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

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Details

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Title

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

Author

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1		-XWiki.Xiaoling
	1	+XWiki.Edwin

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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31	31
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33	33	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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34	34
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35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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38	38
39		-[[image:1653267211009-519.png||height="419" width="724"]]
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40	40
41	41
	73	+
42	42	== 1.2 Specifications ==
43	43
44	44
45		-**Hardware System:**
	77	+(% style="color:#037691" %)**Hardware System:**
46	46
47	47	* STM32L072CZT6 MCU
48	48	* SX1276/78 Wireless Chip
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50	50	** Idle: 32mA@12v
51	51	** 20dB Transmit: 65mA@12v
52	52
53		-**Interface for Model:**
	85	+(% style="color:#037691" %)**Interface for Model:**
54	54
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
	90	+(% style="color:#037691" %)**LoRa Spec:**
59	59
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 Mhz
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74	74	* Preamble detection.
75	75	* 127 dB Dynamic Range RSSI.
76	76	* Automatic RF Sense and CAD with ultra-fast AFC.
77		-* Packet engine up to 256 bytes with CRC.
	109	+* Packet engine up to 256 bytes with CRC
78	78
79	79
80		-
81	81	== 1.3 Features ==
82	82
	114	+
83	83	* LoRaWAN Class A & Class C protocol (default Class C)
84		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	116	+* 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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90	90	* Support Interrupt uplink (Since hardware version v1.2)
91	91
92	92
93		-
94	94	== 1.4 Applications ==
95	95
	127	+
96	96	* Smart Buildings & Home Automation
97	97	* Logistics and Supply Chain Management
98	98	* Smart Metering
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101	101	* Smart Factory
102	102
103	103
104		-
105	105	== 1.5 Firmware Change log ==
106	106
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107	107	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
108	108
109	109
	142	+
110	110	== 1.6 Hardware Change log ==
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112	112	(((
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114	114	v1.2: Add External Interrupt Pin.
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116	116	v1.0: Release
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121	121
122	122	= 2. Power ON Device =
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124	124	(((
125	125	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
126	126
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131	131	Once there is power, the RS485-LN will be on.
132	132	)))
133	133
134		-[[image:1653268091319-405.png]]
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138	138
139	139	= 3. Operation Mode =
140	140
	182	+
141	141	== 3.1 How it works? ==
142	142
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143	143	(((
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144	144	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
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148	148
149	149	== 3.2 Example to join LoRaWAN network ==
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151	151	Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here.
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153		-[[image:1653268155545-638.png||height="334" width="724"]]
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156	156	(((
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158	158	The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
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161	161	(((
162	162	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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165		-[[image:1653268227651-549.png||height="592" width="720"]]
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167	167	(((
168		-The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
	219	+The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
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	221	+
169	169	)))
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172		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	225	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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180		-[[image:1652953462722-299.png]]
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184	184	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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187	187	(((
188		-Add APP EUI in the application.
	244	+**Add APP EUI in the application.**
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192		-[[image:image-20220519174512-1.png]]
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194		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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196		-[[image:image-20220519174512-3.png||height="556" width="724"]]
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198		-[[image:image-20220519174512-4.png]]
	254	+(% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
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	256	+
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	258	+
200	200	You can also choose to create the device manually.
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202		-[[image:1652953542269-423.png||height="710" width="723"]]
	261	+(% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
203	203
204		-Add APP KEY and DEV EUI
205	205
206		-[[image:1652953553383-907.png||height="514" width="724"]]
207	207
	265	+**Add APP KEY and DEV EUI**
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	268	+
	269	+
	270	+
209	209	(((
210		-**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
	272	+(% 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.
	273	+
	274	+
211	211	)))
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213		-[[image:1652953568895-172.png||height="232" width="724"]]
	277	+(% 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" %)​
214	214
215	215
	280	+
216	216	== 3.3 Configure Commands to read data ==
217	217
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218	218	(((
219	219	(((
220		-There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	286	+(((
	287	+There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
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	289	+
221	221	)))
	291	+)))
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223	223	(((
224		-(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
	294	+(((
	295	+(% 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**
	296	+)))
225	225
	298	+
226	226
227	227	)))
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229	229
230		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	303	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
231	231
	305	+
232	232	To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
233	233
234		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
235		-|(((
	308	+
	309	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	310	+|=(% style="width: 110px;" %)(((
236	236	**AT Commands**
237		-)))|(% style="width:285px" %)(((
	312	+)))|=(% style="width: 190px;" %)(((
238	238	**Description**
239		-)))|(% style="width:347px" %)(((
	314	+)))|=(% style="width: 190px;" %)(((
240	240	**Example**
241	241	)))
242		-|(((
	317	+|(% style="width:110px" %)(((
243	243	AT+BAUDR
244		-)))|(% style="width:285px" %)(((
	319	+)))|(% style="width:190px" %)(((
245	245	Set the baud rate (for RS485 connection). Default Value is: 9600.
246		-)))|(% style="width:347px" %)(((
	321	+)))|(% style="width:190px" %)(((
247	247	(((
248	248	AT+BAUDR=9600
249	249	)))
...	...	@@ -252,11 +252,11 @@
252	252	Options: (1200,2400,4800,14400,19200,115200)
253	253	)))
254	254	)))
255		-|(((
	330	+|(% style="width:110px" %)(((
256	256	AT+PARITY
257		-)))|(% style="width:285px" %)(((
	332	+)))|(% style="width:190px" %)(((
258	258	Set UART parity (for RS485 connection)
259		-)))|(% style="width:347px" %)(((
	334	+)))|(% style="width:190px" %)(((
260	260	(((
261	261	AT+PARITY=0
262	262	)))
...	...	@@ -265,9 +265,9 @@
265	265	Option: 0: no parity, 1: odd parity, 2: even parity
266	266	)))
267	267	)))
268		-|(((
	343	+|(% style="width:110px" %)(((
269	269	AT+STOPBIT
270		-)))|(% style="width:285px" %)(((
	345	+)))|(% style="width:190px" %)(((
271	271	(((
272	272	Set serial stopbit (for RS485 connection)
273	273	)))
...	...	@@ -275,7 +275,7 @@
275	275	(((
276	276
277	277	)))
278		-)))|(% style="width:347px" %)(((
	353	+)))|(% style="width:190px" %)(((
279	279	(((
280	280	AT+STOPBIT=0 for 1bit
281	281	)))
...	...	@@ -289,906 +289,1341 @@
289	289	)))
290	290	)))
291	291
	367	+
292	292	=== 3.3.2 Configure sensors ===
293	293
	370	+
294	294	(((
295	295	(((
296		-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.
	373	+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.
	374	+
	375	+
297	297	)))
298	298	)))
299	299
300		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
301		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
302		-|AT+CFGDEV|(% style="width:418px" %)(((
	379	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	380	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	381	+|AT+CFGDEV|(% style="width:110px" %)(((
	382	+(((
303	303	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	384	+)))
304	304
	386	+(((
305	305	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	388	+)))
306	306
	390	+(((
307	307	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
308		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	392	+)))
	393	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
309	309
	395	+
310	310	=== 3.3.3 Configure read commands for each sampling ===
311	311
	398	+
312	312	(((
313		-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.
	400	+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.
	401	+
	402	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	403	+
	404	+This section describes how to achieve above goals.
	405	+
	406	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	407	+
	408	+
	409	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	410	+
	411	+
	412	+~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.
	413	+
	414	+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.
	415	+
	416	+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
	417	+
	418	+
	419	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	420	+
	421	+Below are examples for the how above AT Commands works.
	422	+
	423	+
	424	+(% 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:
	425	+
	426	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	427	+|(% style="width:496px" %)(((
	428	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	429	+
	430	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	431	+
	432	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
314	314	)))
315	315
316		-(((
317		-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.
	435	+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.
	436	+
	437	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	438	+
	439	+
	440	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	441	+
	442	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	443	+|(% style="width:510px" %)(((
	444	+**AT+DATACUTx=a,b,c**
	445	+
	446	+* **a: length for the return of AT+COMMAND**
	447	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	448	+* **c: define the position for valid value.  **
318	318	)))
319	319
	451	+**Examples:**
	452	+
	453	+
	454	+* (% style="color:#037691" %)**Grab bytes**
	455	+
	456	+(% 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" %)​
	457	+
	458	+
	459	+
	460	+* (% style="color:#037691" %)**Grab a section**
	461	+
	462	+(% 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" %)​
	463	+
	464	+
	465	+
	466	+* (% style="color:#037691" %)**Grab different sections**
	467	+
	468	+(% 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" %)​
	469	+
	470	+
	471	+
	472	+)))
	473	+
	474	+=== 3.3.4 Compose the uplink payload ===
	475	+
	476	+
320	320	(((
321		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	478	+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.**
	479	+
	480	+
322	322	)))
323	323
324	324	(((
325		-This section describes how to achieve above goals.
	484	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	485	+
	486	+
326	326	)))
327	327
328	328	(((
329		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	490	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
330	330	)))
331	331
332	332	(((
333		-**Command from RS485-BL to Sensor:**
	494	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
334	334	)))
335	335
336	336	(((
337		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
	498	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	499	+
	500	+
338	338	)))
339	339
	503	+[[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
	504	+
	505	+
	506	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
	507	+
	508	+
	509	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	510	+
	511	+Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	512	+
	513	+
	514	+1. PAYVER: Defined by AT+PAYVER
	515	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	516	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	517	+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
	518	+
	519	+
	520	+(% 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" %)​
	521	+
	522	+
	523	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	524	+
	525	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	526	+
	527	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	528	+
	529	+DATA3=the rest of Valid value of RETURN10= **30**
	530	+
	531	+
	532	+(% 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:**
	533	+
	534	+
	535	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	536	+
	537	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	538	+
	539	+ * For US915 band, max 11 bytes for each uplink.
	540	+
	541	+ ~* For all other bands: max 51 bytes for each uplink.
	542	+
	543	+
	544	+(% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	545	+
	546	+(% 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)**
	547	+
	548	+
	549	+
	550	+Below are the uplink payloads:
	551	+
	552	+
	553	+(% 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" %)​
	554	+
	555	+
	556	+
	557	+=== 3.3.5 Uplink on demand ===
	558	+
	559	+
	560	+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.
	561	+
	562	+(% style="color:blue" %)**Downlink control command:**
	563	+
	564	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	565	+
	566	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	567	+
	568	+
	569	+
	570	+=== 3.3.6 Uplink on Interrupt ===
	571	+
	572	+
	573	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	574	+
	575	+
	576	+(% 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" %)​
	577	+
	578	+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.
	579	+
	580	+
	581	+
	582	+== 3.4 Uplink Payload ==
	583	+
	584	+
	585	+(% 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"]]
	586	+
	587	+(% title="Click and drag to resize" %)​
	588	+
	589	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	590	+
	591	+
	592	+
	593	+== 3.5 Configure RS485-LN via AT or Downlink ==
	594	+
	595	+
340	340	(((
341		-**Handle return from sensors to RS485-BL**:
	597	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
342	342	)))
343	343
344	344	(((
345		-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**
	601	+There are two kinds of Commands:
346	346	)))
347	347
348	348	* (((
349		-**AT+DATACUT**
	605	+(% 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]]
350	350	)))
351	351
	608	+* (((
	609	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	610	+)))
	611	+
352	352	(((
353		-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.
	613	+
354	354	)))
355	355
	616	+
	617	+
	618	+=== 3.5.1 Common Commands ===
	619	+
	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: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
	622	+
	623	+
	624	+
	625	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
	626	+
	627	+
	628	+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.
	629	+
	630	+
	631	+(% 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"]]
	632	+
	633	+(% title="Click and drag to resize" %)​
	634	+
	635	+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)
	636	+
	637	+
	638	+
	639	+=== 3.5.3 Sensor related commands ===
	640	+
	641	+
	642	+
	643	+
	644	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	645	+
	646	+
	647	+(((
	648	+This command is used to configure the RS485 devices; they won't be used during sampling.
	649	+)))
	650	+
	651	+(((
	652	+* (% style="color:#037691" %)**AT Command**
	653	+
	654	+(((
	655	+(% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
	656	+)))
	657	+)))
	658	+
	659	+(((
	660	+
	661	+)))
	662	+
356	356	* (((
357		-**AT+SEARCH**
	664	+(% style="color:#037691" %)**Downlink Payload**
358	358	)))
359	359
360	360	(((
361		-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.
	668	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
362	362	)))
363	363
364	364	(((
365		-**Define wait timeout:**
	672	+Where:
366	366	)))
367	367
	675	+* (((
	676	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	677	+)))
	678	+* (((
	679	+NN: The length of RS485 command
	680	+)))
	681	+* (((
	682	+XX XX XX XX: RS485 command total NN bytes
	683	+)))
	684	+* (((
368	368	(((
369		-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
	686	+YY: How many bytes will be uplink from the return of this RS485 command,
370	370	)))
371	371
	689	+* (((
	690	+if YY=0, RS485-LN will execute the downlink command without uplink;
	691	+)))
	692	+* (((
	693	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	694	+)))
	695	+* (((
	696	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	697	+)))
	698	+)))
	699	+
372	372	(((
373		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	701	+
	702	+
	703	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
374	374	)))
375	375
376		-**Examples:**
	706	+(((
	707	+To connect a Modbus Alarm with below commands.
	708	+)))
377	377
378		-Below are examples for the how above AT Commands works.
	710	+* (((
	711	+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.
	712	+)))
379	379
380		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	714	+* (((
	715	+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.
	716	+)))
381	381
382		-(% border="1" class="table-bordered" %)
383		-|(((
384		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	718	+(((
	719	+
385	385
386		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	721	+So if user want to use downlink command to control to RS485 Alarm, he can use:
	722	+)))
387	387
388		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	724	+(((
	725	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
389	389	)))
390	390
391	391	(((
392		-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.
	729	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
393	393	)))
394	394
395	395	(((
396		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	733	+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.
397	397	)))
398	398
399	399	(((
400		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	737	+
401	401	)))
402	402
403		-(% border="1" class="table-bordered" %)
404		-|(((
405		-**AT+SEARCHx=aa,xx xx xx xx xx**
	740	+(((
	741	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	742	+)))
406	406
407		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
408		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
	744	+(((
	745	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	746	+)))
409	409
	748	+(((
410	410
411	411	)))
412	412
413		-**Examples:**
	752	+(((
	753	+(((
	754	+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**
	755	+)))
414	414
415		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	757	+
	758	+)))
416	416
417		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	760	+(((
	761	+ (% 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" %)​
	762	+)))
418	418
419		-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**
420	420
421		-[[image:1653269403619-508.png]]
422	422
423		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
424	424
425		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
	767	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
426	426
427		-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**
428	428
429		-[[image:1653269438444-278.png]]
	770	+(((
	771	+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.
	772	+)))
430	430
431		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	774	+(((
	775	+* (% style="color:#037691" %)**AT Command:**
432	432
433		-|(((
434		-**AT+DATACUTx=a,b,c**
	777	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
435	435
436		-* **a: length for the return of AT+COMMAND**
437		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
438		-* **c: define the position for valid value.  **
	779	+
439	439	)))
440	440
441		-Examples:
	782	+* (((
	783	+(% style="color:#037691" %)**Downlink Payload:**
	784	+)))
442	442
443		-* Grab bytes:
	786	+(((
	787	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	788	+)))
444	444
445		-[[image:1653269551753-223.png||height="311" width="717"]]
	790	+(((
	791	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	792	+)))
446	446
447		-* Grab a section.
448	448
449		-[[image:1653269568276-930.png||height="325" width="718"]]
	795	+**1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
450	450
451		-* Grab different sections.
452	452
453		-[[image:1653269593172-426.png||height="303" width="725"]]
	798	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
454	454
455		-(% style="color:red" %)**Note:**
456	456
457		-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.
458	458
459		-Example:
	802	+**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.**
460	460
461		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
462	462
463		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	805	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
464	464
465		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
466	466
467		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
468	468
469		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
470	470
471		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	810	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
472	472
473		-[[image:1653269618463-608.png]]
474	474
475		-=== 3.3.4 Compose the uplink payload ===
	813	+(((
	814	+AT+COMMANDx or AT+DATACUTx
	815	+)))
476	476
477	477	(((
478		-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.**
	818	+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"]].
479	479	)))
480	480
481	481	(((
482		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	822	+
483	483	)))
484	484
	825	+* (((
	826	+(% style="color:#037691" %)**AT Command:**
	827	+)))
	828	+
	829	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
	830	+
	831	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
	832	+
	833	+
	834	+* (((
	835	+(% style="color:#037691" %)**Downlink Payload:**
	836	+)))
	837	+
485	485	(((
486		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	839	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	840	+
	841	+
487	487	)))
488	488
489	489	(((
490		-Final Payload is
	845	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
	846	+
	847	+
491	491	)))
492	492
493	493	(((
494		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	851	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
495	495	)))
496	496
497	497	(((
498		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	855	+Where:
499	499	)))
500	500
501		-[[image:1653269759169-150.png||height="513" width="716"]]
	858	+* (((
	859	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	860	+)))
	861	+* (((
	862	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	863	+)))
	864	+* (((
	865	+LL:  The length of AT+COMMAND or AT+DATACUT command
	866	+)))
	867	+* (((
	868	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	869	+)))
	870	+* (((
	871	+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.
	872	+)))
502	502
503		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	874	+(((
	875	+
504	504
505		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	877	+**Example:**
	878	+)))
506	506
507		-Final Payload is
	880	+(((
	881	+(% 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
	882	+)))
508	508
509		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	884	+(((
	885	+(% 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**
	886	+)))
510	510
511		-1. Battery Info (2 bytes): Battery voltage
512		-1. PAYVER (1 byte): Defined by AT+PAYVER
513		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
514		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
515		-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
	888	+(((
	889	+(% 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**
	890	+)))
516	516
517		-[[image:1653269916228-732.png||height="433" width="711"]]
518	518
519	519
520		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
521	521
522		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	895	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
523	523
524		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
525	525
526		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	898	+(((
	899	+(% style="color:#4472c4" %)** AT+MBFUN**(%%) is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
	900	+)))
527	527
528		-Below are the uplink payloads:
	902	+(((
	903	+This command is valid since v1.3 firmware version
	904	+)))
529	529
530		-[[image:1653270130359-810.png]]
	906	+(((
	907	+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.
	908	+)))
531	531
	910	+(((
	911	+
	912	+)))
532	532
533		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	914	+(((
	915	+**Example:**
	916	+)))
534	534
535		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	918	+* (((
	919	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	920	+)))
	921	+* (((
	922	+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.
	923	+)))
	924	+* (((
	925	+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.
536	536
537		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	927	+
	928	+)))
538	538
539		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	930	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
540	540
541		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	932	+(% title="Click and drag to resize" %)​
542	542
543		-=== 3.3.5 Uplink on demand ===
	934	+(% 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" %)​
544	544
545		-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.
546	546
547		-Downlink control command:
548	548
549		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
550	550
551		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
	939	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
552	552
553	553
	942	+(((
	943	+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.
	944	+)))
554	554
555		-1.
556		-11.
557		-111. Uplink on Interrupt
	946	+(((
	947	+Default value: 0, range:  0 ~~ 65 seconds
	948	+)))
558	558
559		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	950	+(((
	951	+* (% style="color:#037691" %)** AT Command:**
560	560
561		-AT+INTMOD=0  Disable Interrupt
	953	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	954	+)))
562	562
563		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	956	+(((
	957	+
564	564
565		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	959	+**Example:**
	960	+)))
566	566
567		-AT+INTMOD=3  Interrupt trigger by rising edge.
	962	+(((
	963	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	964	+)))
568	568
	966	+(((
	967	+
	968	+)))
569	569
570		-1.
571		-11. Uplink Payload
	970	+* (((
	971	+(% style="color:#037691" %)** Downlink Payload:**
	972	+)))
572	572
573		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
574		-|Value|(((
575		-Battery(mV)
	974	+(((
	975	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	976	+)))
576	576
577		-&
	978	+(((
	979	+
578	578
579		-Interrupt _Flag
580		-)))|(((
581		-PAYLOAD_VER
	981	+**Example:**
	982	+)))
582	582
583		-
584		-)))|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.
	984	+(((
	985	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	986	+)))
585	585
586		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
587	587
588	588
589		-function Decoder(bytes, port) {
590	590
591		-~/~/Payload Formats of RS485-BL Deceive
	991	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
592	592
593		-return {
594	594
595		- ~/~/Battery,units:V
	994	+(((
	995	+Define to use one uplink or multiple uplinks for the sampling.
	996	+)))
596	596
597		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
	998	+(((
	999	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
598	598
599		- ~/~/GPIO_EXTI
	1001	+
	1002	+)))
600	600
601		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	1004	+(((
	1005	+* (% style="color:#037691" %)** AT Command:**
602	602
603		- ~/~/payload of version
	1007	+(% style="color:#4472c4" %)** AT+DATAUP=0**
604	604
605		- Pay_ver:bytes[2],
	1009	+(% style="color:#4472c4" %)** AT+DATAUP=1**
606	606
607		- };
	1011	+
	1012	+)))
608	608
609		- }
	1014	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
610	610
	1016	+Each uplink is sent to the server at 20-second intervals when segmented.
611	611
612	612
	1019	+* (((
	1020	+(% style="color:#037691" %)** Downlink Payload:**
	1021	+)))
613	613
	1023	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
614	614
	1025	+(% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
615	615
616	616
617		-TTN V3 uplink screen shot.
	1028	+* (((
	1029	+(% style="color:#037691" %)** AT Command:**
	1030	+)))
618	618
619		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1032	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
620	620
621		-1.
622		-11. Configure RS485-BL via AT or Downlink
623	623
624		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	1035	+* (((
	1036	+(% style="color:#037691" %)** Downlink Payload:**
	1037	+)))
625	625
626		-There are two kinds of Commands:
	1039	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
627	627
628		-* **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
	1041	+Each uplink is sent to the server at 20-second intervals when segmented.
629	629
630		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
631	631
632		-1.
633		-11.
634		-111. Common Commands:
635	635
636		-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]]
637	637
	1046	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
638	638
639		-1.
640		-11.
641		-111. Sensor related commands:
642	642
643		-==== Choose Device Type (RS485 or TTL) ====
	1049	+(((
	1050	+Ask device to send an uplink immediately.
	1051	+)))
644	644
645		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	1053	+* (((
	1054	+(% style="color:#037691" %)** AT Command:**
	1055	+)))
646	646
647		-* AT Command
	1057	+(((
	1058	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1059	+)))
648	648
649		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	1061	+(((
	1062	+
	1063	+)))
650	650
651		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	1065	+* (((
	1066	+(% style="color:#037691" %)** Downlink Payload:**
	1067	+)))
652	652
	1069	+(((
	1070	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1071	+)))
653	653
654		-* Downlink Payload
655	655
656		-**0A aa**     à same as AT+MOD=aa
657	657
658	658
	1076	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
659	659
660		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
661	661
662		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	1079	+(((
	1080	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
663	663
664		-* AT Command
	1082	+
	1083	+)))
665	665
666		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	1085	+* (((
	1086	+(% style="color:#037691" %)** AT Command:**
	1087	+)))
667	667
668		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1089	+(((
	1090	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1091	+)))
669	669
	1093	+(((
	1094	+
670	670
	1096	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1097	+)))
671	671
672		-* Downlink Payload
	1099	+(((
	1100	+Example screen shot after clear all RS485 commands.
	1101	+)))
673	673
674		-Format: A8 MM NN XX XX XX XX YY
	1103	+(((
	1104	+
	1105	+)))
675	675
676		-Where:
	1107	+(((
	1108	+The uplink screen shot is:
	1109	+)))
677	677
678		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
679		-* NN: The length of RS485 command
680		-* XX XX XX XX: RS485 command total NN bytes
681		-* 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
	1111	+(% 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" %)​
682	682
683		-**Example 1:**
684	684
685		-To connect a Modbus Alarm with below commands.
	1114	+* (((
	1115	+(% style="color:#037691" %)** Downlink Payload:**
	1116	+)))
686	686
687		-* 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.
	1118	+(((
	1119	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1120	+)))
688	688
689		-* 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.
690	690
691		-So if user want to use downlink command to control to RS485 Alarm, he can use:
692	692
693		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
694	694
695		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
	1125	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
696	696
697		-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.
698	698
	1128	+(((
	1129	+Set the Rs485 serial communication parameters:
	1130	+)))
699	699
700		-**Example 2:**
	1132	+(((
	1133	+(% style="color:#037691" %)**AT Command:**
	1134	+)))
701	701
702		-Check TTL Sensor return:
	1136	+(((
	1137	+* Set Baud Rate
	1138	+)))
703	703
704		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1140	+(% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
705	705
706	706
	1143	+(((
	1144	+* Set UART Parity
	1145	+)))
707	707
	1147	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
708	708
709		-==== Set Payload version ====
710	710
711		-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.
	1150	+(((
	1151	+* Set STOPBIT
	1152	+)))
712	712
713		-* AT Command:
	1154	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
714	714
715		-AT+PAYVER: Set PAYVER field = 1
716	716
	1157	+(((
	1158	+(% style="color:#037691" %)**Downlink Payload:**
	1159	+)))
717	717
718		-* Downlink Payload:
	1161	+(((
	1162	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1163	+)))
719	719
720		-0xAE 01   à Set PAYVER field =  0x01
	1165	+(((
	1166	+**Example:**
	1167	+)))
721	721
722		-0xAE 0F   à Set PAYVER field =  0x0F
	1169	+* (((
	1170	+A7 01 00 60  same as AT+BAUDR=9600
	1171	+)))
	1172	+* (((
	1173	+A7 01 04 80  same as AT+BAUDR=115200
	1174	+)))
723	723
	1176	+(((
	1177	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1178	+)))
724	724
725		-==== Set RS485 Sampling Commands ====
	1180	+(((
	1181	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1182	+)))
726	726
727		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
728	728
729		-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]].
730	730
731	731
732		-* AT Command:
733	733
734		-AT+COMMANDx: Configure RS485 read command to sensor.
	1188	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
735	735
736		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1190	+(((
	1191	+
	1192	+)))
737	737
738		-AT+SEARCHx: Configure search command
	1194	+* (((
	1195	+(% style="color:#037691" %)** AT Command:**
	1196	+)))
739	739
	1198	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
740	740
741		-* Downlink Payload:
	1200	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
742	742
743		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
744	744
745		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
746	746
747		-Format: AF MM NN LL XX XX XX XX YY
748	748
749		-Where:
	1205	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
750	750
751		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
752		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
753		-* LL: The length of AT+COMMAND or AT+DATACUT command
754		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
755		-* 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.
756	756
757		-Example:
	1208	+* (((
	1209	+(% style="color:#037691" %)** AT Command:**
	1210	+)))
758	758
759		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
	1212	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
760	760
761		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	1214	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
762	762
763		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
764	764
765	765
766		-0xAB downlink command can be used for set AT+SEARCHx
767	767
768		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	1219	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
769	769
770		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
771		-* 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
772	772
773		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	1222	+* (((
	1223	+(% style="color:#037691" %)** AT Command:**
	1224	+)))
774	774
	1226	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
775	775
776		-==== Fast command to handle MODBUS device ====
	1228	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
777	777
778		-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]].
779	779
780		-This command is valid since v1.3 firmware version
781	781
782	782
783		-AT+MBFUN has only two value:
	1233	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
784	784
785		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
786	786
787		-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.
	1236	+* (((
	1237	+(% style="color:#037691" %)** AT Command:**
	1238	+)))
788	788
789		-* AT+MBFUN=0: Disable Modbus fast reading.
	1240	+ (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
790	790
791		-Example:
	1242	+ (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
792	792
793		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
794		-* 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.
795		-* 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.
796	796
797		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
	1245	+* (((
	1246	+(% style="color:#037691" %)** Downlink Payload:**
	1247	+)))
798	798
	1249	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
799	799
800		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
801	801
802	802
803		-* Downlink Commands:
804	804
805		-A9 aa -à Same as AT+MBFUN=aa
	1254	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
806	806
807	807
808		-==== RS485 command timeout ====
	1257	+* (((
	1258	+(% style="color:#037691" %)** AT Command:**
	1259	+)))
809	809
810		-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.
	1261	+(% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
811	811
812		-Default value: 0, range:  0 ~~ 5 seconds
813	813
	1264	+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.
814	814
815		-* AT Command:
816	816
817		-AT+CMDDLaa=hex(bb cc)
	1267	+[[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"]]
818	818
819		-Example:
820	820
821		-**AT+CMDDL1=1000** to send the open time to 1000ms
822	822
	1271	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
823	823
824		-* Downlink Payload:
825	825
826		-0x AA aa bb cc
	1274	+[[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"]]
827	827
828		-Same as: AT+CMDDLaa=hex(bb cc)
829	829
830		- Example:
	1277	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
831	831
832		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
833	833
834	834
835		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
836	836
837		-Define to use one uplink or multiple uplinks for the sampling.
	1282	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
838	838
839		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
840	840
841		-* AT Command:
	1285	+(((
	1286	+* (% style="color:#037691" %)**Downlink Payload:**
842	842
843		-AT+DATAUP=0
	1288	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1289	+)))
844	844
845		-AT+DATAUP=1
846	846
	1292	+Example：
847	847
848		-* Downlink Payload:
849	849
850		-0xAD 00   à Same as AT+DATAUP=0
	1295	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
851	851
852		-0xAD 01   à Same as AT+DATAUP=1
853	853
854	854
855		-==== Manually trigger an Uplink ====
856	856
857		-Ask device to send an uplink immediately.
	1300	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
858	858
859		-* Downlink Payload:
860	860
861		-0x08 FF, RS485-BL will immediately send an uplink.
	1303	+* (((
	1304	+(% style="color:#037691" %)** AT Command:**
	1305	+)))
862	862
	1307	+(% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
863	863
864		-==== Clear RS485 Command ====
	1309	+(% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
865	865
866		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	1311	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
867	867
868	868
869		-* AT Command:
	1314	+* (((
	1315	+(% style="color:#037691" %)**Downlink Payload:**
	1316	+)))
870	870
871		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1318	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
872	872
873		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1320	+[[image:image-20220824144240-1.png]]
874	874
875		-Example screen shot after clear all RS485 commands.
876	876
877	877
	1324	+== 3.6 Listening mode for RS485 network ==
878	878
879		-The uplink screen shot is:
880	880
881		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1327	+(((
	1328	+This feature support since firmware v1.4
	1329	+)))
882	882
	1331	+(((
	1332	+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.
883	883
884		-* Downlink Payload:
	1334	+
	1335	+)))
885	885
886		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1337	+(% 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"]]
887	887
	1339	+(% title="Click and drag to resize" %)​
888	888
889		-==== Set Serial Communication Parameters ====
	1341	+(((
	1342	+To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
	1343	+)))
890	890
891		-Set the Rs485 serial communication parameters:
	1345	+(((
	1346	+
	1347	+)))
892	892
893		-* AT Command:
	1349	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1350	+|=(% style="width: 100px;" %)(((
	1351	+**Command example**
	1352	+)))|=(% style="width: 400px;" %)(((
	1353	+**Function**
	1354	+)))
	1355	+|(% style="width:100px" %)(((
	1356	+AT+RXMODE=1,10
	1357	+)))|(% style="width:400px" %)(((
	1358	+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.
	1359	+)))
	1360	+|(% style="width:100px" %)(((
	1361	+AT+RXMODE=2,500
	1362	+)))|(% style="width:400px" %)(((
	1363	+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
	1364	+)))
	1365	+|(% style="width:100px" %)(((
	1366	+AT+RXMODE=0,0
	1367	+)))|(% style="width:400px" %)(((
	1368	+Disable listening mode. This is the default settings.
	1369	+)))
	1370	+|(% style="width:100px" %)(((
	1371	+
	1372	+)))|(% style="width:400px" %)(((
	1373	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1374	+)))
894	894
895		-Set Baud Rate:
	1376	+(((
	1377	+
896	896
897		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1379	+(% style="color:#037691" %)**Downlink Command:**
	1380	+)))
898	898
	1382	+(((
	1383	+(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
	1384	+)))
899	899
900		-Set UART parity
	1386	+(((
	1387	+
	1388	+)))
901	901
902		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1390	+(((
	1391	+**Example**:
	1392	+)))
903	903
	1394	+(((
	1395	+The RS485-LN is set to AT+RXMODE=2,1000
	1396	+)))
904	904
905		-Set STOPBIT
	1398	+(((
	1399	+There is a two Modbus commands in the RS485 network as below:
	1400	+)))
906	906
907		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1402	+(((
	1403	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1404	+)))
908	908
	1406	+(((
	1407	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1408	+)))
909	909
910		-* Downlink Payload:
	1410	+(((
	1411	+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
911	911
912		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1413	+
	1414	+)))
913	913
914		-Example:
	1416	+(((
	1417	+(% 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" %)​
	1418	+)))
915	915
916		-* A7 01 00 60   same as AT+BAUDR=9600
917		-* A7 01 04 80  same as AT+BAUDR=115200
	1420	+(((
	1421	+
	1422	+)))
918	918
919		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1424	+(((
	1425	+(((
	1426	+(% 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.**
	1427	+)))
	1428	+)))
920	920
921		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
922	922
923	923
924		-==== Control output power duration ====
	1432	+== 3.7 Buttons ==
925	925
926		-User can set the output power duration before each sampling.
927	927
928		-* AT Command:
	1435	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1436	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1437	+|(% 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**
	1438	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1439	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
929	929
930		-Example:
931	931
932		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
	1442	+== 3.8 LEDs ==
933	933
934		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
935	935
	1445	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1446	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1447	+|**PWR**|Always on if there is power
	1448	+|**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.
936	936
937		-* LoRaWAN Downlink Command:
938	938
939		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1451	+= 4. Case Study =
940	940
941		-07 02 aa bb  Same as AT+3V3T=(aa bb)
942	942
	1454	+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]]
943	943
944	944
945	945
946		-1.
947		-11. Buttons
	1458	+= 5. Use AT Command =
948	948
949		-|**Button**|**Feature**
950		-|**RST**|Reboot RS485-BL
951	951
952		-1.
953		-11. +3V3 Output
	1461	+== 5.1 Access AT Command ==
954	954
955		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
956	956
957		-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.
	1464	+(((
	1465	+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.
958	958
	1467	+
	1468	+)))
959	959
960		-The +3V3 output time can be controlled by AT Command.
	1470	+(% 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" %)​
961	961
962		-**AT+3V3T=1000**
963	963
964		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
965	965
	1474	+(((
	1475	+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:
966	966
967		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
	1477	+
	1478	+)))
968	968
	1480	+(% 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" %)​
969	969
970		-1.
971		-11. +5V Output
972	972
973		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
	1483	+(((
	1484	+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/]]
	1485	+)))
974	974
975		-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.
976	976
977	977
978		-The 5V output time can be controlled by AT Command.
	1489	+== 5.2 Common AT Command Sequence ==
979	979
980		-**AT+5VT=1000**
981	981
982		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
	1492	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
983	983
984	984
985		-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.
	1495	+If device has not joined network yet:
986	986
	1497	+* (% style="color:#037691" %)**AT+FDR**
	1498	+* (% style="color:#037691" %)**AT+NJM=0**
	1499	+* (% style="color:#037691" %)**ATZ**
987	987
	1501	+(((
	1502	+
988	988
	1504	+If device already joined network:
989	989
990		-1.
991		-11. LEDs
	1506	+* (% style="color:#037691" %)**AT+NJM=0**
	1507	+* (% style="color:#037691" %)**ATZ**
992	992
993		-|**LEDs**|**Feature**
994		-|**LED1**|Blink when device transmit a packet.
	1509	+
	1510	+)))
995	995
996		-1.
997		-11. Switch Jumper
998	998
999		-|**Switch Jumper**|**Feature**
1000		-|**SW1**|(((
1001		-ISP position: Upgrade firmware via UART
1002	1002
1003		-Flash position: Configure device, check running status.
1004		-)))
1005		-|**SW2**|(((
1006		-5V position: set to compatible with 5v I/O.
	1514	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1007	1007
1008		-3.3v position: set to compatible with 3.3v I/O.,
1009		-)))
1010	1010
1011		-+3.3V: is always ON
	1517	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1012	1012
1013		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1519	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1014	1014
1015		-1. Case Study
	1521	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1016	1016
1017		-User can check this URL for some case studies.
	1523	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1018	1018
1019		-[[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]]
	1525	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1020	1020
	1527	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1021	1021
	1529	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1022	1022
	1531	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1023	1023
1024		-1. Use AT Command
1025		-11. Access AT Command
	1533	+(% 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.
1026	1026
1027		-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.
	1535	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1028	1028
1029		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
1030	1030
	1538	+(% style="color:red" %)**Note:**
1031	1031
1032		-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:
	1540	+(((
	1541	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1542	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1543	+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.
	1544	+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
1033	1033
1034		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
	1546	+
	1547	+)))
1035	1035
	1549	+(% 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" %)​
1036	1036
1037	1037
1038		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1039	1039
	1553	+= 6. FAQ =
1040	1040
1041	1041
1042		-1.
1043		-11. Common AT Command Sequence
1044		-111. Multi-channel ABP mode (Use with SX1301/LG308)
	1556	+== 6.1 How to upgrade the image? ==
1045	1045
1046		-If device has not joined network yet:
1047	1047
1048		-AT+FDR
	1559	+(((
	1560	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1561	+)))
1049	1049
1050		-AT+NJM=0
	1563	+* (((
	1564	+Support new features
	1565	+)))
	1566	+* (((
	1567	+For bug fix
	1568	+)))
	1569	+* (((
	1570	+Change LoRaWAN bands.
	1571	+)))
1051	1051
1052		-ATZ
	1573	+(((
	1574	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1575	+)))
1053	1053
	1577	+(% 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"]]
1054	1054
1055		-If device already joined network:
	1579	+(% title="Click and drag to resize" %)​
1056	1056
1057		-AT+NJM=0
	1581	+(((
	1582	+(% 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]].
1058	1058
1059		-ATZ
	1584	+
	1585	+)))
1060	1060
1061		-1.
1062		-11.
1063		-111. Single-channel ABP mode (Use with LG01/LG02)
	1587	+(((
	1588	+(% 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]].
1064	1064
1065		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1590	+
	1591	+)))
1066	1066
1067		-AT+NJM=0 Set to ABP mode
	1593	+(((
	1594	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1068	1068
1069		-AT+ADR=0 Set the Adaptive Data Rate Off
	1596	+
	1597	+)))
1070	1070
1071		-AT+DR=5  Set Data Rate
	1599	+(((
	1600	+(((
	1601	+(((
	1602	+(% 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.
	1603	+)))
	1604	+)))
	1605	+)))
1072	1072
1073		-AT+TDC=60000  Set transmit interval to 60 seconds
1074	1074
1075		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1608	+(% 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" %)​
1076	1076
1077		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1078	1078
1079		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1611	+(% 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" %)​
1080	1080
1081		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1082	1082
1083		-ATZ          Reset MCU
	1614	+(% 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" %)​
1084	1084
1085		-**Note:**
1086	1086
1087		-1. Make sure the device is set to ABP mode in the IoT Server.
1088		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1089		-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.
1090		-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
	1617	+(% 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:**
1091	1091
1092		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
	1619	+(% 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" %)​
1093	1093
1094	1094
1095		-1. FAQ
1096		-11. How to upgrade the image?
1097	1097
1098		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1623	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1099	1099
1100		-* Support new features
1101		-* For bug fix
1102		-* Change LoRaWAN bands.
1103	1103
1104		-Below shows the hardware connection for how to upload an image to RS485-BL:
	1626	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1105	1105
1106		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1107	1107
1108		-**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]].
1109	1109
1110		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1630	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1111	1111
1112		-**Step3: **Open flashloader; choose the correct COM port to update.
1113	1113
	1633	+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"]].
1114	1114
1115		-|(((
1116		-HOLD PRO then press the RST button, SYS will be ON, then click next
1117		-)))
1118	1118
1119		-|(((
1120		-Board detected
1121		-)))
1122	1122
1123		-|(((
1124		-
1125		-)))
	1637	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1126	1126
1127		-[[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]]
1128	1128
	1640	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1129	1129
	1642	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1130	1130
1131		-[[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]]
1132	1132
1133	1133
1134		-[[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]]
	1646	+== 6.5 Can i use point to point communication for RS485-LN? ==
1135	1135
1136	1136
1137		-1.
1138		-11. How to change the LoRa Frequency Bands/Region?
	1649	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1139	1139
1140		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1141	1141
1142	1142
	1653	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1143	1143
1144		-1.
1145		-11. How many RS485-Slave can RS485-BL connects?
1146	1146
1147		-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]].
	1656	+[[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/]]
1148	1148
1149	1149
1150	1150
	1660	+= 7. Trouble Shooting =
1151	1151
1152		-1. Trouble Shooting
1153		-11. Downlink doesn’t work, how to solve it?
1154	1154
1155		-Please see this link for debug:
	1663	+== 7.1 Downlink doesn't work, how to solve it? ==
1156	1156
1157		-[[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]]
1158	1158
	1666	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1159	1159
1160	1160
1161		-1.
1162		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1163	1163
1164		-It might about the channels mapping. Please see for detail.
	1670	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1165	1165
1166		-[[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]]
1167	1167
	1673	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1168	1168
1169	1169
1170		-1. Order Info
1171	1171
1172		-**Part Number: RS485-BL-XXX**
	1677	+= 8. Order Info =
1173	1173
1174		-**XXX:**
1175	1175
1176		-* **EU433**: frequency bands EU433
1177		-* **EU868**: frequency bands EU868
1178		-* **KR920**: frequency bands KR920
1179		-* **CN470**: frequency bands CN470
1180		-* **AS923**: frequency bands AS923
1181		-* **AU915**: frequency bands AU915
1182		-* **US915**: frequency bands US915
1183		-* **IN865**: frequency bands IN865
1184		-* **RU864**: frequency bands RU864
1185		-* **KZ865: **frequency bands KZ865
	1680	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1186	1186
1187		-1. Packing Info
	1682	+(% style="color:blue" %)**XXX:**
1188	1188
	1684	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1685	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1686	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1687	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1688	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1689	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1690	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1691	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1692	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1693	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
	1694	+
	1695	+
	1696	+= 9.Packing Info =
	1697	+
	1698	+
1189	1189	**Package Includes**:
1190	1190
1191		-* RS485-BL x 1
	1701	+* RS485-LN x 1
1192	1192	* Stick Antenna for LoRa RF part x 1
1193	1193	* Program cable x 1
1194	1194
...	...	@@ -1199,9 +1199,69 @@
1199	1199	* Package Size / pcs : 14.5 x 8 x 5 cm
1200	1200	* Weight / pcs : 170g
1201	1201
1202		-1. Support
1203	1203
1204		-* 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.
1205		-* 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
	1713	+= 10. FCC Caution for RS485LN-US915 =
1206	1206
1207		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1715	+
	1716	+(((
	1717	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1718	+)))
	1719	+
	1720	+(((
	1721	+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.
	1722	+)))
	1723	+
	1724	+(((
	1725	+
	1726	+)))
	1727	+
	1728	+(((
	1729	+(% style="color:red" %)**IMPORTANT NOTE:**
	1730	+)))
	1731	+
	1732	+(((
	1733	+(% 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:
	1734	+)))
	1735	+
	1736	+(((
	1737	+—Reorient or relocate the receiving antenna.
	1738	+)))
	1739	+
	1740	+(((
	1741	+—Increase the separation between the equipment and receiver.
	1742	+)))
	1743	+
	1744	+(((
	1745	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1746	+)))
	1747	+
	1748	+(((
	1749	+—Consult the dealer or an experienced radio/TV technician for help.
	1750	+)))
	1751	+
	1752	+(((
	1753	+
	1754	+)))
	1755	+
	1756	+(((
	1757	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1758	+)))
	1759	+
	1760	+(((
	1761	+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.
	1762	+)))
	1763	+
	1764	+
	1765	+
	1766	+= 11. Support =
	1767	+
	1768	+
	1769	+* (((
	1770	+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.
	1771	+)))
	1772	+* (((
	1773	+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]].
	1774	+
	1775	+
	1776	+
	1777	+)))

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