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

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Title

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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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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	)))
68		-)))
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
...	...	@@ -82,12 +82,12 @@
82	82	** Idle: 32mA@12v
83	83	** 20dB Transmit: 65mA@12v
84	84
85		-(% style="color:#037691" %)**Interface for Model:**
	53	+**Interface for Model:**
86	86
87	87	* RS485
88	88	* Power Input 7~~ 24V DC.
89	89
90		-(% style="color:#037691" %)**LoRa Spec:**
	58	+**LoRa Spec:**
91	91
92	92	* Frequency Range:
93	93	** Band 1 (HF): 862 ~~ 1020 Mhz
...	...	@@ -106,15 +106,14 @@
106	106	* Preamble detection.
107	107	* 127 dB Dynamic Range RSSI.
108	108	* Automatic RF Sense and CAD with ultra-fast AFC.
109		-* Packet engine up to 256 bytes with CRC
	77	+* Packet engine up to 256 bytes with CRC.
110	110
111	111
112	112
113	113	== 1.3 Features ==
114	114
115		-
116	116	* LoRaWAN Class A & Class C protocol (default Class C)
117		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
	84	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
118	118	* AT Commands to change parameters
119	119	* Remote configure parameters via LoRa Downlink
120	120	* Firmware upgradable via program port
...	...	@@ -126,7 +126,6 @@
126	126
127	127	== 1.4 Applications ==
128	128
129		-
130	130	* Smart Buildings & Home Automation
131	131	* Logistics and Supply Chain Management
132	132	* Smart Metering
...	...	@@ -138,25 +138,17 @@
138	138
139	139	== 1.5 Firmware Change log ==
140	140
141		-
142	142	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
143	143
144	144
145		-
146	146	== 1.6 Hardware Change log ==
147	147
148		-
149	149	(((
150	150	(((
151		-(((
152	152	v1.2: Add External Interrupt Pin.
153		-)))
154	154
155		-(((
156	156	v1.0: Release
157		-)))
158	158
159		-
160	160
161	161	)))
162	162	)))
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163	163
164	164	= 2. Power ON Device =
165	165
166		-
167	167	(((
168	168	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
169	169
...	...	@@ -174,36 +174,28 @@
174	174	Once there is power, the RS485-LN will be on.
175	175	)))
176	176
177		-(% 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" %)​
	134	+[[image:1653268091319-405.png]]
178	178
179		-
180	180
181	181	)))
182	182
183	183	= 3. Operation Mode =
184	184
185		-
186	186	== 3.1 How it works? ==
187	187
188		-
189	189	(((
190		-(((
191	191	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.
192		-)))
193	193
194		-
195	195
196	196	)))
197	197
198	198	== 3.2 Example to join LoRaWAN network ==
199	199
200		-
201	201	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.
202	202
	153	+[[image:1653268155545-638.png||height="334" width="724"]]
203	203
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205	205
206		-
207	207	(((
208	208	(((
209	209	The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
...	...	@@ -211,21 +211,16 @@
211	211
212	212	(((
213	213	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
214		-
215		-
216	216	)))
217	217
218		-(% 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" %)​
	165	+[[image:1653268227651-549.png||height="592" width="720"]]
219	219
220		-
221	221	(((
222		-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:
223		-
224		-
	168	+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:
225	225	)))
226	226
227	227	(((
228		-(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
	172	+**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
229	229	)))
230	230
231	231	(((
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233	233	)))
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	180	+[[image:1652953462722-299.png]]
237	237
238		-
239	239	(((
240	240	(((
241	241	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
242		-
243		-
244	244	)))
245	245
246	246	(((
247		-**Add APP EUI in the application.**
	188	+Add APP EUI in the application.
248	248	)))
249	249	)))
250	250
251		-(% 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" %)​
	192	+[[image:image-20220519174512-1.png]]
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	194	+[[image:image-20220519174512-2.png||height="323" width="720"]]
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	196	+[[image:image-20220519174512-3.png||height="556" width="724"]]
256	256
257		-(% 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"]]
	198	+[[image:image-20220519174512-4.png]]
258	258
259		-
260		-(% title="Click and drag to resize" %)​
261		-
262	262	You can also choose to create the device manually.
263	263
264		-(% 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" %)​
	202	+[[image:1652953542269-423.png||height="710" width="723"]]
265	265
	204	+Add APP KEY and DEV EUI
266	266
	206	+[[image:1652953553383-907.png||height="514" width="724"]]
267	267
268		-**Add APP KEY and DEV EUI**
269	269
270		-(% 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" %)​
271		-
272		-
273		-
274	274	(((
275		-(% 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.
276		-
277		-
	210	+**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.
278	278	)))
279	279
280		-(% 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" %)​
	213	+[[image:1652953568895-172.png||height="232" width="724"]]
281	281
282	282
283		-
284	284	== 3.3 Configure Commands to read data ==
285	285
286		-
287	287	(((
288	288	(((
289		-(((
290		-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.
291		-
292		-
	220	+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.
293	293	)))
294		-)))
295	295
296	296	(((
297		-(((
298		-(% 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**
299		-)))
	224	+(% 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
300	300
301		-
302	302
303	303	)))
304	304	)))
305	305
306		-=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
	230	+=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
307	307
308		-
309	309	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:
310	310
311		-
312		-(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
313		-|=(% style="width: 110px;" %)(((
	234	+(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
	235	+|(% style="width:128px" %)(((
314	314	**AT Commands**
315		-)))|=(% style="width: 190px;" %)(((
	237	+)))|(% style="width:305px" %)(((
316	316	**Description**
317		-)))|=(% style="width: 190px;" %)(((
	239	+)))|(% style="width:346px" %)(((
318	318	**Example**
319	319	)))
320		-|(% style="width:110px" %)(((
	242	+|(% style="width:128px" %)(((
321	321	AT+BAUDR
322		-)))|(% style="width:190px" %)(((
	244	+)))|(% style="width:305px" %)(((
323	323	Set the baud rate (for RS485 connection). Default Value is: 9600.
324		-)))|(% style="width:190px" %)(((
	246	+)))|(% style="width:346px" %)(((
325	325	(((
326	326	AT+BAUDR=9600
327	327	)))
...	...	@@ -330,11 +330,11 @@
330	330	Options: (1200,2400,4800,14400,19200,115200)
331	331	)))
332	332	)))
333		-|(% style="width:110px" %)(((
	255	+|(% style="width:128px" %)(((
334	334	AT+PARITY
335		-)))|(% style="width:190px" %)(((
	257	+)))|(% style="width:305px" %)(((
336	336	Set UART parity (for RS485 connection)
337		-)))|(% style="width:190px" %)(((
	259	+)))|(% style="width:346px" %)(((
338	338	(((
339	339	AT+PARITY=0
340	340	)))
...	...	@@ -343,9 +343,9 @@
343	343	Option: 0: no parity, 1: odd parity, 2: even parity
344	344	)))
345	345	)))
346		-|(% style="width:110px" %)(((
	268	+|(% style="width:128px" %)(((
347	347	AT+STOPBIT
348		-)))|(% style="width:190px" %)(((
	270	+)))|(% style="width:305px" %)(((
349	349	(((
350	350	Set serial stopbit (for RS485 connection)
351	351	)))
...	...	@@ -353,7 +353,7 @@
353	353	(((
354	354
355	355	)))
356		-)))|(% style="width:190px" %)(((
	278	+)))|(% style="width:346px" %)(((
357	357	(((
358	358	AT+STOPBIT=0 for 1bit
359	359	)))
...	...	@@ -371,1373 +371,906 @@
371	371
372	372	=== 3.3.2 Configure sensors ===
373	373
374		-
375	375	(((
376	376	(((
377		-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.
378		-
379		-
	298	+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.
380	380	)))
381	381	)))
382	382
383		-(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
384		-|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
385		-|AT+CFGDEV|(% style="width:110px" %)(((
386		-(((
	302	+(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
	303	+|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
	304	+|AT+CFGDEV|(% style="width:418px" %)(((
387	387	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
388		-)))
389	389
390		-(((
391	391	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
392		-)))
393	393
394		-(((
395	395	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
396		-)))
397		-)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	310	+)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
398	398
399	399
400	400
401	401	=== 3.3.3 Configure read commands for each sampling ===
402	402
403		-
404	404	(((
405		-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.
406		-
407		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
408		-
409		-This section describes how to achieve above goals.
410		-
411		-During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
412		-
413		-
414		-(% style="color:#037691" %)**Each RS485 commands include two parts:**
415		-
416		-
417		-~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.
418		-
419		-2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
420		-
421		-3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
422		-
423		-
424		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
425		-
426		-Below are examples for the how above AT Commands works.
427		-
428		-
429		-(% 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:
430		-
431		-(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
432		-|(% style="width:496px" %)(((
433		-(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
434		-
435		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
436		-
437		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	317	+RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
438	438	)))
439	439
440		-For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
441		-
442		-In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
443		-
444		-
445		-(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
446		-
447		-(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
448		-|(% style="width:510px" %)(((
449		-**AT+DATACUTx=a,b,c**
450		-
451		-* **a: length for the return of AT+COMMAND**
452		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
453		-* **c: define the position for valid value.  **
	320	+(((
	321	+During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
454	454	)))
455	455
456		-**Examples:**
457		-
458		-
459		-* (% style="color:#037691" %)**Grab bytes**
460		-
461		-(% 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" %)​
462		-
463		-
464		-
465		-* (% style="color:#037691" %)**Grab a section**
466		-
467		-(% 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" %)​
468		-
469		-
470		-
471		-* (% style="color:#037691" %)**Grab different sections**
472		-
473		-(% 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" %)​
474		-
475		-
476		-
477		-)))
478		-
479		-=== 3.3.4 Compose the uplink payload ===
480		-
481		-
482	482	(((
483		-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.**
484		-
485		-
	325	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
486	486	)))
487	487
488	488	(((
489		-(% style="color:#037691" %)**Examples: AT+DATAUP=0**
490		-
491		-
	329	+This section describes how to achieve above goals.
492	492	)))
493	493
494	494	(((
495		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	333	+During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
496	496	)))
497	497
498	498	(((
499		-Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	337	+**Command from RS485-BL to Sensor:**
500	500	)))
501	501
502	502	(((
503		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
504		-
505		-
	341	+RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
506	506	)))
507	507
508		-[[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
509		-
510		-
511		-(% style="color:#037691" %)**Examples: AT+DATAUP=1**
512		-
513		-
514		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
515		-
516		-Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
517		-
518		-
519		-1. PAYVER: Defined by AT+PAYVER
520		-1. PAYLOAD COUNT: Total how many uplinks of this sampling.
521		-1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
522		-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
523		-
524		-(% 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" %)​
525		-
526		-
527		-So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
528		-
529		-DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
530		-
531		-DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
532		-
533		-DATA3=the rest of Valid value of RETURN10= **30**
534		-
535		-
536		-(% 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:**
537		-
538		-
539		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
540		-
541		- * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
542		-
543		- * For US915 band, max 11 bytes for each uplink.
544		-
545		- ~* For all other bands: max 51 bytes for each uplink.
546		-
547		-
548		-(% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
549		-
550		-(% 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)**
551		-
552		-
553		-
554		-Below are the uplink payloads:
555		-
556		-
557		-(% 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" %)​
558		-
559		-
560		-
561		-=== 3.3.5 Uplink on demand ===
562		-
563		-
564		-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.
565		-
566		-(% style="color:blue" %)**Downlink control command:**
567		-
568		-(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
569		-
570		-(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
571		-
572		-
573		-
574		-=== 3.3.6 Uplink on Interrupt ===
575		-
576		-
577		-RS485-LN support external Interrupt uplink since hardware v1.2 release.
578		-
579		-
580		-(% 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" %)​
581		-
582		-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.
583		-
584		-
585		-
586		-== 3.4 Uplink Payload ==
587		-
588		-
589		-(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:520px" %)
590		-|(% style="width:90px" %)(((
591		-Size(bytes)
592		-)))|(% style="width:114px" %)1|(% style="width:353px" %)(((
593		-Length depends on the return from the commands
594		-)))
595		-|(% style="width:90px" %)(((
596		-Value
597		-)))|(% style="width:114px" %)(((
598		-PAYLOAD_VER
599		-)))|(% style="width:353px" %)(((
600		-If the valid payload is too long and exceed the maximum
601		-
602		-support payload length in server, server will show payload not
603		-
604		-provided in the LoRaWAN server.
605		-)))
606		-
607		-(% 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"]]
608		-
609		-(% title="Click and drag to resize" %)​
610		-
611		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
612		-
613		-
614		-
615		-== 3.5 Configure RS485-LN via AT or Downlink ==
616		-
617		-
618	618	(((
619		-User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
	345	+**Handle return from sensors to RS485-BL**:
620	620	)))
621	621
622	622	(((
623		-There are two kinds of Commands:
	349	+After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
624	624	)))
625	625
626	626	* (((
627		-(% 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]]
	353	+**AT+DATACUT**
628	628	)))
629	629
630		-* (((
631		-(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
632		-)))
633		-
634	634	(((
635		-
	357	+When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
636	636	)))
637	637
638		-
639		-
640		-=== 3.5.1 Common Commands ===
641		-
642		-
643		-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]]
644		-
645		-
646		-
647		-=== 3.5.2 Downlink Response(Since firmware v1.4) ===
648		-
649		-
650		-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.
651		-
652		-
653		-(% 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"]]
654		-
655		-(% title="Click and drag to resize" %)​
656		-
657		-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)
658		-
659		-
660		-
661		-=== 3.5.3 Sensor related commands ===
662		-
663		-
664		-
665		-
666		-==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
667		-
668		-
669		-(((
670		-This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
671		-)))
672		-
673		-(((
674		-* (% style="color:#037691" %)**AT Command**
675		-
676		-(((
677		-(% style="color:#4472c4" %)** 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
678		-)))
679		-)))
680		-
681		-(((
682		-
683		-)))
684		-
685	685	* (((
686		-(% style="color:#037691" %)**Downlink Payload**
	361	+**AT+SEARCH**
687	687	)))
688	688
689	689	(((
690		-Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
	365	+When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
691	691	)))
692	692
693	693	(((
694		-Where:
	369	+**Define wait timeout:**
695	695	)))
696	696
697		-* (((
698		-MM: 1: add CRC-16/MODBUS ; 0: no CRC
699		-)))
700		-* (((
701		-NN: The length of RS485 command
702		-)))
703		-* (((
704		-XX XX XX XX: RS485 command total NN bytes
705		-)))
706		-* (((
707	707	(((
708		-YY: How many bytes will be uplink from the return of this RS485 command,
	373	+Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
709	709	)))
710	710
711		-* (((
712		-if YY=0, RS485-LN will execute the downlink command without uplink;
713		-)))
714		-* (((
715		-if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
716		-)))
717		-* (((
718		-if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
719		-)))
720		-)))
721		-
722	722	(((
723		-
724		-
725		-(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	377	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
726	726	)))
727	727
728		-(((
729		-To connect a Modbus Alarm with below commands.
730		-)))
	380	+**Examples:**
731	731
732		-* (((
733		-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.
734		-)))
	382	+Below are examples for the how above AT Commands works.
735	735
736		-* (((
737		-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.
738		-)))
	384	+**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
739	739
740		-(((
741		-
	386	+(% border="1" class="table-bordered" %)
	387	+|(((
	388	+**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
742	742
743		-So if user want to use downlink command to control to RS485 Alarm, he can use:
744		-)))
	390	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
745	745
746		-(((
747		-(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
	392	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
748	748	)))
749	749
750	750	(((
751		-(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
	396	+For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
752	752	)))
753	753
754	754	(((
755		-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.
	400	+In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
756	756	)))
757	757
758	758	(((
759		-
	404	+**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
760	760	)))
761	761
762		-(((
763		-(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
764		-)))
	407	+(% border="1" class="table-bordered" %)
	408	+|(((
	409	+**AT+SEARCHx=aa,xx xx xx xx xx**
765	765
766		-(((
767		-User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
768		-)))
	411	+* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
	412	+* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
769	769
770		-(((
771	771
772	772	)))
773	773
774		-(((
775		-(((
776		-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**
777		-)))
	417	+**Examples:**
778	778
779		-
780		-)))
	419	+~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
781	781
782		-(((
783		- (% 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" %)​
784		-)))
	421	+If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
785	785
	423	+The valid data will be all bytes after 1E 56 34 , so it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30 31 00 49**
786	786
	425	+[[image:1653269403619-508.png]]
787	787
	427	+2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
788	788
789		-==== (% style="color:blue" %)**Set Payload version**(%%) ====
	429	+If we set AT+SEARCH1=2, 1E 56 34+31 00 49
790	790
	431	+Device will search the bytes between 1E 56 34 and 31 00 49. So it is (% style="background-color:yellow" %)** 2e 30 58 5f 36 41 30**
791	791
792		-(((
793		-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.
794		-)))
	433	+[[image:1653269438444-278.png]]
795	795
796		-(((
797		-* (% style="color:#037691" %)**AT Command:**
	435	+**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
798	798
799		-(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
	437	+|(((
	438	+**AT+DATACUTx=a,b,c**
800	800
801		-
	440	+* **a: length for the return of AT+COMMAND**
	441	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	442	+* **c: define the position for valid value.  **
802	802	)))
803	803
804		-* (((
805		-(% style="color:#037691" %)**Downlink Payload:**
806		-)))
	445	+Examples:
807	807
808		-(((
809		-(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
810		-)))
	447	+* Grab bytes:
811	811
812		-(((
813		-(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
814		-)))
	449	+[[image:1653269551753-223.png||height="311" width="717"]]
815	815
	451	+* Grab a section.
816	816
817		-**1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
	453	+[[image:1653269568276-930.png||height="325" width="718"]]
818	818
	455	+* Grab different sections.
819	819
820		-[[image:image-20220824145428-2.png||height="168" width="1300"]]
	457	+[[image:1653269593172-426.png||height="303" width="725"]]
821	821
	459	+(% style="color:red" %)**Note:**
822	822
	461	+AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
823	823
824		-**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.**
	463	+Example:
825	825
	465	+(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
826	826
827		-[[image:image-20220824145428-3.png||height="308" width="1200"]]
	467	+(% style="color:red" %)AT+SEARCH1=1,1E 56 34
828	828
	469	+(% style="color:red" %)AT+DATACUT1=0,2,1~~5
829	829
	471	+(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
830	830
	473	+(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
831	831
832		-==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
	475	+(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
833	833
	477	+[[image:1653269618463-608.png]]
834	834
835		-(((
836		-AT+COMMANDx or AT+DATACUTx
837		-)))
	479	+=== 3.3.4 Compose the uplink payload ===
838	838
839	839	(((
840		-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"]].
	482	+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.**
841	841	)))
842	842
843	843	(((
844		-
	486	+(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
845	845	)))
846	846
847		-* (((
848		-(% style="color:#037691" %)**AT Command:**
849		-)))
850		-
851		-(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
852		-
853		-(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
854		-
855		-
856		-* (((
857		-(% style="color:#037691" %)**Downlink Payload:**
858		-)))
859		-
860	860	(((
861		-(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
862		-
863		-
	490	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
864	864	)))
865	865
866	866	(((
867		-(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
868		-
869		-
	494	+Final Payload is
870	870	)))
871	871
872	872	(((
873		-Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
	498	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
874	874	)))
875	875
876	876	(((
877		-Where:
	502	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
878	878	)))
879	879
880		-* (((
881		-MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
882		-)))
883		-* (((
884		-NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
885		-)))
886		-* (((
887		-LL:  The length of AT+COMMAND or AT+DATACUT command
888		-)))
889		-* (((
890		-XX XX XX XX: AT+COMMAND or AT+DATACUT command
891		-)))
892		-* (((
893		-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.
894		-)))
	505	+[[image:1653269759169-150.png||height="513" width="716"]]
895	895
896		-(((
897		-
	507	+(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
898	898
899		-**Example:**
900		-)))
	509	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
901	901
902		-(((
903		-(% 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
904		-)))
	511	+Final Payload is
905	905
906		-(((
907		-(% 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**
908		-)))
	513	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
909	909
910		-(((
911		-(% 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**
912		-)))
	515	+1. Battery Info (2 bytes): Battery voltage
	516	+1. PAYVER (1 byte): Defined by AT+PAYVER
	517	+1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
	518	+1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	519	+1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
913	913
	521	+[[image:1653269916228-732.png||height="433" width="711"]]
914	914
915	915
	524	+So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
916	916
917		-==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
	526	+DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
918	918
	528	+DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
919	919
920		-(((
921		-(% style="color:#4472c4" %)** 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]].
922		-)))
	530	+DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
923	923
924		-(((
925		-This command is valid since v1.3 firmware version
926		-)))
	532	+Below are the uplink payloads:
927	927
928		-(((
929		-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.
930		-)))
	534	+[[image:1653270130359-810.png]]
931	931
932		-(((
933		-
934		-)))
935	935
936		-(((
937		-**Example:**
938		-)))
	537	+(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
939	939
940		-* (((
941		-AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
942		-)))
943		-* (((
944		-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.
945		-)))
946		-* (((
947		-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.
	539	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
948	948
949		-
950		-)))
	541	+ * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
951	951
952		-(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
	543	+ * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
953	953
954		-(% title="Click and drag to resize" %)​
	545	+ ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
955	955
956		-(% 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" %)​
	547	+=== 3.3.5 Uplink on demand ===
957	957
	549	+Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
958	958
	551	+Downlink control command:
959	959
	553	+[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
960	960
961		-==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
	555	+[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
962	962
963	963
964		-(((
965		-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.
966		-)))
967	967
968		-(((
969		-Default value: 0, range:  0 ~~ 65 seconds
970		-)))
	559	+1.
	560	+11.
	561	+111. Uplink on Interrupt
971	971
972		-(((
973		-* (% style="color:#037691" %)** AT Command:**
	563	+Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
974	974
975		-(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
976		-)))
	565	+AT+INTMOD=0  Disable Interrupt
977	977
978		-(((
979		-
	567	+AT+INTMOD=1  Interrupt trigger by rising or falling edge.
980	980
981		-**Example:**
982		-)))
	569	+AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
983	983
984		-(((
985		-(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
986		-)))
	571	+AT+INTMOD=3  Interrupt trigger by rising edge.
987	987
988		-(((
989		-
990		-)))
991	991
992		-* (((
993		-(% style="color:#037691" %)** Downlink Payload:**
994		-)))
	574	+1.
	575	+11. Uplink Payload
995	995
996		-(((
997		-(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
998		-)))
	577	+|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
	578	+|Value|(((
	579	+Battery(mV)
999	999
1000		-(((
1001		-
	581	+&
1002	1002
1003		-**Example:**
1004		-)))
	583	+Interrupt _Flag
	584	+)))|(((
	585	+PAYLOAD_VER
1005	1005
1006		-(((
1007		-**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
1008		-)))
	587	+
	588	+)))|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.
1009	1009
	590	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
1010	1010
1011	1011
	593	+function Decoder(bytes, port) {
1012	1012
1013		-==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
	595	+~/~/Payload Formats of RS485-BL Deceive
1014	1014
	597	+return {
1015	1015
1016		-(((
1017		-Define to use one uplink or multiple uplinks for the sampling.
1018		-)))
	599	+ ~/~/Battery,units:V
1019	1019
1020		-(((
1021		-The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
	601	+ BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
1022	1022
1023		-
1024		-)))
	603	+ ~/~/GPIO_EXTI
1025	1025
1026		-(((
1027		-* (% style="color:#037691" %)** AT Command:**
	605	+ EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
1028	1028
1029		-(% style="color:#4472c4" %)** AT+DATAUP=0**
	607	+ ~/~/payload of version
1030	1030
1031		-(% style="color:#4472c4" %)** AT+DATAUP=1**
	609	+ Pay_ver:bytes[2],
1032	1032
1033		-
1034		-)))
	611	+ };
1035	1035
1036		-(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
	613	+ }
1037	1037
1038		-Each uplink is sent to the server at 20-second intervals when segmented.
1039	1039
1040	1040
1041		-* (((
1042		-(% style="color:#037691" %)** Downlink Payload:**
1043		-)))
1044	1044
1045		-(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
1046	1046
1047		-(% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
1048	1048
1049	1049
1050		-* (((
1051		-(% style="color:#037691" %)** AT Command:**
1052		-)))
	621	+TTN V3 uplink screen shot.
1053	1053
1054		-(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
	623	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1055	1055
	625	+1.
	626	+11. Configure RS485-BL via AT or Downlink
1056	1056
1057		-* (((
1058		-(% style="color:#037691" %)** Downlink Payload:**
1059		-)))
	628	+User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
1060	1060
1061		-(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
	630	+There are two kinds of Commands:
1062	1062
1063		-Each uplink is sent to the server at 20-second intervals when segmented.
	632	+* **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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
1064	1064
	634	+* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
1065	1065
	636	+1.
	637	+11.
	638	+111. Common Commands:
1066	1066
	640	+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: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
1067	1067
1068		-==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1069	1069
	643	+1.
	644	+11.
	645	+111. Sensor related commands:
1070	1070
1071		-(((
1072		-Ask device to send an uplink immediately.
1073		-)))
	647	+==== Choose Device Type (RS485 or TTL) ====
1074	1074
1075		-* (((
1076		-(% style="color:#037691" %)** AT Command:**
1077		-)))
	649	+RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
1078	1078
1079		-(((
1080		-No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1081		-)))
	651	+* AT Command
1082	1082
1083		-(((
1084		-
1085		-)))
	653	+**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
1086	1086
1087		-* (((
1088		-(% style="color:#037691" %)** Downlink Payload:**
1089		-)))
	655	+**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
1090	1090
1091		-(((
1092		-(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
1093		-)))
1094	1094
	658	+* Downlink Payload
1095	1095
	660	+**0A aa**     à same as AT+MOD=aa
1096	1096
1097	1097
1098		-==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1099	1099
	664	+==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
1100	1100
1101		-(((
1102		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	666	+This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
1103	1103
1104		-
1105		-)))
	668	+* AT Command
1106	1106
1107		-* (((
1108		-(% style="color:#037691" %)** AT Command:**
1109		-)))
	670	+AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
1110	1110
1111		-(((
1112		-(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
1113		-)))
	672	+m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
1114	1114
1115		-(((
1116		-
1117	1117
1118		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1119		-)))
1120	1120
1121		-(((
1122		-Example screen shot after clear all RS485 commands.
1123		-)))
	676	+* Downlink Payload
1124	1124
1125		-(((
1126		-
1127		-)))
	678	+Format: A8 MM NN XX XX XX XX YY
1128	1128
1129		-(((
1130		-The uplink screen shot is:
1131		-)))
	680	+Where:
1132	1132
1133		-(% 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" %)​
	682	+* MM: 1: add CRC-16/MODBUS ; 0: no CRC
	683	+* NN: The length of RS485 command
	684	+* XX XX XX XX: RS485 command total NN bytes
	685	+* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
1134	1134
	687	+**Example 1:**
1135	1135
1136		-* (((
1137		-(% style="color:#037691" %)** Downlink Payload:**
1138		-)))
	689	+To connect a Modbus Alarm with below commands.
1139	1139
1140		-(((
1141		-(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
1142		-)))
	691	+* 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.
1143	1143
	693	+* 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.
1144	1144
	695	+So if user want to use downlink command to control to RS485 Alarm, he can use:
1145	1145
	697	+**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
1146	1146
1147		-==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
	699	+**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
1148	1148
	701	+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.
1149	1149
1150		-(((
1151		-Set the Rs485 serial communication parameters:
1152		-)))
1153	1153
1154		-(((
1155		-(% style="color:#037691" %)**AT Command:**
1156		-)))
	704	+**Example 2:**
1157	1157
1158		-(((
1159		-* Set Baud Rate
1160		-)))
	706	+Check TTL Sensor return:
1161	1161
1162		-(% style="color:#4472c4" %)** 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
	708	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
1163	1163
1164	1164
1165		-(((
1166		-* Set UART Parity
1167		-)))
1168	1168
1169		-(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
1170	1170
	713	+==== Set Payload version ====
1171	1171
1172		-(((
1173		-* Set STOPBIT
1174		-)))
	715	+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.
1175	1175
1176		-(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	717	+* AT Command:
1177	1177
	719	+AT+PAYVER: Set PAYVER field = 1
1178	1178
1179		-(((
1180		-(% style="color:#037691" %)**Downlink Payload:**
1181		-)))
1182	1182
1183		-(((
1184		-(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
1185		-)))
	722	+* Downlink Payload:
1186	1186
1187		-(((
1188		-**Example:**
1189		-)))
	724	+0xAE 01   à Set PAYVER field =  0x01
1190	1190
1191		-* (((
1192		-A7 01 00 60  same as AT+BAUDR=9600
1193		-)))
1194		-* (((
1195		-A7 01 04 80  same as AT+BAUDR=115200
1196		-)))
	726	+0xAE 0F   à Set PAYVER field =  0x0F
1197	1197
1198		-(((
1199		-* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1200		-)))
1201	1201
1202		-(((
1203		-* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1204		-)))
	729	+==== Set RS485 Sampling Commands ====
1205	1205
	731	+AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
1206	1206
1207		-==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
	733	+These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
1208	1208
1209		-* (((
1210		-(% style="color:#037691" %)** AT Command:**
1211		-)))
1212	1212
1213		-**~ AT+DATABIT=7  **~/~/ Set the data bits to 7
	736	+* AT Command:
1214	1214
1215		-**~ AT+DATABIT=8  **~/~/ Set the data bits to 8
	738	+AT+COMMANDx: Configure RS485 read command to sensor.
1216	1216
1217		-* (((
1218		-(% style="color:#037691" %)**Downlink Payload:**
1219		-)))
	740	+AT+DATACUTx: Configure how to handle return from RS485 devices.
1220	1220
1221		-**~ A7 04 07**: Same as  AT+DATABIT=7
	742	+AT+SEARCHx: Configure search command
1222	1222
1223		-**~ A7 04 08**: Same as  AT+DATABIT=8
1224	1224
	745	+* Downlink Payload:
1225	1225
	747	+0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
1226	1226
1227		-==== (% style="color:blue" %)**Encrypted payload**(%%) ====
	749	+Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
1228	1228
1229		-(((
1230		-
1231		-)))
	751	+Format: AF MM NN LL XX XX XX XX YY
1232	1232
1233		-* (((
1234		-(% style="color:#037691" %)** AT Command:**
1235		-)))
	753	+Where:
1236	1236
1237		-(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
	755	+* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	756	+* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	757	+* LL: The length of AT+COMMAND or AT+DATACUT command
	758	+* XX XX XX XX: AT+COMMAND or AT+DATACUT command
	759	+* 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.
1238	1238
1239		-(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
	761	+Example:
1240	1240
	763	+**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
1241	1241
	765	+**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
1242	1242
	767	+**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
1243	1243
1244		-==== (% style="color:blue" %)**Get sensor value**(%%) ====
1245	1245
	770	+0xAB downlink command can be used for set AT+SEARCHx
1246	1246
1247		-* (((
1248		-(% style="color:#037691" %)** AT Command:**
1249		-)))
	772	+Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
1250	1250
1251		-(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
	774	+* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
	775	+* 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
1252	1252
1253		-(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
	777	+**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
1254	1254
1255	1255
	780	+==== Fast command to handle MODBUS device ====
1256	1256
	782	+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]].
1257	1257
1258		-==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
	784	+This command is valid since v1.3 firmware version
1259	1259
1260	1260
1261		-* (((
1262		-(% style="color:#037691" %)** AT Command:**
1263		-)))
	787	+AT+MBFUN has only two value:
1264	1264
1265		-(% style="color:#4472c4" %)** 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)
	789	+* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
1266	1266
1267		-(% style="color:#4472c4" %)** 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.
	791	+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.
1268	1268
	793	+* AT+MBFUN=0: Disable Modbus fast reading.
1269	1269
	795	+Example:
1270	1270
	797	+* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
	798	+* 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.
	799	+* 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.
1271	1271
1272		-==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
	801	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
1273	1273
1274	1274
1275		-* (((
1276		-(% style="color:#037691" %)** AT Command:**
1277		-)))
	804	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
1278	1278
1279		- (% style="color:#4472c4" %)** 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)
1280	1280
1281		- (% style="color:#4472c4" %)** 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.
	807	+* Downlink Commands:
1282	1282
	809	+A9 aa -à Same as AT+MBFUN=aa
1283	1283
1284		-* (((
1285		-(% style="color:#037691" %)** Downlink Payload:**
1286		-)))
1287	1287
1288		-(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
	812	+==== RS485 command timeout ====
1289	1289
	814	+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.
1290	1290
	816	+Default value: 0, range:  0 ~~ 5 seconds
1291	1291
1292	1292
1293		-==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
	819	+* AT Command:
1294	1294
	821	+AT+CMDDLaa=hex(bb cc)
1295	1295
1296		-* (((
1297		-(% style="color:#037691" %)** AT Command:**
1298		-)))
	823	+Example:
1299	1299
1300		-(% style="color:#4472c4" %)** 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.
	825	+**AT+CMDDL1=1000** to send the open time to 1000ms
1301	1301
1302		-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.
1303	1303
	828	+* Downlink Payload:
1304	1304
1305		-[[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"]]
	830	+0x AA aa bb cc
1306	1306
1307		-For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
	832	+Same as: AT+CMDDLaa=hex(bb cc)
1308	1308
	834	+ Example:
1309	1309
	836	+ 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
1310	1310
1311		-[[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"]]
1312	1312
1313		-For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
	839	+==== [[Uplink>>path:#downlink_A8]] payload mode ====
1314	1314
	841	+Define to use one uplink or multiple uplinks for the sampling.
1315	1315
	843	+The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
1316	1316
	845	+* AT Command:
1317	1317
1318		-==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
	847	+AT+DATAUP=0
1319	1319
	849	+AT+DATAUP=1
1320	1320
1321		-(((
1322		-* (% style="color:#037691" %)**Downlink Payload:**
1323	1323
1324		-(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1325		-)))
	852	+* Downlink Payload:
1326	1326
	854	+0xAD 00   à Same as AT+DATAUP=0
1327	1327
1328		-Example：
	856	+0xAD 01   à Same as AT+DATAUP=1
1329	1329
1330	1330
1331		-[[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"]]
	859	+==== Manually trigger an Uplink ====
1332	1332
	861	+Ask device to send an uplink immediately.
1333	1333
	863	+* Downlink Payload:
1334	1334
	865	+0x08 FF, RS485-BL will immediately send an uplink.
1335	1335
1336		-==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
1337	1337
	868	+==== Clear RS485 Command ====
1338	1338
1339		-* (((
1340		-(% style="color:#037691" %)** AT Command:**
1341		-)))
	870	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1342	1342
1343		-(% style="color:#4472c4" %)**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.
1344	1344
1345		-(% style="color:#4472c4" %)**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.
	873	+* AT Command:
1346	1346
1347		-(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
	875	+**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1348	1348
	877	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1349	1349
1350		-* (((
1351		-(% style="color:#037691" %)**Downlink Payload:**
1352		-)))
	879	+Example screen shot after clear all RS485 commands.
1353	1353
1354		-(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/ same as AT+RXMODE=aa,bb
1355	1355
1356		-[[image:image-20220824144240-1.png]]
1357	1357
	883	+The uplink screen shot is:
1358	1358
	885	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
1359	1359
1360		-== 3.6 Listening mode for RS485 network ==
1361	1361
	888	+* Downlink Payload:
1362	1362
1363		-(((
1364		-This feature support since firmware v1.4
1365		-)))
	890	+0x09 aa bb same as AT+CMDEAR=aa,bb
1366	1366
1367		-(((
1368		-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.
1369	1369
1370		-
1371		-)))
	893	+==== Set Serial Communication Parameters ====
1372	1372
1373		-(% 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"]]
	895	+Set the Rs485 serial communication parameters:
1374	1374
1375		-(% title="Click and drag to resize" %)​
	897	+* AT Command:
1376	1376
1377		-(((
1378		-To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1379		-)))
	899	+Set Baud Rate:
1380	1380
1381		-(((
1382		-
1383		-)))
	901	+AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1384	1384
1385		-(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1386		-|=(% style="width: 100px;" %)(((
1387		-**Command example**
1388		-)))|=(% style="width: 400px;" %)(((
1389		-**Function**
1390		-)))
1391		-|(% style="width:100px" %)(((
1392		-AT+RXMODE=1,10
1393		-)))|(% style="width:400px" %)(((
1394		-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.
1395		-)))
1396		-|(% style="width:100px" %)(((
1397		-AT+RXMODE=2,500
1398		-)))|(% style="width:400px" %)(((
1399		-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
1400		-)))
1401		-|(% style="width:100px" %)(((
1402		-AT+RXMODE=0,0
1403		-)))|(% style="width:400px" %)(((
1404		-Disable listening mode. This is the default settings.
1405		-)))
1406		-|(% style="width:100px" %)(((
1407		-
1408		-)))|(% style="width:400px" %)(((
1409		-A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1410		-)))
1411	1411
1412		-(((
1413		-
	904	+Set UART parity
1414	1414
1415		-(% style="color:#037691" %)**Downlink Command:**
1416		-)))
	906	+AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1417	1417
1418		-(((
1419		-(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
1420		-)))
1421	1421
1422		-(((
1423		-
1424		-)))
	909	+Set STOPBIT
1425	1425
1426		-(((
1427		-**Example**:
1428		-)))
	911	+AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1429	1429
1430		-(((
1431		-The RS485-LN is set to AT+RXMODE=2,1000
1432		-)))
1433	1433
1434		-(((
1435		-There is a two Modbus commands in the RS485 network as below:
1436		-)))
	914	+* Downlink Payload:
1437	1437
1438		-(((
1439		-The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1440		-)))
	916	+A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
1441	1441
1442		-(((
1443		-And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1444		-)))
	918	+Example:
1445	1445
1446		-(((
1447		-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
	920	+* A7 01 00 60   same as AT+BAUDR=9600
	921	+* A7 01 04 80  same as AT+BAUDR=115200
1448	1448
1449		-
1450		-)))
	923	+A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1451	1451
1452		-(((
1453		-(% 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" %)​
1454		-)))
	925	+A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1455	1455
1456		-(((
1457		-
1458		-)))
1459	1459
1460		-(((
1461		-(((
1462		-(% 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.**
1463		-)))
1464		-)))
	928	+==== Control output power duration ====
1465	1465
	930	+User can set the output power duration before each sampling.
1466	1466
	932	+* AT Command:
1467	1467
1468		-== 3.7 Buttons ==
	934	+Example:
1469	1469
	936	+AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
1470	1470
1471		-(% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1472		-|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1473		-|(% 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**
1474		-|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1475		-|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
	938	+AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
1476	1476
1477	1477
	941	+* LoRaWAN Downlink Command:
1478	1478
1479		-== 3.8 LEDs ==
	943	+07 01 aa bb  Same as AT+5VT=(aa bb)
1480	1480
	945	+07 02 aa bb  Same as AT+3V3T=(aa bb)
1481	1481
1482		-(% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1483		-|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1484		-|**PWR**|Always on if there is power
1485		-|**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.
1486	1486
1487	1487
1488	1488
1489		-= 4. Case Study =
	950	+1.
	951	+11. Buttons
1490	1490
	953	+|**Button**|**Feature**
	954	+|**RST**|Reboot RS485-BL
1491	1491
1492		-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]]
	956	+1.
	957	+11. +3V3 Output
1493	1493
	959	+RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1494	1494
	961	+The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling.
1495	1495
1496		-= 5. Use AT Command =
1497	1497
	964	+The +3V3 output time can be controlled by AT Command.
1498	1498
1499		-== 5.1 Access AT Command ==
	966	+**AT+3V3T=1000**
1500	1500
	968	+Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1501	1501
1502		-(((
1503		-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.
1504	1504
1505		-
1506		-)))
	971	+By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1507	1507
1508		-(% 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" %)​
1509	1509
	974	+1.
	975	+11. +5V Output
1510	1510
	977	+RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1511	1511
1512		-(((
1513		-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:
	979	+The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling.
1514	1514
1515		-
1516		-)))
1517	1517
1518		-(% 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" %)​
	982	+The 5V output time can be controlled by AT Command.
1519	1519
	984	+**AT+5VT=1000**
1520	1520
1521		-(((
1522		-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/]]
1523		-)))
	986	+Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1524	1524
1525	1525
	989	+By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1526	1526
1527		-== 5.2 Common AT Command Sequence ==
1528	1528
1529	1529
1530		-=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1531	1531
	994	+1.
	995	+11. LEDs
1532	1532
1533		-If device has not joined network yet:
	997	+|**LEDs**|**Feature**
	998	+|**LED1**|Blink when device transmit a packet.
1534	1534
1535		-* (% style="color:#037691" %)**AT+FDR**
1536		-* (% style="color:#037691" %)**AT+NJM=0**
1537		-* (% style="color:#037691" %)**ATZ**
	1000	+1.
	1001	+11. Switch Jumper
1538	1538
1539		-(((
1540		-
	1003	+|**Switch Jumper**|**Feature**
	1004	+|**SW1**|(((
	1005	+ISP position: Upgrade firmware via UART
1541	1541
1542		-If device already joined network:
	1007	+Flash position: Configure device, check running status.
	1008	+)))
	1009	+|**SW2**|(((
	1010	+5V position: set to compatible with 5v I/O.
1543	1543
1544		-* (% style="color:#037691" %)**AT+NJM=0**
1545		-* (% style="color:#037691" %)**ATZ**
1546		-
1547		-
	1012	+3.3v position: set to compatible with 3.3v I/O.,
1548	1548	)))
1549	1549
	1015	++3.3V: is always ON
1550	1550
	1017	++5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1551	1551
1552		-=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
	1019	+1. Case Study
1553	1553
	1021	+User can check this URL for some case studies.
1554	1554
1555		-(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
	1023	+[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
1556	1556
1557		-(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1558	1558
1559		-(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1560	1560
1561		-(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1562	1562
1563		-(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
	1028	+1. Use AT Command
	1029	+11. Access AT Command
1564	1564
1565		-(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
	1031	+RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1566	1566
1567		-(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
	1033	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1568	1568
1569		-(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1570	1570
1571		-(% 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.
	1036	+In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1572	1572
1573		-(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
	1038	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1574	1574
1575	1575
1576		-(% style="color:red" %)**Note:**
1577	1577
1578		-(((
1579		-(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1580		-2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1581		-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.
1582		-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
	1042	+More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1583	1583
1584		-
1585		-)))
1586	1586
1587		-(% 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" %)​
1588	1588
	1046	+1.
	1047	+11. Common AT Command Sequence
	1048	+111. Multi-channel ABP mode (Use with SX1301/LG308)
1589	1589
	1050	+If device has not joined network yet:
1590	1590
1591		-= 6. FAQ =
	1052	+AT+FDR
1592	1592
	1054	+AT+NJM=0
1593	1593
1594		-== 6.1 How to upgrade the image? ==
	1056	+ATZ
1595	1595
1596	1596
1597		-(((
1598		-The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1599		-)))
	1059	+If device already joined network:
1600	1600
1601		-* (((
1602		-Support new features
1603		-)))
1604		-* (((
1605		-For bug fix
1606		-)))
1607		-* (((
1608		-Change LoRaWAN bands.
1609		-)))
	1061	+AT+NJM=0
1610	1610
1611		-(((
1612		-Below shows the hardware connection for how to upload an image to RS485-LN:
1613		-)))
	1063	+ATZ
1614	1614
1615		-(% 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"]]
	1065	+1.
	1066	+11.
	1067	+111. Single-channel ABP mode (Use with LG01/LG02)
1616	1616
1617		-(% title="Click and drag to resize" %)​
	1069	+AT+FDR   Reset Parameters to Factory Default, Keys Reserve
1618	1618
1619		-(((
1620		-(% 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]].
	1071	+AT+NJM=0 Set to ABP mode
1621	1621
1622		-
1623		-)))
	1073	+AT+ADR=0 Set the Adaptive Data Rate Off
1624	1624
1625		-(((
1626		-(% 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]].
	1075	+AT+DR=5  Set Data Rate
1627	1627
1628		-
1629		-)))
	1077	+AT+TDC=60000  Set transmit interval to 60 seconds
1630	1630
1631		-(((
1632		-(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
	1079	+AT+CHS=868400000 Set transmit frequency to 868.4Mhz
1633	1633
1634		-
1635		-)))
	1081	+AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1636	1636
1637		-(((
1638		-(((
1639		-(((
1640		-(% 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.
1641		-)))
1642		-)))
1643		-)))
	1083	+AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
1644	1644
	1085	+AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1645	1645
1646		-(% 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" %)​
	1087	+ATZ          Reset MCU
1647	1647
	1089	+**Note:**
1648	1648
1649		-(% 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" %)​
	1091	+1. Make sure the device is set to ABP mode in the IoT Server.
	1092	+1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1093	+1. 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.
	1094	+1. 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
1650	1650
	1096	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1651	1651
1652		-(% 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" %)​
1653	1653
	1099	+1. FAQ
	1100	+11. How to upgrade the image?
1654	1654
1655		-(% 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:**
	1102	+The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1656	1656
1657		-(% 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" %)​
	1104	+* Support new features
	1105	+* For bug fix
	1106	+* Change LoRaWAN bands.
1658	1658
	1108	+Below shows the hardware connection for how to upload an image to RS485-BL:
1659	1659
	1110	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1660	1660
1661		-== 6.2 How to change the LoRa Frequency Bands/Region? ==
	1112	+**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]].
1662	1662
	1114	+**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1663	1663
1664		-User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
	1116	+**Step3: **Open flashloader; choose the correct COM port to update.
1665	1665
1666	1666
	1119	+|(((
	1120	+HOLD PRO then press the RST button, SYS will be ON, then click next
	1121	+)))
1667	1667
1668		-== 6.3 How many RS485-Slave can RS485-LN connects? ==
	1123	+|(((
	1124	+Board detected
	1125	+)))
1669	1669
	1127	+|(((
	1128	+
	1129	+)))
1670	1670
1671		-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"]].
	1131	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1672	1672
1673	1673
1674	1674
1675		-== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
	1135	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1676	1676
1677	1677
1678		-When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
	1138	+[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1679	1679
1680		-Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1681	1681
	1141	+1.
	1142	+11. How to change the LoRa Frequency Bands/Region?
1682	1682
	1144	+User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1683	1683
1684		-== 6.5 Can i use point to point communication for RS485-LN? ==
1685	1685
1686	1686
1687		-Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
	1148	+1.
	1149	+11. How many RS485-Slave can RS485-BL connects?
1688	1688
	1151	+The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL 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>>path:#downlink_A8]].
1689	1689
1690	1690
1691		-== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1692	1692
1693	1693
1694		-[[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/]]
	1156	+1. Trouble Shooting
	1157	+11. Downlink doesn’t work, how to solve it?
1695	1695
	1159	+Please see this link for debug:
1696	1696
	1161	+[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]]
1697	1697
1698		-= 7. Trouble Shooting =
1699	1699
1700	1700
1701		-== 7.1 Downlink doesn't work, how to solve it? ==
	1165	+1.
	1166	+11. Why I can’t join TTN V3 in US915 /AU915 bands?
1702	1702
	1168	+It might about the channels mapping. Please see for detail.
1703	1703
1704		-Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
	1170	+[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1705	1705
1706	1706
1707	1707
1708		-== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
	1174	+1. Order Info
1709	1709
	1176	+**Part Number: RS485-BL-XXX**
1710	1710
1711		-It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
	1178	+**XXX:**
1712	1712
	1180	+* **EU433**: frequency bands EU433
	1181	+* **EU868**: frequency bands EU868
	1182	+* **KR920**: frequency bands KR920
	1183	+* **CN470**: frequency bands CN470
	1184	+* **AS923**: frequency bands AS923
	1185	+* **AU915**: frequency bands AU915
	1186	+* **US915**: frequency bands US915
	1187	+* **IN865**: frequency bands IN865
	1188	+* **RU864**: frequency bands RU864
	1189	+* **KZ865: **frequency bands KZ865
1713	1713
	1191	+1. Packing Info
1714	1714
1715		-= 8. Order Info =
1716		-
1717		-
1718		-(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1719		-
1720		-(% style="color:blue" %)**XXX:**
1721		-
1722		-* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1723		-* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1724		-* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1725		-* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1726		-* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1727		-* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1728		-* (% style="color:red" %)**US915**(%%):  frequency bands US915
1729		-* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1730		-* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1731		-* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1732		-
1733		-
1734		-
1735		-= 9.Packing Info =
1736		-
1737		-
1738	1738	**Package Includes**:
1739	1739
1740		-* RS485-LN x 1
	1195	+* RS485-BL x 1
1741	1741	* Stick Antenna for LoRa RF part x 1
1742	1742	* Program cable x 1
1743	1743
...	...	@@ -1748,70 +1748,9 @@
1748	1748	* Package Size / pcs : 14.5 x 8 x 5 cm
1749	1749	* Weight / pcs : 170g
1750	1750
	1206	+1. Support
1751	1751
	1208	+* 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.
	1209	+* 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
1752	1752
1753		-= 10. FCC Caution for RS485LN-US915 =
1754		-
1755		-
1756		-(((
1757		-Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1758		-)))
1759		-
1760		-(((
1761		-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.
1762		-)))
1763		-
1764		-(((
1765		-
1766		-)))
1767		-
1768		-(((
1769		-(% style="color:red" %)**IMPORTANT NOTE:**
1770		-)))
1771		-
1772		-(((
1773		-(% 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:
1774		-)))
1775		-
1776		-(((
1777		-—Reorient or relocate the receiving antenna.
1778		-)))
1779		-
1780		-(((
1781		-—Increase the separation between the equipment and receiver.
1782		-)))
1783		-
1784		-(((
1785		-—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1786		-)))
1787		-
1788		-(((
1789		-—Consult the dealer or an experienced radio/TV technician for help.
1790		-)))
1791		-
1792		-(((
1793		-
1794		-)))
1795		-
1796		-(((
1797		-(% style="color:red" %)**FCC Radiation Exposure Statement:**
1798		-)))
1799		-
1800		-(((
1801		-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.
1802		-)))
1803		-
1804		-
1805		-
1806		-= 11. Support =
1807		-
1808		-
1809		-* (((
1810		-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.
1811		-)))
1812		-* (((
1813		-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]].
1814		-
1815		-
1816		-
1817		-)))
	1211	+[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]

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