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

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Details

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Title

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

Author

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1		-XWiki.Xiaoling
	1	+XWiki.Bei

Content

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1		-(% style="text-align:center" %)
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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
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21	21	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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25	25	RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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29	29	(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
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33	33	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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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		-
80		-
81	81	== 1.3 Features ==
82	82
	113	+
83	83	* LoRaWAN Class A & Class C protocol (default Class C)
84		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	115	+* 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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89	89	* Support Modbus protocol
90	90	* Support Interrupt uplink (Since hardware version v1.2)
91	91
92		-
93		-
94	94	== 1.4 Applications ==
95	95
	125	+
96	96	* Smart Buildings & Home Automation
97	97	* Logistics and Supply Chain Management
98	98	* Smart Metering
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100	100	* Smart Cities
101	101	* Smart Factory
102	102
103		-
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/]]
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109	109
	139	+
110	110	== 1.6 Hardware Change log ==
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112	112	(((
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114	114	v1.2: Add External Interrupt Pin.
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116	116	v1.0: Release
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121	121
122	122	= 2. Power ON Device =
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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.
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133	133
134		-[[image:1653268091319-405.png]]
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138	138
139	139	= 3. Operation Mode =
140	140
	179	+
141	141	== 3.1 How it works? ==
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144	144	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
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148	148
149	149	== 3.2 Example to join LoRaWAN network ==
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151	151	Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here.
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153		-[[image:1653268155545-638.png||height="334" width="724"]]
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156	156	(((
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158	158	The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
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161	161	(((
162	162	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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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:
	216	+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:
	217	+
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172		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	222	+(% 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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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.
	241	+**Add APP EUI in the application.**
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192		-[[image:image-20220519174512-1.png]]
	245	+(% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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194		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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196		-[[image:image-20220519174512-3.png||height="556" width="724"]]
	249	+(% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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198		-[[image:image-20220519174512-4.png]]
	251	+(% 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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	255	+
200	200	You can also choose to create the device manually.
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202		-[[image:1652953542269-423.png||height="710" width="723"]]
	258	+(% 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
	262	+**Add APP KEY and DEV EUI**
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	265	+
	266	+
	267	+
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.
	269	+(% 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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211	211	)))
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213		-[[image:1652953568895-172.png||height="232" width="724"]]
	274	+(% 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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	277	+
216	216	== 3.3 Configure Commands to read data ==
217	217
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218	218	(((
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220		-There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	283	+(((
	284	+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.
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	286	+
221	221	)))
	288	+)))
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
	291	+(((
	292	+(% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
225	225	)))
	294	+
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226	226	)))
	298	+)))
227	227
228		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	300	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
229	229
	302	+
230	230	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:
231	231
232		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
233		-|(((
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	306	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	307	+|=(% style="width: 110px;" %)(((
234	234	**AT Commands**
235		-)))|(% style="width:285px" %)(((
	309	+)))|=(% style="width: 190px;" %)(((
236	236	**Description**
237		-)))|(% style="width:347px" %)(((
	311	+)))|=(% style="width: 190px;" %)(((
238	238	**Example**
239	239	)))
240		-|(((
	314	+|(% style="width:110px" %)(((
241	241	AT+BAUDR
242		-)))|(% style="width:285px" %)(((
	316	+)))|(% style="width:190px" %)(((
243	243	Set the baud rate (for RS485 connection). Default Value is: 9600.
244		-)))|(% style="width:347px" %)(((
	318	+)))|(% style="width:190px" %)(((
245	245	(((
246	246	AT+BAUDR=9600
247	247	)))
...	...	@@ -250,11 +250,11 @@
250	250	Options: (1200,2400,4800,14400,19200,115200)
251	251	)))
252	252	)))
253		-|(((
	327	+|(% style="width:110px" %)(((
254	254	AT+PARITY
255		-)))|(% style="width:285px" %)(((
	329	+)))|(% style="width:190px" %)(((
256	256	Set UART parity (for RS485 connection)
257		-)))|(% style="width:347px" %)(((
	331	+)))|(% style="width:190px" %)(((
258	258	(((
259	259	AT+PARITY=0
260	260	)))
...	...	@@ -263,9 +263,9 @@
263	263	Option: 0: no parity, 1: odd parity, 2: even parity
264	264	)))
265	265	)))
266		-|(((
	340	+|(% style="width:110px" %)(((
267	267	AT+STOPBIT
268		-)))|(% style="width:285px" %)(((
	342	+)))|(% style="width:190px" %)(((
269	269	(((
270	270	Set serial stopbit (for RS485 connection)
271	271	)))
...	...	@@ -273,7 +273,7 @@
273	273	(((
274	274
275	275	)))
276		-)))|(% style="width:347px" %)(((
	350	+)))|(% style="width:190px" %)(((
277	277	(((
278	278	AT+STOPBIT=0 for 1bit
279	279	)))
...	...	@@ -289,904 +289,1367 @@
289	289
290	290	=== 3.3.2 Configure sensors ===
291	291
	366	+
292	292	(((
293	293	(((
294		-Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
	369	+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.
	370	+
	371	+
295	295	)))
296	296	)))
297	297
298		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
299		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
300		-|AT+CFGDEV|(% style="width:418px" %)(((
	375	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	376	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	377	+|AT+CFGDEV|(% style="width:110px" %)(((
	378	+(((
301	301	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	380	+)))
302	302
	382	+(((
303	303	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	384	+)))
304	304
	386	+(((
305	305	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
306		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	388	+)))
	389	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
307	307
308	308	=== 3.3.3 Configure read commands for each sampling ===
309	309
	393	+
310	310	(((
311		-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.
	395	+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.
	396	+
	397	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	398	+
	399	+This section describes how to achieve above goals.
	400	+
	401	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	402	+
	403	+
	404	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	405	+
	406	+
	407	+~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.
	408	+
	409	+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.
	410	+
	411	+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
	412	+
	413	+
	414	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	415	+
	416	+Below are examples for the how above AT Commands works.
	417	+
	418	+
	419	+(% 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:
	420	+
	421	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	422	+|(% style="width:496px" %)(((
	423	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	424	+
	425	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	426	+
	427	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
312	312	)))
313	313
314		-(((
315		-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.
	430	+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.
	431	+
	432	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	433	+
	434	+
	435	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	436	+
	437	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	438	+|(% style="width:510px" %)(((
	439	+**AT+DATACUTx=a,b,c**
	440	+
	441	+* **a: length for the return of AT+COMMAND**
	442	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	443	+* **c: define the position for valid value.  **
316	316	)))
317	317
	446	+**Examples:**
	447	+
	448	+
	449	+* (% style="color:#037691" %)**Grab bytes**
	450	+
	451	+(% 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" %)​
	452	+
	453	+
	454	+
	455	+* (% style="color:#037691" %)**Grab a section**
	456	+
	457	+(% 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" %)​
	458	+
	459	+
	460	+
	461	+* (% style="color:#037691" %)**Grab different sections**
	462	+
	463	+(% 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" %)​
	464	+
	465	+
	466	+
	467	+)))
	468	+
	469	+=== 3.3.4 Compose the uplink payload ===
	470	+
	471	+
318	318	(((
319		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	473	+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.**
	474	+
	475	+
320	320	)))
321	321
322	322	(((
323		-This section describes how to achieve above goals.
	479	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	480	+
	481	+
324	324	)))
325	325
326	326	(((
327		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	485	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
328	328	)))
329	329
330	330	(((
331		-**Command from RS485-BL to Sensor:**
	489	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
332	332	)))
333	333
334	334	(((
335		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
	493	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	494	+
	495	+
336	336	)))
337	337
	498	+[[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
	499	+
	500	+
	501	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
	502	+
	503	+
	504	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	505	+
	506	+Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	507	+
	508	+
	509	+1. PAYVER: Defined by AT+PAYVER
	510	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	511	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	512	+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
	513	+
	514	+(% 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" %)​
	515	+
	516	+
	517	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	518	+
	519	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	520	+
	521	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	522	+
	523	+DATA3=the rest of Valid value of RETURN10= **30**
	524	+
	525	+
	526	+(% 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:**
	527	+
	528	+
	529	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	530	+
	531	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	532	+
	533	+ * For US915 band, max 11 bytes for each uplink.
	534	+
	535	+ ~* For all other bands: max 51 bytes for each uplink.
	536	+
	537	+
	538	+(% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	539	+
	540	+(% 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)**
	541	+
	542	+
	543	+
	544	+Below are the uplink payloads:
	545	+
	546	+
	547	+(% 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" %)​
	548	+
	549	+
	550	+
	551	+=== 3.3.5 Uplink on demand ===
	552	+
	553	+
	554	+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.
	555	+
	556	+(% style="color:blue" %)**Downlink control command:**
	557	+
	558	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	559	+
	560	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	561	+
	562	+
	563	+
	564	+=== 3.3.6 Uplink on Interrupt ===
	565	+
	566	+
	567	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	568	+
	569	+
	570	+(% 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" %)​
	571	+
	572	+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.
	573	+
	574	+
	575	+
	576	+== 3.4 Uplink Payload ==
	577	+
	578	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:800px" %)
	579	+|(((
	580	+Size(bytes)
	581	+)))|1|(((
	582	+Length depends on the return from the commands
	583	+)))
	584	+|(((
	585	+Value
	586	+)))|(((
	587	+PAYLOAD_VER
	588	+)))|(((
	589	+If the valid payload is too long and exceed the maximum
	590	+
	591	+support payload length in server, server will show payload not
	592	+
	593	+provided in the LoRaWAN server.
	594	+)))
	595	+
	596	+(% 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"]]
	597	+
	598	+(% title="Click and drag to resize" %)​
	599	+
	600	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	601	+
	602	+
	603	+
	604	+== 3.5 Configure RS485-LN via AT or Downlink ==
	605	+
	606	+
338	338	(((
339		-**Handle return from sensors to RS485-BL**:
	608	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
340	340	)))
341	341
342	342	(((
343		-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**
	612	+There are two kinds of Commands:
344	344	)))
345	345
346	346	* (((
347		-**AT+DATACUT**
	616	+(% 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]]
348	348	)))
349	349
	619	+* (((
	620	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	621	+)))
	622	+
350	350	(((
351		-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.
	624	+
352	352	)))
353	353
	627	+
	628	+
	629	+=== 3.5.1 Common Commands ===
	630	+
	631	+
	632	+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]]
	633	+
	634	+
	635	+
	636	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
	637	+
	638	+
	639	+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.
	640	+
	641	+
	642	+(% 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"]]
	643	+
	644	+(% title="Click and drag to resize" %)​
	645	+
	646	+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)
	647	+
	648	+
	649	+
	650	+=== 3.5.3 Sensor related commands ===
	651	+
	652	+
	653	+
	654	+
	655	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	656	+
	657	+
	658	+(((
	659	+This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
	660	+)))
	661	+
	662	+(((
	663	+* (% style="color:#037691" %)**AT Command**
	664	+
	665	+(((
	666	+(% 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
	667	+)))
	668	+)))
	669	+
	670	+(((
	671	+
	672	+)))
	673	+
354	354	* (((
355		-**AT+SEARCH**
	675	+(% style="color:#037691" %)**Downlink Payload**
356	356	)))
357	357
358	358	(((
359		-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.
	679	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
360	360	)))
361	361
362	362	(((
363		-**Define wait timeout:**
	683	+Where:
364	364	)))
365	365
	686	+* (((
	687	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	688	+)))
	689	+* (((
	690	+NN: The length of RS485 command
	691	+)))
	692	+* (((
	693	+XX XX XX XX: RS485 command total NN bytes
	694	+)))
	695	+* (((
366	366	(((
367		-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
	697	+YY: How many bytes will be uplink from the return of this RS485 command,
368	368	)))
369	369
	700	+* (((
	701	+if YY=0, RS485-LN will execute the downlink command without uplink;
	702	+)))
	703	+* (((
	704	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	705	+)))
	706	+* (((
	707	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	708	+)))
	709	+)))
	710	+
370	370	(((
371		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	712	+
	713	+
	714	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
372	372	)))
373	373
374		-**Examples:**
	717	+(((
	718	+To connect a Modbus Alarm with below commands.
	719	+)))
375	375
376		-Below are examples for the how above AT Commands works.
	721	+* (((
	722	+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.
	723	+)))
377	377
378		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	725	+* (((
	726	+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.
	727	+)))
379	379
380		-(% border="1" class="table-bordered" %)
381		-|(((
382		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	729	+(((
	730	+
383	383
384		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	732	+So if user want to use downlink command to control to RS485 Alarm, he can use:
	733	+)))
385	385
386		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	735	+(((
	736	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
387	387	)))
388	388
389	389	(((
390		-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.
	740	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
391	391	)))
392	392
393	393	(((
394		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	744	+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.
395	395	)))
396	396
397	397	(((
398		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	748	+
399	399	)))
400	400
401		-(% border="1" class="table-bordered" %)
402		-|(((
403		-**AT+SEARCHx=aa,xx xx xx xx xx**
	751	+(((
	752	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	753	+)))
404	404
405		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
406		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
	755	+(((
	756	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	757	+)))
407	407
	759	+(((
408	408
409	409	)))
410	410
411		-**Examples:**
	763	+(((
	764	+(((
	765	+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**
	766	+)))
412	412
413		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	768	+
	769	+)))
414	414
415		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	771	+(((
	772	+ (% 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" %)​
	773	+)))
416	416
417		-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**
418	418
419		-[[image:1653269403619-508.png]]
420	420
421		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
422	422
423		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
	778	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
424	424
425		-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**
426	426
427		-[[image:1653269438444-278.png]]
	781	+(((
	782	+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.
	783	+)))
428	428
429		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	785	+(((
	786	+* (% style="color:#037691" %)**AT Command:**
430	430
431		-|(((
432		-**AT+DATACUTx=a,b,c**
	788	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
433	433
434		-* **a: length for the return of AT+COMMAND**
435		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
436		-* **c: define the position for valid value.  **
	790	+
437	437	)))
438	438
439		-Examples:
	793	+* (((
	794	+(% style="color:#037691" %)**Downlink Payload:**
	795	+)))
440	440
441		-* Grab bytes:
	797	+(((
	798	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	799	+)))
442	442
443		-[[image:1653269551753-223.png||height="311" width="717"]]
	801	+(((
	802	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	803	+)))
444	444
445		-* Grab a section.
446	446
447		-[[image:1653269568276-930.png||height="325" width="718"]]
	806	+**1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
448	448
449		-* Grab different sections.
450	450
451		-[[image:1653269593172-426.png||height="303" width="725"]]
	809	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
452	452
453		-(% style="color:red" %)**Note:**
454	454
455		-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.
456	456
457		-Example:
	813	+**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.**
458	458
459		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
460	460
461		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	816	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
462	462
463		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
464	464
465		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
466	466
467		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
468	468
469		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	821	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
470	470
471		-[[image:1653269618463-608.png]]
472	472
473		-=== 3.3.4 Compose the uplink payload ===
	824	+(((
	825	+AT+COMMANDx or AT+DATACUTx
	826	+)))
474	474
475	475	(((
476		-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.**
	829	+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"]].
477	477	)))
478	478
479	479	(((
480		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	833	+
481	481	)))
482	482
	836	+* (((
	837	+(% style="color:#037691" %)**AT Command:**
	838	+)))
	839	+
	840	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
	841	+
	842	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
	843	+
	844	+
	845	+* (((
	846	+(% style="color:#037691" %)**Downlink Payload:**
	847	+)))
	848	+
483	483	(((
484		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	850	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	851	+
	852	+
485	485	)))
486	486
487	487	(((
488		-Final Payload is
	856	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
	857	+
	858	+
489	489	)))
490	490
491	491	(((
492		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	862	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
493	493	)))
494	494
495	495	(((
496		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	866	+Where:
497	497	)))
498	498
499		-[[image:1653269759169-150.png||height="513" width="716"]]
	869	+* (((
	870	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	871	+)))
	872	+* (((
	873	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	874	+)))
	875	+* (((
	876	+LL:  The length of AT+COMMAND or AT+DATACUT command
	877	+)))
	878	+* (((
	879	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	880	+)))
	881	+* (((
	882	+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.
	883	+)))
500	500
501		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	885	+(((
	886	+
502	502
503		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	888	+**Example:**
	889	+)))
504	504
505		-Final Payload is
	891	+(((
	892	+(% 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
	893	+)))
506	506
507		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	895	+(((
	896	+(% 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**
	897	+)))
508	508
509		-1. Battery Info (2 bytes): Battery voltage
510		-1. PAYVER (1 byte): Defined by AT+PAYVER
511		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
512		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
513		-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
	899	+(((
	900	+(% 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**
	901	+)))
514	514
515		-[[image:1653269916228-732.png||height="433" width="711"]]
516	516
517	517
518		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
519	519
520		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	906	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
521	521
522		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
523	523
524		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	909	+(((
	910	+(% 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]].
	911	+)))
525	525
526		-Below are the uplink payloads:
	913	+(((
	914	+This command is valid since v1.3 firmware version
	915	+)))
527	527
528		-[[image:1653270130359-810.png]]
	917	+(((
	918	+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.
	919	+)))
529	529
	921	+(((
	922	+
	923	+)))
530	530
531		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	925	+(((
	926	+**Example:**
	927	+)))
532	532
533		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	929	+* (((
	930	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	931	+)))
	932	+* (((
	933	+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.
	934	+)))
	935	+* (((
	936	+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.
534	534
535		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	938	+
	939	+)))
536	536
537		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	941	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
538	538
539		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	943	+(% title="Click and drag to resize" %)​
540	540
541		-=== 3.3.5 Uplink on demand ===
	945	+(% 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" %)​
542	542
543		-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.
544	544
545		-Downlink control command:
546	546
547		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
548	548
549		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
	950	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
550	550
551	551
	953	+(((
	954	+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.
	955	+)))
552	552
553		-1.
554		-11.
555		-111. Uplink on Interrupt
	957	+(((
	958	+Default value: 0, range:  0 ~~ 65 seconds
	959	+)))
556	556
557		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	961	+(((
	962	+* (% style="color:#037691" %)** AT Command:**
558	558
559		-AT+INTMOD=0  Disable Interrupt
	964	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	965	+)))
560	560
561		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	967	+(((
	968	+
562	562
563		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	970	+**Example:**
	971	+)))
564	564
565		-AT+INTMOD=3  Interrupt trigger by rising edge.
	973	+(((
	974	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	975	+)))
566	566
	977	+(((
	978	+
	979	+)))
567	567
568		-1.
569		-11. Uplink Payload
	981	+* (((
	982	+(% style="color:#037691" %)** Downlink Payload:**
	983	+)))
570	570
571		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
572		-|Value|(((
573		-Battery(mV)
	985	+(((
	986	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	987	+)))
574	574
575		-&
	989	+(((
	990	+
576	576
577		-Interrupt _Flag
578		-)))|(((
579		-PAYLOAD_VER
	992	+**Example:**
	993	+)))
580	580
581		-
582		-)))|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.
	995	+(((
	996	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	997	+)))
583	583
584		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
585	585
586	586
587		-function Decoder(bytes, port) {
588	588
589		-~/~/Payload Formats of RS485-BL Deceive
	1002	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
590	590
591		-return {
592	592
593		- ~/~/Battery,units:V
	1005	+(((
	1006	+Define to use one uplink or multiple uplinks for the sampling.
	1007	+)))
594	594
595		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
	1009	+(((
	1010	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
596	596
597		- ~/~/GPIO_EXTI
	1012	+
	1013	+)))
598	598
599		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	1015	+(((
	1016	+* (% style="color:#037691" %)** AT Command:**
600	600
601		- ~/~/payload of version
	1018	+(% style="color:#4472c4" %)** AT+DATAUP=0**
602	602
603		- Pay_ver:bytes[2],
	1020	+(% style="color:#4472c4" %)** AT+DATAUP=1**
604	604
605		- };
	1022	+
	1023	+)))
606	606
607		- }
	1025	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
608	608
	1027	+Each uplink is sent to the server at 20-second intervals when segmented.
609	609
610	610
	1030	+* (((
	1031	+(% style="color:#037691" %)** Downlink Payload:**
	1032	+)))
611	611
	1034	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
612	612
	1036	+(% 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.
613	613
614	614
615		-TTN V3 uplink screen shot.
	1039	+* (((
	1040	+(% style="color:#037691" %)** AT Command:**
	1041	+)))
616	616
617		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1043	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
618	618
619		-1.
620		-11. Configure RS485-BL via AT or Downlink
621	621
622		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	1046	+* (((
	1047	+(% style="color:#037691" %)** Downlink Payload:**
	1048	+)))
623	623
624		-There are two kinds of Commands:
	1050	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
625	625
626		-* **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
	1052	+Each uplink is sent to the server at 20-second intervals when segmented.
627	627
628		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
629	629
630		-1.
631		-11.
632		-111. Common Commands:
633	633
634		-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]]
635	635
	1057	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
636	636
637		-1.
638		-11.
639		-111. Sensor related commands:
640	640
641		-==== Choose Device Type (RS485 or TTL) ====
	1060	+(((
	1061	+Ask device to send an uplink immediately.
	1062	+)))
642	642
643		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	1064	+* (((
	1065	+(% style="color:#037691" %)** AT Command:**
	1066	+)))
644	644
645		-* AT Command
	1068	+(((
	1069	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1070	+)))
646	646
647		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	1072	+(((
	1073	+
	1074	+)))
648	648
649		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	1076	+* (((
	1077	+(% style="color:#037691" %)** Downlink Payload:**
	1078	+)))
650	650
	1080	+(((
	1081	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1082	+)))
651	651
652		-* Downlink Payload
653	653
654		-**0A aa**     à same as AT+MOD=aa
655	655
656	656
	1087	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
657	657
658		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
659	659
660		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	1090	+(((
	1091	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
661	661
662		-* AT Command
	1093	+
	1094	+)))
663	663
664		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	1096	+* (((
	1097	+(% style="color:#037691" %)** AT Command:**
	1098	+)))
665	665
666		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1100	+(((
	1101	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1102	+)))
667	667
	1104	+(((
	1105	+
668	668
	1107	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1108	+)))
669	669
670		-* Downlink Payload
	1110	+(((
	1111	+Example screen shot after clear all RS485 commands.
	1112	+)))
671	671
672		-Format: A8 MM NN XX XX XX XX YY
	1114	+(((
	1115	+
	1116	+)))
673	673
674		-Where:
	1118	+(((
	1119	+The uplink screen shot is:
	1120	+)))
675	675
676		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
677		-* NN: The length of RS485 command
678		-* XX XX XX XX: RS485 command total NN bytes
679		-* 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
	1122	+(% 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" %)​
680	680
681		-**Example 1:**
682	682
683		-To connect a Modbus Alarm with below commands.
	1125	+* (((
	1126	+(% style="color:#037691" %)** Downlink Payload:**
	1127	+)))
684	684
685		-* 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.
	1129	+(((
	1130	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1131	+)))
686	686
687		-* 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.
688	688
689		-So if user want to use downlink command to control to RS485 Alarm, he can use:
690	690
691		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
692	692
693		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
	1136	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
694	694
695		-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.
696	696
	1139	+(((
	1140	+Set the Rs485 serial communication parameters:
	1141	+)))
697	697
698		-**Example 2:**
	1143	+(((
	1144	+(% style="color:#037691" %)**AT Command:**
	1145	+)))
699	699
700		-Check TTL Sensor return:
	1147	+(((
	1148	+* Set Baud Rate
	1149	+)))
701	701
702		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1151	+(% 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
703	703
704	704
	1154	+(((
	1155	+* Set UART Parity
	1156	+)))
705	705
	1158	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
706	706
707		-==== Set Payload version ====
708	708
709		-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.
	1161	+(((
	1162	+* Set STOPBIT
	1163	+)))
710	710
711		-* AT Command:
	1165	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
712	712
713		-AT+PAYVER: Set PAYVER field = 1
714	714
	1168	+(((
	1169	+(% style="color:#037691" %)**Downlink Payload:**
	1170	+)))
715	715
716		-* Downlink Payload:
	1172	+(((
	1173	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1174	+)))
717	717
718		-0xAE 01   à Set PAYVER field =  0x01
	1176	+(((
	1177	+**Example:**
	1178	+)))
719	719
720		-0xAE 0F   à Set PAYVER field =  0x0F
	1180	+* (((
	1181	+A7 01 00 60  same as AT+BAUDR=9600
	1182	+)))
	1183	+* (((
	1184	+A7 01 04 80  same as AT+BAUDR=115200
	1185	+)))
721	721
	1187	+(((
	1188	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1189	+)))
722	722
723		-==== Set RS485 Sampling Commands ====
	1191	+(((
	1192	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1193	+)))
724	724
725		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
726	726
727		-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]].
	1196	+==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.1)**(%%) ====
728	728
	1198	+* (((
	1199	+(% style="color:#037691" %)** AT Command:**
	1200	+)))
729	729
730		-* AT Command:
	1202	+**~ AT+DATABIT=7  **~/~/ Set the data bits to 7
731	731
732		-AT+COMMANDx: Configure RS485 read command to sensor.
	1204	+**~ AT+DATABIT=8  **~/~/Set the data bits to 8
733	733
734		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1206	+* (((
	1207	+(% style="color:#037691" %)**Downlink Payload:**
	1208	+)))
735	735
736		-AT+SEARCHx: Configure search command
	1210	+**~ A7 04 07**: Same as  AT+DATABIT=7
737	737
	1212	+**~ A7 04 08**: Same as  AT+DATABIT=8
738	738
739		-* Downlink Payload:
740	740
741		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
742	742
743		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
	1216	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
744	744
745		-Format: AF MM NN LL XX XX XX XX YY
	1218	+(((
	1219	+
	1220	+)))
746	746
747		-Where:
	1222	+* (((
	1223	+(% style="color:#037691" %)** AT Command:**
	1224	+)))
748	748
749		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
750		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
751		-* LL: The length of AT+COMMAND or AT+DATACUT command
752		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
753		-* 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.
	1226	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
754	754
755		-Example:
	1228	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
756	756
757		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
758	758
759		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
760	760
761		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
762	762
	1233	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
763	763
764		-0xAB downlink command can be used for set AT+SEARCHx
765	765
766		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	1236	+* (((
	1237	+(% style="color:#037691" %)** AT Command:**
	1238	+)))
767	767
768		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
769		-* 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
	1240	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
770	770
771		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	1242	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
772	772
773	773
774		-==== Fast command to handle MODBUS device ====
775	775
776		-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]].
777	777
778		-This command is valid since v1.3 firmware version
	1247	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
779	779
780	780
781		-AT+MBFUN has only two value:
	1250	+* (((
	1251	+(% style="color:#037691" %)** AT Command:**
	1252	+)))
782	782
783		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
	1254	+(% 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)
784	784
785		-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.
	1256	+(% 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.
786	786
787		-* AT+MBFUN=0: Disable Modbus fast reading.
788	788
789		-Example:
790	790
791		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
792		-* 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.
793		-* 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.
794	794
795		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
	1261	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
796	796
797	797
798		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1264	+* (((
	1265	+(% style="color:#037691" %)** AT Command:**
	1266	+)))
799	799
	1268	+ (% 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)
800	800
801		-* Downlink Commands:
	1270	+ (% 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.
802	802
803		-A9 aa -à Same as AT+MBFUN=aa
804	804
	1273	+* (((
	1274	+(% style="color:#037691" %)** Downlink Payload:**
	1275	+)))
805	805
806		-==== RS485 command timeout ====
	1277	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
807	807
808		-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.
809	809
810		-Default value: 0, range:  0 ~~ 5 seconds
811	811
812	812
813		-* AT Command:
	1282	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
814	814
815		-AT+CMDDLaa=hex(bb cc)
816	816
817		-Example:
	1285	+* (((
	1286	+(% style="color:#037691" %)** AT Command:**
	1287	+)))
818	818
819		-**AT+CMDDL1=1000** to send the open time to 1000ms
	1289	+(% 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.
820	820
821	821
822		-* Downlink Payload:
	1292	+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.
823	823
824		-0x AA aa bb cc
825	825
826		-Same as: AT+CMDDLaa=hex(bb cc)
	1295	+[[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"]]
827	827
828		- Example:
829	829
830		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
831	831
	1299	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
832	832
833		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
834	834
835		-Define to use one uplink or multiple uplinks for the sampling.
	1302	+[[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"]]
836	836
837		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
838	838
839		-* AT Command:
	1305	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
840	840
841		-AT+DATAUP=0
842	842
843		-AT+DATAUP=1
844	844
845	845
846		-* Downlink Payload:
	1310	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
847	847
848		-0xAD 00   à Same as AT+DATAUP=0
849	849
850		-0xAD 01   à Same as AT+DATAUP=1
	1313	+(((
	1314	+* (% style="color:#037691" %)**Downlink Payload:**
851	851
	1316	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1317	+)))
852	852
853		-==== Manually trigger an Uplink ====
854	854
855		-Ask device to send an uplink immediately.
	1320	+Example：
856	856
857		-* Downlink Payload:
858	858
859		-0x08 FF, RS485-BL will immediately send an uplink.
	1323	+[[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"]]
860	860
861	861
862		-==== Clear RS485 Command ====
863	863
864		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
865	865
	1328	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
866	866
867		-* AT Command:
868	868
869		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1331	+* (((
	1332	+(% style="color:#037691" %)** AT Command:**
	1333	+)))
870	870
871		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1335	+(% 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.
872	872
873		-Example screen shot after clear all RS485 commands.
	1337	+(% 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.
874	874
	1339	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
875	875
876	876
877		-The uplink screen shot is:
	1342	+* (((
	1343	+(% style="color:#037691" %)**Downlink Payload:**
	1344	+)))
878	878
879		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1346	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
880	880
	1348	+[[image:image-20220824144240-1.png]]
881	881
882		-* Downlink Payload:
883	883
884		-0x09 aa bb same as AT+CMDEAR=aa,bb
885	885
	1352	+== 3.6 Listening mode for RS485 network ==
886	886
887		-==== Set Serial Communication Parameters ====
888	888
889		-Set the Rs485 serial communication parameters:
	1355	+(((
	1356	+This feature support since firmware v1.4
	1357	+)))
890	890
891		-* AT Command:
	1359	+(((
	1360	+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.
892	892
893		-Set Baud Rate:
	1362	+
	1363	+)))
894	894
895		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1365	+(% 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"]]
896	896
	1367	+(% title="Click and drag to resize" %)​
897	897
898		-Set UART parity
	1369	+(((
	1370	+To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
	1371	+)))
899	899
900		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1373	+(((
	1374	+
	1375	+)))
901	901
	1377	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1378	+|=(% style="width: 100px;" %)(((
	1379	+**Command example**
	1380	+)))|=(% style="width: 400px;" %)(((
	1381	+**Function**
	1382	+)))
	1383	+|(% style="width:100px" %)(((
	1384	+AT+RXMODE=1,10
	1385	+)))|(% style="width:400px" %)(((
	1386	+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.
	1387	+)))
	1388	+|(% style="width:100px" %)(((
	1389	+AT+RXMODE=2,500
	1390	+)))|(% style="width:400px" %)(((
	1391	+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
	1392	+)))
	1393	+|(% style="width:100px" %)(((
	1394	+AT+RXMODE=0,0
	1395	+)))|(% style="width:400px" %)(((
	1396	+Disable listening mode. This is the default settings.
	1397	+)))
	1398	+|(% style="width:100px" %)(((
	1399	+
	1400	+)))|(% style="width:400px" %)(((
	1401	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1402	+)))
902	902
903		-Set STOPBIT
	1404	+(((
	1405	+
904	904
905		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1407	+(% style="color:#037691" %)**Downlink Command:**
	1408	+)))
906	906
	1410	+(((
	1411	+(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
	1412	+)))
907	907
908		-* Downlink Payload:
	1414	+(((
	1415	+
	1416	+)))
909	909
910		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1418	+(((
	1419	+**Example**:
	1420	+)))
911	911
912		-Example:
	1422	+(((
	1423	+The RS485-LN is set to AT+RXMODE=2,1000
	1424	+)))
913	913
914		-* A7 01 00 60   same as AT+BAUDR=9600
915		-* A7 01 04 80  same as AT+BAUDR=115200
	1426	+(((
	1427	+There is a two Modbus commands in the RS485 network as below:
	1428	+)))
916	916
917		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1430	+(((
	1431	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1432	+)))
918	918
919		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1434	+(((
	1435	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1436	+)))
920	920
	1438	+(((
	1439	+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
921	921
922		-==== Control output power duration ====
	1441	+
	1442	+)))
923	923
924		-User can set the output power duration before each sampling.
	1444	+(((
	1445	+(% 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" %)​
	1446	+)))
925	925
926		-* AT Command:
	1448	+(((
	1449	+
	1450	+)))
927	927
928		-Example:
	1452	+(((
	1453	+(((
	1454	+(% 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.**
	1455	+)))
	1456	+)))
929	929
930		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
931	931
932		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
933	933
	1460	+== 3.7 Buttons ==
934	934
935		-* LoRaWAN Downlink Command:
936	936
937		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1463	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1464	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1465	+|(% 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**
	1466	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1467	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
938	938
939		-07 02 aa bb  Same as AT+3V3T=(aa bb)
	1469	+== 3.8 LEDs ==
940	940
941	941
	1472	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1473	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1474	+|**PWR**|Always on if there is power
	1475	+|**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.
942	942
	1477	+= 4. Case Study =
943	943
944		-1.
945		-11. Buttons
946	946
947		-|**Button**|**Feature**
948		-|**RST**|Reboot RS485-BL
	1480	+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]]
949	949
950		-1.
951		-11. +3V3 Output
952	952
953		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
954	954
955		-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.
	1484	+= 5. Use AT Command =
956	956
957	957
958		-The +3V3 output time can be controlled by AT Command.
	1487	+== 5.1 Access AT Command ==
959	959
960		-**AT+3V3T=1000**
961	961
962		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1490	+(((
	1491	+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.
963	963
	1493	+
	1494	+)))
964	964
965		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
	1496	+(% 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" %)​
966	966
967	967
968		-1.
969		-11. +5V Output
970	970
971		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
	1500	+(((
	1501	+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:
972	972
973		-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.
	1503	+
	1504	+)))
974	974
	1506	+(% 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" %)​
975	975
976		-The 5V output time can be controlled by AT Command.
977	977
978		-**AT+5VT=1000**
	1509	+(((
	1510	+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/]]
	1511	+)))
979	979
980		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
981	981
982	982
983		-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.
	1515	+== 5.2 Common AT Command Sequence ==
984	984
985	985
	1518	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
986	986
987	987
988		-1.
989		-11. LEDs
	1521	+If device has not joined network yet:
990	990
991		-|**LEDs**|**Feature**
992		-|**LED1**|Blink when device transmit a packet.
	1523	+* (% style="color:#037691" %)**AT+FDR**
	1524	+* (% style="color:#037691" %)**AT+NJM=0**
	1525	+* (% style="color:#037691" %)**ATZ**
993	993
994		-1.
995		-11. Switch Jumper
	1527	+(((
	1528	+
996	996
997		-|**Switch Jumper**|**Feature**
998		-|**SW1**|(((
999		-ISP position: Upgrade firmware via UART
	1530	+If device already joined network:
1000	1000
1001		-Flash position: Configure device, check running status.
1002		-)))
1003		-|**SW2**|(((
1004		-5V position: set to compatible with 5v I/O.
	1532	+* (% style="color:#037691" %)**AT+NJM=0**
	1533	+* (% style="color:#037691" %)**ATZ**
1005	1005
1006		-3.3v position: set to compatible with 3.3v I/O.,
	1535	+
1007	1007	)))
1008	1008
1009		-+3.3V: is always ON
1010	1010
1011		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1012	1012
1013		-1. Case Study
	1540	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1014	1014
1015		-User can check this URL for some case studies.
1016	1016
1017		-[[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]]
	1543	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1018	1018
	1545	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1019	1019
	1547	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1020	1020
	1549	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1021	1021
1022		-1. Use AT Command
1023		-11. Access AT Command
	1551	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1024	1024
1025		-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.
	1553	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1026	1026
1027		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1555	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1028	1028
	1557	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1029	1029
1030		-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:
	1559	+(% 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.
1031	1031
1032		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
	1561	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1033	1033
1034	1034
	1564	+(% style="color:red" %)**Note:**
1035	1035
1036		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
	1566	+(((
	1567	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1568	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1569	+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.
	1570	+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
1037	1037
	1572	+
	1573	+)))
1038	1038
	1575	+(% 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" %)​
1039	1039
1040		-1.
1041		-11. Common AT Command Sequence
1042		-111. Multi-channel ABP mode (Use with SX1301/LG308)
1043	1043
1044		-If device has not joined network yet:
1045	1045
1046		-AT+FDR
	1579	+= 6. FAQ =
1047	1047
1048		-AT+NJM=0
1049	1049
1050		-ATZ
	1582	+== 6.1 How to upgrade the image? ==
1051	1051
1052	1052
1053		-If device already joined network:
	1585	+(((
	1586	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1587	+)))
1054	1054
1055		-AT+NJM=0
	1589	+* (((
	1590	+Support new features
	1591	+)))
	1592	+* (((
	1593	+For bug fix
	1594	+)))
	1595	+* (((
	1596	+Change LoRaWAN bands.
	1597	+)))
1056	1056
1057		-ATZ
	1599	+(((
	1600	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1601	+)))
1058	1058
1059		-1.
1060		-11.
1061		-111. Single-channel ABP mode (Use with LG01/LG02)
	1603	+(% 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"]]
1062	1062
1063		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1605	+(% title="Click and drag to resize" %)​
1064	1064
1065		-AT+NJM=0 Set to ABP mode
	1607	+(((
	1608	+(% 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]].
1066	1066
1067		-AT+ADR=0 Set the Adaptive Data Rate Off
	1610	+
	1611	+)))
1068	1068
1069		-AT+DR=5  Set Data Rate
	1613	+(((
	1614	+(% 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]].
1070	1070
1071		-AT+TDC=60000  Set transmit interval to 60 seconds
	1616	+
	1617	+)))
1072	1072
1073		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1619	+(((
	1620	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1074	1074
1075		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
	1622	+
	1623	+)))
1076	1076
1077		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1625	+(((
	1626	+(((
	1627	+(((
	1628	+(% 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.
	1629	+)))
	1630	+)))
	1631	+)))
1078	1078
1079		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1080	1080
1081		-ATZ          Reset MCU
	1634	+(% 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" %)​
1082	1082
1083		-**Note:**
1084	1084
1085		-1. Make sure the device is set to ABP mode in the IoT Server.
1086		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1087		-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.
1088		-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
	1637	+(% 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" %)​
1089	1089
1090		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1091	1091
	1640	+(% 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" %)​
1092	1092
1093		-1. FAQ
1094		-11. How to upgrade the image?
1095	1095
1096		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1643	+(% 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:**
1097	1097
1098		-* Support new features
1099		-* For bug fix
1100		-* Change LoRaWAN bands.
	1645	+(% 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" %)​
1101	1101
1102		-Below shows the hardware connection for how to upload an image to RS485-BL:
1103	1103
1104		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1105	1105
1106		-**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]].
	1649	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1107	1107
1108		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1109	1109
1110		-**Step3: **Open flashloader; choose the correct COM port to update.
	1652	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1111	1111
1112	1112
1113		-|(((
1114		-HOLD PRO then press the RST button, SYS will be ON, then click next
1115		-)))
1116	1116
1117		-|(((
1118		-Board detected
1119		-)))
	1656	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1120	1120
1121		-|(((
1122		-
1123		-)))
1124	1124
1125		-[[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]]
	1659	+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"]].
1126	1126
1127	1127
1128	1128
1129		-[[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]]
	1663	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1130	1130
1131	1131
1132		-[[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]]
	1666	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1133	1133
	1668	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1134	1134
1135		-1.
1136		-11. How to change the LoRa Frequency Bands/Region?
1137	1137
1138		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1139	1139
	1672	+== 6.5 Can i use point to point communication for RS485-LN? ==
1140	1140
1141	1141
1142		-1.
1143		-11. How many RS485-Slave can RS485-BL connects?
	1675	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1144	1144
1145		-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]].
1146	1146
1147	1147
	1679	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1148	1148
1149	1149
1150		-1. Trouble Shooting
1151		-11. Downlink doesn’t work, how to solve it?
	1682	+[[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/]]
1152	1152
1153		-Please see this link for debug:
1154	1154
1155		-[[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]]
1156	1156
	1686	+= 7. Trouble Shooting =
1157	1157
1158	1158
1159		-1.
1160		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
	1689	+== 7.1 Downlink doesn't work, how to solve it? ==
1161	1161
1162		-It might about the channels mapping. Please see for detail.
1163	1163
1164		-[[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]]
	1692	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1165	1165
1166	1166
1167	1167
1168		-1. Order Info
	1696	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1169	1169
1170		-**Part Number: RS485-BL-XXX**
1171	1171
1172		-**XXX:**
	1699	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1173	1173
1174		-* **EU433**: frequency bands EU433
1175		-* **EU868**: frequency bands EU868
1176		-* **KR920**: frequency bands KR920
1177		-* **CN470**: frequency bands CN470
1178		-* **AS923**: frequency bands AS923
1179		-* **AU915**: frequency bands AU915
1180		-* **US915**: frequency bands US915
1181		-* **IN865**: frequency bands IN865
1182		-* **RU864**: frequency bands RU864
1183		-* **KZ865: **frequency bands KZ865
1184	1184
1185		-1. Packing Info
1186	1186
	1703	+= 8. Order Info =
	1704	+
	1705	+
	1706	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
	1707	+
	1708	+(% style="color:blue" %)**XXX:**
	1709	+
	1710	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1711	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1712	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1713	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1714	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1715	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1716	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1717	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1718	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1719	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
	1720	+
	1721	+= 9.Packing Info =
	1722	+
	1723	+
1187	1187	**Package Includes**:
1188	1188
1189		-* RS485-BL x 1
	1726	+* RS485-LN x 1
1190	1190	* Stick Antenna for LoRa RF part x 1
1191	1191	* Program cable x 1
1192	1192
...	...	@@ -1197,9 +1197,68 @@
1197	1197	* Package Size / pcs : 14.5 x 8 x 5 cm
1198	1198	* Weight / pcs : 170g
1199	1199
1200		-1. Support
	1737	+= 10. FCC Caution for RS485LN-US915 =
1201	1201
1202		-* 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.
1203		-* 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
1204	1204
1205		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1740	+(((
	1741	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1742	+)))
	1743	+
	1744	+(((
	1745	+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.
	1746	+)))
	1747	+
	1748	+(((
	1749	+
	1750	+)))
	1751	+
	1752	+(((
	1753	+(% style="color:red" %)**IMPORTANT NOTE:**
	1754	+)))
	1755	+
	1756	+(((
	1757	+(% 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:
	1758	+)))
	1759	+
	1760	+(((
	1761	+—Reorient or relocate the receiving antenna.
	1762	+)))
	1763	+
	1764	+(((
	1765	+—Increase the separation between the equipment and receiver.
	1766	+)))
	1767	+
	1768	+(((
	1769	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1770	+)))
	1771	+
	1772	+(((
	1773	+—Consult the dealer or an experienced radio/TV technician for help.
	1774	+)))
	1775	+
	1776	+(((
	1777	+
	1778	+)))
	1779	+
	1780	+(((
	1781	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1782	+)))
	1783	+
	1784	+(((
	1785	+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.
	1786	+)))
	1787	+
	1788	+
	1789	+
	1790	+= 11. Support =
	1791	+
	1792	+
	1793	+* (((
	1794	+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.
	1795	+)))
	1796	+* (((
	1797	+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]].
	1798	+
	1799	+
	1800	+
	1801	+)))

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