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

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Details

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

Content

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1		-(% style="text-align:center" %)
2		-[[image:1653266934636-343.png||height="385" width="385"]]
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5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
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9	9	**Table of Contents:**
10	10
	17	+{{toc/}}
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15	15	= 1.Introduction =
16	16
	33	+
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
18	18
19	19	(((
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21	21	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.
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25	25	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.
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29	29	(% 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.
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33	33	(% 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.
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35	35	(% 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]]
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39		-[[image:1653267211009-519.png||height="419" width="724"]]
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	73	+
42	42	== 1.2 Specifications ==
43	43
44	44
45		-**Hardware System:**
	77	+(% style="color:#037691" %)**Hardware System:**
46	46
47	47	* STM32L072CZT6 MCU
48	48	* SX1276/78 Wireless Chip
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50	50	** Idle: 32mA@12v
51	51	** 20dB Transmit: 65mA@12v
52	52
53		-**Interface for Model:**
54	54
	86	+
	87	+(% style="color:#037691" %)**Interface for Model:**
	88	+
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
59	59
	93	+
	94	+(% style="color:#037691" %)**LoRa Spec:**
	95	+
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 Mhz
62	62	** Band 2 (LF): 410 ~~ 528 Mhz
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74	74	* Preamble detection.
75	75	* 127 dB Dynamic Range RSSI.
76	76	* Automatic RF Sense and CAD with ultra-fast AFC.
77		-* Packet engine up to 256 bytes with CRC.
	113	+* Packet engine up to 256 bytes with CRC
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79	79
80	80
	117	+
81	81	== 1.3 Features ==
82	82
	120	+
83	83	* LoRaWAN Class A & Class C protocol (default Class C)
84		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	122	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
85	85	* AT Commands to change parameters
86	86	* Remote configure parameters via LoRa Downlink
87	87	* Firmware upgradable via program port
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	132	+
94	94	== 1.4 Applications ==
95	95
	135	+
96	96	* Smart Buildings & Home Automation
97	97	* Logistics and Supply Chain Management
98	98	* Smart Metering
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	145	+
105	105	== 1.5 Firmware Change log ==
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107	107	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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109	109
	152	+
110	110	== 1.6 Hardware Change log ==
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112	112	(((
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114	114	v1.2: Add External Interrupt Pin.
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116	116	v1.0: Release
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121	121
122	122	= 2. Power ON Device =
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125	125	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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131	131	Once there is power, the RS485-LN will be on.
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134		-[[image:1653268091319-405.png]]
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138	138
139	139	= 3. Operation Mode =
140	140
	192	+
141	141	== 3.1 How it works? ==
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144	144	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.
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148	148
149	149	== 3.2 Example to join LoRaWAN network ==
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151	151	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.
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153		-[[image:1653268155545-638.png||height="334" width="724"]]
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156	156	(((
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158	158	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:
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161	161	(((
162	162	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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165		-[[image:1653268227651-549.png||height="592" width="720"]]
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167	167	(((
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:
	229	+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:
	230	+
	231	+
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172		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	235	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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180		-[[image:1652953462722-299.png]]
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182	182	(((
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184	184	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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187	187	(((
188		-Add APP EUI in the application.
	254	+**Add APP EUI in the application.**
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192		-[[image:image-20220519174512-1.png]]
	258	+(% 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" %)​
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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"]]
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198		-[[image:image-20220519174512-4.png]]
	264	+(% 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"]]
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	266	+
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	268	+
200	200	You can also choose to create the device manually.
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202		-[[image:1652953542269-423.png||height="710" width="723"]]
	271	+(% 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" %)​
203	203
204		-Add APP KEY and DEV EUI
205	205
206		-[[image:1652953553383-907.png||height="514" width="724"]]
207	207
	275	+**Add APP KEY and DEV EUI**
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	278	+
	279	+
	280	+
209	209	(((
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.
	282	+(% 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.
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	284	+
211	211	)))
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213		-[[image:1652953568895-172.png||height="232" width="724"]]
	287	+(% 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" %)​
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	290	+
216	216	== 3.3 Configure Commands to read data ==
217	217
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218	218	(((
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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.
	296	+(((
	297	+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.
	298	+
	299	+
221	221	)))
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223	223	(((
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
	304	+(((
	305	+(% 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**
	306	+)))
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227	227	)))
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229	229
230		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	313	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
231	231
	315	+
232	232	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:
233	233
234		-(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
235		-|(% style="width:128px" %)(((
	318	+
	319	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	320	+|=(% style="width: 110px;" %)(((
236	236	**AT Commands**
237		-)))|(% style="width:305px" %)(((
	322	+)))|=(% style="width: 190px;" %)(((
238	238	**Description**
239		-)))|(% style="width:346px" %)(((
	324	+)))|=(% style="width: 190px;" %)(((
240	240	**Example**
241	241	)))
242		-|(% style="width:128px" %)(((
	327	+|(% style="width:110px" %)(((
243	243	AT+BAUDR
244		-)))|(% style="width:305px" %)(((
	329	+)))|(% style="width:190px" %)(((
245	245	Set the baud rate (for RS485 connection). Default Value is: 9600.
246		-)))|(% style="width:346px" %)(((
	331	+)))|(% style="width:190px" %)(((
247	247	(((
248	248	AT+BAUDR=9600
249	249	)))
...	...	@@ -252,11 +252,11 @@
252	252	Options: (1200,2400,4800,14400,19200,115200)
253	253	)))
254	254	)))
255		-|(% style="width:128px" %)(((
	340	+|(% style="width:110px" %)(((
256	256	AT+PARITY
257		-)))|(% style="width:305px" %)(((
	342	+)))|(% style="width:190px" %)(((
258	258	Set UART parity (for RS485 connection)
259		-)))|(% style="width:346px" %)(((
	344	+)))|(% style="width:190px" %)(((
260	260	(((
261	261	AT+PARITY=0
262	262	)))
...	...	@@ -265,9 +265,9 @@
265	265	Option: 0: no parity, 1: odd parity, 2: even parity
266	266	)))
267	267	)))
268		-|(% style="width:128px" %)(((
	353	+|(% style="width:110px" %)(((
269	269	AT+STOPBIT
270		-)))|(% style="width:305px" %)(((
	355	+)))|(% style="width:190px" %)(((
271	271	(((
272	272	Set serial stopbit (for RS485 connection)
273	273	)))
...	...	@@ -275,7 +275,7 @@
275	275	(((
276	276
277	277	)))
278		-)))|(% style="width:346px" %)(((
	363	+)))|(% style="width:190px" %)(((
279	279	(((
280	280	AT+STOPBIT=0 for 1bit
281	281	)))
...	...	@@ -290,906 +290,1303 @@
290	290	)))
291	291
292	292
	378	+
	379	+
293	293	=== 3.3.2 Configure sensors ===
294	294
	382	+
295	295	(((
296	296	(((
297		-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.
	385	+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.
	386	+
	387	+
298	298	)))
299	299	)))
300	300
301		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
302		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
303		-|AT+CFGDEV|(% style="width:418px" %)(((
	391	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	392	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	393	+|AT+CFGDEV|(% style="width:110px" %)(((
	394	+(((
304	304	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	396	+)))
305	305
	398	+(((
306	306	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	400	+)))
307	307
	402	+(((
308	308	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
309		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	404	+)))
	405	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
310	310
	407	+
	408	+
	409	+
311	311	=== 3.3.3 Configure read commands for each sampling ===
312	312
313		-(((
314		-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.
315		-)))
316	316
317	317	(((
318		-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.
319		-)))
	414	+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.
320	320
321		-(((
322	322	To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
323		-)))
324	324
325		-(((
326	326	This section describes how to achieve above goals.
327		-)))
328	328
329		-(((
330		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
331		-)))
	420	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
332	332
333		-(((
334		-**Command from RS485-BL to Sensor:**
335		-)))
336	336
337		-(((
338		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
339		-)))
	423	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
340	340
341		-(((
342		-**Handle return from sensors to RS485-BL**:
	425	+
	426	+~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.
	427	+
	428	+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.
	429	+
	430	+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
	431	+
	432	+
	433	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	434	+
	435	+Below are examples for the how above AT Commands works.
	436	+
	437	+
	438	+(% 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:
	439	+
	440	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	441	+|(% style="width:496px" %)(((
	442	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	443	+
	444	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	445	+
	446	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
343	343	)))
344	344
345		-(((
346		-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**
	449	+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.
	450	+
	451	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	452	+
	453	+
	454	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	455	+
	456	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	457	+|(% style="width:510px" %)(((
	458	+**AT+DATACUTx=a,b,c**
	459	+
	460	+* **a: length for the return of AT+COMMAND**
	461	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	462	+* **c: define the position for valid value.  **
347	347	)))
348	348
349		-* (((
350		-**AT+DATACUT**
	465	+
	466	+**Examples:**
	467	+
	468	+
	469	+* (% style="color:#037691" %)**Grab bytes**
	470	+
	471	+(% 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" %)​
	472	+
	473	+
	474	+
	475	+* (% style="color:#037691" %)**Grab a section**
	476	+
	477	+(% 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" %)​
	478	+
	479	+
	480	+
	481	+* (% style="color:#037691" %)**Grab different sections**
	482	+
	483	+(% 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" %)​
	484	+
	485	+
	486	+
351	351	)))
352	352
	489	+=== 3.3.4 Compose the uplink payload ===
	490	+
	491	+
353	353	(((
354		-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.
355		-)))
	493	+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.**
356	356
357		-* (((
358		-**AT+SEARCH**
	495	+
359	359	)))
360	360
361	361	(((
362		-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.
	499	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	500	+
	501	+
363	363	)))
364	364
365	365	(((
366		-**Define wait timeout:**
	505	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
367	367	)))
368	368
369	369	(((
370		-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
	509	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
371	371	)))
372	372
373	373	(((
374		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	513	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	514	+
	515	+
375	375	)))
376	376
377		-**Examples:**
	518	+(% aria-label="1653269759169-150.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653269759169-150.png||data-widget="image" height="513" width="716"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
378	378
379		-Below are examples for the how above AT Commands works.
380	380
381		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	521	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
382	382
383		-(% border="1" class="table-bordered" %)
384		-|(((
385		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
386	386
387		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	524	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
388	388
389		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
390		-)))
	526	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
391	391
	528	+
	529	+1. PAYVER: Defined by AT+PAYVER
	530	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	531	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	532	+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
	533	+
	534	+
	535	+
	536	+(% 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" %)​
	537	+
	538	+
	539	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	540	+
	541	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	542	+
	543	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	544	+
	545	+DATA3=the rest of Valid value of RETURN10= **30**
	546	+
	547	+
	548	+(% 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:**
	549	+
	550	+
	551	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	552	+
	553	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	554	+
	555	+ * For US915 band, max 11 bytes for each uplink.
	556	+
	557	+ ~* For all other bands: max 51 bytes for each uplink.
	558	+
	559	+(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	560	+
	561	+(% 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)**
	562	+
	563	+
	564	+(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
	565	+
	566	+1 )  When **(% style="color:blue" %)AT+MOD=1**(%%), if the data intercepted by** AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n FFs**.
	567	+
	568	+
	569	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114359-3.png?width=1106&height=297&rev=1.1||alt="image-20220824114359-3.png" height="297" width="1106"]]
	570	+
	571	+
	572	+
	573	+2 )  When **(% style="color:blue" %)AT+MOD=2**(%%), if the data intercepted by **AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n 00s**.
	574	+
	575	+
	576	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114330-2.png?rev=1.1||alt="image-20220824114330-2.png"]]
	577	+
	578	+
	579	+
	580	+Below are the uplink payloads:
	581	+
	582	+
	583	+(% 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" %)​
	584	+
	585	+
	586	+
	587	+=== 3.3.5 Uplink on demand ===
	588	+
	589	+
	590	+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.
	591	+
	592	+**(% style="color:blue" %)Downlink control command:**
	593	+
	594	+**(% style="color:#4472C4" %) 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	595	+
	596	+**(% style="color:#4472C4" %) 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	597	+
	598	+
	599	+
	600	+=== 3.3.6 Uplink on Interrupt ===
	601	+
	602	+
	603	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	604	+
	605	+
	606	+(% 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" %)​
	607	+
	608	+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.
	609	+
	610	+
	611	+
	612	+== 3.4 Uplink Payload ==
	613	+
	614	+
	615	+(% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
	616	+
	617	+(% title="Click and drag to resize" %)​
	618	+
	619	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	620	+
	621	+
	622	+
	623	+== 3.5 Configure RS485-LN via AT or Downlink ==
	624	+
	625	+
392	392	(((
393		-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.
	627	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
394	394	)))
395	395
396	396	(((
397		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	631	+There are two kinds of Commands:
398	398	)))
399	399
400		-(((
401		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	634	+* (((
	635	+(% 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]]
402	402	)))
403	403
404		-(% border="1" class="table-bordered" %)
405		-|(((
406		-**AT+SEARCHx=aa,xx xx xx xx xx**
	638	+* (((
	639	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	640	+)))
407	407
408		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
409		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
410		-
	642	+(((
411	411
412	412	)))
413	413
414		-**Examples:**
415	415
416		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
417	417
418		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	648	+=== 3.5.1 Common Commands ===
419	419
420		-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**
421	421
422		-[[image:1653269403619-508.png]]
	651	+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]]
423	423
424		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
425	425
426		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
427	427
428		-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**
	655	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
429	429
430		-[[image:1653269438444-278.png]]
431	431
432		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	658	+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.
433	433
434		-|(((
435		-**AT+DATACUTx=a,b,c**
	660	+(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]](% title="Click and drag to resize" %)​
436	436
437		-* **a: length for the return of AT+COMMAND**
438		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
439		-* **c: define the position for valid value.  **
440		-)))
	662	+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)
441	441
442		-Examples:
443	443
444		-* Grab bytes:
445	445
446		-[[image:1653269551753-223.png||height="311" width="717"]]
	666	+=== 3.5.3 Sensor related commands ===
447	447
448		-* Grab a section.
449	449
450		-[[image:1653269568276-930.png||height="325" width="718"]]
451	451
452		-* Grab different sections.
453	453
454		-[[image:1653269593172-426.png||height="303" width="725"]]
	671	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
455	455
456		-(% style="color:red" %)**Note:**
457	457
458		-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.
	674	+(((
	675	+This command is used to configure the RS485 devices; they won't be used during sampling.
	676	+)))
459	459
460		-Example:
	678	+* (((
	679	+(% style="color:#037691" %)**AT Command**
461	461
462		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
	681	+(((
	682	+**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
	683	+)))
	684	+)))
463	463
464		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	686	+(((
	687	+
	688	+)))
465	465
466		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
	690	+* (((
	691	+(% style="color:#037691" %)**Downlink Payload**
	692	+)))
467	467
468		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	694	+(((
	695	+Format: A8 MM NN XX XX XX XX YY
	696	+)))
469	469
470		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
	698	+(((
	699	+Where:
	700	+)))
471	471
472		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	702	+* (((
	703	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	704	+)))
	705	+* (((
	706	+NN: The length of RS485 command
	707	+)))
	708	+* (((
	709	+XX XX XX XX: RS485 command total NN bytes
	710	+)))
	711	+* (((
	712	+(((
	713	+YY: How many bytes will be uplink from the return of this RS485 command,
	714	+)))
473	473
474		-[[image:1653269618463-608.png]]
	716	+* (((
	717	+if YY=0, RS485-LN will execute the downlink command without uplink;
	718	+)))
	719	+* (((
	720	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	721	+)))
	722	+* (((
	723	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	724	+)))
	725	+)))
475	475
476		-=== 3.3.4 Compose the uplink payload ===
	727	+(((
	728	+
477	477
	730	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	731	+)))
	732	+
478	478	(((
479		-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.**
	734	+To connect a Modbus Alarm with below commands.
480	480	)))
481	481
	737	+* (((
	738	+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.
	739	+)))
	740	+
	741	+* (((
	742	+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.
	743	+)))
	744	+
482	482	(((
483		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	746	+
	747	+
	748	+So if user want to use downlink command to control to RS485 Alarm, he can use:
484	484	)))
485	485
486	486	(((
487		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	752	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
488	488	)))
489	489
490	490	(((
491		-Final Payload is
	756	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
492	492	)))
493	493
494	494	(((
495		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	760	+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.
496	496	)))
497	497
498	498	(((
499		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	764	+
500	500	)))
501	501
502		-[[image:1653269759169-150.png||height="513" width="716"]]
	767	+(((
	768	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	769	+)))
503	503
504		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	771	+(((
	772	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	773	+)))
505	505
506		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	775	+(((
	776	+
	777	+)))
507	507
508		-Final Payload is
	779	+(((
	780	+(((
	781	+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**
	782	+)))
509	509
510		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	784	+
	785	+)))
511	511
512		-1. Battery Info (2 bytes): Battery voltage
513		-1. PAYVER (1 byte): Defined by AT+PAYVER
514		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
515		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
516		-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
	787	+(((
	788	+ (% 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" %)​
	789	+)))
517	517
518		-[[image:1653269916228-732.png||height="433" width="711"]]
519	519
520	520
521		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
522	522
523		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	794	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
524	524
525		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
526	526
527		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	797	+(((
	798	+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.
	799	+)))
528	528
529		-Below are the uplink payloads:
	801	+* (((
	802	+(% style="color:#037691" %)**AT Command:**
530	530
531		-[[image:1653270130359-810.png]]
	804	+**AT+PAYVER:    **Set PAYVER field = 1
532	532
	806	+
	807	+)))
	808	+* (((
	809	+(% style="color:#037691" %)**Downlink Payload:**
	810	+)))
533	533
534		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	812	+(((
	813	+**0xAE 01**  ~-~->  Set PAYVER field =  0x01
	814	+)))
535	535
536		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	816	+(((
	817	+**0xAE 0F**   ~-~->  Set PAYVER field =  0x0F
	818	+)))
537	537
538		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
539	539
540		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	821	+1)Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)[[image:image-20220824145428-2.png||height="168" width="1300"]]
541	541
542		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
543	543
544		-=== 3.3.5 Uplink on demand ===
	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.
545	545
546		-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.
	826	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
547	547
548		-Downlink control command:
549	549
550		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	829	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
551	551
552		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
553	553
	832	+(((
	833	+AT+COMMANDx or AT+DATACUTx
	834	+)))
554	554
	836	+(((
	837	+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"]].
	838	+)))
555	555
556		-1.
557		-11.
558		-111. Uplink on Interrupt
	840	+(((
	841	+
	842	+)))
559	559
560		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	844	+* (((
	845	+(% style="color:#037691" %)**AT Command:**
	846	+)))
561	561
562		-AT+INTMOD=0  Disable Interrupt
	848	+**AT+COMMANDx:    **Configure RS485 read command to sensor.
563	563
564		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	850	+**AT+DATACUTx:        **Configure how to handle return from RS485 devices.
565	565
566		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
567	567
568		-AT+INTMOD=3  Interrupt trigger by rising edge.
	853	+* (((
	854	+(% style="color:#037691" %)**Downlink Payload:**
	855	+)))
569	569
	857	+(((
	858	+**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
570	570
571		-1.
572		-11. Uplink Payload
	860	+
	861	+)))
573	573
574		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
575		-|Value|(((
576		-Battery(mV)
	863	+(((
	864	+(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
577	577
578		-&
	866	+
	867	+)))
579	579
580		-Interrupt _Flag
581		-)))|(((
582		-PAYLOAD_VER
	869	+(((
	870	+Format: AF MM NN LL XX XX XX XX YY
	871	+)))
583	583
584		-
585		-)))|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.
	873	+(((
	874	+Where:
	875	+)))
586	586
587		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	877	+* (((
	878	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	879	+)))
	880	+* (((
	881	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	882	+)))
	883	+* (((
	884	+LL:  The length of AT+COMMAND or AT+DATACUT command
	885	+)))
	886	+* (((
	887	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	888	+)))
	889	+* (((
	890	+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.
	891	+)))
588	588
	893	+(((
	894	+
589	589
590		-function Decoder(bytes, port) {
	896	+**Example:**
	897	+)))
591	591
592		-~/~/Payload Formats of RS485-BL Deceive
	899	+(((
	900	+(% 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
	901	+)))
593	593
594		-return {
	903	+(((
	904	+(% 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**
	905	+)))
595	595
596		- ~/~/Battery,units:V
	907	+(((
	908	+(% 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**
	909	+)))
597	597
598		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
599	599
600		- ~/~/GPIO_EXTI
601	601
602		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
603	603
604		- ~/~/payload of version
	914	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
605	605
606		- Pay_ver:bytes[2],
607	607
608		- };
	917	+(((
	918	+**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]].
	919	+)))
609	609
610		- }
	921	+(((
	922	+This command is valid since v1.3 firmware version
	923	+)))
611	611
	925	+(((
	926	+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.
	927	+)))
612	612
	929	+(((
	930	+
	931	+)))
613	613
	933	+(((
	934	+**Example:**
	935	+)))
614	614
	937	+* (((
	938	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	939	+)))
	940	+* (((
	941	+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.
	942	+)))
	943	+* (((
	944	+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.
615	615
	946	+
	947	+)))
616	616
	949	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% title="Click and drag to resize" %)​
617	617
618		-TTN V3 uplink screen shot.
	951	+(% 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" %)​
619	619
620		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
621	621
622		-1.
623		-11. Configure RS485-BL via AT or Downlink
624	624
625		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
626	626
627		-There are two kinds of Commands:
	956	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
628	628
629		-* **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
630	630
631		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	959	+(((
	960	+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.
	961	+)))
632	632
633		-1.
634		-11.
635		-111. Common Commands:
	963	+(((
	964	+Default value: 0, range:  0 ~~ 65 seconds
	965	+)))
636	636
637		-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]]
	967	+* (((
	968	+(% style="color:#037691" %)** AT Command:**
638	638
	970	+**AT+CMDDLaa=hex(bb cc)*1000**
	971	+)))
639	639
640		-1.
641		-11.
642		-111. Sensor related commands:
	973	+(((
	974	+
643	643
644		-==== Choose Device Type (RS485 or TTL) ====
	976	+**Example:**
	977	+)))
645	645
646		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	979	+(((
	980	+**AT+CMDDL1=1000** to send the open time to 1000ms
	981	+)))
647	647
648		-* AT Command
	983	+(((
	984	+
	985	+)))
649	649
650		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	987	+* (((
	988	+(% style="color:#037691" %)** Downlink Payload:**
	989	+)))
651	651
652		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	991	+(((
	992	+**0x AA aa bb cc**
	993	+)))
653	653
	995	+(((
	996	+Same as: AT+CMDDLaa=hex(bb cc)*1000
	997	+)))
654	654
655		-* Downlink Payload
	999	+(((
	1000	+**Example:**
	1001	+)))
656	656
657		-**0A aa**     à same as AT+MOD=aa
	1003	+(((
	1004	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	1005	+)))
658	658
659	659
	1008	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
660	660
661		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
662	662
663		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	1011	+(((
	1012	+Define to use one uplink or multiple uplinks for the sampling.
	1013	+)))
664	664
665		-* AT Command
	1015	+(((
	1016	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
666	666
667		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	1018	+
	1019	+)))
668	668
669		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1021	+* (((
	1022	+(% style="color:#037691" %)** AT Command:**
670	670
	1024	+**AT+DATAUP=0**
671	671
	1026	+**AT+DATAUP=1**
672	672
673		-* Downlink Payload
	1028	+
	1029	+)))
674	674
675		-Format: A8 MM NN XX XX XX XX YY
	1031	+**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
676	676
677		-Where:
	1033	+Each uplink is sent to the server at 20-second intervals when segmented.
678	678
679		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
680		-* NN: The length of RS485 command
681		-* XX XX XX XX: RS485 command total NN bytes
682		-* 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
683	683
684		-**Example 1:**
	1036	+* (((
	1037	+(% style="color:#037691" %)** Downlink Payload:**
	1038	+)))
685	685
686		-To connect a Modbus Alarm with below commands.
	1040	+**0xAD 00**  **~-~->** Same as AT+DATAUP=0
687	687
688		-* 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.
	1042	+**0xAD 01**  **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
689	689
690		-* 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.
691	691
692		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	1045	+* (((
	1046	+(% style="color:#037691" %)** AT Command:**
	1047	+)))
693	693
694		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1049	+**AT+DATAUP=1,Timeout**
695	695
696		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
697	697
698		-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.
	1052	+* (((
	1053	+(% style="color:#037691" %)** Downlink Payload:**
	1054	+)))
699	699
	1056	+**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
700	700
701		-**Example 2:**
	1058	+Each uplink is sent to the server at 20-second intervals when segmented.
702	702
703		-Check TTL Sensor return:
	1060	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
704	704
705		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
706	706
	1063	+(((
	1064	+Ask device to send an uplink immediately.
	1065	+)))
707	707
	1067	+* (((
	1068	+(% style="color:#037691" %)** AT Command:**
	1069	+)))
708	708
	1071	+(((
	1072	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1073	+)))
709	709
710		-==== Set Payload version ====
	1075	+(((
	1076	+
	1077	+)))
711	711
712		-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.
	1079	+* (((
	1080	+(% style="color:#037691" %)** Downlink Payload:**
	1081	+)))
713	713
714		-* AT Command:
	1083	+(((
	1084	+**0x08 FF**, RS485-LN will immediately send an uplink.
	1085	+)))
715	715
716		-AT+PAYVER: Set PAYVER field = 1
717	717
718	718
719		-* Downlink Payload:
720	720
721		-0xAE 01   à Set PAYVER field =  0x01
	1090	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
722	722
723		-0xAE 0F   à Set PAYVER field =  0x0F
724	724
	1093	+(((
	1094	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
725	725
726		-==== Set RS485 Sampling Commands ====
	1096	+
	1097	+)))
727	727
728		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
	1099	+* (((
	1100	+(% style="color:#037691" %)** AT Command:**
	1101	+)))
729	729
730		-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]].
	1103	+(((
	1104	+**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1105	+)))
731	731
	1107	+(((
	1108	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1109	+)))
732	732
733		-* AT Command:
	1111	+(((
	1112	+Example screen shot after clear all RS485 commands.
	1113	+)))
734	734
735		-AT+COMMANDx: Configure RS485 read command to sensor.
	1115	+(((
	1116	+
	1117	+)))
736	736
737		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1119	+(((
	1120	+The uplink screen shot is:
	1121	+)))
738	738
739		-AT+SEARCHx: Configure search command
	1123	+(% 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" %)​
740	740
741	741
742		-* Downlink Payload:
	1126	+* (((
	1127	+(% style="color:#037691" %)** Downlink Payload:**
	1128	+)))
743	743
744		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	1130	+(((
	1131	+**0x09 aa bb** same as AT+CMDEAR=aa,bb
	1132	+)))
745	745
746		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
747	747
748		-Format: AF MM NN LL XX XX XX XX YY
749	749
750		-Where:
751	751
752		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
753		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
754		-* LL: The length of AT+COMMAND or AT+DATACUT command
755		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
756		-* 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.
	1137	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
757	757
758		-Example:
759	759
760		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
	1140	+(((
	1141	+Set the Rs485 serial communication parameters:
761	761
762		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	1143	+
	1144	+)))
763	763
764		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
	1146	+* (((
	1147	+(% style="color:#037691" %)** AT Command:**
	1148	+)))
765	765
	1150	+(((
	1151	+* Set Baud Rate
	1152	+)))
766	766
767		-0xAB downlink command can be used for set AT+SEARCHx
	1154	+**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
768	768
769		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
770	770
771		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
772		-* 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
	1157	+(((
	1158	+* Set UART Parity
	1159	+)))
773	773
774		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	1161	+**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
775	775
776	776
777		-==== Fast command to handle MODBUS device ====
	1164	+(((
	1165	+* Set STOPBIT
	1166	+)))
778	778
779		-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]].
	1168	+**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
780	780
781		-This command is valid since v1.3 firmware version
782	782
783	783
784		-AT+MBFUN has only two value:
	1172	+* (((
	1173	+(% style="color:#037691" %)** Downlink Payload:**
	1174	+)))
785	785
786		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
	1176	+(((
	1177	+**A7 01 aa bb**:  Same  AT+BAUDR=hex(aa bb)*100
	1178	+)))
787	787
788		-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.
	1180	+(((
	1181	+**Example:**
	1182	+)))
789	789
790		-* AT+MBFUN=0: Disable Modbus fast reading.
	1184	+* (((
	1185	+A7 01 00 60   same as AT+BAUDR=9600
	1186	+)))
	1187	+* (((
	1188	+A7 01 04 80  same as AT+BAUDR=115200
	1189	+)))
791	791
792		-Example:
	1191	+(((
	1192	+A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1193	+)))
793	793
794		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
795		-* 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.
796		-* 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.
	1195	+(((
	1196	+A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1197	+)))
797	797
798		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
799	799
	1200	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
800	800
801		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1202	+(((
	1203	+
	1204	+)))
802	802
	1206	+* (((
	1207	+(% style="color:#037691" %)** AT Command:**
	1208	+)))
803	803
804		-* Downlink Commands:
	1210	+**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
805	805
806		-A9 aa -à Same as AT+MBFUN=aa
	1212	+**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
807	807
808	808
809		-==== RS485 command timeout ====
	1215	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
810	810
811		-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.
812	812
813		-Default value: 0, range:  0 ~~ 5 seconds
	1218	+* (((
	1219	+(% style="color:#037691" %)** AT Command:**
	1220	+)))
814	814
	1222	+**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
815	815
816		-* AT Command:
	1224	+**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
817	817
818		-AT+CMDDLaa=hex(bb cc)
819	819
820		-Example:
	1227	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
821	821
822		-**AT+CMDDL1=1000** to send the open time to 1000ms
823	823
	1230	+* (((
	1231	+(% style="color:#037691" %)** AT Command:**
	1232	+)))
824	824
825		-* Downlink Payload:
	1234	+**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)
826	826
827		-0x AA aa bb cc
	1236	+**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.
828	828
829		-Same as: AT+CMDDLaa=hex(bb cc)
830	830
831		- Example:
	1239	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
832	832
833		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
834	834
	1242	+* (((
	1243	+(% style="color:#037691" %)** AT Command:**
	1244	+)))
835	835
836		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
	1246	+ **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)
837	837
838		-Define to use one uplink or multiple uplinks for the sampling.
	1248	+ **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.
839	839
840		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
841	841
842		-* AT Command:
	1251	+* (((
	1252	+(% style="color:#037691" %)** Downlink Payload:**
	1253	+)))
843	843
844		-AT+DATAUP=0
	1255	+**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
845	845
846		-AT+DATAUP=1
847	847
	1258	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
848	848
849		-* Downlink Payload:
850	850
851		-0xAD 00   à Same as AT+DATAUP=0
	1261	+* (((
	1262	+(% style="color:#037691" %)** AT Command:**
	1263	+)))
852	852
853		-0xAD 01   à Same as AT+DATAUP=1
	1265	+**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.
854	854
	1267	+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.
855	855
856		-==== Manually trigger an Uplink ====
	1269	+[[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"]]
857	857
858		-Ask device to send an uplink immediately.
	1271	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
859	859
860		-* Downlink Payload:
	1273	+[[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"]]
861	861
862		-0x08 FF, RS485-BL will immediately send an uplink.
	1275	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
863	863
864	864
865		-==== Clear RS485 Command ====
	1278	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
866	866
867		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
868	868
	1281	+* (((
	1282	+(% style="color:#037691" %)**Downlink Payload:**
869	869
870		-* AT Command:
	1284	+**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1285	+)))
871	871
872		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1287	+Example：
873	873
874		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1289	+[[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"]]
875	875
876		-Example screen shot after clear all RS485 commands.
	1291	+==== ====
877	877
	1293	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
878	878
879	879
880		-The uplink screen shot is:
	1296	+* (((
	1297	+(% style="color:#037691" %)** AT Command:**
	1298	+)))
881	881
882		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1300	+**~ ​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.
883	883
	1302	+**~ ​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.
884	884
885		-* Downlink Payload:
	1304	+ **AT+RXMODE=0,0  ** ~/~/Disable this mode (default)
886	886
887		-0x09 aa bb same as AT+CMDEAR=aa,bb
888	888
	1307	+* (((
	1308	+(% style="color:#037691" %)**Downlink Payload:**
	1309	+)))
889	889
890		-==== Set Serial Communication Parameters ====
	1311	+**A6 aa bb bb                   ** ~/~/same as AT+RXMODE=aa,bb
891	891
892		-Set the Rs485 serial communication parameters:
	1313	+[[image:image-20220824144240-1.png]]
893	893
894		-* AT Command:
895	895
896		-Set Baud Rate:
897	897
898		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1317	+== 3.6 Listening mode for RS485 network ==
899	899
900	900
901		-Set UART parity
	1320	+(((
	1321	+This feature support since firmware v1.4
	1322	+)))
902	902
903		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1324	+(((
	1325	+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.
904	904
	1327	+
	1328	+)))
905	905
906		-Set STOPBIT
	1330	+(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
907	907
908		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1332	+(((
	1333	+To enable the listening mode, use can run the command AT+RXMODE.
	1334	+)))
909	909
	1336	+(((
	1337	+
	1338	+)))
910	910
911		-* Downlink Payload:
	1340	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1341	+|=(% style="width: 100px;" %)(((
	1342	+**Command example**
	1343	+)))|=(% style="width: 400px;" %)(((
	1344	+**Function**
	1345	+)))
	1346	+|(% style="width:100px" %)(((
	1347	+AT+RXMODE=1,10
	1348	+)))|(% style="width:400px" %)(((
	1349	+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.
	1350	+)))
	1351	+|(% style="width:100px" %)(((
	1352	+AT+RXMODE=2,500
	1353	+)))|(% style="width:400px" %)(((
	1354	+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
	1355	+)))
	1356	+|(% style="width:100px" %)(((
	1357	+AT+RXMODE=0,0
	1358	+)))|(% style="width:400px" %)(((
	1359	+Disable listening mode. This is the default settings.
	1360	+)))
	1361	+|(% style="width:100px" %)(((
	1362	+
	1363	+)))|(% style="width:400px" %)(((
	1364	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1365	+)))
912	912
913		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1367	+(((
	1368	+(% style="color:#037691" %)** Downlink Command:**
	1369	+)))
914	914
915		-Example:
	1371	+(((
	1372	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
	1373	+)))
916	916
917		-* A7 01 00 60   same as AT+BAUDR=9600
918		-* A7 01 04 80  same as AT+BAUDR=115200
	1375	+(((
	1376	+
	1377	+)))
919	919
920		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1379	+(((
	1380	+**Example**:
	1381	+)))
921	921
922		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1383	+(((
	1384	+The RS485-LN is set to AT+RXMODE=2,1000
	1385	+)))
923	923
	1387	+(((
	1388	+There is a two Modbus commands in the RS485 network as below:
	1389	+)))
924	924
925		-==== Control output power duration ====
	1391	+(((
	1392	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1393	+)))
926	926
927		-User can set the output power duration before each sampling.
	1395	+(((
	1396	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1397	+)))
928	928
929		-* AT Command:
	1399	+(((
	1400	+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
	1401	+)))
930	930
931		-Example:
	1403	+(((
	1404	+(% 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" %)​
	1405	+)))
932	932
933		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
	1407	+(((
	1408	+
	1409	+)))
934	934
935		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
	1411	+(((
	1412	+(((
	1413	+(% 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.**
	1414	+)))
	1415	+)))
936	936
937	937
938		-* LoRaWAN Downlink Command:
939	939
940		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1419	+== 3.7 Buttons ==
941	941
942		-07 02 aa bb  Same as AT+3V3T=(aa bb)
943	943
	1422	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1423	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1424	+|(% 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**
	1425	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1426	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
944	944
	1428	+== 3.8 LEDs ==
945	945
946	946
947		-1.
948		-11. Buttons
	1431	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1432	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1433	+|**PWR**|Always on if there is power
	1434	+|**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.
949	949
950		-|**Button**|**Feature**
951		-|**RST**|Reboot RS485-BL
	1436	+= 4. Case Study =
952	952
953		-1.
954		-11. +3V3 Output
955	955
956		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
	1439	+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]]
957	957
958		-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.
959	959
960	960
961		-The +3V3 output time can be controlled by AT Command.
	1443	+= 5. Use AT Command =
962	962
963		-**AT+3V3T=1000**
964	964
965		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1446	+== 5.1 Access AT Command ==
966	966
967	967
968		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
	1449	+(((
	1450	+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.
	1451	+)))
969	969
	1453	+(% 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" %)​
970	970
971		-1.
972		-11. +5V Output
973	973
974		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
	1456	+(((
	1457	+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:
	1458	+)))
975	975
976		-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.
	1460	+(% 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" %)​
977	977
978	978
979		-The 5V output time can be controlled by AT Command.
	1463	+(((
	1464	+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/]]
	1465	+)))
980	980
981		-**AT+5VT=1000**
982	982
983		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
984	984
	1469	+== 5.2 Common AT Command Sequence ==
985	985
986		-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.
987	987
	1472	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
988	988
989	989
	1475	+If device has not joined network yet:
990	990
991		-1.
992		-11. LEDs
	1477	+* (% style="color:#037691" %)**AT+FDR**
	1478	+* (% style="color:#037691" %)**AT+NJM=0**
	1479	+* (% style="color:#037691" %)**ATZ**
993	993
994		-|**LEDs**|**Feature**
995		-|**LED1**|Blink when device transmit a packet.
	1481	+(((
	1482	+
996	996
997		-1.
998		-11. Switch Jumper
	1484	+If device already joined network:
999	999
1000		-|**Switch Jumper**|**Feature**
1001		-|**SW1**|(((
1002		-ISP position: Upgrade firmware via UART
	1486	+* (% style="color:#037691" %)**AT+NJM=0**
	1487	+* (% style="color:#037691" %)**ATZ**
1003	1003
1004		-Flash position: Configure device, check running status.
	1489	+
1005	1005	)))
1006		-|**SW2**|(((
1007		-5V position: set to compatible with 5v I/O.
1008	1008
1009		-3.3v position: set to compatible with 3.3v I/O.,
1010		-)))
1011	1011
1012		-+3.3V: is always ON
1013	1013
1014		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1494	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1015	1015
1016		-1. Case Study
1017	1017
1018		-User can check this URL for some case studies.
	1497	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1019	1019
1020		-[[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]]
	1499	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1021	1021
	1501	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1022	1022
	1503	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1023	1023
	1505	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1024	1024
1025		-1. Use AT Command
1026		-11. Access AT Command
	1507	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1027	1027
1028		-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.
	1509	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1029	1029
1030		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1511	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1031	1031
	1513	+(% 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.
1032	1032
1033		-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:
	1515	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1034	1034
1035		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1036	1036
	1518	+(% style="color:red" %)**Note:**
1037	1037
	1520	+(((
	1521	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1522	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1523	+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.
	1524	+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
1038	1038
1039		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
	1526	+
	1527	+)))
1040	1040
	1529	+(% 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" %)​
1041	1041
1042	1042
1043		-1.
1044		-11. Common AT Command Sequence
1045		-111. Multi-channel ABP mode (Use with SX1301/LG308)
1046	1046
1047		-If device has not joined network yet:
	1533	+= 6. FAQ =
1048	1048
1049		-AT+FDR
1050	1050
1051		-AT+NJM=0
	1536	+== 6.1 How to upgrade the image? ==
1052	1052
1053		-ATZ
1054	1054
	1539	+(((
	1540	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1541	+)))
1055	1055
1056		-If device already joined network:
	1543	+* (((
	1544	+Support new features
	1545	+)))
	1546	+* (((
	1547	+For bug fix
	1548	+)))
	1549	+* (((
	1550	+Change LoRaWAN bands.
	1551	+)))
1057	1057
1058		-AT+NJM=0
	1553	+(((
	1554	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1555	+)))
1059	1059
1060		-ATZ
	1557	+(% 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"]]
1061	1061
1062		-1.
1063		-11.
1064		-111. Single-channel ABP mode (Use with LG01/LG02)
	1559	+(% title="Click and drag to resize" %)​
1065	1065
1066		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1561	+(((
	1562	+(% 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]].
	1563	+)))
1067	1067
1068		-AT+NJM=0 Set to ABP mode
	1565	+(((
	1566	+(% 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]].
	1567	+)))
1069	1069
1070		-AT+ADR=0 Set the Adaptive Data Rate Off
	1569	+(((
	1570	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
	1571	+)))
1071	1071
1072		-AT+DR=5  Set Data Rate
	1573	+(((
	1574	+(((
	1575	+(((
	1576	+(% 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.
	1577	+)))
	1578	+)))
	1579	+)))
1073	1073
1074		-AT+TDC=60000  Set transmit interval to 60 seconds
1075	1075
1076		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1582	+(% 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" %)​
1077	1077
1078		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1079	1079
1080		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1585	+(% 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" %)​
1081	1081
1082		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1083	1083
1084		-ATZ          Reset MCU
	1588	+(% 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" %)​
1085	1085
1086		-**Note:**
1087	1087
1088		-1. Make sure the device is set to ABP mode in the IoT Server.
1089		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1090		-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.
1091		-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
	1591	+(% 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:**
1092	1092
1093		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
	1593	+(% 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" %)​
1094	1094
1095	1095
1096		-1. FAQ
1097		-11. How to upgrade the image?
1098	1098
1099		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1597	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1100	1100
1101		-* Support new features
1102		-* For bug fix
1103		-* Change LoRaWAN bands.
1104	1104
1105		-Below shows the hardware connection for how to upload an image to RS485-BL:
	1600	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1106	1106
1107		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1108	1108
1109		-**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]].
1110	1110
1111		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1604	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1112	1112
1113		-**Step3: **Open flashloader; choose the correct COM port to update.
1114	1114
	1607	+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"]].
1115	1115
1116		-|(((
1117		-HOLD PRO then press the RST button, SYS will be ON, then click next
1118		-)))
1119	1119
1120		-|(((
1121		-Board detected
1122		-)))
1123	1123
1124		-|(((
1125		-
1126		-)))
	1611	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1127	1127
1128		-[[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]]
1129	1129
	1614	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1130	1130
	1616	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1131	1131
1132		-[[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]]
1133	1133
1134	1134
1135		-[[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]]
	1620	+== 6.5 Can i use point to point communication for RS485-LN? ==
1136	1136
1137	1137
1138		-1.
1139		-11. How to change the LoRa Frequency Bands/Region?
	1623	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1140	1140
1141		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1142	1142
1143	1143
	1627	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1144	1144
1145		-1.
1146		-11. How many RS485-Slave can RS485-BL connects?
1147	1147
1148		-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]].
	1630	+[[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/]]
1149	1149
1150	1150
1151	1151
	1634	+= 7. Trouble Shooting =
1152	1152
1153		-1. Trouble Shooting
1154		-11. Downlink doesn’t work, how to solve it?
1155	1155
1156		-Please see this link for debug:
	1637	+== 7.1 Downlink doesn't work, how to solve it? ==
1157	1157
1158		-[[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]]
1159	1159
	1640	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1160	1160
1161	1161
1162		-1.
1163		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1164	1164
1165		-It might about the channels mapping. Please see for detail.
	1644	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1166	1166
1167		-[[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]]
1168	1168
	1647	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1169	1169
1170	1170
1171		-1. Order Info
1172	1172
1173		-**Part Number: RS485-BL-XXX**
	1651	+= 8. Order Info =
1174	1174
1175		-**XXX:**
1176	1176
1177		-* **EU433**: frequency bands EU433
1178		-* **EU868**: frequency bands EU868
1179		-* **KR920**: frequency bands KR920
1180		-* **CN470**: frequency bands CN470
1181		-* **AS923**: frequency bands AS923
1182		-* **AU915**: frequency bands AU915
1183		-* **US915**: frequency bands US915
1184		-* **IN865**: frequency bands IN865
1185		-* **RU864**: frequency bands RU864
1186		-* **KZ865: **frequency bands KZ865
	1654	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1187	1187
1188		-1. Packing Info
	1656	+(% style="color:blue" %)**XXX:**
1189	1189
	1658	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1659	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1660	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1661	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1662	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1663	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1664	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1665	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1666	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1667	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
	1668	+
	1669	+= 9.Packing Info =
	1670	+
	1671	+
1190	1190	**Package Includes**:
1191	1191
1192		-* RS485-BL x 1
	1674	+* RS485-LN x 1
1193	1193	* Stick Antenna for LoRa RF part x 1
1194	1194	* Program cable x 1
1195	1195
...	...	@@ -1200,9 +1200,68 @@
1200	1200	* Package Size / pcs : 14.5 x 8 x 5 cm
1201	1201	* Weight / pcs : 170g
1202	1202
1203		-1. Support
	1685	+= 10. FCC Caution for RS485LN-US915 =
1204	1204
1205		-* 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.
1206		-* 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
1207	1207
1208		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1688	+(((
	1689	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1690	+)))
	1691	+
	1692	+(((
	1693	+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.
	1694	+)))
	1695	+
	1696	+(((
	1697	+
	1698	+)))
	1699	+
	1700	+(((
	1701	+(% style="color:red" %)**IMPORTANT NOTE:**
	1702	+)))
	1703	+
	1704	+(((
	1705	+(% 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:
	1706	+)))
	1707	+
	1708	+(((
	1709	+—Reorient or relocate the receiving antenna.
	1710	+)))
	1711	+
	1712	+(((
	1713	+—Increase the separation between the equipment and receiver.
	1714	+)))
	1715	+
	1716	+(((
	1717	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1718	+)))
	1719	+
	1720	+(((
	1721	+—Consult the dealer or an experienced radio/TV technician for help.
	1722	+)))
	1723	+
	1724	+(((
	1725	+
	1726	+)))
	1727	+
	1728	+(((
	1729	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1730	+)))
	1731	+
	1732	+(((
	1733	+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.
	1734	+)))
	1735	+
	1736	+
	1737	+
	1738	+= 11. Support =
	1739	+
	1740	+
	1741	+* (((
	1742	+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.
	1743	+)))
	1744	+* (((
	1745	+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]].
	1746	+
	1747	+
	1748	+
	1749	+)))

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