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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35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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39		-[[image:1653267211009-519.png||height="419" width="724"]]
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	73	+
42	42	== 1.2 Specifications ==
43	43
44	44
45		-**Hardware System:**
	77	+(% style="color:#037691" %)**Hardware System:**
46	46
47	47	* STM32L072CZT6 MCU
48	48	* SX1276/78 Wireless Chip
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50	50	** Idle: 32mA@12v
51	51	** 20dB Transmit: 65mA@12v
52	52
53		-**Interface for Model:**
54	54
	86	+
	87	+(% style="color:#037691" %)**Interface for Model:**
	88	+
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
59	59
	93	+
	94	+(% style="color:#037691" %)**LoRa Spec:**
	95	+
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 Mhz
62	62	** Band 2 (LF): 410 ~~ 528 Mhz
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74	74	* Preamble detection.
75	75	* 127 dB Dynamic Range RSSI.
76	76	* Automatic RF Sense and CAD with ultra-fast AFC.
77		-* Packet engine up to 256 bytes with CRC.
	113	+* Packet engine up to 256 bytes with CRC
78	78
79	79
80	80
	117	+
81	81	== 1.3 Features ==
82	82
	120	+
83	83	* LoRaWAN Class A & Class C protocol (default Class C)
84		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	122	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
85	85	* AT Commands to change parameters
86	86	* Remote configure parameters via LoRa Downlink
87	87	* Firmware upgradable via program port
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	132	+
94	94	== 1.4 Applications ==
95	95
	135	+
96	96	* Smart Buildings & Home Automation
97	97	* Logistics and Supply Chain Management
98	98	* Smart Metering
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	145	+
105	105	== 1.5 Firmware Change log ==
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107	107	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
108	108
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	152	+
109	109	== 1.6 Hardware Change log ==
110	110
	155	+
111	111	(((
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113	113	v1.2: Add External Interrupt Pin.
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115	115	v1.0: Release
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118	118
119	119	= 2. Power ON Device =
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122	122	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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128	128	Once there is power, the RS485-LN will be on.
129	129	)))
130	130
131		-[[image:1653268091319-405.png]]
	184	+(% aria-label="1653268091319-405.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268091319-405.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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132	132	)))
133	133
134	134	= 3. Operation Mode =
135	135
	192	+
136	136	== 3.1 How it works? ==
137	137
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138	138	(((
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139	139	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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	204	+
142	142	== 3.2 Example to join LoRaWAN network ==
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144	144	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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146		-[[image:1653268155545-638.png||height="334" width="724"]]
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149	149	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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151	151	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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153		-[[image:1653268227651-549.png||height="592" width="720"]]
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155	155	(((
156		-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:
	226	+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:
	227	+
	228	+
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160		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	232	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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168		-[[image:1652953462722-299.png]]
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172	172	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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176		-Add APP EUI in the application.
	249	+**Add APP EUI in the application.**
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180		-[[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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184		-[[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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186		-[[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"]](% title="Click and drag to resize" %)​
187	187
188	188	You can also choose to create the device manually.
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190		-[[image:1652953542269-423.png||height="710" width="723"]]
	263	+(% 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" %)​
191	191
192		-Add APP KEY and DEV EUI
193	193
194		-[[image:1652953553383-907.png||height="514" width="724"]]
195	195
	267	+**Add APP KEY and DEV EUI**
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	270	+
	271	+
197	197	(((
198		-**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.
	273	+(% 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.
199	199	)))
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201		-[[image:1652953568895-172.png||height="232" width="724"]]
	276	+(% 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" %)​
202	202
	278	+
	279	+
203	203	== 3.3 Configure Commands to read data ==
204	204
	282	+
205	205	(((
206	206	(((
207		-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.
	285	+(((
	286	+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.
208	208	)))
	288	+)))
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210	210	(((
211		-(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
	291	+(((
	292	+(% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
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214	214
215		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	300	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
216	216
	302	+
217	217	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:
218	218
219		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
220		-|(((
	305	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	306	+|=(% style="width: 110px;" %)(((
221	221	**AT Commands**
222		-)))|(% style="width:285px" %)(((
	308	+)))|=(% style="width: 190px;" %)(((
223	223	**Description**
224		-)))|(% style="width:347px" %)(((
	310	+)))|=(% style="width: 190px;" %)(((
225	225	**Example**
226	226	)))
227		-|(((
	313	+|(% style="width:110px" %)(((
228	228	AT+BAUDR
229		-)))|(% style="width:285px" %)(((
	315	+)))|(% style="width:190px" %)(((
230	230	Set the baud rate (for RS485 connection). Default Value is: 9600.
231		-)))|(% style="width:347px" %)(((
	317	+)))|(% style="width:190px" %)(((
232	232	(((
233	233	AT+BAUDR=9600
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237	237	Options: (1200,2400,4800,14400,19200,115200)
238	238	)))
239	239	)))
240		-|(((
	326	+|(% style="width:110px" %)(((
241	241	AT+PARITY
242		-)))|(% style="width:285px" %)(((
	328	+)))|(% style="width:190px" %)(((
243	243	Set UART parity (for RS485 connection)
244		-)))|(% style="width:347px" %)(((
	330	+)))|(% style="width:190px" %)(((
245	245	(((
246	246	AT+PARITY=0
247	247	)))
...	...	@@ -250,9 +250,9 @@
250	250	Option: 0: no parity, 1: odd parity, 2: even parity
251	251	)))
252	252	)))
253		-|(((
	339	+|(% style="width:110px" %)(((
254	254	AT+STOPBIT
255		-)))|(% style="width:285px" %)(((
	341	+)))|(% style="width:190px" %)(((
256	256	(((
257	257	Set serial stopbit (for RS485 connection)
258	258	)))
...	...	@@ -260,7 +260,7 @@
260	260	(((
261	261
262	262	)))
263		-)))|(% style="width:347px" %)(((
	349	+)))|(% style="width:190px" %)(((
264	264	(((
265	265	AT+STOPBIT=0 for 1bit
266	266	)))
...	...	@@ -276,904 +276,1285 @@
276	276
277	277	=== 3.3.2 Configure sensors ===
278	278
	365	+
279	279	(((
280	280	(((
281		-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.
	368	+Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
	369	+
	370	+
282	282	)))
283	283	)))
284	284
285		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
286		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
287		-|AT+CFGDEV|(% style="width:418px" %)(((
	374	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	375	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	376	+|AT+CFGDEV|(% style="width:110px" %)(((
	377	+(((
288	288	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	379	+)))
289	289
	381	+(((
290	290	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	383	+)))
291	291
	385	+(((
292	292	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
293		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	387	+)))
	388	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
294	294
295	295	=== 3.3.3 Configure read commands for each sampling ===
296	296
297		-(((
298		-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.
299		-)))
300	300
301	301	(((
302		-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.
303		-)))
	394	+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.
304	304
305		-(((
306	306	To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
307		-)))
308	308
309		-(((
310	310	This section describes how to achieve above goals.
311		-)))
312	312
313		-(((
314		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
315		-)))
	400	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
316	316
317		-(((
318		-**Command from RS485-BL to Sensor:**
	402	+
	403	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	404	+
	405	+~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.
	406	+
	407	+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.
	408	+
	409	+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
	410	+
	411	+
	412	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	413	+
	414	+Below are examples for the how above AT Commands works.
	415	+
	416	+
	417	+(% 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:
	418	+
	419	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	420	+|(% style="width:496px" %)(((
	421	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	422	+
	423	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	424	+
	425	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
319	319	)))
320	320
321		-(((
322		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
	428	+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.
	429	+
	430	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	431	+
	432	+
	433	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	434	+
	435	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	436	+|(% style="width:510px" %)(((
	437	+**AT+DATACUTx=a,b,c**
	438	+
	439	+* **a: length for the return of AT+COMMAND**
	440	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	441	+* **c: define the position for valid value.  **
323	323	)))
324	324
325		-(((
326		-**Handle return from sensors to RS485-BL**:
	444	+**Examples:**
	445	+
	446	+* (% style="color:#037691" %)**Grab bytes**
	447	+
	448	+(% 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" %)​
	449	+
	450	+
	451	+
	452	+* (% style="color:#037691" %)**Grab a section**
	453	+
	454	+(% 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" %)​
	455	+
	456	+
	457	+
	458	+* (% style="color:#037691" %)**Grab different sections**
	459	+
	460	+(% 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" %)​
	461	+
	462	+
	463	+
327	327	)))
328	328
	466	+=== 3.3.4 Compose the uplink payload ===
	467	+
	468	+
329	329	(((
330		-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**
331		-)))
	470	+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.**
332	332
333		-* (((
334		-**AT+DATACUT**
	472	+
335	335	)))
336	336
337	337	(((
338		-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.
339		-)))
	476	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
340	340
341		-* (((
342		-**AT+SEARCH**
	478	+
343	343	)))
344	344
345	345	(((
346		-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.
	482	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
347	347	)))
348	348
349	349	(((
350		-**Define wait timeout:**
	486	+Final Payload is
351	351	)))
352	352
353	353	(((
354		-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
	490	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
355	355	)))
356	356
357	357	(((
358		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	494	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
359	359	)))
360	360
361		-**Examples:**
	497	+(% 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" %)​
362	362
363		-Below are examples for the how above AT Commands works.
364	364
365		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	500	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
366	366
367		-(% border="1" class="table-bordered" %)
368		-|(((
369		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
370	370
371		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	503	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
372	372
373		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
374		-)))
	505	+Final Payload is
375	375
	507	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	508	+
	509	+
	510	+1. PAYVER: Defined by AT+PAYVER
	511	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	512	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	513	+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
	514	+
	515	+(% 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" %)​
	516	+
	517	+
	518	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	519	+
	520	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	521	+
	522	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	523	+
	524	+DATA3=the rest of Valid value of RETURN10= **30**
	525	+
	526	+
	527	+(% 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:**
	528	+
	529	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	530	+
	531	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	532	+
	533	+ * For US915 band, max 11 bytes for each uplink.
	534	+
	535	+ ~* For all other bands: max 51 bytes for each uplink.
	536	+
	537	+(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	538	+
	539	+(% 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)**
	540	+
	541	+
	542	+(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
	543	+
	544	+1)When 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.
	545	+
	546	+[[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"]]
	547	+
	548	+2)When 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.
	549	+
	550	+[[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"]]
	551	+
	552	+
	553	+Below are the uplink payloads:
	554	+
	555	+(% 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" %)​
	556	+
	557	+
	558	+
	559	+=== 3.3.5 Uplink on demand ===
	560	+
	561	+
	562	+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.
	563	+
	564	+Downlink control command:
	565	+
	566	+**0x08 command**: Poll an uplink with current command set in RS485-LN.
	567	+
	568	+**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
	569	+
	570	+
	571	+
	572	+=== 3.3.6 Uplink on Interrupt ===
	573	+
	574	+
	575	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	576	+
	577	+(% 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" %)​
	578	+
	579	+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.
	580	+
	581	+
	582	+
	583	+== 3.4 Uplink Payload ==
	584	+
	585	+
	586	+(% 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"]](% title="Click and drag to resize" %)​
	587	+
	588	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	589	+
	590	+
	591	+
	592	+== 3.5 Configure RS485-LN via AT or Downlink ==
	593	+
	594	+
376	376	(((
377		-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.
	596	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
378	378	)))
379	379
380	380	(((
381		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	600	+There are two kinds of Commands:
382	382	)))
383	383
384		-(((
385		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	603	+* (((
	604	+(% 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]]
386	386	)))
387	387
388		-(% border="1" class="table-bordered" %)
389		-|(((
390		-**AT+SEARCHx=aa,xx xx xx xx xx**
	607	+* (((
	608	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	609	+)))
391	391
392		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
393		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
394		-
	611	+(((
395	395
396	396	)))
397	397
398		-**Examples:**
399	399
400		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
401	401
402		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	617	+=== 3.5.1 Common Commands ===
403	403
404		-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**
405	405
406		-[[image:1653269403619-508.png]]
	620	+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]]
407	407
408		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
409	409
410		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
411	411
412		-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**
	624	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
413	413
414		-[[image:1653269438444-278.png]]
415	415
416		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	627	+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.
417	417
418		-|(((
419		-**AT+DATACUTx=a,b,c**
	629	+(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]](% title="Click and drag to resize" %)​
420	420
421		-* **a: length for the return of AT+COMMAND**
422		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
423		-* **c: define the position for valid value.  **
424		-)))
	631	+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)
425	425
426		-Examples:
427	427
428		-* Grab bytes:
429	429
430		-[[image:1653269551753-223.png||height="311" width="717"]]
	635	+=== 3.5.3 Sensor related commands ===
431	431
432		-* Grab a section.
433	433
434		-[[image:1653269568276-930.png||height="325" width="718"]]
435	435
436		-* Grab different sections.
437	437
438		-[[image:1653269593172-426.png||height="303" width="725"]]
	640	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
439	439
440		-(% style="color:red" %)**Note:**
441	441
442		-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.
	643	+(((
	644	+This command is used to configure the RS485 devices; they won't be used during sampling.
	645	+)))
443	443
444		-Example:
	647	+* (((
	648	+(% style="color:#037691" %)**AT Command**
445	445
446		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
	650	+(((
	651	+**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
	652	+)))
	653	+)))
447	447
448		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	655	+(((
	656	+
	657	+)))
449	449
450		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
	659	+* (((
	660	+(% style="color:#037691" %)**Downlink Payload**
	661	+)))
451	451
452		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	663	+(((
	664	+Format: A8 MM NN XX XX XX XX YY
	665	+)))
453	453
454		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
	667	+(((
	668	+Where:
	669	+)))
455	455
456		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	671	+* (((
	672	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	673	+)))
	674	+* (((
	675	+NN: The length of RS485 command
	676	+)))
	677	+* (((
	678	+XX XX XX XX: RS485 command total NN bytes
	679	+)))
	680	+* (((
	681	+(((
	682	+YY: How many bytes will be uplink from the return of this RS485 command,
	683	+)))
457	457
458		-[[image:1653269618463-608.png]]
	685	+* (((
	686	+if YY=0, RS485-LN will execute the downlink command without uplink;
	687	+)))
	688	+* (((
	689	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	690	+)))
	691	+* (((
	692	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	693	+)))
	694	+)))
459	459
460		-=== 3.3.4 Compose the uplink payload ===
	696	+(((
	697	+
461	461
	699	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	700	+)))
	701	+
462	462	(((
463		-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.**
	703	+To connect a Modbus Alarm with below commands.
464	464	)))
465	465
	706	+* (((
	707	+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.
	708	+)))
	709	+
	710	+* (((
	711	+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.
	712	+)))
	713	+
466	466	(((
467		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	715	+
	716	+
	717	+So if user want to use downlink command to control to RS485 Alarm, he can use:
468	468	)))
469	469
470	470	(((
471		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	721	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
472	472	)))
473	473
474	474	(((
475		-Final Payload is
	725	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
476	476	)))
477	477
478	478	(((
479		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	729	+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.
480	480	)))
481	481
482	482	(((
483		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	733	+
484	484	)))
485	485
486		-[[image:1653269759169-150.png||height="513" width="716"]]
	736	+(((
	737	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	738	+)))
487	487
488		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	740	+(((
	741	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	742	+)))
489	489
490		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	744	+(((
	745	+
	746	+)))
491	491
492		-Final Payload is
	748	+(((
	749	+(((
	750	+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**
	751	+)))
493	493
494		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	753	+
	754	+)))
495	495
496		-1. Battery Info (2 bytes): Battery voltage
497		-1. PAYVER (1 byte): Defined by AT+PAYVER
498		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
499		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
500		-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
	756	+(((
	757	+ (% 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" %)​
	758	+)))
501	501
502		-[[image:1653269916228-732.png||height="433" width="711"]]
503	503
504	504
505		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
506	506
507		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	763	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
508	508
509		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
510	510
511		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	766	+(((
	767	+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.
	768	+)))
512	512
513		-Below are the uplink payloads:
	770	+* (((
	771	+(% style="color:#037691" %)**AT Command:**
514	514
515		-[[image:1653270130359-810.png]]
	773	+**AT+PAYVER:    **Set PAYVER field = 1
516	516
	775	+
	776	+)))
	777	+* (((
	778	+(% style="color:#037691" %)**Downlink Payload:**
	779	+)))
517	517
518		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	781	+(((
	782	+**0xAE 01**  ~-~->  Set PAYVER field =  0x01
	783	+)))
519	519
520		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	785	+(((
	786	+**0xAE 0F**   ~-~->  Set PAYVER field =  0x0F
	787	+)))
521	521
522		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
523	523
524		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	790	+1)Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)[[image:image-20220824145428-2.png||height="168" width="1300"]]
525	525
526		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
527	527
528		-=== 3.3.5 Uplink on demand ===
	793	+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.
529	529
530		-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.
	795	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
531	531
532		-Downlink control command:
533	533
534		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	798	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
535	535
536		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
537	537
	801	+(((
	802	+AT+COMMANDx or AT+DATACUTx
	803	+)))
538	538
	805	+(((
	806	+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"]].
	807	+)))
539	539
540		-1.
541		-11.
542		-111. Uplink on Interrupt
	809	+(((
	810	+
	811	+)))
543	543
544		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	813	+* (((
	814	+(% style="color:#037691" %)**AT Command:**
	815	+)))
545	545
546		-AT+INTMOD=0  Disable Interrupt
	817	+**AT+COMMANDx:    **Configure RS485 read command to sensor.
547	547
548		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	819	+**AT+DATACUTx:        **Configure how to handle return from RS485 devices.
549	549
550		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
551	551
552		-AT+INTMOD=3  Interrupt trigger by rising edge.
	822	+* (((
	823	+(% style="color:#037691" %)**Downlink Payload:**
	824	+)))
553	553
	826	+(((
	827	+**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
554	554
555		-1.
556		-11. Uplink Payload
	829	+
	830	+)))
557	557
558		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
559		-|Value|(((
560		-Battery(mV)
	832	+(((
	833	+(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
561	561
562		-&
	835	+
	836	+)))
563	563
564		-Interrupt _Flag
565		-)))|(((
566		-PAYLOAD_VER
	838	+(((
	839	+Format: AF MM NN LL XX XX XX XX YY
	840	+)))
567	567
568		-
569		-)))|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.
	842	+(((
	843	+Where:
	844	+)))
570	570
571		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	846	+* (((
	847	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	848	+)))
	849	+* (((
	850	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	851	+)))
	852	+* (((
	853	+LL:  The length of AT+COMMAND or AT+DATACUT command
	854	+)))
	855	+* (((
	856	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	857	+)))
	858	+* (((
	859	+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.
	860	+)))
572	572
	862	+(((
	863	+
573	573
574		-function Decoder(bytes, port) {
	865	+**Example:**
	866	+)))
575	575
576		-~/~/Payload Formats of RS485-BL Deceive
	868	+(((
	869	+(% 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
	870	+)))
577	577
578		-return {
	872	+(((
	873	+(% 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**
	874	+)))
579	579
580		- ~/~/Battery,units:V
	876	+(((
	877	+(% 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**
	878	+)))
581	581
582		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
583	583
584		- ~/~/GPIO_EXTI
585	585
586		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
587	587
588		- ~/~/payload of version
	883	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
589	589
590		- Pay_ver:bytes[2],
591	591
592		- };
	886	+(((
	887	+**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]].
	888	+)))
593	593
594		- }
	890	+(((
	891	+This command is valid since v1.3 firmware version
	892	+)))
595	595
	894	+(((
	895	+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.
	896	+)))
596	596
	898	+(((
	899	+
	900	+)))
597	597
	902	+(((
	903	+**Example:**
	904	+)))
598	598
	906	+* (((
	907	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	908	+)))
	909	+* (((
	910	+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.
	911	+)))
	912	+* (((
	913	+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.
599	599
	915	+
	916	+)))
600	600
	918	+(% 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" %)​
601	601
602		-TTN V3 uplink screen shot.
	920	+(% 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" %)​
603	603
604		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
605	605
606		-1.
607		-11. Configure RS485-BL via AT or Downlink
608	608
609		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
610	610
611		-There are two kinds of Commands:
	925	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
612	612
613		-* **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
614	614
615		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	928	+(((
	929	+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.
	930	+)))
616	616
617		-1.
618		-11.
619		-111. Common Commands:
	932	+(((
	933	+Default value: 0, range:  0 ~~ 65 seconds
	934	+)))
620	620
621		-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]]
	936	+* (((
	937	+(% style="color:#037691" %)** AT Command:**
622	622
	939	+**AT+CMDDLaa=hex(bb cc)*1000**
	940	+)))
623	623
624		-1.
625		-11.
626		-111. Sensor related commands:
	942	+(((
	943	+
627	627
628		-==== Choose Device Type (RS485 or TTL) ====
	945	+**Example:**
	946	+)))
629	629
630		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	948	+(((
	949	+**AT+CMDDL1=1000** to send the open time to 1000ms
	950	+)))
631	631
632		-* AT Command
	952	+(((
	953	+
	954	+)))
633	633
634		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	956	+* (((
	957	+(% style="color:#037691" %)** Downlink Payload:**
	958	+)))
635	635
636		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	960	+(((
	961	+**0x AA aa bb cc**
	962	+)))
637	637
	964	+(((
	965	+Same as: AT+CMDDLaa=hex(bb cc)*1000
	966	+)))
638	638
639		-* Downlink Payload
	968	+(((
	969	+**Example:**
	970	+)))
640	640
641		-**0A aa**     à same as AT+MOD=aa
	972	+(((
	973	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	974	+)))
642	642
643	643
	977	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
644	644
645		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
646	646
647		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	980	+(((
	981	+Define to use one uplink or multiple uplinks for the sampling.
	982	+)))
648	648
649		-* AT Command
	984	+(((
	985	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
650	650
651		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	987	+
	988	+)))
652	652
653		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	990	+* (((
	991	+(% style="color:#037691" %)** AT Command:**
654	654
	993	+**AT+DATAUP=0**
655	655
	995	+**AT+DATAUP=1**
656	656
657		-* Downlink Payload
	997	+
	998	+)))
658	658
659		-Format: A8 MM NN XX XX XX XX YY
	1000	+**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
660	660
661		-Where:
	1002	+Each uplink is sent to the server at 20-second intervals when segmented.
662	662
663		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
664		-* NN: The length of RS485 command
665		-* XX XX XX XX: RS485 command total NN bytes
666		-* 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
667	667
668		-**Example 1:**
	1005	+* (((
	1006	+(% style="color:#037691" %)** Downlink Payload:**
	1007	+)))
669	669
670		-To connect a Modbus Alarm with below commands.
	1009	+**0xAD 00**  **~-~->** Same as AT+DATAUP=0
671	671
672		-* 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.
	1011	+**0xAD 01**  **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
673	673
674		-* 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.
675	675
676		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	1014	+* (((
	1015	+(% style="color:#037691" %)** AT Command:**
	1016	+)))
677	677
678		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1018	+**AT+DATAUP=1,Timeout**
679	679
680		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
681	681
682		-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.
	1021	+* (((
	1022	+(% style="color:#037691" %)** Downlink Payload:**
	1023	+)))
683	683
	1025	+**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
684	684
685		-**Example 2:**
	1027	+Each uplink is sent to the server at 20-second intervals when segmented.
686	686
687		-Check TTL Sensor return:
	1029	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
688	688
689		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
690	690
	1032	+(((
	1033	+Ask device to send an uplink immediately.
	1034	+)))
691	691
	1036	+* (((
	1037	+(% style="color:#037691" %)** AT Command:**
	1038	+)))
692	692
	1040	+(((
	1041	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1042	+)))
693	693
694		-==== Set Payload version ====
	1044	+(((
	1045	+
	1046	+)))
695	695
696		-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.
	1048	+* (((
	1049	+(% style="color:#037691" %)** Downlink Payload:**
	1050	+)))
697	697
698		-* AT Command:
	1052	+(((
	1053	+**0x08 FF**, RS485-LN will immediately send an uplink.
	1054	+)))
699	699
700		-AT+PAYVER: Set PAYVER field = 1
701	701
702	702
703		-* Downlink Payload:
704	704
705		-0xAE 01   à Set PAYVER field =  0x01
	1059	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
706	706
707		-0xAE 0F   à Set PAYVER field =  0x0F
708	708
	1062	+(((
	1063	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
709	709
710		-==== Set RS485 Sampling Commands ====
	1065	+
	1066	+)))
711	711
712		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
	1068	+* (((
	1069	+(% style="color:#037691" %)** AT Command:**
	1070	+)))
713	713
714		-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]].
	1072	+(((
	1073	+**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1074	+)))
715	715
	1076	+(((
	1077	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1078	+)))
716	716
717		-* AT Command:
	1080	+(((
	1081	+Example screen shot after clear all RS485 commands.
	1082	+)))
718	718
719		-AT+COMMANDx: Configure RS485 read command to sensor.
	1084	+(((
	1085	+
	1086	+)))
720	720
721		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1088	+(((
	1089	+The uplink screen shot is:
	1090	+)))
722	722
723		-AT+SEARCHx: Configure search command
	1092	+(% 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" %)​
724	724
725	725
726		-* Downlink Payload:
	1095	+* (((
	1096	+(% style="color:#037691" %)** Downlink Payload:**
	1097	+)))
727	727
728		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	1099	+(((
	1100	+**0x09 aa bb** same as AT+CMDEAR=aa,bb
	1101	+)))
729	729
730		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
731	731
732		-Format: AF MM NN LL XX XX XX XX YY
733	733
734		-Where:
735	735
736		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
737		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
738		-* LL: The length of AT+COMMAND or AT+DATACUT command
739		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
740		-* 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.
	1106	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
741	741
742		-Example:
743	743
744		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
	1109	+(((
	1110	+Set the Rs485 serial communication parameters:
745	745
746		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	1112	+
	1113	+)))
747	747
748		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
	1115	+* (((
	1116	+(% style="color:#037691" %)** AT Command:**
	1117	+)))
749	749
	1119	+(((
	1120	+* Set Baud Rate
	1121	+)))
750	750
751		-0xAB downlink command can be used for set AT+SEARCHx
	1123	+**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
752	752
753		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
754	754
755		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
756		-* 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
	1126	+(((
	1127	+* Set UART Parity
	1128	+)))
757	757
758		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	1130	+**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
759	759
760	760
761		-==== Fast command to handle MODBUS device ====
	1133	+(((
	1134	+* Set STOPBIT
	1135	+)))
762	762
763		-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]].
	1137	+**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
764	764
765		-This command is valid since v1.3 firmware version
766	766
767	767
768		-AT+MBFUN has only two value:
	1141	+* (((
	1142	+(% style="color:#037691" %)** Downlink Payload:**
	1143	+)))
769	769
770		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
	1145	+(((
	1146	+**A7 01 aa bb**:  Same  AT+BAUDR=hex(aa bb)*100
	1147	+)))
771	771
772		-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.
	1149	+(((
	1150	+**Example:**
	1151	+)))
773	773
774		-* AT+MBFUN=0: Disable Modbus fast reading.
	1153	+* (((
	1154	+A7 01 00 60   same as AT+BAUDR=9600
	1155	+)))
	1156	+* (((
	1157	+A7 01 04 80  same as AT+BAUDR=115200
	1158	+)))
775	775
776		-Example:
	1160	+(((
	1161	+A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1162	+)))
777	777
778		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
779		-* 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.
780		-* 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.
	1164	+(((
	1165	+A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1166	+)))
781	781
782		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
783	783
	1169	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
784	784
785		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1171	+(((
	1172	+
	1173	+)))
786	786
	1175	+* (((
	1176	+(% style="color:#037691" %)** AT Command:**
	1177	+)))
787	787
788		-* Downlink Commands:
	1179	+**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
789	789
790		-A9 aa -à Same as AT+MBFUN=aa
	1181	+**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
791	791
792	792
793		-==== RS485 command timeout ====
	1184	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
794	794
795		-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.
796	796
797		-Default value: 0, range:  0 ~~ 5 seconds
	1187	+* (((
	1188	+(% style="color:#037691" %)** AT Command:**
	1189	+)))
798	798
	1191	+**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
799	799
800		-* AT Command:
	1193	+**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
801	801
802		-AT+CMDDLaa=hex(bb cc)
803	803
804		-Example:
	1196	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
805	805
806		-**AT+CMDDL1=1000** to send the open time to 1000ms
807	807
	1199	+* (((
	1200	+(% style="color:#037691" %)** AT Command:**
	1201	+)))
808	808
809		-* Downlink Payload:
	1203	+**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)
810	810
811		-0x AA aa bb cc
	1205	+**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.
812	812
813		-Same as: AT+CMDDLaa=hex(bb cc)
814	814
815		- Example:
	1208	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
816	816
817		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
818	818
	1211	+* (((
	1212	+(% style="color:#037691" %)** AT Command:**
	1213	+)))
819	819
820		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
	1215	+ **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)
821	821
822		-Define to use one uplink or multiple uplinks for the sampling.
	1217	+ **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.
823	823
824		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
825	825
826		-* AT Command:
	1220	+* (((
	1221	+(% style="color:#037691" %)** Downlink Payload:**
	1222	+)))
827	827
828		-AT+DATAUP=0
	1224	+**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
829	829
830		-AT+DATAUP=1
831	831
	1227	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
832	832
833		-* Downlink Payload:
834	834
835		-0xAD 00   à Same as AT+DATAUP=0
	1230	+* (((
	1231	+(% style="color:#037691" %)** AT Command:**
	1232	+)))
836	836
837		-0xAD 01   à Same as AT+DATAUP=1
	1234	+**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.
838	838
	1236	+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.
839	839
840		-==== Manually trigger an Uplink ====
	1238	+[[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"]]
841	841
842		-Ask device to send an uplink immediately.
	1240	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
843	843
844		-* Downlink Payload:
	1242	+[[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"]]
845	845
846		-0x08 FF, RS485-BL will immediately send an uplink.
	1244	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
847	847
848	848
849		-==== Clear RS485 Command ====
	1247	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
850	850
851		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
852	852
	1250	+* (((
	1251	+(% style="color:#037691" %)**Downlink Payload:**
853	853
854		-* AT Command:
	1253	+**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1254	+)))
855	855
856		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1256	+Example：
857	857
858		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1258	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
859	859
860		-Example screen shot after clear all RS485 commands.
	1260	+==== ====
861	861
	1262	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
862	862
863	863
864		-The uplink screen shot is:
	1265	+* (((
	1266	+(% style="color:#037691" %)** AT Command:**
	1267	+)))
865	865
866		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1269	+**~ ​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.
867	867
	1271	+**~ ​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.
868	868
869		-* Downlink Payload:
	1273	+ **AT+RXMODE=0,0  ** ~/~/Disable this mode (default)
870	870
871		-0x09 aa bb same as AT+CMDEAR=aa,bb
872	872
	1276	+* (((
	1277	+(% style="color:#037691" %)**Downlink Payload:**
	1278	+)))
873	873
874		-==== Set Serial Communication Parameters ====
	1280	+**A6 aa bb bb                   ** ~/~/same as AT+RXMODE=aa,bb
875	875
876		-Set the Rs485 serial communication parameters:
	1282	+[[image:image-20220824144240-1.png]]
877	877
878		-* AT Command:
879	879
880		-Set Baud Rate:
881	881
882		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1286	+== 3.6 Listening mode for RS485 network ==
883	883
884	884
885		-Set UART parity
	1289	+(((
	1290	+This feature support since firmware v1.4
	1291	+)))
886	886
887		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1293	+(((
	1294	+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.
888	888
	1296	+
	1297	+)))
889	889
890		-Set STOPBIT
	1299	+(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
891	891
892		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1301	+(((
	1302	+To enable the listening mode, use can run the command AT+RXMODE.
	1303	+)))
893	893
	1305	+(((
	1306	+
	1307	+)))
894	894
895		-* Downlink Payload:
	1309	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1310	+|=(% style="width: 100px;" %)(((
	1311	+**Command example**
	1312	+)))|=(% style="width: 400px;" %)(((
	1313	+**Function**
	1314	+)))
	1315	+|(% style="width:100px" %)(((
	1316	+AT+RXMODE=1,10
	1317	+)))|(% style="width:400px" %)(((
	1318	+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.
	1319	+)))
	1320	+|(% style="width:100px" %)(((
	1321	+AT+RXMODE=2,500
	1322	+)))|(% style="width:400px" %)(((
	1323	+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
	1324	+)))
	1325	+|(% style="width:100px" %)(((
	1326	+AT+RXMODE=0,0
	1327	+)))|(% style="width:400px" %)(((
	1328	+Disable listening mode. This is the default settings.
	1329	+)))
	1330	+|(% style="width:100px" %)(((
	1331	+
	1332	+)))|(% style="width:400px" %)(((
	1333	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1334	+)))
896	896
897		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1336	+(((
	1337	+(% style="color:#037691" %)** Downlink Command:**
	1338	+)))
898	898
899		-Example:
	1340	+(((
	1341	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
	1342	+)))
900	900
901		-* A7 01 00 60   same as AT+BAUDR=9600
902		-* A7 01 04 80  same as AT+BAUDR=115200
	1344	+(((
	1345	+
	1346	+)))
903	903
904		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1348	+(((
	1349	+**Example**:
	1350	+)))
905	905
906		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1352	+(((
	1353	+The RS485-LN is set to AT+RXMODE=2,1000
	1354	+)))
907	907
	1356	+(((
	1357	+There is a two Modbus commands in the RS485 network as below:
	1358	+)))
908	908
909		-==== Control output power duration ====
	1360	+(((
	1361	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1362	+)))
910	910
911		-User can set the output power duration before each sampling.
	1364	+(((
	1365	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1366	+)))
912	912
913		-* AT Command:
	1368	+(((
	1369	+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
	1370	+)))
914	914
915		-Example:
	1372	+(((
	1373	+(% 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" %)​
	1374	+)))
916	916
917		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
	1376	+(((
	1377	+
	1378	+)))
918	918
919		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
	1380	+(((
	1381	+(((
	1382	+(% 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.**
	1383	+)))
	1384	+)))
920	920
921	921
922		-* LoRaWAN Downlink Command:
923	923
924		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1388	+== 3.7 Buttons ==
925	925
926		-07 02 aa bb  Same as AT+3V3T=(aa bb)
927	927
	1391	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1392	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1393	+|(% 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**
	1394	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1395	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
928	928
	1397	+== 3.8 LEDs ==
929	929
930	930
931		-1.
932		-11. Buttons
	1400	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1401	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1402	+|**PWR**|Always on if there is power
	1403	+|**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.
933	933
934		-|**Button**|**Feature**
935		-|**RST**|Reboot RS485-BL
	1405	+= 4. Case Study =
936	936
937		-1.
938		-11. +3V3 Output
939	939
940		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
	1408	+User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
941	941
942		-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.
943	943
944	944
945		-The +3V3 output time can be controlled by AT Command.
	1412	+= 5. Use AT Command =
946	946
947		-**AT+3V3T=1000**
948	948
949		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1415	+== 5.1 Access AT Command ==
950	950
951	951
952		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
	1418	+(((
	1419	+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.
	1420	+)))
953	953
	1422	+(% 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" %)​
954	954
955		-1.
956		-11. +5V Output
957	957
958		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
	1425	+(((
	1426	+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:
	1427	+)))
959	959
960		-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.
	1429	+(% 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" %)​
961	961
962	962
963		-The 5V output time can be controlled by AT Command.
	1432	+(((
	1433	+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/]]
	1434	+)))
964	964
965		-**AT+5VT=1000**
966	966
967		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
968	968
	1438	+== 5.2 Common AT Command Sequence ==
969	969
970		-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.
971	971
	1441	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
972	972
973	973
	1444	+If device has not joined network yet:
974	974
975		-1.
976		-11. LEDs
	1446	+* (% style="color:#037691" %)**AT+FDR**
	1447	+* (% style="color:#037691" %)**AT+NJM=0**
	1448	+* (% style="color:#037691" %)**ATZ**
977	977
978		-|**LEDs**|**Feature**
979		-|**LED1**|Blink when device transmit a packet.
	1450	+(((
	1451	+
980	980
981		-1.
982		-11. Switch Jumper
	1453	+If device already joined network:
983	983
984		-|**Switch Jumper**|**Feature**
985		-|**SW1**|(((
986		-ISP position: Upgrade firmware via UART
	1455	+* (% style="color:#037691" %)**AT+NJM=0**
	1456	+* (% style="color:#037691" %)**ATZ**
987	987
988		-Flash position: Configure device, check running status.
	1458	+
989	989	)))
990		-|**SW2**|(((
991		-5V position: set to compatible with 5v I/O.
992	992
993		-3.3v position: set to compatible with 3.3v I/O.,
994		-)))
995	995
996		-+3.3V: is always ON
997	997
998		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1463	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
999	999
1000		-1. Case Study
1001	1001
1002		-User can check this URL for some case studies.
	1466	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1003	1003
1004		-[[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]]
	1468	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1005	1005
	1470	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1006	1006
	1472	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1007	1007
	1474	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1008	1008
1009		-1. Use AT Command
1010		-11. Access AT Command
	1476	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1011	1011
1012		-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.
	1478	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1013	1013
1014		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1480	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1015	1015
	1482	+(% 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.
1016	1016
1017		-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:
	1484	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1018	1018
1019		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1020	1020
	1487	+(% style="color:red" %)**Note:**
1021	1021
	1489	+(((
	1490	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1491	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1492	+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.
	1493	+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
1022	1022
1023		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
	1495	+
	1496	+)))
1024	1024
	1498	+(% 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" %)​
1025	1025
1026	1026
1027		-1.
1028		-11. Common AT Command Sequence
1029		-111. Multi-channel ABP mode (Use with SX1301/LG308)
1030	1030
1031		-If device has not joined network yet:
	1502	+= 6. FAQ =
1032	1032
1033		-AT+FDR
1034	1034
1035		-AT+NJM=0
	1505	+== 6.1 How to upgrade the image? ==
1036	1036
1037		-ATZ
1038	1038
	1508	+(((
	1509	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1510	+)))
1039	1039
1040		-If device already joined network:
	1512	+* (((
	1513	+Support new features
	1514	+)))
	1515	+* (((
	1516	+For bug fix
	1517	+)))
	1518	+* (((
	1519	+Change LoRaWAN bands.
	1520	+)))
1041	1041
1042		-AT+NJM=0
	1522	+(((
	1523	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1524	+)))
1043	1043
1044		-ATZ
	1526	+(% 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"]]
1045	1045
1046		-1.
1047		-11.
1048		-111. Single-channel ABP mode (Use with LG01/LG02)
	1528	+(% title="Click and drag to resize" %)​
1049	1049
1050		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1530	+(((
	1531	+(% 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]].
	1532	+)))
1051	1051
1052		-AT+NJM=0 Set to ABP mode
	1534	+(((
	1535	+(% 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]].
	1536	+)))
1053	1053
1054		-AT+ADR=0 Set the Adaptive Data Rate Off
	1538	+(((
	1539	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
	1540	+)))
1055	1055
1056		-AT+DR=5  Set Data Rate
	1542	+(((
	1543	+(((
	1544	+(((
	1545	+(% 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.
	1546	+)))
	1547	+)))
	1548	+)))
1057	1057
1058		-AT+TDC=60000  Set transmit interval to 60 seconds
1059	1059
1060		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1551	+(% 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" %)​
1061	1061
1062		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1063	1063
1064		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1554	+(% 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" %)​
1065	1065
1066		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1067	1067
1068		-ATZ          Reset MCU
	1557	+(% 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" %)​
1069	1069
1070		-**Note:**
1071	1071
1072		-1. Make sure the device is set to ABP mode in the IoT Server.
1073		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1074		-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.
1075		-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
	1560	+(% 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:**
1076	1076
1077		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
	1562	+(% 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" %)​
1078	1078
1079	1079
1080		-1. FAQ
1081		-11. How to upgrade the image?
1082	1082
1083		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1566	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1084	1084
1085		-* Support new features
1086		-* For bug fix
1087		-* Change LoRaWAN bands.
1088	1088
1089		-Below shows the hardware connection for how to upload an image to RS485-BL:
	1569	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1090	1090
1091		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1092	1092
1093		-**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]].
1094	1094
1095		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1573	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1096	1096
1097		-**Step3: **Open flashloader; choose the correct COM port to update.
1098	1098
	1576	+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"]].
1099	1099
1100		-|(((
1101		-HOLD PRO then press the RST button, SYS will be ON, then click next
1102		-)))
1103	1103
1104		-|(((
1105		-Board detected
1106		-)))
1107	1107
1108		-|(((
1109		-
1110		-)))
	1580	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1111	1111
1112		-[[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]]
1113	1113
	1583	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1114	1114
	1585	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1115	1115
1116		-[[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]]
1117	1117
1118	1118
1119		-[[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]]
	1589	+== 6.5 Can i use point to point communication for RS485-LN? ==
1120	1120
1121	1121
1122		-1.
1123		-11. How to change the LoRa Frequency Bands/Region?
	1592	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1124	1124
1125		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1126	1126
1127	1127
	1596	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1128	1128
1129		-1.
1130		-11. How many RS485-Slave can RS485-BL connects?
1131	1131
1132		-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]].
	1599	+[[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	1134
1135	1135
	1603	+= 7. Trouble Shooting =
1136	1136
1137		-1. Trouble Shooting
1138		-11. Downlink doesn’t work, how to solve it?
1139	1139
1140		-Please see this link for debug:
	1606	+== 7.1 Downlink doesn't work, how to solve it? ==
1141	1141
1142		-[[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]]
1143	1143
	1609	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1144	1144
1145	1145
1146		-1.
1147		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1148	1148
1149		-It might about the channels mapping. Please see for detail.
	1613	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1150	1150
1151		-[[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]]
1152	1152
	1616	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1153	1153
1154	1154
1155		-1. Order Info
1156	1156
1157		-**Part Number: RS485-BL-XXX**
	1620	+= 8. Order Info =
1158	1158
1159		-**XXX:**
1160	1160
1161		-* **EU433**: frequency bands EU433
1162		-* **EU868**: frequency bands EU868
1163		-* **KR920**: frequency bands KR920
1164		-* **CN470**: frequency bands CN470
1165		-* **AS923**: frequency bands AS923
1166		-* **AU915**: frequency bands AU915
1167		-* **US915**: frequency bands US915
1168		-* **IN865**: frequency bands IN865
1169		-* **RU864**: frequency bands RU864
1170		-* **KZ865: **frequency bands KZ865
	1623	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1171	1171
1172		-1. Packing Info
	1625	+(% style="color:blue" %)**XXX:**
1173	1173
	1627	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1628	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1629	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1630	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1631	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1632	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1633	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1634	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1635	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1636	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
	1637	+
	1638	+= 9.Packing Info =
	1639	+
	1640	+
1174	1174	**Package Includes**:
1175	1175
1176		-* RS485-BL x 1
	1643	+* RS485-LN x 1
1177	1177	* Stick Antenna for LoRa RF part x 1
1178	1178	* Program cable x 1
1179	1179
...	...	@@ -1184,9 +1184,68 @@
1184	1184	* Package Size / pcs : 14.5 x 8 x 5 cm
1185	1185	* Weight / pcs : 170g
1186	1186
1187		-1. Support
	1654	+= 10. FCC Caution for RS485LN-US915 =
1188	1188
1189		-* 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.
1190		-* 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
1191	1191
1192		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1657	+(((
	1658	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1659	+)))
	1660	+
	1661	+(((
	1662	+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.
	1663	+)))
	1664	+
	1665	+(((
	1666	+
	1667	+)))
	1668	+
	1669	+(((
	1670	+(% style="color:red" %)**IMPORTANT NOTE:**
	1671	+)))
	1672	+
	1673	+(((
	1674	+(% 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:
	1675	+)))
	1676	+
	1677	+(((
	1678	+—Reorient or relocate the receiving antenna.
	1679	+)))
	1680	+
	1681	+(((
	1682	+—Increase the separation between the equipment and receiver.
	1683	+)))
	1684	+
	1685	+(((
	1686	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1687	+)))
	1688	+
	1689	+(((
	1690	+—Consult the dealer or an experienced radio/TV technician for help.
	1691	+)))
	1692	+
	1693	+(((
	1694	+
	1695	+)))
	1696	+
	1697	+(((
	1698	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1699	+)))
	1700	+
	1701	+(((
	1702	+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.
	1703	+)))
	1704	+
	1705	+
	1706	+
	1707	+= 11. Support =
	1708	+
	1709	+
	1710	+* (((
	1711	+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.
	1712	+)))
	1713	+* (((
	1714	+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]].
	1715	+
	1716	+
	1717	+
	1718	+)))

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