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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34	34
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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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38	38
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:**
	85	+(% style="color:#037691" %)**Interface for Model:**
54	54
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
	90	+(% style="color:#037691" %)**LoRa Spec:**
59	59
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 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.
	109	+* Packet engine up to 256 bytes with CRC
78	78
79	79
80	80
81	81	== 1.3 Features ==
82	82
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83	83	* LoRaWAN Class A & Class C protocol (default Class C)
84		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	117	+* 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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93	93
94	94	== 1.4 Applications ==
95	95
	129	+
96	96	* Smart Buildings & Home Automation
97	97	* Logistics and Supply Chain Management
98	98	* Smart Metering
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104	104
105	105	== 1.5 Firmware Change log ==
106	106
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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/]]
108	108
109	109
	145	+
110	110	== 1.6 Hardware Change log ==
111	111
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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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124	124	(((
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.
132	132	)))
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134		-[[image:1653268091319-405.png]]
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138	138
139	139	= 3. Operation Mode =
140	140
	185	+
141	141	== 3.1 How it works? ==
142	142
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143	143	(((
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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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147	147	)))
148	148
149	149	== 3.2 Example to join LoRaWAN network ==
150	150
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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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163	163	)))
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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:
	222	+The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
	223	+
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172		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	228	+(% 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.
	247	+**Add APP EUI in the application.**
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192		-[[image:image-20220519174512-1.png]]
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196		-[[image:image-20220519174512-3.png||height="556" width="724"]]
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198		-[[image:image-20220519174512-4.png]]
	257	+(% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
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	261	+
200	200	You can also choose to create the device manually.
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202		-[[image:1652953542269-423.png||height="710" width="723"]]
	264	+(% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
203	203
204		-Add APP KEY and DEV EUI
205	205
206		-[[image:1652953553383-907.png||height="514" width="724"]]
207	207
	268	+**Add APP KEY and DEV EUI**
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	271	+
	272	+
	273	+
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.
	275	+(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
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	277	+
211	211	)))
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213		-[[image:1652953568895-172.png||height="232" width="724"]]
	280	+(% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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215	215
	283	+
216	216	== 3.3 Configure Commands to read data ==
217	217
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218	218	(((
219	219	(((
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.
	289	+(((
	290	+There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	291	+
	292	+
221	221	)))
	294	+)))
222	222
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
	297	+(((
	298	+(% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
	299	+)))
225	225
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226	226
227	227	)))
228	228	)))
229	229
230		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	306	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
231	231
	308	+
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" %)(((
	311	+
	312	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	313	+|=(% style="width: 110px;" %)(((
236	236	**AT Commands**
237		-)))|(% style="width:305px" %)(((
	315	+)))|=(% style="width: 190px;" %)(((
238	238	**Description**
239		-)))|(% style="width:346px" %)(((
	317	+)))|=(% style="width: 190px;" %)(((
240	240	**Example**
241	241	)))
242		-|(% style="width:128px" %)(((
	320	+|(% style="width:110px" %)(((
243	243	AT+BAUDR
244		-)))|(% style="width:305px" %)(((
	322	+)))|(% style="width:190px" %)(((
245	245	Set the baud rate (for RS485 connection). Default Value is: 9600.
246		-)))|(% style="width:346px" %)(((
	324	+)))|(% 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" %)(((
	333	+|(% style="width:110px" %)(((
256	256	AT+PARITY
257		-)))|(% style="width:305px" %)(((
	335	+)))|(% style="width:190px" %)(((
258	258	Set UART parity (for RS485 connection)
259		-)))|(% style="width:346px" %)(((
	337	+)))|(% 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" %)(((
	346	+|(% style="width:110px" %)(((
269	269	AT+STOPBIT
270		-)))|(% style="width:305px" %)(((
	348	+)))|(% 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" %)(((
	356	+)))|(% style="width:190px" %)(((
279	279	(((
280	280	AT+STOPBIT=0 for 1bit
281	281	)))
...	...	@@ -290,906 +290,1362 @@
290	290	)))
291	291
292	292
	371	+
	372	+
293	293	=== 3.3.2 Configure sensors ===
294	294
	375	+
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.
	378	+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.
	379	+
	380	+
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" %)(((
	384	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	385	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	386	+|AT+CFGDEV|(% style="width:110px" %)(((
	387	+(((
304	304	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	389	+)))
305	305
	391	+(((
306	306	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	393	+)))
307	307
	395	+(((
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
	397	+)))
	398	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
310	310
	400	+
	401	+
	402	+
311	311	=== 3.3.3 Configure read commands for each sampling ===
312	312
	405	+
313	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.
	407	+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.
	408	+
	409	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	410	+
	411	+This section describes how to achieve above goals.
	412	+
	413	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	414	+
	415	+
	416	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	417	+
	418	+
	419	+~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.
	420	+
	421	+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.
	422	+
	423	+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
	424	+
	425	+
	426	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	427	+
	428	+Below are examples for the how above AT Commands works.
	429	+
	430	+
	431	+(% 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:
	432	+
	433	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	434	+|(% style="width:496px" %)(((
	435	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	436	+
	437	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	438	+
	439	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
315	315	)))
316	316
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.
	442	+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.
	443	+
	444	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	445	+
	446	+
	447	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	448	+
	449	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	450	+|(% style="width:510px" %)(((
	451	+**AT+DATACUTx=a,b,c**
	452	+
	453	+* **a: length for the return of AT+COMMAND**
	454	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	455	+* **c: define the position for valid value.  **
319	319	)))
320	320
	458	+**Examples:**
	459	+
	460	+
	461	+* (% style="color:#037691" %)**Grab bytes**
	462	+
	463	+(% 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" %)​
	464	+
	465	+
	466	+
	467	+* (% style="color:#037691" %)**Grab a section**
	468	+
	469	+(% 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" %)​
	470	+
	471	+
	472	+
	473	+* (% style="color:#037691" %)**Grab different sections**
	474	+
	475	+(% 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" %)​
	476	+
	477	+
	478	+
	479	+)))
	480	+
	481	+=== 3.3.4 Compose the uplink payload ===
	482	+
	483	+
321	321	(((
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.
	485	+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.**
	486	+
	487	+
323	323	)))
324	324
325	325	(((
326		-This section describes how to achieve above goals.
	491	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	492	+
	493	+
327	327	)))
328	328
329	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.
	497	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
331	331	)))
332	332
333	333	(((
334		-**Command from RS485-BL to Sensor:**
	501	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
335	335	)))
336	336
337	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.
	505	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	506	+
	507	+
339	339	)))
340	340
	510	+(% 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" %)​
	511	+
	512	+
	513	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
	514	+
	515	+
	516	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	517	+
	518	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	519	+
	520	+
	521	+1. PAYVER: Defined by AT+PAYVER
	522	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	523	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	524	+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
	525	+
	526	+(% 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" %)​
	527	+
	528	+
	529	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	530	+
	531	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	532	+
	533	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	534	+
	535	+DATA3=the rest of Valid value of RETURN10= **30**
	536	+
	537	+
	538	+(% 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:**
	539	+
	540	+
	541	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	542	+
	543	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	544	+
	545	+ * For US915 band, max 11 bytes for each uplink.
	546	+
	547	+ ~* For all other bands: max 51 bytes for each uplink.
	548	+
	549	+(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	550	+
	551	+(% 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)**
	552	+
	553	+
	554	+(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
	555	+
	556	+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**.
	557	+
	558	+
	559	+[[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"]]
	560	+
	561	+
	562	+
	563	+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**.
	564	+
	565	+
	566	+[[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"]]
	567	+
	568	+
	569	+
	570	+Below are the uplink payloads:
	571	+
	572	+
	573	+(% 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" %)​
	574	+
	575	+
	576	+
	577	+=== 3.3.5 Uplink on demand ===
	578	+
	579	+
	580	+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.
	581	+
	582	+(% style="color:blue" %)**Downlink control command:**
	583	+
	584	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	585	+
	586	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	587	+
	588	+
	589	+
	590	+=== 3.3.6 Uplink on Interrupt ===
	591	+
	592	+
	593	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	594	+
	595	+
	596	+(% 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" %)​
	597	+
	598	+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.
	599	+
	600	+
	601	+
	602	+== 3.4 Uplink Payload ==
	603	+
	604	+
	605	+(% 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"]]
	606	+
	607	+(% title="Click and drag to resize" %)​
	608	+
	609	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	610	+
	611	+
	612	+
	613	+== 3.5 Configure RS485-LN via AT or Downlink ==
	614	+
	615	+
341	341	(((
342		-**Handle return from sensors to RS485-BL**:
	617	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
343	343	)))
344	344
345	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**
	621	+There are two kinds of Commands:
347	347	)))
348	348
349	349	* (((
350		-**AT+DATACUT**
	625	+(% 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]]
351	351	)))
352	352
	628	+* (((
	629	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	630	+)))
	631	+
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.
	633	+
355	355	)))
356	356
	636	+
	637	+
	638	+=== 3.5.1 Common Commands ===
	639	+
	640	+
	641	+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]]
	642	+
	643	+
	644	+
	645	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
	646	+
	647	+
	648	+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.
	649	+
	650	+
	651	+(% 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"]]
	652	+
	653	+(% title="Click and drag to resize" %)​
	654	+
	655	+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)
	656	+
	657	+
	658	+
	659	+=== 3.5.3 Sensor related commands ===
	660	+
	661	+
	662	+
	663	+
	664	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	665	+
	666	+
	667	+(((
	668	+This command is used to configure the RS485 devices; they won't be used during sampling.
	669	+)))
	670	+
	671	+(((
	672	+* (% style="color:#037691" %)**AT Command**
	673	+
	674	+(((
	675	+(% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
	676	+)))
	677	+)))
	678	+
	679	+(((
	680	+
	681	+)))
	682	+
357	357	* (((
358		-**AT+SEARCH**
	684	+(% style="color:#037691" %)**Downlink Payload**
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.
	688	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
363	363	)))
364	364
365	365	(((
366		-**Define wait timeout:**
	692	+Where:
367	367	)))
368	368
	695	+* (((
	696	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	697	+)))
	698	+* (((
	699	+NN: The length of RS485 command
	700	+)))
	701	+* (((
	702	+XX XX XX XX: RS485 command total NN bytes
	703	+)))
	704	+* (((
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
	706	+YY: How many bytes will be uplink from the return of this RS485 command,
371	371	)))
372	372
	709	+* (((
	710	+if YY=0, RS485-LN will execute the downlink command without uplink;
	711	+)))
	712	+* (((
	713	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	714	+)))
	715	+* (((
	716	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	717	+)))
	718	+)))
	719	+
373	373	(((
374		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	721	+
	722	+
	723	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
375	375	)))
376	376
377		-**Examples:**
	726	+(((
	727	+To connect a Modbus Alarm with below commands.
	728	+)))
378	378
379		-Below are examples for the how above AT Commands works.
	730	+* (((
	731	+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.
	732	+)))
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:
	734	+* (((
	735	+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.
	736	+)))
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**
	738	+(((
	739	+
386	386
387		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	741	+So if user want to use downlink command to control to RS485 Alarm, he can use:
	742	+)))
388	388
389		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	744	+(((
	745	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
390	390	)))
391	391
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.
	749	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
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.
	753	+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.
398	398	)))
399	399
400	400	(((
401		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	757	+
402	402	)))
403	403
404		-(% border="1" class="table-bordered" %)
405		-|(((
406		-**AT+SEARCHx=aa,xx xx xx xx xx**
	760	+(((
	761	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	762	+)))
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**
	764	+(((
	765	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	766	+)))
410	410
	768	+(((
411	411
412	412	)))
413	413
414		-**Examples:**
	772	+(((
	773	+(((
	774	+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**
	775	+)))
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
	777	+
	778	+)))
417	417
418		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	780	+(((
	781	+ (% 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" %)​
	782	+)))
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]]
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
	787	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
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**
429	429
430		-[[image:1653269438444-278.png]]
	790	+(((
	791	+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.
	792	+)))
431	431
432		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	794	+(((
	795	+* (% style="color:#037691" %)**AT Command:**
433	433
434		-|(((
435		-**AT+DATACUTx=a,b,c**
	797	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
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.  **
	799	+
440	440	)))
441	441
442		-Examples:
	802	+* (((
	803	+(% style="color:#037691" %)**Downlink Payload:**
	804	+)))
443	443
444		-* Grab bytes:
	806	+(((
	807	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	808	+)))
445	445
446		-[[image:1653269551753-223.png||height="311" width="717"]]
	810	+(((
	811	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	812	+)))
447	447
448		-* Grab a section.
449	449
450		-[[image:1653269568276-930.png||height="325" width="718"]]
	815	+1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)
451	451
452		-* Grab different sections.
	817	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
453	453
454		-[[image:1653269593172-426.png||height="303" width="725"]]
455	455
456		-(% style="color:red" %)**Note:**
	820	+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.
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.
459	459
460		-Example:
	823	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
461	461
462		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
463	463
464		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
465	465
466		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
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
	828	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
469	469
470		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
471	471
472		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	831	+(((
	832	+AT+COMMANDx or AT+DATACUTx
	833	+)))
473	473
474		-[[image:1653269618463-608.png]]
	835	+(((
	836	+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"]].
	837	+)))
475	475
476		-=== 3.3.4 Compose the uplink payload ===
	839	+(((
	840	+
	841	+)))
477	477
	843	+* (((
	844	+(% style="color:#037691" %)**AT Command:**
	845	+)))
	846	+
	847	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
	848	+
	849	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
	850	+
	851	+
	852	+* (((
	853	+(% style="color:#037691" %)**Downlink Payload:**
	854	+)))
	855	+
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.**
	857	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	858	+
	859	+
480	480	)))
481	481
482	482	(((
483		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	863	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
	864	+
	865	+
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**.
	869	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
488	488	)))
489	489
490	490	(((
491		-Final Payload is
	873	+Where:
492	492	)))
493	493
	876	+* (((
	877	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	878	+)))
	879	+* (((
	880	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	881	+)))
	882	+* (((
	883	+LL:  The length of AT+COMMAND or AT+DATACUT command
	884	+)))
	885	+* (((
	886	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	887	+)))
	888	+* (((
	889	+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.
	890	+)))
	891	+
494	494	(((
495		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	893	+
	894	+
	895	+**Example:**
496	496	)))
497	497
498	498	(((
499		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	899	+(% 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
500	500	)))
501	501
502		-[[image:1653269759169-150.png||height="513" width="716"]]
	902	+(((
	903	+(% 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**
	904	+)))
503	503
504		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	906	+(((
	907	+(% 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**
	908	+)))
505	505
506		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
507	507
508		-Final Payload is
509	509
510		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
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
	913	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
517	517
518		-[[image:1653269916228-732.png||height="433" width="711"]]
519	519
	916	+(((
	917	+(% style="color:#4472c4" %)** AT+MBFUN**(%%) is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
	918	+)))
520	520
521		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
	920	+(((
	921	+This command is valid since v1.3 firmware version
	922	+)))
522	522
523		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	924	+(((
	925	+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.
	926	+)))
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
	928	+(((
	929	+
	930	+)))
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
	932	+(((
	933	+**Example:**
	934	+)))
528	528
529		-Below are the uplink payloads:
	936	+* (((
	937	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	938	+)))
	939	+* (((
	940	+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.
	941	+)))
	942	+* (((
	943	+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.
530	530
531		-[[image:1653270130359-810.png]]
	945	+
	946	+)))
532	532
	948	+(% 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" %)​
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:**
	950	+(% 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" %)​
535	535
536		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
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).
541	541
542		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	955	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
543	543
544		-=== 3.3.5 Uplink on demand ===
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.
	958	+(((
	959	+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.
	960	+)))
547	547
548		-Downlink control command:
	962	+(((
	963	+Default value: 0, range:  0 ~~ 65 seconds
	964	+)))
549	549
550		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	966	+(((
	967	+* (% style="color:#037691" %)** AT Command:**
551	551
552		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
	969	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	970	+)))
553	553
	972	+(((
	973	+
554	554
	975	+**Example:**
	976	+)))
555	555
556		-1.
557		-11.
558		-111. Uplink on Interrupt
	978	+(((
	979	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	980	+)))
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]]
	982	+(((
	983	+
	984	+)))
561	561
562		-AT+INTMOD=0  Disable Interrupt
	986	+* (((
	987	+(% style="color:#037691" %)** Downlink Payload:**
	988	+)))
563	563
564		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	990	+(((
	991	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	992	+)))
565	565
566		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	994	+(((
	995	+
567	567
568		-AT+INTMOD=3  Interrupt trigger by rising edge.
	997	+**Example:**
	998	+)))
569	569
	1000	+(((
	1001	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	1002	+)))
570	570
571		-1.
572		-11. Uplink Payload
573	573
574		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
575		-|Value|(((
576		-Battery(mV)
577	577
578		-&
579	579
580		-Interrupt _Flag
581		-)))|(((
582		-PAYLOAD_VER
	1007	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
583	583
	1009	+
	1010	+(((
	1011	+Define to use one uplink or multiple uplinks for the sampling.
	1012	+)))
	1013	+
	1014	+(((
	1015	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
	1016	+
584	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.
	1018	+)))
586	586
587		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	1020	+(((
	1021	+* (% style="color:#037691" %)** AT Command:**
588	588
	1023	+(% style="color:#4472c4" %)** AT+DATAUP=0**
589	589
590		-function Decoder(bytes, port) {
	1025	+(% style="color:#4472c4" %)** AT+DATAUP=1**
591	591
592		-~/~/Payload Formats of RS485-BL Deceive
	1027	+
	1028	+)))
593	593
594		-return {
	1030	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
595	595
596		- ~/~/Battery,units:V
	1032	+Each uplink is sent to the server at 20-second intervals when segmented.
597	597
598		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
599	599
600		- ~/~/GPIO_EXTI
	1035	+* (((
	1036	+(% style="color:#037691" %)** Downlink Payload:**
	1037	+)))
601	601
602		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	1039	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
603	603
604		- ~/~/payload of version
	1041	+(% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
605	605
606		- Pay_ver:bytes[2],
607	607
608		- };
	1044	+* (((
	1045	+(% style="color:#037691" %)** AT Command:**
	1046	+)))
609	609
610		- }
	1048	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
611	611
612	612
	1051	+* (((
	1052	+(% style="color:#037691" %)** Downlink Payload:**
	1053	+)))
613	613
	1055	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
614	614
	1057	+Each uplink is sent to the server at 20-second intervals when segmented.
615	615
616	616
617	617
618		-TTN V3 uplink screen shot.
619	619
620		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1062	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
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
	1065	+(((
	1066	+Ask device to send an uplink immediately.
	1067	+)))
626	626
627		-There are two kinds of Commands:
	1069	+* (((
	1070	+(% style="color:#037691" %)** AT Command:**
	1071	+)))
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
	1073	+(((
	1074	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1075	+)))
630	630
631		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	1077	+(((
	1078	+
	1079	+)))
632	632
633		-1.
634		-11.
635		-111. Common Commands:
	1081	+* (((
	1082	+(% style="color:#037691" %)** Downlink Payload:**
	1083	+)))
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]]
	1085	+(((
	1086	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1087	+)))
638	638
639	639
640		-1.
641		-11.
642		-111. Sensor related commands:
643	643
644		-==== Choose Device Type (RS485 or TTL) ====
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.
	1092	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
647	647
648		-* AT Command
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.
	1095	+(((
	1096	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
651	651
652		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	1098	+
	1099	+)))
653	653
	1101	+* (((
	1102	+(% style="color:#037691" %)** AT Command:**
	1103	+)))
654	654
655		-* Downlink Payload
	1105	+(((
	1106	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1107	+)))
656	656
657		-**0A aa**     à same as AT+MOD=aa
	1109	+(((
	1110	+
658	658
	1112	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1113	+)))
659	659
	1115	+(((
	1116	+Example screen shot after clear all RS485 commands.
	1117	+)))
660	660
661		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
	1119	+(((
	1120	+
	1121	+)))
662	662
663		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	1123	+(((
	1124	+The uplink screen shot is:
	1125	+)))
664	664
665		-* AT Command
	1127	+(% 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" %)​
666	666
667		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
668	668
669		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1130	+* (((
	1131	+(% style="color:#037691" %)** Downlink Payload:**
	1132	+)))
670	670
	1134	+(((
	1135	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1136	+)))
671	671
672	672
673		-* Downlink Payload
674	674
675		-Format: A8 MM NN XX XX XX XX YY
676	676
677		-Where:
	1141	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
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:**
	1144	+(((
	1145	+Set the Rs485 serial communication parameters:
685	685
686		-To connect a Modbus Alarm with below commands.
	1147	+
	1148	+)))
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.
	1150	+* (((
	1151	+(% style="color:#037691" %)** AT Command:**
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:
	1154	+
	1155	+)))
693	693
694		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1157	+(((
	1158	+* Set Baud Rate
	1159	+)))
695	695
696		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
	1161	+(% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
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.
699	699
	1164	+(((
	1165	+* Set UART Parity
	1166	+)))
700	700
701		-**Example 2:**
	1168	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
702	702
703		-Check TTL Sensor return:
704	704
705		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1171	+(((
	1172	+* Set STOPBIT
	1173	+)))
706	706
	1175	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
707	707
708	708
709	709
710		-==== Set Payload version ====
	1179	+* (((
	1180	+(% style="color:#037691" %)** Downlink Payload:**
	1181	+)))
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.
	1183	+(((
	1184	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1185	+)))
713	713
714		-* AT Command:
	1187	+(((
	1188	+
715	715
716		-AT+PAYVER: Set PAYVER field = 1
	1190	+**Example:**
	1191	+)))
717	717
	1193	+* (((
	1194	+A7 01 00 60  same as AT+BAUDR=9600
	1195	+)))
	1196	+* (((
	1197	+A7 01 04 80  same as AT+BAUDR=115200
	1198	+)))
718	718
719		-* Downlink Payload:
	1200	+(((
	1201	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1202	+)))
720	720
721		-0xAE 01   à Set PAYVER field =  0x01
	1204	+(((
	1205	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1206	+)))
722	722
723		-0xAE 0F   à Set PAYVER field =  0x0F
724	724
725	725
726		-==== Set RS485 Sampling Commands ====
727	727
728		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
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]].
	1212	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
731	731
	1214	+(((
	1215	+
	1216	+)))
732	732
733		-* AT Command:
	1218	+* (((
	1219	+(% style="color:#037691" %)** AT Command:**
	1220	+)))
734	734
735		-AT+COMMANDx: Configure RS485 read command to sensor.
	1222	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
736	736
737		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1224	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
738	738
739		-AT+SEARCHx: Configure search command
740	740
741	741
742		-* Downlink Payload:
743	743
744		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	1229	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
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
	1232	+* (((
	1233	+(% style="color:#037691" %)** AT Command:**
	1234	+)))
749	749
750		-Where:
	1236	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
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.
	1238	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
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
761	761
762		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
763	763
764		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
	1243	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
765	765
766	766
767		-0xAB downlink command can be used for set AT+SEARCHx
	1246	+* (((
	1247	+(% style="color:#037691" %)** AT Command:**
	1248	+)))
768	768
769		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	1250	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
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
	1252	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
773	773
774		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
775	775
776	776
777		-==== Fast command to handle MODBUS device ====
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]].
	1257	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
780	780
781		-This command is valid since v1.3 firmware version
782	782
	1260	+* (((
	1261	+(% style="color:#037691" %)** AT Command:**
	1262	+)))
783	783
784		-AT+MBFUN has only two value:
	1264	+ (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
785	785
786		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
	1266	+ (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
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.
789	789
790		-* AT+MBFUN=0: Disable Modbus fast reading.
	1269	+* (((
	1270	+(% style="color:#037691" %)** Downlink Payload:**
	1271	+)))
791	791
792		-Example:
	1273	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
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.
797	797
798		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
799	799
800	800
801		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1278	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
802	802
803	803
804		-* Downlink Commands:
	1281	+* (((
	1282	+(% style="color:#037691" %)** AT Command:**
	1283	+)))
805	805
806		-A9 aa -à Same as AT+MBFUN=aa
	1285	+(% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
807	807
808	808
809		-==== RS485 command timeout ====
	1288	+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.
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
	1291	+[[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"]]
814	814
815	815
816		-* AT Command:
817	817
818		-AT+CMDDLaa=hex(bb cc)
	1295	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
819	819
820		-Example:
821	821
822		-**AT+CMDDL1=1000** to send the open time to 1000ms
	1298	+[[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"]]
823	823
824	824
825		-* Downlink Payload:
	1301	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
826	826
827		-0x AA aa bb cc
828	828
829		-Same as: AT+CMDDLaa=hex(bb cc)
830	830
831		- Example:
832	832
833		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
	1306	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
834	834
835	835
836		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
	1309	+(((
	1310	+* (% style="color:#037691" %)**Downlink Payload:**
837	837
838		-Define to use one uplink or multiple uplinks for the sampling.
	1312	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1313	+)))
839	839
840		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
841	841
842		-* AT Command:
	1316	+Example：
843	843
844		-AT+DATAUP=0
845	845
846		-AT+DATAUP=1
	1319	+[[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"]]
847	847
848	848
849		-* Downlink Payload:
850	850
851		-0xAD 00   à Same as AT+DATAUP=0
852	852
853		-0xAD 01   à Same as AT+DATAUP=1
	1324	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
854	854
855	855
856		-==== Manually trigger an Uplink ====
	1327	+* (((
	1328	+(% style="color:#037691" %)** AT Command:**
	1329	+)))
857	857
858		-Ask device to send an uplink immediately.
	1331	+(% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
859	859
860		-* Downlink Payload:
	1333	+(% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
861	861
862		-0x08 FF, RS485-BL will immediately send an uplink.
	1335	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
863	863
864	864
865		-==== Clear RS485 Command ====
	1338	+* (((
	1339	+(% style="color:#037691" %)**Downlink Payload:**
	1340	+)))
866	866
867		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	1342	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
868	868
	1344	+[[image:image-20220824144240-1.png]]
869	869
870		-* AT Command:
871	871
872		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
873	873
874		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1348	+== 3.6 Listening mode for RS485 network ==
875	875
876		-Example screen shot after clear all RS485 commands.
877	877
	1351	+(((
	1352	+This feature support since firmware v1.4
	1353	+)))
878	878
	1355	+(((
	1356	+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.
879	879
880		-The uplink screen shot is:
	1358	+
	1359	+)))
881	881
882		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1361	+(% 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"]]
883	883
	1363	+(% title="Click and drag to resize" %)​
884	884
885		-* Downlink Payload:
	1365	+(((
	1366	+To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
	1367	+)))
886	886
887		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1369	+(((
	1370	+
	1371	+)))
888	888
	1373	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1374	+|=(% style="width: 100px;" %)(((
	1375	+**Command example**
	1376	+)))|=(% style="width: 400px;" %)(((
	1377	+**Function**
	1378	+)))
	1379	+|(% style="width:100px" %)(((
	1380	+AT+RXMODE=1,10
	1381	+)))|(% style="width:400px" %)(((
	1382	+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.
	1383	+)))
	1384	+|(% style="width:100px" %)(((
	1385	+AT+RXMODE=2,500
	1386	+)))|(% style="width:400px" %)(((
	1387	+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
	1388	+)))
	1389	+|(% style="width:100px" %)(((
	1390	+AT+RXMODE=0,0
	1391	+)))|(% style="width:400px" %)(((
	1392	+Disable listening mode. This is the default settings.
	1393	+)))
	1394	+|(% style="width:100px" %)(((
	1395	+
	1396	+)))|(% style="width:400px" %)(((
	1397	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1398	+)))
889	889
890		-==== Set Serial Communication Parameters ====
	1400	+(((
	1401	+
891	891
892		-Set the Rs485 serial communication parameters:
	1403	+(% style="color:#037691" %)**Downlink Command:**
	1404	+)))
893	893
894		-* AT Command:
	1406	+(((
	1407	+(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
	1408	+)))
895	895
896		-Set Baud Rate:
	1410	+(((
	1411	+
	1412	+)))
897	897
898		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1414	+(((
	1415	+**Example**:
	1416	+)))
899	899
	1418	+(((
	1419	+The RS485-LN is set to AT+RXMODE=2,1000
	1420	+)))
900	900
901		-Set UART parity
	1422	+(((
	1423	+There is a two Modbus commands in the RS485 network as below:
	1424	+)))
902	902
903		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1426	+(((
	1427	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1428	+)))
904	904
	1430	+(((
	1431	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1432	+)))
905	905
906		-Set STOPBIT
	1434	+(((
	1435	+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
	1436	+)))
907	907
908		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1438	+(((
	1439	+(% 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" %)​
	1440	+)))
909	909
	1442	+(((
	1443	+
	1444	+)))
910	910
911		-* Downlink Payload:
	1446	+(((
	1447	+(((
	1448	+(% 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.**
	1449	+)))
	1450	+)))
912	912
913		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
914	914
915		-Example:
916	916
917		-* A7 01 00 60   same as AT+BAUDR=9600
918		-* A7 01 04 80  same as AT+BAUDR=115200
	1454	+== 3.7 Buttons ==
919	919
920		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
921	921
922		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1457	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1458	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1459	+|(% 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**
	1460	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1461	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
923	923
924	924
925		-==== Control output power duration ====
926	926
927		-User can set the output power duration before each sampling.
	1465	+== 3.8 LEDs ==
928	928
929		-* AT Command:
930	930
931		-Example:
	1468	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1469	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1470	+|**PWR**|Always on if there is power
	1471	+|**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.
932	932
933		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
934	934
935		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
936	936
	1475	+= 4. Case Study =
937	937
938		-* LoRaWAN Downlink Command:
939	939
940		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1478	+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]]
941	941
942		-07 02 aa bb  Same as AT+3V3T=(aa bb)
943	943
944	944
	1482	+= 5. Use AT Command =
945	945
946	946
947		-1.
948		-11. Buttons
	1485	+== 5.1 Access AT Command ==
949	949
950		-|**Button**|**Feature**
951		-|**RST**|Reboot RS485-BL
952	952
953		-1.
954		-11. +3V3 Output
	1488	+(((
	1489	+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.
955	955
956		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
	1491	+
	1492	+)))
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.
	1494	+(% 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" %)​
959	959
960	960
961		-The +3V3 output time can be controlled by AT Command.
962	962
963		-**AT+3V3T=1000**
	1498	+(((
	1499	+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:
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.
	1501	+
	1502	+)))
966	966
	1504	+(% 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" %)​
967	967
968		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
969	969
	1507	+(((
	1508	+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/]]
	1509	+)))
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.
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.
	1513	+== 5.2 Common AT Command Sequence ==
977	977
978	978
979		-The 5V output time can be controlled by AT Command.
	1516	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
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.
	1519	+If device has not joined network yet:
984	984
	1521	+* (% style="color:#037691" %)**AT+FDR**
	1522	+* (% style="color:#037691" %)**AT+NJM=0**
	1523	+* (% style="color:#037691" %)**ATZ**
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.
	1525	+(((
	1526	+
987	987
	1528	+If device already joined network:
988	988
	1530	+* (% style="color:#037691" %)**AT+NJM=0**
	1531	+* (% style="color:#037691" %)**ATZ**
989	989
	1533	+
	1534	+)))
990	990
991		-1.
992		-11. LEDs
993	993
994		-|**LEDs**|**Feature**
995		-|**LED1**|Blink when device transmit a packet.
996	996
997		-1.
998		-11. Switch Jumper
	1538	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
999	999
1000		-|**Switch Jumper**|**Feature**
1001		-|**SW1**|(((
1002		-ISP position: Upgrade firmware via UART
1003	1003
1004		-Flash position: Configure device, check running status.
1005		-)))
1006		-|**SW2**|(((
1007		-5V position: set to compatible with 5v I/O.
	1541	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1008	1008
1009		-3.3v position: set to compatible with 3.3v I/O.,
1010		-)))
	1543	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1011	1011
1012		-+3.3V: is always ON
	1545	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1013	1013
1014		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1547	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1015	1015
1016		-1. Case Study
	1549	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1017	1017
1018		-User can check this URL for some case studies.
	1551	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
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]]
	1553	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1021	1021
	1555	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1022	1022
	1557	+(% 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.
1023	1023
	1559	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1024	1024
1025		-1. Use AT Command
1026		-11. Access AT Command
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.
	1562	+(% style="color:red" %)**Note:**
1029	1029
1030		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1564	+(((
	1565	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1566	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1567	+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.
	1568	+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
1031	1031
	1570	+
	1571	+)))
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:
	1573	+(% 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" %)​
1034	1034
1035		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1036	1036
1037	1037
	1577	+= 6. FAQ =
1038	1038
1039		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1040	1040
	1580	+== 6.1 How to upgrade the image? ==
1041	1041
1042	1042
1043		-1.
1044		-11. Common AT Command Sequence
1045		-111. Multi-channel ABP mode (Use with SX1301/LG308)
	1583	+(((
	1584	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1585	+)))
1046	1046
1047		-If device has not joined network yet:
	1587	+* (((
	1588	+Support new features
	1589	+)))
	1590	+* (((
	1591	+For bug fix
	1592	+)))
	1593	+* (((
	1594	+Change LoRaWAN bands.
	1595	+)))
1048	1048
1049		-AT+FDR
	1597	+(((
	1598	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1599	+)))
1050	1050
1051		-AT+NJM=0
	1601	+(% 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"]]
1052	1052
1053		-ATZ
	1603	+(% title="Click and drag to resize" %)​
1054	1054
	1605	+(((
	1606	+(% 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]].
1055	1055
1056		-If device already joined network:
	1608	+
	1609	+)))
1057	1057
1058		-AT+NJM=0
	1611	+(((
	1612	+(% 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]].
1059	1059
1060		-ATZ
	1614	+
	1615	+)))
1061	1061
1062		-1.
1063		-11.
1064		-111. Single-channel ABP mode (Use with LG01/LG02)
	1617	+(((
	1618	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1065	1065
1066		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1620	+
	1621	+)))
1067	1067
1068		-AT+NJM=0 Set to ABP mode
	1623	+(((
	1624	+(((
	1625	+(((
	1626	+(% 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.
	1627	+)))
	1628	+)))
	1629	+)))
1069	1069
1070		-AT+ADR=0 Set the Adaptive Data Rate Off
1071	1071
1072		-AT+DR=5  Set Data Rate
	1632	+(% 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" %)​
1073	1073
1074		-AT+TDC=60000  Set transmit interval to 60 seconds
1075	1075
1076		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1635	+(% 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" %)​
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
	1638	+(% 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" %)​
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
	1641	+(% 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:**
1085	1085
1086		-**Note:**
	1643	+(% 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" %)​
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
1092	1092
1093		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1094	1094
	1647	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
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:
	1650	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
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:
1106	1106
1107		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1654	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
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/]].
	1657	+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"]].
1112	1112
1113		-**Step3: **Open flashloader; choose the correct COM port to update.
1114	1114
1115	1115
1116		-|(((
1117		-HOLD PRO then press the RST button, SYS will be ON, then click next
1118		-)))
	1661	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1119	1119
1120		-|(((
1121		-Board detected
1122		-)))
1123	1123
1124		-|(((
1125		-
1126		-)))
	1664	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
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]]
	1666	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1129	1129
1130	1130
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]]
	1670	+== 6.5 Can i use point to point communication for RS485-LN? ==
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]]
	1673	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1136	1136
1137	1137
1138		-1.
1139		-11. How to change the LoRa Frequency Bands/Region?
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.
	1677	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1142	1142
1143	1143
	1680	+[[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/]]
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]].
1149	1149
	1684	+= 7. Trouble Shooting =
1150	1150
1151	1151
	1687	+== 7.1 Downlink doesn't work, how to solve it? ==
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:
	1690	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
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
1160	1160
	1694	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
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.
	1697	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
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
1169	1169
	1701	+= 8. Order Info =
1170	1170
1171		-1. Order Info
1172	1172
1173		-**Part Number: RS485-BL-XXX**
	1704	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1174	1174
1175		-**XXX:**
	1706	+(% style="color:blue" %)**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
	1708	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1709	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1710	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1711	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1712	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1713	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1714	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1715	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1716	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1717	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1187	1187
1188		-1. Packing Info
1189	1189
	1720	+
	1721	+= 9.Packing Info =
	1722	+
	1723	+
1190	1190	**Package Includes**:
1191	1191
1192		-* RS485-BL x 1
	1726	+* RS485-LN x 1
1193	1193	* Stick Antenna for LoRa RF part x 1
1194	1194	* Program cable x 1
1195	1195
...	...	@@ -1200,9 +1200,70 @@
1200	1200	* Package Size / pcs : 14.5 x 8 x 5 cm
1201	1201	* Weight / pcs : 170g
1202	1202
1203		-1. Support
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]]
	1739	+= 10. FCC Caution for RS485LN-US915 =
	1740	+
	1741	+
	1742	+(((
	1743	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1744	+)))
	1745	+
	1746	+(((
	1747	+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.
	1748	+)))
	1749	+
	1750	+(((
	1751	+
	1752	+)))
	1753	+
	1754	+(((
	1755	+(% style="color:red" %)**IMPORTANT NOTE:**
	1756	+)))
	1757	+
	1758	+(((
	1759	+(% 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:
	1760	+)))
	1761	+
	1762	+(((
	1763	+—Reorient or relocate the receiving antenna.
	1764	+)))
	1765	+
	1766	+(((
	1767	+—Increase the separation between the equipment and receiver.
	1768	+)))
	1769	+
	1770	+(((
	1771	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1772	+)))
	1773	+
	1774	+(((
	1775	+—Consult the dealer or an experienced radio/TV technician for help.
	1776	+)))
	1777	+
	1778	+(((
	1779	+
	1780	+)))
	1781	+
	1782	+(((
	1783	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1784	+)))
	1785	+
	1786	+(((
	1787	+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.
	1788	+)))
	1789	+
	1790	+
	1791	+
	1792	+= 11. Support =
	1793	+
	1794	+
	1795	+* (((
	1796	+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.
	1797	+)))
	1798	+* (((
	1799	+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]].
	1800	+
	1801	+
	1802	+
	1803	+)))

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