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

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Details

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

Content

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1		-(% style="text-align:center" %)
2		-[[image:1653266934636-343.png||height="385" width="385"]]
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5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7	7
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9	9	**Table of Contents:**
10	10
	17	+{{toc/}}
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15	15	= 1.Introduction =
16	16
	33	+
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
18	18
19	19	(((
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21	21	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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25	25	RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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29	29	(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
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33	33	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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34	34
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35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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39		-[[image:1653267211009-519.png||height="419" width="724"]]
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	73	+
42	42	== 1.2 Specifications ==
43	43
44	44
45		-**Hardware System:**
	77	+(% style="color:#037691" %)**Hardware System:**
46	46
47	47	* STM32L072CZT6 MCU
48	48	* SX1276/78 Wireless Chip
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50	50	** Idle: 32mA@12v
51	51	** 20dB Transmit: 65mA@12v
52	52
53		-**Interface for Model:**
54	54
	86	+(% style="color:#037691" %)**Interface for Model:**
	87	+
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
59	59
	92	+(% style="color:#037691" %)**LoRa Spec:**
	93	+
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 Mhz
62	62	** Band 2 (LF): 410 ~~ 528 Mhz
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74	74	* Preamble detection.
75	75	* 127 dB Dynamic Range RSSI.
76	76	* Automatic RF Sense and CAD with ultra-fast AFC.
77		-* Packet engine up to 256 bytes with CRC.
	111	+* Packet engine up to 256 bytes with CRC
78	78
79	79
80	80
81	81	== 1.3 Features ==
82	82
	117	+
83	83	* LoRaWAN Class A & Class C protocol (default Class C)
84		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	119	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
85	85	* AT Commands to change parameters
86	86	* Remote configure parameters via LoRa Downlink
87	87	* Firmware upgradable via program port
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93	93
94	94	== 1.4 Applications ==
95	95
	131	+
96	96	* Smart Buildings & Home Automation
97	97	* Logistics and Supply Chain Management
98	98	* Smart Metering
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104	104
105	105	== 1.5 Firmware Change log ==
106	106
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107	107	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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109	109
	147	+
110	110	== 1.6 Hardware Change log ==
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112	112	(((
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114	114	v1.2: Add External Interrupt Pin.
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116	116	v1.0: Release
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121	121
122	122	= 2. Power ON Device =
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125	125	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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131	131	Once there is power, the RS485-LN will be on.
132	132	)))
133	133
134		-[[image:1653268091319-405.png]]
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138	138
139	139	= 3. Operation Mode =
140	140
	187	+
141	141	== 3.1 How it works? ==
142	142
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143	143	(((
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144	144	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
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	199	+
147	147	== 3.2 Example to join LoRaWAN network ==
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149	149	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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151		-[[image:1653268155545-638.png||height="334" width="724"]]
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153	153	(((
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154	154	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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156	156	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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158		-[[image:1653268227651-549.png||height="592" width="720"]]
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160	160	(((
161		-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:
	224	+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:
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162	162	)))
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165		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	230	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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173		-[[image:1652953462722-299.png]]
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175	175	(((
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177	177	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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181		-Add APP EUI in the application.
	249	+**Add APP EUI in the application.**
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185		-[[image:image-20220519174512-1.png]]
	253	+(% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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187		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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189		-[[image:image-20220519174512-3.png||height="556" width="724"]]
	257	+(% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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191		-[[image:image-20220519174512-4.png]]
	259	+(% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
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	263	+
193	193	You can also choose to create the device manually.
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195		-[[image:1652953542269-423.png||height="710" width="723"]]
	266	+(% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
196	196
197		-Add APP KEY and DEV EUI
198	198
199		-[[image:1652953553383-907.png||height="514" width="724"]]
200	200
	270	+**Add APP KEY and DEV EUI**
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	273	+
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202	202	(((
203		-**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.
	277	+(% 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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	279	+
204	204	)))
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206		-[[image:1652953568895-172.png||height="232" width="724"]]
	282	+(% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
207	207
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	285	+
208	208	== 3.3 Configure Commands to read data ==
209	209
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210	210	(((
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212		-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.
	291	+(((
	292	+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.
	293	+
	294	+
213	213	)))
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215	215	(((
216		-(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
	299	+(((
	300	+(% 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**
217	217	)))
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219	219
220		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	308	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
221	221
	310	+
222	222	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:
223	223
224		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
225		-|(((
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	314	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	315	+|=(% style="width: 110px;" %)(((
226	226	**AT Commands**
227		-)))|(% style="width:285px" %)(((
	317	+)))|=(% style="width: 190px;" %)(((
228	228	**Description**
229		-)))|(% style="width:347px" %)(((
	319	+)))|=(% style="width: 190px;" %)(((
230	230	**Example**
231	231	)))
232		-|(((
	322	+|(% style="width:110px" %)(((
233	233	AT+BAUDR
234		-)))|(% style="width:285px" %)(((
	324	+)))|(% style="width:190px" %)(((
235	235	Set the baud rate (for RS485 connection). Default Value is: 9600.
236		-)))|(% style="width:347px" %)(((
	326	+)))|(% style="width:190px" %)(((
237	237	(((
238	238	AT+BAUDR=9600
239	239	)))
...	...	@@ -242,11 +242,11 @@
242	242	Options: (1200,2400,4800,14400,19200,115200)
243	243	)))
244	244	)))
245		-|(((
	335	+|(% style="width:110px" %)(((
246	246	AT+PARITY
247		-)))|(% style="width:285px" %)(((
	337	+)))|(% style="width:190px" %)(((
248	248	Set UART parity (for RS485 connection)
249		-)))|(% style="width:347px" %)(((
	339	+)))|(% style="width:190px" %)(((
250	250	(((
251	251	AT+PARITY=0
252	252	)))
...	...	@@ -255,9 +255,9 @@
255	255	Option: 0: no parity, 1: odd parity, 2: even parity
256	256	)))
257	257	)))
258		-|(((
	348	+|(% style="width:110px" %)(((
259	259	AT+STOPBIT
260		-)))|(% style="width:285px" %)(((
	350	+)))|(% style="width:190px" %)(((
261	261	(((
262	262	Set serial stopbit (for RS485 connection)
263	263	)))
...	...	@@ -265,7 +265,7 @@
265	265	(((
266	266
267	267	)))
268		-)))|(% style="width:347px" %)(((
	358	+)))|(% style="width:190px" %)(((
269	269	(((
270	270	AT+STOPBIT=0 for 1bit
271	271	)))
...	...	@@ -279,906 +279,1359 @@
279	279	)))
280	280	)))
281	281
	372	+
282	282	=== 3.3.2 Configure sensors ===
283	283
	375	+
284	284	(((
285	285	(((
286		-Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
	378	+Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
	379	+
	380	+
287	287	)))
288	288	)))
289	289
290		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
291		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
292		-|AT+CFGDEV|(% style="width:418px" %)(((
	384	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	385	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	386	+|AT+CFGDEV|(% style="width:110px" %)(((
	387	+(((
293	293	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	389	+)))
294	294
	391	+(((
295	295	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	393	+)))
296	296
	395	+(((
297	297	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
298		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	397	+)))
	398	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
299	299
	400	+
300	300	=== 3.3.3 Configure read commands for each sampling ===
301	301
	403	+
302	302	(((
303		-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.
	405	+During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
	406	+
	407	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	408	+
	409	+This section describes how to achieve above goals.
	410	+
	411	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	412	+
	413	+
	414	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	415	+
	416	+
	417	+~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
	418	+
	419	+2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
	420	+
	421	+3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
	422	+
	423	+
	424	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	425	+
	426	+Below are examples for the how above AT Commands works.
	427	+
	428	+
	429	+(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
	430	+
	431	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	432	+|(% style="width:496px" %)(((
	433	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	434	+
	435	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	436	+
	437	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
304	304	)))
305	305
306		-(((
307		-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.
	440	+For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
	441	+
	442	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	443	+
	444	+
	445	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	446	+
	447	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	448	+|(% style="width:510px" %)(((
	449	+**AT+DATACUTx=a,b,c**
	450	+
	451	+* **a: length for the return of AT+COMMAND**
	452	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	453	+* **c: define the position for valid value.  **
308	308	)))
309	309
	456	+**Examples:**
	457	+
	458	+
	459	+* (% style="color:#037691" %)**Grab bytes**
	460	+
	461	+(% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	462	+
	463	+
	464	+
	465	+* (% style="color:#037691" %)**Grab a section**
	466	+
	467	+(% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	468	+
	469	+
	470	+
	471	+* (% style="color:#037691" %)**Grab different sections**
	472	+
	473	+(% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	474	+
	475	+
	476	+
	477	+)))
	478	+
	479	+=== 3.3.4 Compose the uplink payload ===
	480	+
	481	+
310	310	(((
311		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	483	+Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
	484	+
	485	+
312	312	)))
313	313
314	314	(((
315		-This section describes how to achieve above goals.
	489	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	490	+
	491	+
316	316	)))
317	317
318	318	(((
319		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	495	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
320	320	)))
321	321
322	322	(((
323		-**Command from RS485-BL to Sensor:**
	499	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
324	324	)))
325	325
326	326	(((
327		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
	503	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	504	+
	505	+
328	328	)))
329	329
	508	+(% aria-label="1653269759169-150.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653269759169-150.png||data-widget="image" height="513" width="716"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	509	+
	510	+
	511	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
	512	+
	513	+
	514	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	515	+
	516	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	517	+
	518	+
	519	+1. PAYVER: Defined by AT+PAYVER
	520	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	521	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	522	+1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
	523	+
	524	+(% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	525	+
	526	+
	527	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	528	+
	529	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	530	+
	531	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	532	+
	533	+DATA3=the rest of Valid value of RETURN10= **30**
	534	+
	535	+
	536	+(% style="color:red" %)**Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:**
	537	+
	538	+
	539	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	540	+
	541	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	542	+
	543	+ * For US915 band, max 11 bytes for each uplink.
	544	+
	545	+ ~* For all other bands: max 51 bytes for each uplink.
	546	+
	547	+(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	548	+
	549	+(% 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)**
	550	+
	551	+
	552	+(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
	553	+
	554	+1 )  When (% style="color:blue" %)**AT+MOD=1**(%%), if the data intercepted by** AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n FFs**.
	555	+
	556	+
	557	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114359-3.png?width=1106&height=297&rev=1.1||alt="image-20220824114359-3.png" height="297" width="1106"]]
	558	+
	559	+
	560	+
	561	+2 )  When (% style="color:blue" %)**AT+MOD=2**(%%), if the data intercepted by **AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n 00s**.
	562	+
	563	+
	564	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114330-2.png?rev=1.1||alt="image-20220824114330-2.png"]]
	565	+
	566	+
	567	+
	568	+Below are the uplink payloads:
	569	+
	570	+
	571	+(% 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" %)​
	572	+
	573	+
	574	+
	575	+=== 3.3.5 Uplink on demand ===
	576	+
	577	+
	578	+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.
	579	+
	580	+(% style="color:blue" %)**Downlink control command:**
	581	+
	582	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	583	+
	584	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	585	+
	586	+
	587	+
	588	+=== 3.3.6 Uplink on Interrupt ===
	589	+
	590	+
	591	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	592	+
	593	+
	594	+(% 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" %)​
	595	+
	596	+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.
	597	+
	598	+
	599	+
	600	+== 3.4 Uplink Payload ==
	601	+
	602	+
	603	+(% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
	604	+
	605	+(% title="Click and drag to resize" %)​
	606	+
	607	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	608	+
	609	+
	610	+
	611	+== 3.5 Configure RS485-LN via AT or Downlink ==
	612	+
	613	+
330	330	(((
331		-**Handle return from sensors to RS485-BL**:
	615	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
332	332	)))
333	333
334	334	(((
335		-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**
	619	+There are two kinds of Commands:
336	336	)))
337	337
338	338	* (((
339		-**AT+DATACUT**
	623	+(% 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]]
340	340	)))
341	341
	626	+* (((
	627	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	628	+)))
	629	+
342	342	(((
343		-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.
	631	+
344	344	)))
345	345
	634	+
	635	+
	636	+=== 3.5.1 Common Commands ===
	637	+
	638	+
	639	+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]]
	640	+
	641	+
	642	+
	643	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
	644	+
	645	+
	646	+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.
	647	+
	648	+
	649	+(% 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"]]
	650	+
	651	+(% title="Click and drag to resize" %)​
	652	+
	653	+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)
	654	+
	655	+
	656	+
	657	+=== 3.5.3 Sensor related commands ===
	658	+
	659	+
	660	+
	661	+
	662	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	663	+
	664	+
	665	+(((
	666	+This command is used to configure the RS485 devices; they won't be used during sampling.
	667	+)))
	668	+
	669	+(((
	670	+* (% style="color:#037691" %)**AT Command**
	671	+
	672	+(((
	673	+(% 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
	674	+)))
	675	+)))
	676	+
	677	+(((
	678	+
	679	+)))
	680	+
346	346	* (((
347		-**AT+SEARCH**
	682	+(% style="color:#037691" %)**Downlink Payload**
348	348	)))
349	349
350	350	(((
351		-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.
	686	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
352	352	)))
353	353
354	354	(((
355		-**Define wait timeout:**
	690	+Where:
356	356	)))
357	357
	693	+* (((
	694	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	695	+)))
	696	+* (((
	697	+NN: The length of RS485 command
	698	+)))
	699	+* (((
	700	+XX XX XX XX: RS485 command total NN bytes
	701	+)))
	702	+* (((
358	358	(((
359		-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
	704	+YY: How many bytes will be uplink from the return of this RS485 command,
360	360	)))
361	361
	707	+* (((
	708	+if YY=0, RS485-LN will execute the downlink command without uplink;
	709	+)))
	710	+* (((
	711	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	712	+)))
	713	+* (((
	714	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	715	+)))
	716	+)))
	717	+
362	362	(((
363		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	719	+
	720	+
	721	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
364	364	)))
365	365
366		-**Examples:**
	724	+(((
	725	+To connect a Modbus Alarm with below commands.
	726	+)))
367	367
368		-Below are examples for the how above AT Commands works.
	728	+* (((
	729	+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.
	730	+)))
369	369
370		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	732	+* (((
	733	+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.
	734	+)))
371	371
372		-(% border="1" class="table-bordered" %)
373		-|(((
374		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	736	+(((
	737	+
375	375
376		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	739	+So if user want to use downlink command to control to RS485 Alarm, he can use:
	740	+)))
377	377
378		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	742	+(((
	743	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
379	379	)))
380	380
381	381	(((
382		-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.
	747	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
383	383	)))
384	384
385	385	(((
386		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	751	+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.
387	387	)))
388	388
389	389	(((
390		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	755	+
391	391	)))
392	392
393		-(% border="1" class="table-bordered" %)
394		-|(((
395		-**AT+SEARCHx=aa,xx xx xx xx xx**
	758	+(((
	759	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	760	+)))
396	396
397		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
398		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
	762	+(((
	763	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	764	+)))
399	399
	766	+(((
400	400
401	401	)))
402	402
403		-**Examples:**
	770	+(((
	771	+(((
	772	+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**
	773	+)))
404	404
405		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	775	+
	776	+)))
406	406
407		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	778	+(((
	779	+ (% 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" %)​
	780	+)))
408	408
409		-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**
410	410
411		-[[image:1653269403619-508.png]]
412	412
413		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
414	414
415		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
	785	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
416	416
417		-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**
418	418
419		-[[image:1653269438444-278.png]]
	788	+(((
	789	+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.
	790	+)))
420	420
421		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	792	+(((
	793	+* (% style="color:#037691" %)**AT Command:**
422	422
423		-|(((
424		-**AT+DATACUTx=a,b,c**
	795	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
425	425
426		-* **a: length for the return of AT+COMMAND**
427		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
428		-* **c: define the position for valid value.  **
	797	+
429	429	)))
430	430
431		-Examples:
	800	+* (((
	801	+(% style="color:#037691" %)**Downlink Payload:**
	802	+)))
432	432
433		-* Grab bytes:
	804	+(((
	805	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	806	+)))
434	434
435		-[[image:1653269551753-223.png||height="311" width="717"]]
	808	+(((
	809	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	810	+)))
436	436
437		-* Grab a section.
438	438
439		-[[image:1653269568276-930.png||height="325" width="718"]]
	813	+1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)
440	440
441		-* Grab different sections.
	815	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
442	442
443		-[[image:1653269593172-426.png||height="303" width="725"]]
444	444
445		-(% style="color:red" %)**Note:**
	818	+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.
446	446
447		-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.
448	448
449		-Example:
	821	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
450	450
451		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
452	452
453		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
454	454
455		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
456	456
457		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	826	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
458	458
459		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
460	460
461		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	829	+(((
	830	+AT+COMMANDx or AT+DATACUTx
	831	+)))
462	462
463		-[[image:1653269618463-608.png]]
	833	+(((
	834	+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"]].
	835	+)))
464	464
465		-=== 3.3.4 Compose the uplink payload ===
	837	+(((
	838	+
	839	+)))
466	466
	841	+* (((
	842	+(% style="color:#037691" %)**AT Command:**
	843	+)))
	844	+
	845	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
	846	+
	847	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
	848	+
	849	+
	850	+* (((
	851	+(% style="color:#037691" %)**Downlink Payload:**
	852	+)))
	853	+
467	467	(((
468		-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.**
	855	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	856	+
	857	+
469	469	)))
470	470
471	471	(((
472		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	861	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
	862	+
	863	+
473	473	)))
474	474
475	475	(((
476		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	867	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
477	477	)))
478	478
479	479	(((
480		-Final Payload is
	871	+Where:
481	481	)))
482	482
	874	+* (((
	875	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	876	+)))
	877	+* (((
	878	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	879	+)))
	880	+* (((
	881	+LL:  The length of AT+COMMAND or AT+DATACUT command
	882	+)))
	883	+* (((
	884	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	885	+)))
	886	+* (((
	887	+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.
	888	+)))
	889	+
483	483	(((
484		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	891	+
	892	+
	893	+**Example:**
485	485	)))
486	486
487	487	(((
488		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	897	+(% 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
489	489	)))
490	490
491		-[[image:1653269759169-150.png||height="513" width="716"]]
	900	+(((
	901	+(% 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**
	902	+)))
492	492
493		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	904	+(((
	905	+(% 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**
	906	+)))
494	494
495		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
496	496
497		-Final Payload is
498	498
499		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
500	500
501		-1. Battery Info (2 bytes): Battery voltage
502		-1. PAYVER (1 byte): Defined by AT+PAYVER
503		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
504		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
505		-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
	911	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
506	506
507		-[[image:1653269916228-732.png||height="433" width="711"]]
508	508
	914	+(((
	915	+(% 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]].
	916	+)))
509	509
510		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
	918	+(((
	919	+This command is valid since v1.3 firmware version
	920	+)))
511	511
512		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	922	+(((
	923	+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.
	924	+)))
513	513
514		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
	926	+(((
	927	+
	928	+)))
515	515
516		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	930	+(((
	931	+**Example:**
	932	+)))
517	517
518		-Below are the uplink payloads:
	934	+* (((
	935	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	936	+)))
	937	+* (((
	938	+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.
	939	+)))
	940	+* (((
	941	+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.
519	519
520		-[[image:1653270130359-810.png]]
	943	+
	944	+)))
521	521
	946	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% title="Click and drag to resize" %)​
522	522
523		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	948	+(% 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" %)​
524	524
525		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
526	526
527		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
528	528
529		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
530	530
531		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	953	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
532	532
533		-=== 3.3.5 Uplink on demand ===
534	534
535		-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.
	956	+(((
	957	+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.
	958	+)))
536	536
537		-Downlink control command:
	960	+(((
	961	+Default value: 0, range:  0 ~~ 65 seconds
	962	+)))
538	538
539		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	964	+(((
	965	+* (% style="color:#037691" %)** AT Command:**
540	540
541		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
	967	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	968	+)))
542	542
	970	+(((
	971	+
543	543
	973	+**Example:**
	974	+)))
544	544
545		-1.
546		-11.
547		-111. Uplink on Interrupt
	976	+(((
	977	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	978	+)))
548	548
549		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	980	+(((
	981	+
	982	+)))
550	550
551		-AT+INTMOD=0  Disable Interrupt
	984	+* (((
	985	+(% style="color:#037691" %)** Downlink Payload:**
	986	+)))
552	552
553		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	988	+(((
	989	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	990	+)))
554	554
555		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	992	+(((
	993	+
556	556
557		-AT+INTMOD=3  Interrupt trigger by rising edge.
	995	+**Example:**
	996	+)))
558	558
	998	+(((
	999	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	1000	+)))
559	559
560		-1.
561		-11. Uplink Payload
562	562
563		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
564		-|Value|(((
565		-Battery(mV)
566	566
567		-&
568	568
569		-Interrupt _Flag
570		-)))|(((
571		-PAYLOAD_VER
	1005	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
572	572
	1007	+
	1008	+(((
	1009	+Define to use one uplink or multiple uplinks for the sampling.
	1010	+)))
	1011	+
	1012	+(((
	1013	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
	1014	+
573	573
574		-)))|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.
	1016	+)))
575	575
576		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	1018	+(((
	1019	+* (% style="color:#037691" %)** AT Command:**
577	577
	1021	+(% style="color:#4472c4" %)** AT+DATAUP=0**
578	578
579		-function Decoder(bytes, port) {
	1023	+(% style="color:#4472c4" %)** AT+DATAUP=1**
580	580
581		-~/~/Payload Formats of RS485-BL Deceive
	1025	+
	1026	+)))
582	582
583		-return {
	1028	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
584	584
585		- ~/~/Battery,units:V
	1030	+Each uplink is sent to the server at 20-second intervals when segmented.
586	586
587		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
588	588
589		- ~/~/GPIO_EXTI
	1033	+* (((
	1034	+(% style="color:#037691" %)** Downlink Payload:**
	1035	+)))
590	590
591		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	1037	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
592	592
593		- ~/~/payload of version
	1039	+(% 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.
594	594
595		- Pay_ver:bytes[2],
596	596
597		- };
	1042	+* (((
	1043	+(% style="color:#037691" %)** AT Command:**
	1044	+)))
598	598
599		- }
	1046	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
600	600
601	601
	1049	+* (((
	1050	+(% style="color:#037691" %)** Downlink Payload:**
	1051	+)))
602	602
	1053	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
603	603
	1055	+Each uplink is sent to the server at 20-second intervals when segmented.
604	604
605	605
606	606
607		-TTN V3 uplink screen shot.
608	608
609		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1060	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
610	610
611		-1.
612		-11. Configure RS485-BL via AT or Downlink
613	613
614		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	1063	+(((
	1064	+Ask device to send an uplink immediately.
	1065	+)))
615	615
616		-There are two kinds of Commands:
	1067	+* (((
	1068	+(% style="color:#037691" %)** AT Command:**
	1069	+)))
617	617
618		-* **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
	1071	+(((
	1072	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1073	+)))
619	619
620		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	1075	+(((
	1076	+
	1077	+)))
621	621
622		-1.
623		-11.
624		-111. Common Commands:
	1079	+* (((
	1080	+(% style="color:#037691" %)** Downlink Payload:**
	1081	+)))
625	625
626		-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]]
	1083	+(((
	1084	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1085	+)))
627	627
628	628
629		-1.
630		-11.
631		-111. Sensor related commands:
632	632
633		-==== Choose Device Type (RS485 or TTL) ====
634	634
635		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	1090	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
636	636
637		-* AT Command
638	638
639		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	1093	+(((
	1094	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
640	640
641		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	1096	+
	1097	+)))
642	642
	1099	+* (((
	1100	+(% style="color:#037691" %)** AT Command:**
	1101	+)))
643	643
644		-* Downlink Payload
	1103	+(((
	1104	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1105	+)))
645	645
646		-**0A aa**     à same as AT+MOD=aa
	1107	+(((
	1108	+
647	647
	1110	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1111	+)))
648	648
	1113	+(((
	1114	+Example screen shot after clear all RS485 commands.
	1115	+)))
649	649
650		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
	1117	+(((
	1118	+
	1119	+)))
651	651
652		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	1121	+(((
	1122	+The uplink screen shot is:
	1123	+)))
653	653
654		-* AT Command
	1125	+(% 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" %)​
655	655
656		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
657	657
658		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1128	+* (((
	1129	+(% style="color:#037691" %)** Downlink Payload:**
	1130	+)))
659	659
	1132	+(((
	1133	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1134	+)))
660	660
661	661
662		-* Downlink Payload
663	663
664		-Format: A8 MM NN XX XX XX XX YY
665	665
666		-Where:
	1139	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
667	667
668		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
669		-* NN: The length of RS485 command
670		-* XX XX XX XX: RS485 command total NN bytes
671		-* 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
672	672
673		-**Example 1:**
	1142	+(((
	1143	+Set the Rs485 serial communication parameters:
674	674
675		-To connect a Modbus Alarm with below commands.
	1145	+
	1146	+)))
676	676
677		-* 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.
	1148	+* (((
	1149	+(% style="color:#037691" %)** AT Command:**
678	678
679		-* 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.
680	680
681		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	1152	+
	1153	+)))
682	682
683		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1155	+(((
	1156	+* Set Baud Rate
	1157	+)))
684	684
685		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
	1159	+(% 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
686	686
687		-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.
688	688
	1162	+(((
	1163	+* Set UART Parity
	1164	+)))
689	689
690		-**Example 2:**
	1166	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
691	691
692		-Check TTL Sensor return:
693	693
694		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1169	+(((
	1170	+* Set STOPBIT
	1171	+)))
695	695
	1173	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
696	696
697	697
698	698
699		-==== Set Payload version ====
	1177	+* (((
	1178	+(% style="color:#037691" %)** Downlink Payload:**
	1179	+)))
700	700
701		-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.
	1181	+(((
	1182	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1183	+)))
702	702
703		-* AT Command:
	1185	+(((
	1186	+
704	704
705		-AT+PAYVER: Set PAYVER field = 1
	1188	+**Example:**
	1189	+)))
706	706
	1191	+* (((
	1192	+A7 01 00 60  same as AT+BAUDR=9600
	1193	+)))
	1194	+* (((
	1195	+A7 01 04 80  same as AT+BAUDR=115200
	1196	+)))
707	707
708		-* Downlink Payload:
	1198	+(((
	1199	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1200	+)))
709	709
710		-0xAE 01   à Set PAYVER field =  0x01
	1202	+(((
	1203	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1204	+)))
711	711
712		-0xAE 0F   à Set PAYVER field =  0x0F
713	713
714	714
715		-==== Set RS485 Sampling Commands ====
716	716
717		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
718	718
719		-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]].
	1210	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
720	720
	1212	+(((
	1213	+
	1214	+)))
721	721
722		-* AT Command:
	1216	+* (((
	1217	+(% style="color:#037691" %)** AT Command:**
	1218	+)))
723	723
724		-AT+COMMANDx: Configure RS485 read command to sensor.
	1220	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
725	725
726		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1222	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
727	727
728		-AT+SEARCHx: Configure search command
729	729
730	730
731		-* Downlink Payload:
732	732
733		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	1227	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
734	734
735		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
736	736
737		-Format: AF MM NN LL XX XX XX XX YY
	1230	+* (((
	1231	+(% style="color:#037691" %)** AT Command:**
	1232	+)))
738	738
739		-Where:
	1234	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
740	740
741		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
742		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
743		-* LL: The length of AT+COMMAND or AT+DATACUT command
744		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
745		-* 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.
	1236	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
746	746
747		-Example:
748	748
749		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
750	750
751		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
752	752
753		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
	1241	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
754	754
755	755
756		-0xAB downlink command can be used for set AT+SEARCHx
	1244	+* (((
	1245	+(% style="color:#037691" %)** AT Command:**
	1246	+)))
757	757
758		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	1248	+(% 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)
759	759
760		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
761		-* 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
	1250	+(% 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.
762	762
763		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
764	764
765	765
766		-==== Fast command to handle MODBUS device ====
767	767
768		-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]].
	1255	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
769	769
770		-This command is valid since v1.3 firmware version
771	771
	1258	+* (((
	1259	+(% style="color:#037691" %)** AT Command:**
	1260	+)))
772	772
773		-AT+MBFUN has only two value:
	1262	+ (% 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)
774	774
775		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
	1264	+ (% 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.
776	776
777		-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.
778	778
779		-* AT+MBFUN=0: Disable Modbus fast reading.
	1267	+* (((
	1268	+(% style="color:#037691" %)** Downlink Payload:**
	1269	+)))
780	780
781		-Example:
	1271	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
782	782
783		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
784		-* 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.
785		-* 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.
786	786
787		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
788	788
789	789
790		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1276	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
791	791
792	792
793		-* Downlink Commands:
	1279	+* (((
	1280	+(% style="color:#037691" %)** AT Command:**
	1281	+)))
794	794
795		-A9 aa -à Same as AT+MBFUN=aa
	1283	+(% 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.
796	796
797	797
798		-==== RS485 command timeout ====
	1286	+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.
799	799
800		-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.
801	801
802		-Default value: 0, range:  0 ~~ 5 seconds
	1289	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
803	803
804	804
805		-* AT Command:
806	806
807		-AT+CMDDLaa=hex(bb cc)
	1293	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
808	808
809		-Example:
810	810
811		-**AT+CMDDL1=1000** to send the open time to 1000ms
	1296	+[[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"]]
812	812
813	813
814		-* Downlink Payload:
	1299	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
815	815
816		-0x AA aa bb cc
817	817
818		-Same as: AT+CMDDLaa=hex(bb cc)
819	819
820		- Example:
821	821
822		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
	1304	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
823	823
824	824
825		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
	1307	+(((
	1308	+* (% style="color:#037691" %)**Downlink Payload:**
826	826
827		-Define to use one uplink or multiple uplinks for the sampling.
	1310	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1311	+)))
828	828
829		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
830	830
831		-* AT Command:
	1314	+Example：
832	832
833		-AT+DATAUP=0
834	834
835		-AT+DATAUP=1
	1317	+[[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"]]
836	836
837	837
838		-* Downlink Payload:
839	839
840		-0xAD 00   à Same as AT+DATAUP=0
841	841
842		-0xAD 01   à Same as AT+DATAUP=1
	1322	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
843	843
844	844
845		-==== Manually trigger an Uplink ====
	1325	+* (((
	1326	+(% style="color:#037691" %)** AT Command:**
	1327	+)))
846	846
847		-Ask device to send an uplink immediately.
	1329	+(% 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.
848	848
849		-* Downlink Payload:
	1331	+(% 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.
850	850
851		-0x08 FF, RS485-BL will immediately send an uplink.
	1333	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
852	852
853	853
854		-==== Clear RS485 Command ====
	1336	+* (((
	1337	+(% style="color:#037691" %)**Downlink Payload:**
	1338	+)))
855	855
856		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	1340	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
857	857
	1342	+[[image:image-20220824144240-1.png]]
858	858
859		-* AT Command:
860	860
861		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
862	862
863		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1346	+== 3.6 Listening mode for RS485 network ==
864	864
865		-Example screen shot after clear all RS485 commands.
866	866
	1349	+(((
	1350	+This feature support since firmware v1.4
	1351	+)))
867	867
	1353	+(((
	1354	+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.
868	868
869		-The uplink screen shot is:
	1356	+
	1357	+)))
870	870
871		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1359	+(% 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"]]
872	872
	1361	+(% title="Click and drag to resize" %)​
873	873
874		-* Downlink Payload:
	1363	+(((
	1364	+To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
	1365	+)))
875	875
876		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1367	+(((
	1368	+
	1369	+)))
877	877
	1371	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1372	+|=(% style="width: 100px;" %)(((
	1373	+**Command example**
	1374	+)))|=(% style="width: 400px;" %)(((
	1375	+**Function**
	1376	+)))
	1377	+|(% style="width:100px" %)(((
	1378	+AT+RXMODE=1,10
	1379	+)))|(% style="width:400px" %)(((
	1380	+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.
	1381	+)))
	1382	+|(% style="width:100px" %)(((
	1383	+AT+RXMODE=2,500
	1384	+)))|(% style="width:400px" %)(((
	1385	+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
	1386	+)))
	1387	+|(% style="width:100px" %)(((
	1388	+AT+RXMODE=0,0
	1389	+)))|(% style="width:400px" %)(((
	1390	+Disable listening mode. This is the default settings.
	1391	+)))
	1392	+|(% style="width:100px" %)(((
	1393	+
	1394	+)))|(% style="width:400px" %)(((
	1395	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1396	+)))
878	878
879		-==== Set Serial Communication Parameters ====
	1398	+(((
	1399	+
880	880
881		-Set the Rs485 serial communication parameters:
	1401	+(% style="color:#037691" %)**Downlink Command:**
	1402	+)))
882	882
883		-* AT Command:
	1404	+(((
	1405	+(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
	1406	+)))
884	884
885		-Set Baud Rate:
	1408	+(((
	1409	+
	1410	+)))
886	886
887		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1412	+(((
	1413	+**Example**:
	1414	+)))
888	888
	1416	+(((
	1417	+The RS485-LN is set to AT+RXMODE=2,1000
	1418	+)))
889	889
890		-Set UART parity
	1420	+(((
	1421	+There is a two Modbus commands in the RS485 network as below:
	1422	+)))
891	891
892		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1424	+(((
	1425	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1426	+)))
893	893
	1428	+(((
	1429	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1430	+)))
894	894
895		-Set STOPBIT
	1432	+(((
	1433	+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
	1434	+)))
896	896
897		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1436	+(((
	1437	+(% 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" %)​
	1438	+)))
898	898
	1440	+(((
	1441	+
	1442	+)))
899	899
900		-* Downlink Payload:
	1444	+(((
	1445	+(((
	1446	+(% 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.**
	1447	+)))
	1448	+)))
901	901
902		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
903	903
904		-Example:
905	905
906		-* A7 01 00 60   same as AT+BAUDR=9600
907		-* A7 01 04 80  same as AT+BAUDR=115200
	1452	+== 3.7 Buttons ==
908	908
909		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
910	910
911		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1455	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1456	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1457	+|(% 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**
	1458	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1459	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
912	912
913	913
914		-==== Control output power duration ====
915	915
916		-User can set the output power duration before each sampling.
	1463	+== 3.8 LEDs ==
917	917
918		-* AT Command:
919	919
920		-Example:
	1466	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1467	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1468	+|**PWR**|Always on if there is power
	1469	+|**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.
921	921
922		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
923	923
924		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
925	925
	1473	+= 4. Case Study =
926	926
927		-* LoRaWAN Downlink Command:
928	928
929		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1476	+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]]
930	930
931		-07 02 aa bb  Same as AT+3V3T=(aa bb)
932	932
933	933
	1480	+= 5. Use AT Command =
934	934
935	935
936		-1.
937		-11. Buttons
	1483	+== 5.1 Access AT Command ==
938	938
939		-|**Button**|**Feature**
940		-|**RST**|Reboot RS485-BL
941	941
942		-1.
943		-11. +3V3 Output
	1486	+(((
	1487	+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.
944	944
945		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
	1489	+
	1490	+)))
946	946
947		-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.
	1492	+(% 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" %)​
948	948
949	949
950		-The +3V3 output time can be controlled by AT Command.
951	951
952		-**AT+3V3T=1000**
	1496	+(((
	1497	+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:
953	953
954		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1499	+
	1500	+)))
955	955
	1502	+(% 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" %)​
956	956
957		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
958	958
	1505	+(((
	1506	+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/]]
	1507	+)))
959	959
960		-1.
961		-11. +5V Output
962	962
963		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
964	964
965		-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.
	1511	+== 5.2 Common AT Command Sequence ==
966	966
967	967
968		-The 5V output time can be controlled by AT Command.
	1514	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
969	969
970		-**AT+5VT=1000**
971	971
972		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
	1517	+If device has not joined network yet:
973	973
	1519	+* (% style="color:#037691" %)**AT+FDR**
	1520	+* (% style="color:#037691" %)**AT+NJM=0**
	1521	+* (% style="color:#037691" %)**ATZ**
974	974
975		-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.
	1523	+(((
	1524	+
976	976
	1526	+If device already joined network:
977	977
	1528	+* (% style="color:#037691" %)**AT+NJM=0**
	1529	+* (% style="color:#037691" %)**ATZ**
978	978
	1531	+
	1532	+)))
979	979
980		-1.
981		-11. LEDs
982	982
983		-|**LEDs**|**Feature**
984		-|**LED1**|Blink when device transmit a packet.
985	985
986		-1.
987		-11. Switch Jumper
	1536	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
988	988
989		-|**Switch Jumper**|**Feature**
990		-|**SW1**|(((
991		-ISP position: Upgrade firmware via UART
992	992
993		-Flash position: Configure device, check running status.
994		-)))
995		-|**SW2**|(((
996		-5V position: set to compatible with 5v I/O.
	1539	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
997	997
998		-3.3v position: set to compatible with 3.3v I/O.,
999		-)))
	1541	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1000	1000
1001		-+3.3V: is always ON
	1543	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1002	1002
1003		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1545	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1004	1004
1005		-1. Case Study
	1547	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1006	1006
1007		-User can check this URL for some case studies.
	1549	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1008	1008
1009		-[[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]]
	1551	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1010	1010
	1553	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1011	1011
	1555	+(% 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.
1012	1012
	1557	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1013	1013
1014		-1. Use AT Command
1015		-11. Access AT Command
1016	1016
1017		-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.
	1560	+(% style="color:red" %)**Note:**
1018	1018
1019		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1562	+(((
	1563	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1564	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1565	+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.
	1566	+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
1020	1020
	1568	+
	1569	+)))
1021	1021
1022		-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:
	1571	+(% 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" %)​
1023	1023
1024		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1025	1025
1026	1026
	1575	+= 6. FAQ =
1027	1027
1028		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1029	1029
	1578	+== 6.1 How to upgrade the image? ==
1030	1030
1031	1031
1032		-1.
1033		-11. Common AT Command Sequence
1034		-111. Multi-channel ABP mode (Use with SX1301/LG308)
	1581	+(((
	1582	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1583	+)))
1035	1035
1036		-If device has not joined network yet:
	1585	+* (((
	1586	+Support new features
	1587	+)))
	1588	+* (((
	1589	+For bug fix
	1590	+)))
	1591	+* (((
	1592	+Change LoRaWAN bands.
	1593	+)))
1037	1037
1038		-AT+FDR
	1595	+(((
	1596	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1597	+)))
1039	1039
1040		-AT+NJM=0
	1599	+(% 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"]]
1041	1041
1042		-ATZ
	1601	+(% title="Click and drag to resize" %)​
1043	1043
	1603	+(((
	1604	+(% 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]].
1044	1044
1045		-If device already joined network:
	1606	+
	1607	+)))
1046	1046
1047		-AT+NJM=0
	1609	+(((
	1610	+(% 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]].
1048	1048
1049		-ATZ
	1612	+
	1613	+)))
1050	1050
1051		-1.
1052		-11.
1053		-111. Single-channel ABP mode (Use with LG01/LG02)
	1615	+(((
	1616	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1054	1054
1055		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1618	+
	1619	+)))
1056	1056
1057		-AT+NJM=0 Set to ABP mode
	1621	+(((
	1622	+(((
	1623	+(((
	1624	+(% 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.
	1625	+)))
	1626	+)))
	1627	+)))
1058	1058
1059		-AT+ADR=0 Set the Adaptive Data Rate Off
1060	1060
1061		-AT+DR=5  Set Data Rate
	1630	+(% 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" %)​
1062	1062
1063		-AT+TDC=60000  Set transmit interval to 60 seconds
1064	1064
1065		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1633	+(% 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" %)​
1066	1066
1067		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1068	1068
1069		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1636	+(% 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" %)​
1070	1070
1071		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1072	1072
1073		-ATZ          Reset MCU
	1639	+(% 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:**
1074	1074
1075		-**Note:**
	1641	+(% 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" %)​
1076	1076
1077		-1. Make sure the device is set to ABP mode in the IoT Server.
1078		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1079		-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.
1080		-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
1081	1081
1082		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1083	1083
	1645	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1084	1084
1085		-1. FAQ
1086		-11. How to upgrade the image?
1087	1087
1088		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1648	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1089	1089
1090		-* Support new features
1091		-* For bug fix
1092		-* Change LoRaWAN bands.
1093	1093
1094		-Below shows the hardware connection for how to upload an image to RS485-BL:
1095	1095
1096		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1652	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1097	1097
1098		-**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]].
1099	1099
1100		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1655	+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"]].
1101	1101
1102		-**Step3: **Open flashloader; choose the correct COM port to update.
1103	1103
1104	1104
1105		-|(((
1106		-HOLD PRO then press the RST button, SYS will be ON, then click next
1107		-)))
	1659	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1108	1108
1109		-|(((
1110		-Board detected
1111		-)))
1112	1112
1113		-|(((
1114		-
1115		-)))
	1662	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1116	1116
1117		-[[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]]
	1664	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1118	1118
1119	1119
1120	1120
1121		-[[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]]
	1668	+== 6.5 Can i use point to point communication for RS485-LN? ==
1122	1122
1123	1123
1124		-[[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]]
	1671	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1125	1125
1126	1126
1127		-1.
1128		-11. How to change the LoRa Frequency Bands/Region?
1129	1129
1130		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
	1675	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1131	1131
1132	1132
	1678	+[[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/]]
1133	1133
1134		-1.
1135		-11. How many RS485-Slave can RS485-BL connects?
1136	1136
1137		-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]].
1138	1138
	1682	+= 7. Trouble Shooting =
1139	1139
1140	1140
	1685	+== 7.1 Downlink doesn't work, how to solve it? ==
1141	1141
1142		-1. Trouble Shooting
1143		-11. Downlink doesn’t work, how to solve it?
1144	1144
1145		-Please see this link for debug:
	1688	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1146	1146
1147		-[[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]]
1148	1148
1149	1149
	1692	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1150	1150
1151		-1.
1152		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1153	1153
1154		-It might about the channels mapping. Please see for detail.
	1695	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1155	1155
1156		-[[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]]
1157	1157
1158	1158
	1699	+= 8. Order Info =
1159	1159
1160		-1. Order Info
1161	1161
1162		-**Part Number: RS485-BL-XXX**
	1702	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1163	1163
1164		-**XXX:**
	1704	+(% style="color:blue" %)**XXX:**
1165	1165
1166		-* **EU433**: frequency bands EU433
1167		-* **EU868**: frequency bands EU868
1168		-* **KR920**: frequency bands KR920
1169		-* **CN470**: frequency bands CN470
1170		-* **AS923**: frequency bands AS923
1171		-* **AU915**: frequency bands AU915
1172		-* **US915**: frequency bands US915
1173		-* **IN865**: frequency bands IN865
1174		-* **RU864**: frequency bands RU864
1175		-* **KZ865: **frequency bands KZ865
	1706	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1707	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1708	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1709	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1710	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1711	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1712	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1713	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1714	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1715	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1176	1176
1177		-1. Packing Info
1178	1178
	1718	+
	1719	+= 9.Packing Info =
	1720	+
	1721	+
1179	1179	**Package Includes**:
1180	1180
1181		-* RS485-BL x 1
	1724	+* RS485-LN x 1
1182	1182	* Stick Antenna for LoRa RF part x 1
1183	1183	* Program cable x 1
1184	1184
...	...	@@ -1189,9 +1189,70 @@
1189	1189	* Package Size / pcs : 14.5 x 8 x 5 cm
1190	1190	* Weight / pcs : 170g
1191	1191
1192		-1. Support
1193	1193
1194		-* 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.
1195		-* 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
1196	1196
1197		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1737	+= 10. FCC Caution for RS485LN-US915 =
	1738	+
	1739	+
	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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