit (for RS485 connection)
344	344	)))
...	...	@@ -346,7 +346,7 @@
346	346	(((
347	347
348	348	)))
349		-)))|(% style="width:190px" %)(((
	272	+)))|(% style="width:346px" %)(((
350	350	(((
351	351	AT+STOPBIT=0 for 1bit
352	352	)))
...	...	@@ -362,34 +362,24 @@
362	362
363	363	=== 3.3.2 Configure sensors ===
364	364
365		-
366	366	(((
367	367	(((
368		-Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
369		-
370		-
	290	+Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
371	371	)))
372	372	)))
373	373
374		-(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
375		-|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
376		-|AT+CFGDEV|(% style="width:110px" %)(((
377		-(((
	294	+(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
	295	+|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
	296	+|AT+CFGDEV|(% style="width:418px" %)(((
378	378	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
379		-)))
380	380
381		-(((
382	382	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
383		-)))
384	384
385		-(((
386	386	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
387		-)))
388		-)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	302	+)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
389	389
390	390	=== 3.3.3 Configure read commands for each sampling ===
391	391
392		-
393	393	(((
394	394	During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
395	395
...	...	@@ -400,7 +400,7 @@
400	400	During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
401	401
402	402
403		-(% style="color:#037691" %)**Each RS485 commands include two parts:**
	316	+**Each RS485 commands include two parts:**
404	404
405	405	~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
406	406
...	...	@@ -411,14 +411,15 @@
411	411
412	412	After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
413	413
	327	+
414	414	Below are examples for the how above AT Commands works.
415	415
416	416
417		-(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
	331	+**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
418	418
419	419	(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
420	420	|(% style="width:496px" %)(((
421		-(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	335	+**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
422	422
423	423	**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
424	424
...	...	@@ -430,10 +430,10 @@
430	430	In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
431	431
432	432
433		-(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	347	+**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
434	434
435		-(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
436		-|(% style="width:510px" %)(((
	349	+(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
	350	+|(% style="width:722px" %)(((
437	437	**AT+DATACUTx=a,b,c**
438	438
439	439	* **a: length for the return of AT+COMMAND**
...	...	@@ -443,29 +443,25 @@
443	443
444	444	**Examples:**
445	445
446		-* (% style="color:#037691" %)**Grab bytes**
	360	+* Grab bytes:
447	447
448		-(% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	362	+[[image:image-20220602153621-1.png]]
449	449
450	450
	365	+* Grab a section.
451	451
452		-* (% style="color:#037691" %)**Grab a section**
	367	+[[image:image-20220602153621-2.png]]
453	453
454		-(% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
455	455
	370	+* Grab different sections.
456	456
	372	+[[image:image-20220602153621-3.png]]
457	457
458		-* (% style="color:#037691" %)**Grab different sections**
459		-
460		-(% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
461		-
462		-
463	463
464	464	)))
465	465
466	466	=== 3.3.4 Compose the uplink payload ===
467	467
468		-
469	469	(((
470	470	Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
471	471
...	...	@@ -494,7 +494,7 @@
494	494	Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
495	495	)))
496	496
497		-(% aria-label="1653269759169-150.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653269759169-150.png||data-widget="image" height="513" width="716"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	407	+[[image:1653269759169-150.png||height="513" width="716"]]
498	498
499	499
500	500	(% style="color:#037691" %)**Examples: AT+DATAUP=1**
...	...	@@ -506,13 +506,12 @@
506	506
507	507	(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
508	508
509		-
510	510	1. PAYVER: Defined by AT+PAYVER
511	511	1. PAYLOAD COUNT: Total how many uplinks of this sampling.
512	512	1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
513	513	1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
514	514
515		-(% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	424	+[[image:image-20220602155039-4.png]]
516	516
517	517
518	518	So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
...	...	@@ -524,7 +524,7 @@
524	524	DATA3=the rest of Valid value of RETURN10= **30**
525	525
526	526
527		-(% style="color:red" %)**Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:**
	436	+(% style="color:red" %)Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:
528	528
529	529	~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
530	530
...	...	@@ -534,31 +534,14 @@
534	534
535	535	~* For all other bands: max 51 bytes for each uplink.
536	536
537		-(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
538	538
539		-(% style="color:red" %)** When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value. (Since v1.4.0)**
540		-
541		-
542		-(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
543		-
544		-1)When AT+MOD=1, if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.
545		-
546		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114359-3.png?width=1106&height=297&rev=1.1||alt="image-20220824114359-3.png" height="297" width="1106"]]
547		-
548		-2)When AT+MOD=2, if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n 00s.
549		-
550		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114330-2.png?rev=1.1||alt="image-20220824114330-2.png"]]
551		-
552		-
553	553	Below are the uplink payloads:
554	554
555		-(% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	449	+[[image:1654157178836-407.png]]
556	556
557	557
558		-
559	559	=== 3.3.5 Uplink on demand ===
560	560
561		-
562	562	Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
563	563
564	564	Downlink control command:
...	...	@@ -571,1148 +571,380 @@
571	571
572	572	=== 3.3.6 Uplink on Interrupt ===
573	573
574		-
575	575	RS485-LN support external Interrupt uplink since hardware v1.2 release.
576	576
577		-(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	468	+[[image:1654157342174-798.png]]
578	578
579	579	Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
580	580
581	581
582		-
583	583	== 3.4 Uplink Payload ==
584	584
	475	+(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
	476	+|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
	477	+|Value|(% style="width:120px" %)(((
	478	+Battery(mV)
585	585
586		-(% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	480	+&
587	587
588		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	482	+Interrupt _Flag
	483	+)))|(% style="width:116px" %)(((
	484	+PAYLOAD_VER
589	589
	486	+
	487	+)))|(% style="width:386px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
590	590
	489	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
591	591
592		-== 3.5 Configure RS485-LN via AT or Downlink ==
593	593
	492	+== 3.5 Configure RS485-BL via AT or Downlink ==
594	594
595		-(((
596	596	User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
597		-)))
598	598
599		-(((
600	600	There are two kinds of Commands:
601		-)))
602	602
603		-* (((
604		-(% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
605		-)))
	498	+* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
606	606
607		-* (((
608		-(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
609		-)))
	500	+* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
610	610
611		-(((
612		-
613		-)))
614		-
615		-
616		-
617	617	=== 3.5.1 Common Commands ===
618	618
619		-
620	620	They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
621	621
622	622
	507	+=== 3.5.2 Sensor related commands ===
623	623
624		-=== 3.5.2 Downlink Response(Since firmware v1.4) ===
625		-
626		-
627	627	Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
628	628
629		-(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]](% title="Click and drag to resize" %)​
	511	+[[image:image-20220602163333-5.png||height="263" width="1160"]]
630	630
631	631	The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
632	632
633	633
634		-
635	635	=== 3.5.3 Sensor related commands ===
636	636
	518	+==== ====
637	637
	520	+==== **RS485 Debug Command** ====
638	638
	522	+This command is used to configure the RS485 devices; they won’t be used during sampling.
639	639
640		-==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	524	+* **AT Command**
641	641
642		-
	526	+(% class="box infomessage" %)
643	643	(((
644		-This command is used to configure the RS485 devices; they won't be used during sampling.
	528	+**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
645	645	)))
646	646
647		-* (((
648		-(% style="color:#037691" %)**AT Command**
	531	+m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
649	649
650		-(((
651		-**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
652		-)))
653		-)))
	533	+* **Downlink Payload**
654	654
655		-(((
656		-
657		-)))
658		-
659		-* (((
660		-(% style="color:#037691" %)**Downlink Payload**
661		-)))
662		-
663		-(((
664	664	Format: A8 MM NN XX XX XX XX YY
665		-)))
666	666
667		-(((
668	668	Where:
669		-)))
670	670
671		-* (((
672		-MM: 1: add CRC-16/MODBUS ; 0: no CRC
673		-)))
674		-* (((
675		-NN: The length of RS485 command
676		-)))
677		-* (((
678		-XX XX XX XX: RS485 command total NN bytes
679		-)))
680		-* (((
681		-(((
682		-YY: How many bytes will be uplink from the return of this RS485 command,
683		-)))
	539	+* MM: 1: add CRC-16/MODBUS ; 0: no CRC
	540	+* NN: The length of RS485 command
	541	+* XX XX XX XX: RS485 command total NN bytes
	542	+* YY: How many bytes will be uplink from the return of this RS485 command,
	543	+** if YY=0, RS485-LN will execute the downlink command without uplink;
	544	+** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	545	+** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
684	684
685		-* (((
686		-if YY=0, RS485-LN will execute the downlink command without uplink;
687		-)))
688		-* (((
689		-if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
690		-)))
691		-* (((
692		-if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
693		-)))
694		-)))
	547	+**Example 1** ~-~-> Configure without ask for uplink (YY=0)
695	695
696		-(((
697		-
698		-
699		-(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
700		-)))
701		-
702		-(((
703	703	To connect a Modbus Alarm with below commands.
704		-)))
705	705
706		-* (((
707		-The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
708		-)))
	551	+* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
709	709
710		-* (((
711		-The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
712		-)))
	553	+* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
713	713
714		-(((
715		-
716		-
717	717	So if user want to use downlink command to control to RS485 Alarm, he can use:
718		-)))
719	719
720		-(((
721	721	(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
722		-)))
723	723
724		-(((
725	725	(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
726		-)))
727	727
728		-(((
729	729	A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
730		-)))
731	731
732		-(((
733		-
734		-)))
735	735
736		-(((
737		-(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
738		-)))
	564	+**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
739	739
740		-(((
741	741	User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
742		-)))
743	743
744		-(((
745		-
746		-)))
747	747
748		-(((
749		-(((
750		-RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
751		-)))
	569	+RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:
752	752
753		-
754		-)))
	571	+ **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
755	755
756		-(((
757		- (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
758		-)))
	573	+ [[image:1654159460680-153.png]]
759	759
760	760
761	761
	577	+==== **Set Payload version** ====
762	762
763		-==== (% style="color:blue" %)**Set Payload version**(%%) ====
	579	+This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
764	764
	581	+* **AT Command:**
765	765
	583	+(% class="box infomessage" %)
766	766	(((
767		-This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
	585	+**AT+PAYVER: Set PAYVER field = 1**
768	768	)))
769	769
770		-* (((
771		-(% style="color:#037691" %)**AT Command:**
772	772
773		-**AT+PAYVER:    **Set PAYVER field = 1
	589	+* **Downlink Payload:**
774	774
775		-
776		-)))
777		-* (((
778		-(% style="color:#037691" %)**Downlink Payload:**
779		-)))
	591	+**0xAE 01**  ~-~-> Set PAYVER field =  0x01
780	780
781		-(((
782		-**0xAE 01**  ~-~->  Set PAYVER field =  0x01
783		-)))
	593	+**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
784	784
785		-(((
786		-**0xAE 0F**   ~-~->  Set PAYVER field =  0x0F
787		-)))
788	788
789	789
790		-1)Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)[[image:image-20220824145428-2.png||height="168" width="1300"]]
	597	+==== **Set RS485 Sampling Commands** ====
791	791
	599	+AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
792	792
793		-2)if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.
	601	+These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
794	794
795		-[[image:image-20220824145428-3.png||height="308" width="1200"]]
796	796
	604	+* **AT Command:**
797	797
798		-==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
799		-
800		-
	606	+(% class="box infomessage" %)
801	801	(((
802		-AT+COMMANDx or AT+DATACUTx
	608	+**AT+COMMANDx: Configure RS485 read command to sensor.**
803	803	)))
804	804
	611	+(% class="box infomessage" %)
805	805	(((
806		-These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
	613	+**AT+DATACUTx: Configure how to handle return from RS485 devices.**
807	807	)))
808	808
	616	+(% class="box infomessage" %)
809	809	(((
810		-
	618	+**AT+SEARCHx: Configure search command**
811	811	)))
812	812
813		-* (((
814		-(% style="color:#037691" %)**AT Command:**
815		-)))
816	816
817		-**AT+COMMANDx:    **Configure RS485 read command to sensor.
	622	+* **Downlink Payload:**
818	818
819		-**AT+DATACUTx:        **Configure how to handle return from RS485 devices.
820		-
821		-
822		-* (((
823		-(% style="color:#037691" %)**Downlink Payload:**
824		-)))
825		-
826		-(((
827	827	**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
828	828
829		-
830		-)))
831		-
832		-(((
833	833	(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
834	834
835		-
836		-)))
837		-
838		-(((
839	839	Format: AF MM NN LL XX XX XX XX YY
840		-)))
841	841
842		-(((
843	843	Where:
844		-)))
845	845
846		-* (((
847		-MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
848		-)))
849		-* (((
850		-NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
851		-)))
852		-* (((
853		-LL:  The length of AT+COMMAND or AT+DATACUT command
854		-)))
855		-* (((
856		-XX XX XX XX: AT+COMMAND or AT+DATACUT command
857		-)))
858		-* (((
859		-YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
860		-)))
	632	+* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	633	+* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	634	+* LL:  The length of AT+COMMAND or AT+DATACUT command
	635	+* XX XX XX XX: AT+COMMAND or AT+DATACUT command
	636	+* YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
861	861
862		-(((
863		-
864		-
865	865	**Example:**
866		-)))
867	867
868		-(((
869	869	(% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
870		-)))
871	871
872		-(((
873	873	(% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
874		-)))
875	875
876		-(((
877	877	(% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
878		-)))
879	879
880	880
	647	+**0xAB** downlink command can be used for set AT+SEARCHx
881	881
	649	+**Example:** **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
882	882
883		-==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
	651	+* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
	652	+* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
884	884
	654	+**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
885	885
886		-(((
887		-**AT+MBFUN** is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
888		-)))
889	889
890		-(((
891		-This command is valid since v1.3 firmware version
892		-)))
893	893
894		-(((
895		-AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
896		-)))
	658	+==== **Fast command to handle MODBUS device** ====
897	897
898		-(((
899		-
900		-)))
	660	+AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
901	901
902		-(((
903		-**Example:**
904		-)))
	662	+This command is valid since v1.3 firmware version
905	905
906		-* (((
907		-AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
908		-)))
909		-* (((
910		-AT+COMMAND1= 01 03 00 10 00 08,1  ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
911		-)))
912		-* (((
913		-AT+COMMAND2= 01 02 00 40 00 10,1  ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
914	914
915		-
916		-)))
	665	+**AT+MBFUN has only two value:**
917	917
918		-(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% title="Click and drag to resize" %)​
	667	+* **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return
919	919
920		-(% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
	669	+AT+MBFUN=1, device can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
921	921
	671	+* **AT+MBFUN=0**: Disable Modbus fast reading.
922	922
	673	+**Example:**
923	923
	675	+* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
	676	+* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
	677	+* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
924	924
925		-==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
	679	+[[image:1654133913295-597.png]]
926	926
927	927
928		-(((
929		-Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
930		-)))
	682	+[[image:1654133954153-643.png]]
931	931
932		-(((
933		-Default value: 0, range:  0 ~~ 65 seconds
934		-)))
935	935
936		-* (((
937		-(% style="color:#037691" %)** AT Command:**
	685	+* **Downlink Commands:**
938	938
939		-**AT+CMDDLaa=hex(bb cc)*1000**
940		-)))
	687	+**A9 aa** ~-~-> Same as AT+MBFUN=aa
941	941
942		-(((
943		-
944	944
945		-**Example:**
946		-)))
947	947
948		-(((
949		-**AT+CMDDL1=1000** to send the open time to 1000ms
950		-)))
	691	+==== **RS485 command timeout** ====
951	951
952		-(((
953		-
954		-)))
	693	+Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
955	955
956		-* (((
957		-(% style="color:#037691" %)** Downlink Payload:**
958		-)))
	695	+Default value: 0, range:  0 ~~ 5 seconds
959	959
960		-(((
961		-**0x AA aa bb cc**
962		-)))
963	963
	698	+* **AT Command:**
	699	+
	700	+(% class="box infomessage" %)
964	964	(((
965		-Same as: AT+CMDDLaa=hex(bb cc)*1000
	702	+**AT+CMDDLaa=hex(bb cc)**
966	966	)))
967	967
968		-(((
969	969	**Example:**
970		-)))
971	971
972		-(((
973		-**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
974		-)))
	707	+**AT+CMDDL1=1000** to send the open time to 1000ms
975	975
976	976
977		-==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
	710	+* **Downlink Payload:**
978	978
	712	+0x AA aa bb cc
979	979
980		-(((
981		-Define to use one uplink or multiple uplinks for the sampling.
982		-)))
	714	+Same as: AT+CMDDLaa=hex(bb cc)
983	983
984		-(((
985		-The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
	716	+ **Example:**
986	986
987		-
988		-)))
	718	+ **0xAA 01 03 E8**  ~-~-> Same as **AT+CMDDL1=1000 ms**
989	989
990		-* (((
991		-(% style="color:#037691" %)** AT Command:**
992	992
993		-**AT+DATAUP=0**
994	994
995		-**AT+DATAUP=1**
	722	+==== **Uplink payload mode** ====
996	996
997		-
998		-)))
	724	+Define to use one uplink or multiple uplinks for the sampling.
999	999
1000		-**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
	726	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
1001	1001
1002		-Each uplink is sent to the server at 20-second intervals when segmented.
	728	+* **AT Command:**
1003	1003
1004		-
1005		-* (((
1006		-(% style="color:#037691" %)** Downlink Payload:**
	730	+(% class="box infomessage" %)
	731	+(((
	732	+**AT+DATAUP=0**
1007	1007	)))
1008	1008
1009		-**0xAD 00**  **~-~->** Same as AT+DATAUP=0
1010		-
1011		-**0xAD 01**  **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
1012		-
1013		-
1014		-* (((
1015		-(% style="color:#037691" %)** AT Command:**
	735	+(% class="box infomessage" %)
	736	+(((
	737	+**AT+DATAUP=1**
1016	1016	)))
1017	1017
1018		-**AT+DATAUP=1,Timeout**
1019	1019
	741	+* **Downlink Payload:**
1020	1020
1021		-* (((
1022		-(% style="color:#037691" %)** Downlink Payload:**
1023		-)))
	743	+**0xAD 00**  **~-~->** Same as AT+DATAUP=0
1024	1024
1025		-**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
	745	+**0xAD 01**  **~-~->** Same as AT+DATAUP=1
1026	1026
1027		-Each uplink is sent to the server at 20-second intervals when segmented.
1028	1028
1029		-==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1030	1030
	749	+==== **Manually trigger an Uplink** ====
1031	1031
1032		-(((
1033	1033	Ask device to send an uplink immediately.
1034		-)))
1035	1035
1036		-* (((
1037		-(% style="color:#037691" %)** AT Command:**
1038		-)))
	753	+* **Downlink Payload:**
1039	1039
1040		-(((
1041		-No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1042		-)))
	755	+**0x08 FF**, RS485-BL will immediately send an uplink.
1043	1043
1044		-(((
1045		-
1046		-)))
1047	1047
1048		-* (((
1049		-(% style="color:#037691" %)** Downlink Payload:**
1050		-)))
1051	1051
1052		-(((
1053		-**0x08 FF**, RS485-LN will immediately send an uplink.
1054		-)))
	759	+==== **Clear RS485 Command** ====
1055	1055
1056		-
1057		-
1058		-
1059		-==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1060		-
1061		-
1062		-(((
1063	1063	The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1064	1064
1065		-
1066		-)))
1067	1067
1068		-* (((
1069		-(% style="color:#037691" %)** AT Command:**
1070		-)))
	764	+* **AT Command:**
1071	1071
1072		-(((
1073		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1074		-)))
	766	+(% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1075	1075
1076		-(((
1077		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1078		-)))
1079		-
1080		-(((
1081	1081	Example screen shot after clear all RS485 commands.
1082		-)))
1083	1083
1084		-(((
1085		-
1086		-)))
1087	1087
1088		-(((
1089	1089	The uplink screen shot is:
1090		-)))
1091	1091
1092		-(% aria-label="1654160691922-496.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654160691922-496.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	773	+[[image:1654134704555-320.png]]
1093	1093
1094	1094
1095		-* (((
1096		-(% style="color:#037691" %)** Downlink Payload:**
1097		-)))
	776	+* **Downlink Payload:**
1098	1098
1099		-(((
1100	1100	**0x09 aa bb** same as AT+CMDEAR=aa,bb
1101		-)))
1102	1102
1103	1103
1104	1104
	782	+==== **Set Serial Communication Parameters** ====
1105	1105
1106		-==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
1107		-
1108		-
1109		-(((
1110	1110	Set the Rs485 serial communication parameters:
1111	1111
1112		-
1113		-)))
	786	+* **AT Command:**
1114	1114
1115		-* (((
1116		-(% style="color:#037691" %)** AT Command:**
1117		-)))
	788	+Set Baud Rate:
1118	1118
	790	+(% class="box infomessage" %)
1119	1119	(((
1120		-* Set Baud Rate
	792	+**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1121	1121	)))
1122	1122
1123		-**AT+BAUDR=9600**    ~/~/ Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
	795	+Set UART Parity
1124	1124
1125		-
	797	+(% class="box infomessage" %)
1126	1126	(((
1127		-* Set UART Parity
	799	+**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1128	1128	)))
1129	1129
1130		-**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	802	+Set STOPBIT
1131	1131
1132		-
	804	+(% class="box infomessage" %)
1133	1133	(((
1134		-* Set STOPBIT
	806	+**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1135	1135	)))
1136	1136
1137		-**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1138	1138
	810	+* **Downlink Payload:**
1139	1139
	812	+**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1140	1140
1141		-* (((
1142		-(% style="color:#037691" %)** Downlink Payload:**
1143		-)))
1144		-
1145		-(((
1146		-**A7 01 aa bb**:  Same  AT+BAUDR=hex(aa bb)*100
1147		-)))
1148		-
1149		-(((
1150	1150	**Example:**
1151		-)))
1152	1152
1153		-* (((
1154		-A7 01 00 60   same as AT+BAUDR=9600
1155		-)))
1156		-* (((
1157		-A7 01 04 80  same as AT+BAUDR=115200
1158		-)))
	816	+* A7 01 00 60   same as AT+BAUDR=9600
	817	+* A7 01 04 80  same as AT+BAUDR=115200
1159	1159
1160		-(((
1161		-A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1162		-)))
	819	+A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1163	1163
1164		-(((
1165		-A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1166		-)))
	821	+A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1167	1167
1168	1168
1169		-==== (% style="color:blue" %)**Encrypted payload**(%%) ====
1170	1170
1171		-(((
1172		-
1173		-)))
	825	+==== **Control output power duration** ====
1174	1174
1175		-* (((
1176		-(% style="color:#037691" %)** AT Command:**
1177		-)))
	827	+User can set the output power duration before each sampling.
1178	1178
1179		-**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
	829	+* **AT Command:**
1180	1180
1181		-**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
	831	+**Example:**
1182	1182
	833	+**AT+3V3T=1000**  ~/~/ 3V3 output power will open 1s before each sampling.
1183	1183
1184		-==== (% style="color:blue" %)**Get sensor value**(%%) ====
	835	+**AT+5VT=1000**  ~/~/ +5V output power will open 1s before each sampling.
1185	1185
1186	1186
1187		-* (((
1188		-(% style="color:#037691" %)** AT Command:**
1189		-)))
	838	+* **LoRaWAN Downlink Command:**
1190	1190
1191		-**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
	840	+**07 01 aa bb**  Same as AT+5VT=(aa bb)
1192	1192
1193		-**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
1194		-
1195		-
1196		-==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
1197		-
1198		-
1199		-* (((
1200		-(% style="color:#037691" %)** AT Command:**
1201		-)))
1202		-
1203		-**AT+DISFCNTCHECK=0  **~/~/ When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1204		-
1205		-**AT+DISFCNTCHECK=1  **~/~/When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
1206		-
1207		-
1208		-==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
1209		-
1210		-
1211		-* (((
1212		-(% style="color:#037691" %)** AT Command:**
1213		-)))
1214		-
1215		- **AT+DISMACANS=0**  ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1216		-
1217		- **AT+DISMACANS=1**      ~/~/ When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1218		-
1219		-
1220		-* (((
1221		-(% style="color:#037691" %)** Downlink Payload:**
1222		-)))
1223		-
1224		-**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
1225		-
1226		-
1227		-==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
1228		-
1229		-
1230		-* (((
1231		-(% style="color:#037691" %)** AT Command:**
1232		-)))
1233		-
1234		-**AT+RPL=5**  ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1235		-
1236		-Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1237		-
1238		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1239		-
1240		-For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1241		-
1242		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1243		-
1244		-For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1245		-
1246		-
1247		-==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
1248		-
1249		-
1250		-* (((
1251		-(% style="color:#037691" %)**Downlink Payload:**
1252		-
1253		-**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1254		-)))
1255		-
1256		-Example：
1257		-
1258		-[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1259		-
1260		-==== ====
1261		-
1262		-==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
1263		-
1264		-
1265		-* (((
1266		-(% style="color:#037691" %)** AT Command:**
1267		-)))
1268		-
1269		-**~ ​AT+RXMODE=1,10**  ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
1270		-
1271		-**~ ​AT+RXMODE=2,500    ** ~/~/RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
1272		-
1273		- **AT+RXMODE=0,0  ** ~/~/Disable this mode (default)
1274		-
1275		-
1276		-* (((
1277		-(% style="color:#037691" %)**Downlink Payload:**
1278		-)))
1279		-
1280		-**A6 aa bb bb                   ** ~/~/same as AT+RXMODE=aa,bb
1281		-
1282		-[[image:image-20220824144240-1.png]]
1283		-
1284		-
1285		-
1286		-== 3.6 Listening mode for RS485 network ==
1287		-
1288		-
1289		-(((
1290		-This feature support since firmware v1.4
1291		-)))
1292		-
1293		-(((
1294		-RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
1295		-
1296		-
1297		-)))
1298		-
1299		-(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1300		-
1301		-(((
1302		-To enable the listening mode, use can run the command AT+RXMODE.
1303		-)))
1304		-
1305		-(((
1306		-
1307		-)))
1308		-
1309		-(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1310		-|=(% style="width: 100px;" %)(((
1311		-**Command example**
1312		-)))|=(% style="width: 400px;" %)(((
1313		-**Function**
1314		-)))
1315		-|(% style="width:100px" %)(((
1316		-AT+RXMODE=1,10
1317		-)))|(% style="width:400px" %)(((
1318		-Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
1319		-)))
1320		-|(% style="width:100px" %)(((
1321		-AT+RXMODE=2,500
1322		-)))|(% style="width:400px" %)(((
1323		-Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
1324		-)))
1325		-|(% style="width:100px" %)(((
1326		-AT+RXMODE=0,0
1327		-)))|(% style="width:400px" %)(((
1328		-Disable listening mode. This is the default settings.
1329		-)))
1330		-|(% style="width:100px" %)(((
1331		-
1332		-)))|(% style="width:400px" %)(((
1333		-A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1334		-)))
1335		-
1336		-(((
1337		-(% style="color:#037691" %)** Downlink Command:**
1338		-)))
1339		-
1340		-(((
1341		-**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1342		-)))
1343		-
1344		-(((
1345		-
1346		-)))
1347		-
1348		-(((
1349		-**Example**:
1350		-)))
1351		-
1352		-(((
1353		-The RS485-LN is set to AT+RXMODE=2,1000
1354		-)))
1355		-
1356		-(((
1357		-There is a two Modbus commands in the RS485 network as below:
1358		-)))
1359		-
1360		-(((
1361		-The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1362		-)))
1363		-
1364		-(((
1365		-And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1366		-)))
1367		-
1368		-(((
1369		-RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1370		-)))
1371		-
1372		-(((
1373		-(% aria-label="image-20220602171200-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-9.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1374		-)))
1375		-
1376		-(((
1377		-
1378		-)))
1379		-
1380		-(((
1381		-(((
1382		-(% style="color:red" %)**Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.**
1383		-)))
1384		-)))
1385		-
1386		-
1387		-
1388		-== 3.7 Buttons ==
1389		-
1390		-
1391		-(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1392		-|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1393		-|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1394		-|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1395		-|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1396		-
1397		-== 3.8 LEDs ==
1398		-
1399		-
1400		-(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1401		-|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1402		-|**PWR**|Always on if there is power
1403		-|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
1404		-
1405		-= 4. Case Study =
1406		-
1407		-
1408		-User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
1409		-
1410		-
1411		-
1412		-= 5. Use AT Command =
1413		-
1414		-
1415		-== 5.1 Access AT Command ==
1416		-
1417		-
1418		-(((
1419		-RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
1420		-)))
1421		-
1422		-(% aria-label="1654162355560-817.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162355560-817.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1423		-
1424		-
1425		-(((
1426		-In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
1427		-)))
1428		-
1429		-(% aria-label="1654162368066-342.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162368066-342.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1430		-
1431		-
1432		-(((
1433		-More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
1434		-)))
1435		-
1436		-
1437		-
1438		-== 5.2 Common AT Command Sequence ==
1439		-
1440		-
1441		-=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1442		-
1443		-
1444		-If device has not joined network yet:
1445		-
1446		-* (% style="color:#037691" %)**AT+FDR**
1447		-* (% style="color:#037691" %)**AT+NJM=0**
1448		-* (% style="color:#037691" %)**ATZ**
1449		-
1450		-(((
1451		-
1452		-
1453		-If device already joined network:
1454		-
1455		-* (% style="color:#037691" %)**AT+NJM=0**
1456		-* (% style="color:#037691" %)**ATZ**
1457		-
1458		-
1459		-)))
1460		-
1461		-
1462		-
1463		-=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1464		-
1465		-
1466		-(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1467		-
1468		-(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1469		-
1470		-(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1471		-
1472		-(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1473		-
1474		-(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1475		-
1476		-(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1477		-
1478		-(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1479		-
1480		-(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1481		-
1482		-(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1483		-
1484		-(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1485		-
1486		-
1487		-(% style="color:red" %)**Note:**
1488		-
1489		-(((
1490		-(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1491		-2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1492		-3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
1493		-4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1494		-
1495		-
1496		-)))
1497		-
1498		-(% aria-label="1654162478620-421.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162478620-421.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1499		-
1500		-
1501		-
1502		-= 6. FAQ =
1503		-
1504		-
1505		-== 6.1 How to upgrade the image? ==
1506		-
1507		-
1508		-(((
1509		-The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1510		-)))
1511		-
1512		-* (((
1513		-Support new features
1514		-)))
1515		-* (((
1516		-For bug fix
1517		-)))
1518		-* (((
1519		-Change LoRaWAN bands.
1520		-)))
1521		-
1522		-(((
1523		-Below shows the hardware connection for how to upload an image to RS485-LN:
1524		-)))
1525		-
1526		-(% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
1527		-
1528		-(% title="Click and drag to resize" %)​
1529		-
1530		-(((
1531		-(% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1532		-)))
1533		-
1534		-(((
1535		-(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]].
1536		-)))
1537		-
1538		-(((
1539		-(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1540		-)))
1541		-
1542		-(((
1543		-(((
1544		-(((
1545		-(% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
1546		-)))
1547		-)))
1548		-)))
1549		-
1550		-
1551		-(% aria-label="image-20220602175818-12.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175818-12.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1552		-
1553		-
1554		-(% aria-label="image-20220602175848-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175848-13.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1555		-
1556		-
1557		-(% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1558		-
1559		-
1560		-(% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1561		-
1562		-(% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1563		-
1564		-
1565		-
1566		-== 6.2 How to change the LoRa Frequency Bands/Region? ==
1567		-
1568		-
1569		-User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1570		-
1571		-
1572		-
1573		-== 6.3 How many RS485-Slave can RS485-LN connects? ==
1574		-
1575		-
1576		-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"]].
1577		-
1578		-
1579		-
1580		-== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1581		-
1582		-
1583		-When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1584		-
1585		-Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1586		-
1587		-
1588		-
1589		-== 6.5 Can i use point to point communication for RS485-LN? ==
1590		-
1591		-
1592		-Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1593		-
1594		-
1595		-
1596		-== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1597		-
1598		-
1599		-[[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1600		-
1601		-
1602		-
1603		-= 7. Trouble Shooting =
1604		-
1605		-
1606		-== 7.1 Downlink doesn't work, how to solve it? ==
1607		-
1608		-
1609		-Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1610		-
1611		-
1612		-
1613		-== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1614		-
1615		-
1616		-It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1617		-
1618		-
1619		-
1620		-= 8. Order Info =
1621		-
1622		-
1623		-(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1624		-
1625		-(% style="color:blue" %)**XXX:**
1626		-
1627		-* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1628		-* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1629		-* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1630		-* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1631		-* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1632		-* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1633		-* (% style="color:red" %)**US915**(%%):  frequency bands US915
1634		-* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1635		-* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1636		-* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1637		-
1638		-= 9.Packing Info =
1639		-
1640		-
1641		-**Package Includes**:
1642		-
1643		-* RS485-LN x 1
1644		-* Stick Antenna for LoRa RF part x 1
1645		-* Program cable x 1
1646		-
1647		-**Dimension and weight**:
1648		-
1649		-* Device Size: 13.5 x 7 x 3 cm
1650		-* Device Weight: 105g
1651		-* Package Size / pcs : 14.5 x 8 x 5 cm
1652		-* Weight / pcs : 170g
1653		-
1654		-= 10. FCC Caution for RS485LN-US915 =
1655		-
1656		-
1657		-(((
1658		-Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1659		-)))
1660		-
1661		-(((
1662		-This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
1663		-)))
1664		-
1665		-(((
1666		-
1667		-)))
1668		-
1669		-(((
1670		-(% style="color:red" %)**IMPORTANT NOTE:**
1671		-)))
1672		-
1673		-(((
1674		-(% style="color:red" %)**Note: **(%%)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1675		-)))
1676		-
1677		-(((
1678		-—Reorient or relocate the receiving antenna.
1679		-)))
1680		-
1681		-(((
1682		-—Increase the separation between the equipment and receiver.
1683		-)))
1684		-
1685		-(((
1686		-—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1687		-)))
1688		-
1689		-(((
1690		-—Consult the dealer or an experienced radio/TV technician for help.
1691		-)))
1692		-
1693		-(((
1694		-
1695		-)))
1696		-
1697		-(((
1698		-(% style="color:red" %)**FCC Radiation Exposure Statement:**
1699		-)))
1700		-
1701		-(((
1702		-This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
1703		-)))
1704		-
1705		-
1706		-
1707		-= 11. Support =
1708		-
1709		-
1710		-* (((
1711		-Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
1712		-)))
1713		-* (((
1714		-Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
1715		-
1716		-
1717		-
1718		-)))
	842	+**07 02 aa bb**  Same as AT+3V3T=(aa bb)

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