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

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Details

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

Content

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1		-(% style="text-align:center" %)
2		-[[image:1653266934636-343.png||height="385" width="385"]]
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5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7	7
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9	9	**Table of Contents:**
10	10
	17	+{{toc/}}
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15	15	= 1.Introduction =
16	16
	33	+
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
18	18
19	19	(((
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21	21	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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25	25	RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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29	29	(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
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33	33	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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34	34
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35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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39		-[[image:1653267211009-519.png||height="419" width="724"]]
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	73	+
42	42	== 1.2 Specifications ==
43	43
44	44
45		-**Hardware System:**
	77	+(% style="color:#037691" %)**Hardware System:**
46	46
47	47	* STM32L072CZT6 MCU
48	48	* SX1276/78 Wireless Chip
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50	50	** Idle: 32mA@12v
51	51	** 20dB Transmit: 65mA@12v
52	52
53		-**Interface for Model:**
54	54
	86	+(% style="color:#037691" %)**Interface for Model:**
	87	+
55	55	* RS485
56	56	* Power Input 7~~ 24V DC.
57	57
58		-**LoRa Spec:**
59	59
	92	+(% style="color:#037691" %)**LoRa Spec:**
	93	+
60	60	* Frequency Range:
61	61	** Band 1 (HF): 862 ~~ 1020 Mhz
62	62	** Band 2 (LF): 410 ~~ 528 Mhz
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74	74	* Preamble detection.
75	75	* 127 dB Dynamic Range RSSI.
76	76	* Automatic RF Sense and CAD with ultra-fast AFC.
77		-* Packet engine up to 256 bytes with CRC.
	111	+* Packet engine up to 256 bytes with CRC
78	78
79	79
80	80
81	81	== 1.3 Features ==
82	82
	117	+
83	83	* LoRaWAN Class A & Class C protocol (default Class C)
84		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	119	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
85	85	* AT Commands to change parameters
86	86	* Remote configure parameters via LoRa Downlink
87	87	* Firmware upgradable via program port
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93	93
94	94	== 1.4 Applications ==
95	95
	131	+
96	96	* Smart Buildings & Home Automation
97	97	* Logistics and Supply Chain Management
98	98	* Smart Metering
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100	100	* Smart Cities
101	101	* Smart Factory
102	102
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	140	+
103	103	== 1.5 Firmware Change log ==
104	104
	143	+
105	105	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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	146	+
	147	+
107	107	== 1.6 Hardware Change log ==
108	108
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109	109	(((
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111	111	v1.2: Add External Interrupt Pin.
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113	113	v1.0: Release
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116	116
117	117	= 2. Power ON Device =
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119	119	(((
120	120	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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126	126	Once there is power, the RS485-LN will be on.
127	127	)))
128	128
129		-[[image:1653268091319-405.png]]
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131	131
132	132	= 3. Operation Mode =
133	133
	187	+
134	134	== 3.1 How it works? ==
135	135
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136	136	(((
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137	137	The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
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	199	+
140	140	== 3.2 Example to join LoRaWAN network ==
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142	142	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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144		-[[image:1653268155545-638.png||height="334" width="724"]]
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147	147	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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149	149	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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151		-[[image:1653268227651-549.png||height="592" width="720"]]
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153	153	(((
154		-The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3:
	224	+The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
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158		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	230	+(% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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166		-[[image:1652953462722-299.png]]
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170	170	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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174		-Add APP EUI in the application.
	249	+**Add APP EUI in the application.**
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178		-[[image:image-20220519174512-1.png]]
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180		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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182		-[[image:image-20220519174512-3.png||height="556" width="724"]]
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184		-[[image:image-20220519174512-4.png]]
	259	+(% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
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186	186	You can also choose to create the device manually.
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188		-[[image:1652953542269-423.png||height="710" width="723"]]
	266	+(% aria-label="1652953542269-423.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953542269-423.png||data-widget="image" height="710" width="723"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
189	189
190		-Add APP KEY and DEV EUI
191	191
192		-[[image:1652953553383-907.png||height="514" width="724"]]
193	193
	270	+**Add APP KEY and DEV EUI**
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	273	+
	274	+
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195	195	(((
196		-**Step 2**: Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
	277	+(% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
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197	197	)))
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199		-[[image:1652953568895-172.png||height="232" width="724"]]
	282	+(% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png||data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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	284	+
	285	+
201	201	== 3.3 Configure Commands to read data ==
202	202
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203	203	(((
204	204	(((
205		-There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	291	+(((
	292	+There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
	293	+
	294	+
206	206	)))
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208	208	(((
209		-(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
	299	+(((
	300	+(% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
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212	212
213		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	308	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
214	214
	310	+
215	215	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:
216	216
217		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
218		-|(((
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	314	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	315	+|=(% style="width: 110px;" %)(((
219	219	**AT Commands**
220		-)))|(% style="width:285px" %)(((
	317	+)))|=(% style="width: 190px;" %)(((
221	221	**Description**
222		-)))|(% style="width:347px" %)(((
	319	+)))|=(% style="width: 190px;" %)(((
223	223	**Example**
224	224	)))
225		-|(((
	322	+|(% style="width:110px" %)(((
226	226	AT+BAUDR
227		-)))|(% style="width:285px" %)(((
	324	+)))|(% style="width:190px" %)(((
228	228	Set the baud rate (for RS485 connection). Default Value is: 9600.
229		-)))|(% style="width:347px" %)(((
	326	+)))|(% style="width:190px" %)(((
230	230	(((
231	231	AT+BAUDR=9600
232	232	)))
...	...	@@ -235,11 +235,11 @@
235	235	Options: (1200,2400,4800,14400,19200,115200)
236	236	)))
237	237	)))
238		-|(((
	335	+|(% style="width:110px" %)(((
239	239	AT+PARITY
240		-)))|(% style="width:285px" %)(((
	337	+)))|(% style="width:190px" %)(((
241	241	Set UART parity (for RS485 connection)
242		-)))|(% style="width:347px" %)(((
	339	+)))|(% style="width:190px" %)(((
243	243	(((
244	244	AT+PARITY=0
245	245	)))
...	...	@@ -248,9 +248,9 @@
248	248	Option: 0: no parity, 1: odd parity, 2: even parity
249	249	)))
250	250	)))
251		-|(((
	348	+|(% style="width:110px" %)(((
252	252	AT+STOPBIT
253		-)))|(% style="width:285px" %)(((
	350	+)))|(% style="width:190px" %)(((
254	254	(((
255	255	Set serial stopbit (for RS485 connection)
256	256	)))
...	...	@@ -258,7 +258,7 @@
258	258	(((
259	259
260	260	)))
261		-)))|(% style="width:347px" %)(((
	358	+)))|(% style="width:190px" %)(((
262	262	(((
263	263	AT+STOPBIT=0 for 1bit
264	264	)))
...	...	@@ -272,906 +272,1340 @@
272	272	)))
273	273	)))
274	274
	372	+
	373	+
275	275	=== 3.3.2 Configure sensors ===
276	276
	376	+
277	277	(((
278	278	(((
279		-Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
	379	+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.
	380	+
	381	+
280	280	)))
281	281	)))
282	282
283		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
284		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
285		-|AT+CFGDEV|(% style="width:418px" %)(((
	385	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	386	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	387	+|AT+CFGDEV|(% style="width:110px" %)(((
	388	+(((
286	286	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	390	+)))
287	287
	392	+(((
288	288	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	394	+)))
289	289
	396	+(((
290	290	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
291		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	398	+)))
	399	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
292	292
	401	+
	402	+
293	293	=== 3.3.3 Configure read commands for each sampling ===
294	294
	405	+
295	295	(((
296		-RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
	407	+During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
	408	+
	409	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	410	+
	411	+This section describes how to achieve above goals.
	412	+
	413	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	414	+
	415	+
	416	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	417	+
	418	+
	419	+~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
	420	+
	421	+2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
	422	+
	423	+3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
	424	+
	425	+
	426	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	427	+
	428	+Below are examples for the how above AT Commands works.
	429	+
	430	+
	431	+(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
	432	+
	433	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	434	+|(% style="width:496px" %)(((
	435	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	436	+
	437	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	438	+
	439	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
297	297	)))
298	298
299		-(((
300		-During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
	442	+For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
	443	+
	444	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	445	+
	446	+
	447	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	448	+
	449	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	450	+|(% style="width:510px" %)(((
	451	+**AT+DATACUTx=a,b,c**
	452	+
	453	+* **a: length for the return of AT+COMMAND**
	454	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	455	+* **c: define the position for valid value.  **
301	301	)))
302	302
	458	+**Examples:**
	459	+
	460	+
	461	+* (% style="color:#037691" %)**Grab bytes**
	462	+
	463	+(% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	464	+
	465	+
	466	+
	467	+* (% style="color:#037691" %)**Grab a section**
	468	+
	469	+(% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	470	+
	471	+
	472	+
	473	+* (% style="color:#037691" %)**Grab different sections**
	474	+
	475	+(% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	476	+
	477	+
	478	+
	479	+)))
	480	+
	481	+=== 3.3.4 Compose the uplink payload ===
	482	+
	483	+
303	303	(((
304		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	485	+Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
	486	+
	487	+
305	305	)))
306	306
307	307	(((
308		-This section describes how to achieve above goals.
	491	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	492	+
	493	+
309	309	)))
310	310
311	311	(((
312		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	497	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
313	313	)))
314	314
315	315	(((
316		-**Command from RS485-BL to Sensor:**
	501	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
317	317	)))
318	318
319	319	(((
320		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
	505	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	506	+
	507	+
321	321	)))
322	322
	510	+(% aria-label="1653269759169-150.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653269759169-150.png||data-widget="image" height="513" width="716"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	511	+
	512	+
	513	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
	514	+
	515	+
	516	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	517	+
	518	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	519	+
	520	+
	521	+1. PAYVER: Defined by AT+PAYVER
	522	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	523	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	524	+1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
	525	+
	526	+
	527	+(% 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" %)​
	528	+
	529	+
	530	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	531	+
	532	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	533	+
	534	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	535	+
	536	+DATA3=the rest of Valid value of RETURN10= **30**
	537	+
	538	+
	539	+(% 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:**
	540	+
	541	+
	542	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	543	+
	544	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	545	+
	546	+ * For US915 band, max 11 bytes for each uplink.
	547	+
	548	+ ~* For all other bands: max 51 bytes for each uplink.
	549	+
	550	+(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	551	+
	552	+(% 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)**
	553	+
	554	+
	555	+(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
	556	+
	557	+1 )  When (% style="color:blue" %)**AT+MOD=1**(%%), if the data intercepted by** AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n FFs**.
	558	+
	559	+
	560	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114359-3.png?width=1106&height=297&rev=1.1||alt="image-20220824114359-3.png" height="297" width="1106"]]
	561	+
	562	+
	563	+
	564	+2 )  When (% style="color:blue" %)**AT+MOD=2**(%%), if the data intercepted by **AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n 00s**.
	565	+
	566	+
	567	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114330-2.png?rev=1.1||alt="image-20220824114330-2.png"]]
	568	+
	569	+
	570	+
	571	+Below are the uplink payloads:
	572	+
	573	+
	574	+(% 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" %)​
	575	+
	576	+
	577	+
	578	+=== 3.3.5 Uplink on demand ===
	579	+
	580	+
	581	+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.
	582	+
	583	+(% style="color:blue" %)**Downlink control command:**
	584	+
	585	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	586	+
	587	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	588	+
	589	+
	590	+
	591	+=== 3.3.6 Uplink on Interrupt ===
	592	+
	593	+
	594	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	595	+
	596	+
	597	+(% 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" %)​
	598	+
	599	+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.
	600	+
	601	+
	602	+
	603	+== 3.4 Uplink Payload ==
	604	+
	605	+
	606	+(% 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"]]
	607	+
	608	+(% title="Click and drag to resize" %)​
	609	+
	610	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	611	+
	612	+
	613	+
	614	+== 3.5 Configure RS485-LN via AT or Downlink ==
	615	+
	616	+
323	323	(((
324		-**Handle return from sensors to RS485-BL**:
	618	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
325	325	)))
326	326
327	327	(((
328		-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**
	622	+There are two kinds of Commands:
329	329	)))
330	330
331	331	* (((
332		-**AT+DATACUT**
	626	+(% 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]]
333	333	)))
334	334
	629	+* (((
	630	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	631	+)))
	632	+
335	335	(((
336		-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.
	634	+
337	337	)))
338	338
	637	+
	638	+
	639	+=== 3.5.1 Common Commands ===
	640	+
	641	+
	642	+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]]
	643	+
	644	+
	645	+
	646	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
	647	+
	648	+
	649	+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.
	650	+
	651	+(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]](% title="Click and drag to resize" %)​
	652	+
	653	+The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
	654	+
	655	+
	656	+
	657	+=== 3.5.3 Sensor related commands ===
	658	+
	659	+
	660	+
	661	+
	662	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	663	+
	664	+
	665	+(((
	666	+This command is used to configure the RS485 devices; they won't be used during sampling.
	667	+)))
	668	+
339	339	* (((
340		-**AT+SEARCH**
	670	+(% style="color:#037691" %)**AT Command**
	671	+
	672	+(((
	673	+(% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
341	341	)))
	675	+)))
342	342
343	343	(((
344		-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.
	678	+
345	345	)))
346	346
	681	+* (((
	682	+(% style="color:#037691" %)**Downlink Payload**
	683	+)))
	684	+
347	347	(((
348		-**Define wait timeout:**
	686	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
349	349	)))
350	350
351	351	(((
352		-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
	690	+Where:
353	353	)))
354	354
	693	+* (((
	694	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	695	+)))
	696	+* (((
	697	+NN: The length of RS485 command
	698	+)))
	699	+* (((
	700	+XX XX XX XX: RS485 command total NN bytes
	701	+)))
	702	+* (((
355	355	(((
356		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	704	+YY: How many bytes will be uplink from the return of this RS485 command,
357	357	)))
358	358
359		-**Examples:**
	707	+* (((
	708	+if YY=0, RS485-LN will execute the downlink command without uplink;
	709	+)))
	710	+* (((
	711	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	712	+)))
	713	+* (((
	714	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	715	+)))
	716	+)))
360	360
361		-Below are examples for the how above AT Commands works.
	718	+(((
	719	+
362	362
363		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	721	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	722	+)))
364	364
365		-(% border="1" class="table-bordered" %)
366		-|(((
367		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	724	+(((
	725	+To connect a Modbus Alarm with below commands.
	726	+)))
368	368
369		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	728	+* (((
	729	+The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
	730	+)))
370	370
371		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	732	+* (((
	733	+The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
372	372	)))
373	373
374	374	(((
375		-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.
	737	+
	738	+
	739	+So if user want to use downlink command to control to RS485 Alarm, he can use:
376	376	)))
377	377
378	378	(((
379		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	743	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
380	380	)))
381	381
382	382	(((
383		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	747	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
384	384	)))
385	385
386		-(% border="1" class="table-bordered" %)
387		-|(((
388		-**AT+SEARCHx=aa,xx xx xx xx xx**
	750	+(((
	751	+A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
	752	+)))
389	389
390		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
391		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
392		-
	754	+(((
393	393
394	394	)))
395	395
396		-**Examples:**
	758	+(((
	759	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	760	+)))
397	397
398		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	762	+(((
	763	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	764	+)))
399	399
400		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	766	+(((
	767	+
	768	+)))
401	401
402		-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**
	770	+(((
	771	+(((
	772	+RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
	773	+)))
403	403
404		-[[image:1653269403619-508.png]]
	775	+
	776	+)))
405	405
406		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	778	+(((
	779	+ (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	780	+)))
407	407
408		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
409	409
410		-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**
411	411
412		-[[image:1653269438444-278.png]]
413	413
414		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	785	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
415	415
416		-|(((
417		-**AT+DATACUTx=a,b,c**
418	418
419		-* **a: length for the return of AT+COMMAND**
420		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
421		-* **c: define the position for valid value.  **
	788	+(((
	789	+This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
422	422	)))
423	423
424		-Examples:
	792	+* (((
	793	+(% style="color:#037691" %)**AT Command:**
425	425
426		-* Grab bytes:
	795	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
427	427
428		-[[image:1653269551753-223.png||height="311" width="717"]]
	797	+
	798	+)))
	799	+* (((
	800	+(% style="color:#037691" %)**Downlink Payload:**
	801	+)))
429	429
430		-* Grab a section.
	803	+(((
	804	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	805	+)))
431	431
432		-[[image:1653269568276-930.png||height="325" width="718"]]
	807	+(((
	808	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	809	+)))
433	433
434		-* Grab different sections.
435	435
436		-[[image:1653269593172-426.png||height="303" width="725"]]
	812	+1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)
437	437
438		-(% style="color:red" %)**Note:**
	814	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
439	439
440		-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.
441	441
442		-Example:
	817	+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.
443	443
444		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
445	445
446		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	820	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
447	447
448		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
449	449
450		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
451	451
452		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
453	453
454		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	825	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
455	455
456		-[[image:1653269618463-608.png]]
457	457
458		-=== 3.3.4 Compose the uplink payload ===
	828	+(((
	829	+AT+COMMANDx or AT+DATACUTx
	830	+)))
459	459
460	460	(((
461		-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.**
	833	+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"]].
462	462	)))
463	463
464	464	(((
465		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	837	+
466	466	)))
467	467
	840	+* (((
	841	+(% style="color:#037691" %)**AT Command:**
	842	+)))
	843	+
	844	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
	845	+
	846	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
	847	+
	848	+
	849	+* (((
	850	+(% style="color:#037691" %)**Downlink Payload:**
	851	+)))
	852	+
468	468	(((
469		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	854	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	855	+
	856	+
470	470	)))
471	471
472	472	(((
473		-Final Payload is
	860	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
	861	+
	862	+
474	474	)))
475	475
476	476	(((
477		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	866	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
478	478	)))
479	479
480	480	(((
481		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	870	+Where:
482	482	)))
483	483
484		-[[image:1653269759169-150.png||height="513" width="716"]]
	873	+* (((
	874	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	875	+)))
	876	+* (((
	877	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	878	+)))
	879	+* (((
	880	+LL:  The length of AT+COMMAND or AT+DATACUT command
	881	+)))
	882	+* (((
	883	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	884	+)))
	885	+* (((
	886	+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.
	887	+)))
485	485
486		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	889	+(((
	890	+
487	487
488		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	892	+**Example:**
	893	+)))
489	489
490		-Final Payload is
	895	+(((
	896	+(% 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
	897	+)))
491	491
492		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	899	+(((
	900	+(% 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**
	901	+)))
493	493
494		-1. Battery Info (2 bytes): Battery voltage
495		-1. PAYVER (1 byte): Defined by AT+PAYVER
496		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
497		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
498		-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
	903	+(((
	904	+(% 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**
	905	+)))
499	499
500		-[[image:1653269916228-732.png||height="433" width="711"]]
501	501
502	502
503		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
504	504
505		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	910	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
506	506
507		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
508	508
509		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	913	+(((
	914	+(% 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]].
	915	+)))
510	510
511		-Below are the uplink payloads:
	917	+(((
	918	+This command is valid since v1.3 firmware version
	919	+)))
512	512
513		-[[image:1653270130359-810.png]]
	921	+(((
	922	+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.
	923	+)))
514	514
	925	+(((
	926	+
	927	+)))
515	515
516		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	929	+(((
	930	+**Example:**
	931	+)))
517	517
518		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	933	+* (((
	934	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	935	+)))
	936	+* (((
	937	+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.
	938	+)))
	939	+* (((
	940	+AT+COMMAND2= 01 02 00 40 00 10,1  ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
519	519
520		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	942	+
	943	+)))
521	521
522		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	945	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% title="Click and drag to resize" %)​
523	523
524		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	947	+(% 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" %)​
525	525
526		-=== 3.3.5 Uplink on demand ===
527	527
528		-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.
529	529
530		-Downlink control command:
531	531
532		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	952	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
533	533
534		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
535	535
	955	+(((
	956	+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.
	957	+)))
536	536
	959	+(((
	960	+Default value: 0, range:  0 ~~ 65 seconds
	961	+)))
537	537
538		-1.
539		-11.
540		-111. Uplink on Interrupt
	963	+(((
	964	+* (% style="color:#037691" %)** AT Command:**
541	541
542		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
543	543
544		-AT+INTMOD=0  Disable Interrupt
	967	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	968	+)))
545	545
546		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	970	+(((
	971	+
547	547
548		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	973	+**Example:**
	974	+)))
549	549
550		-AT+INTMOD=3  Interrupt trigger by rising edge.
	976	+(((
	977	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	978	+)))
551	551
	980	+(((
	981	+
	982	+)))
552	552
553		-1.
554		-11. Uplink Payload
	984	+* (((
	985	+(% style="color:#037691" %)** Downlink Payload:**
	986	+)))
555	555
556		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
557		-|Value|(((
558		-Battery(mV)
	988	+(((
	989	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	990	+)))
559	559
560		-&
561		-
562		-Interrupt _Flag
563		-)))|(((
564		-PAYLOAD_VER
565		-
	992	+(((
566	566
567		-)))|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.
568	568
569		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	995	+**Example:**
	996	+)))
570	570
	998	+(((
	999	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	1000	+)))
571	571
572		-function Decoder(bytes, port) {
573	573
574		-~/~/Payload Formats of RS485-BL Deceive
575	575
576		-return {
577	577
578		- ~/~/Battery,units:V
	1005	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
579	579
580		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
581	581
582		- ~/~/GPIO_EXTI
	1008	+(((
	1009	+Define to use one uplink or multiple uplinks for the sampling.
	1010	+)))
583	583
584		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	1012	+(((
	1013	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
585	585
586		- ~/~/payload of version
	1015	+
	1016	+)))
587	587
588		- Pay_ver:bytes[2],
	1018	+(((
	1019	+* (% style="color:#037691" %)** AT Command:**
589	589
590		- };
591	591
592		- }
	1022	+(% style="color:#4472c4" %)** AT+DATAUP=0**
593	593
	1024	+(% style="color:#4472c4" %)** AT+DATAUP=1**
594	594
	1026	+
	1027	+)))
595	595
	1029	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
596	596
	1031	+Each uplink is sent to the server at 20-second intervals when segmented.
597	597
598	598
	1034	+* (((
	1035	+(% style="color:#037691" %)** Downlink Payload:**
	1036	+)))
599	599
600		-TTN V3 uplink screen shot.
	1038	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
601	601
602		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1040	+(% 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.
603	603
604		-1.
605		-11. Configure RS485-BL via AT or Downlink
606	606
607		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	1043	+* (((
	1044	+(% style="color:#037691" %)** AT Command:**
	1045	+)))
608	608
609		-There are two kinds of Commands:
	1047	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
610	610
611		-* **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
612	612
613		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	1050	+* (((
	1051	+(% style="color:#037691" %)** Downlink Payload:**
	1052	+)))
614	614
615		-1.
616		-11.
617		-111. Common Commands:
	1054	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
618	618
619		-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]]
	1056	+Each uplink is sent to the server at 20-second intervals when segmented.
620	620
621	621
622		-1.
623		-11.
624		-111. Sensor related commands:
625	625
626		-==== Choose Device Type (RS485 or TTL) ====
627	627
628		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	1061	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
629	629
630		-* AT Command
631	631
632		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	1064	+(((
	1065	+Ask device to send an uplink immediately.
	1066	+)))
633	633
634		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	1068	+* (((
	1069	+(% style="color:#037691" %)** AT Command:**
	1070	+)))
635	635
	1072	+(((
	1073	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1074	+)))
636	636
637		-* Downlink Payload
	1076	+(((
	1077	+
	1078	+)))
638	638
639		-**0A aa**     à same as AT+MOD=aa
	1080	+* (((
	1081	+(% style="color:#037691" %)** Downlink Payload:**
	1082	+)))
640	640
	1084	+(((
	1085	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1086	+)))
641	641
642	642
643		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
644	644
645		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
646	646
647		-* AT Command
	1091	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
648	648
649		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
650	650
651		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1094	+(((
	1095	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
652	652
	1097	+
	1098	+)))
653	653
	1100	+* (((
	1101	+(% style="color:#037691" %)** AT Command:**
	1102	+)))
654	654
655		-* Downlink Payload
	1104	+(((
	1105	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1106	+)))
656	656
657		-Format: A8 MM NN XX XX XX XX YY
	1108	+(((
	1109	+
658	658
659		-Where:
	1111	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1112	+)))
660	660
661		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
662		-* NN: The length of RS485 command
663		-* XX XX XX XX: RS485 command total NN bytes
664		-* 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
	1114	+(((
	1115	+Example screen shot after clear all RS485 commands.
	1116	+)))
665	665
666		-**Example 1:**
	1118	+(((
	1119	+
	1120	+)))
667	667
668		-To connect a Modbus Alarm with below commands.
	1122	+(((
	1123	+The uplink screen shot is:
	1124	+)))
669	669
670		-* 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.
	1126	+(% 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" %)​
671	671
672		-* 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.
673	673
674		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	1129	+* (((
	1130	+(% style="color:#037691" %)** Downlink Payload:**
	1131	+)))
675	675
676		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1133	+(((
	1134	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1135	+)))
677	677
678		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
679	679
680		-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.
681	681
682	682
683		-**Example 2:**
	1140	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
684	684
685		-Check TTL Sensor return:
686	686
687		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1143	+(((
	1144	+Set the Rs485 serial communication parameters:
688	688
	1146	+
	1147	+)))
689	689
	1149	+* (((
	1150	+(% style="color:#037691" %)** AT Command:**
690	690
691	691
692		-==== Set Payload version ====
	1153	+
	1154	+)))
693	693
694		-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.
	1156	+(((
	1157	+* Set Baud Rate
	1158	+)))
695	695
696		-* AT Command:
	1160	+(% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
697	697
698		-AT+PAYVER: Set PAYVER field = 1
699	699
	1163	+(((
	1164	+* Set UART Parity
	1165	+)))
700	700
701		-* Downlink Payload:
	1167	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
702	702
703		-0xAE 01   à Set PAYVER field =  0x01
704	704
705		-0xAE 0F   à Set PAYVER field =  0x0F
	1170	+(((
	1171	+* Set STOPBIT
	1172	+)))
706	706
	1174	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
707	707
708		-==== Set RS485 Sampling Commands ====
709	709
710		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
711	711
712		-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]].
	1178	+* (((
	1179	+(% style="color:#037691" %)** Downlink Payload:**
	1180	+)))
713	713
	1182	+(((
	1183	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1184	+)))
714	714
715		-* AT Command:
	1186	+(((
	1187	+
716	716
717		-AT+COMMANDx: Configure RS485 read command to sensor.
	1189	+**Example:**
	1190	+)))
718	718
719		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1192	+* (((
	1193	+A7 01 00 60  same as AT+BAUDR=9600
	1194	+)))
	1195	+* (((
	1196	+A7 01 04 80  same as AT+BAUDR=115200
	1197	+)))
720	720
721		-AT+SEARCHx: Configure search command
	1199	+(((
	1200	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1201	+)))
722	722
	1203	+(((
	1204	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1205	+)))
723	723
724		-* Downlink Payload:
725	725
726		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
727	727
728		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
729	729
730		-Format: AF MM NN LL XX XX XX XX YY
731	731
732		-Where:
	1211	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
733	733
734		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
735		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
736		-* LL: The length of AT+COMMAND or AT+DATACUT command
737		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
738		-* 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.
	1213	+(((
	1214	+
	1215	+)))
739	739
740		-Example:
	1217	+* (((
	1218	+(% style="color:#037691" %)** AT Command:**
	1219	+)))
741	741
742		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
	1221	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
743	743
744		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	1223	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
745	745
746		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
747	747
748	748
749		-0xAB downlink command can be used for set AT+SEARCHx
750	750
751		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	1228	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
752	752
753		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
754		-* 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
755	755
756		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	1231	+* (((
	1232	+(% style="color:#037691" %)** AT Command:**
	1233	+)))
757	757
	1235	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
758	758
759		-==== Fast command to handle MODBUS device ====
	1237	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
760	760
761		-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]].
762	762
763		-This command is valid since v1.3 firmware version
764	764
765	765
766		-AT+MBFUN has only two value:
	1242	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
767	767
768		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
769	769
770		-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.
	1245	+* (((
	1246	+(% style="color:#037691" %)** AT Command:**
	1247	+)))
771	771
772		-* AT+MBFUN=0: Disable Modbus fast reading.
	1249	+(% 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)
773	773
774		-Example:
	1251	+(% 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.
775	775
776		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
777		-* 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.
778		-* 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.
779	779
780		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
781	781
782	782
783		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1256	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
784	784
785	785
786		-* Downlink Commands:
	1259	+* (((
	1260	+(% style="color:#037691" %)** AT Command:**
	1261	+)))
787	787
788		-A9 aa -à Same as AT+MBFUN=aa
	1263	+ (% 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)
789	789
	1265	+ (% 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.
790	790
791		-==== RS485 command timeout ====
792	792
793		-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.
	1268	+* (((
	1269	+(% style="color:#037691" %)** Downlink Payload:**
	1270	+)))
794	794
795		-Default value: 0, range:  0 ~~ 5 seconds
	1272	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
796	796
797	797
798		-* AT Command:
799	799
800		-AT+CMDDLaa=hex(bb cc)
801	801
802		-Example:
	1277	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
803	803
804		-**AT+CMDDL1=1000** to send the open time to 1000ms
805	805
	1280	+* (((
	1281	+(% style="color:#037691" %)** AT Command:**
	1282	+)))
806	806
807		-* Downlink Payload:
	1284	+(% 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.
808	808
809		-0x AA aa bb cc
810	810
811		-Same as: AT+CMDDLaa=hex(bb cc)
	1287	+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.
812	812
813		- Example:
814	814
815		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
	1290	+[[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"]]
816	816
817	817
818		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
819	819
820		-Define to use one uplink or multiple uplinks for the sampling.
	1294	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
821	821
822		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
823	823
824		-* AT Command:
	1297	+[[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"]]
825	825
826		-AT+DATAUP=0
827	827
828		-AT+DATAUP=1
	1300	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
829	829
830	830
831		-* Downlink Payload:
832	832
833		-0xAD 00   à Same as AT+DATAUP=0
834	834
835		-0xAD 01   à Same as AT+DATAUP=1
	1305	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
836	836
837	837
838		-==== Manually trigger an Uplink ====
	1308	+(((
	1309	+* (% style="color:#037691" %)**Downlink Payload:**
839	839
840		-Ask device to send an uplink immediately.
841	841
842		-* Downlink Payload:
	1312	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1313	+)))
843	843
844		-0x08 FF, RS485-BL will immediately send an uplink.
845	845
	1316	+Example：
846	846
847		-==== Clear RS485 Command ====
848	848
849		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	1319	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
850	850
851	851
852		-* AT Command:
853	853
854		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
855	855
856		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1324	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
857	857
858		-Example screen shot after clear all RS485 commands.
859	859
	1327	+* (((
	1328	+(% style="color:#037691" %)** AT Command:**
	1329	+)))
860	860
	1331	+(% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
861	861
862		-The uplink screen shot is:
	1333	+(% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
863	863
864		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1335	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/ Disable this mode (default)
865	865
866	866
867		-* Downlink Payload:
	1338	+* (((
	1339	+(% style="color:#037691" %)**Downlink Payload:**
	1340	+)))
868	868
869		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1342	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
870	870
	1344	+[[image:image-20220824144240-1.png]]
871	871
872		-==== Set Serial Communication Parameters ====
873	873
874		-Set the Rs485 serial communication parameters:
875	875
876		-* AT Command:
	1348	+== 3.6 Listening mode for RS485 network ==
877	877
878		-Set Baud Rate:
879	879
880		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1351	+(((
	1352	+This feature support since firmware v1.4
	1353	+)))
881	881
	1355	+(((
	1356	+RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
882	882
883		-Set UART parity
	1358	+
	1359	+)))
884	884
885		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1361	+(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
886	886
	1363	+(((
	1364	+To enable the listening mode, use can run the command AT+RXMODE.
	1365	+)))
887	887
888		-Set STOPBIT
	1367	+(((
	1368	+
	1369	+)))
889	889
890		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1371	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1372	+|=(% style="width: 100px;" %)(((
	1373	+**Command example**
	1374	+)))|=(% style="width: 400px;" %)(((
	1375	+**Function**
	1376	+)))
	1377	+|(% style="width:100px" %)(((
	1378	+AT+RXMODE=1,10
	1379	+)))|(% style="width:400px" %)(((
	1380	+Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
	1381	+)))
	1382	+|(% style="width:100px" %)(((
	1383	+AT+RXMODE=2,500
	1384	+)))|(% style="width:400px" %)(((
	1385	+Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
	1386	+)))
	1387	+|(% style="width:100px" %)(((
	1388	+AT+RXMODE=0,0
	1389	+)))|(% style="width:400px" %)(((
	1390	+Disable listening mode. This is the default settings.
	1391	+)))
	1392	+|(% style="width:100px" %)(((
	1393	+
	1394	+)))|(% style="width:400px" %)(((
	1395	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1396	+)))
891	891
	1398	+(((
	1399	+(% style="color:#037691" %)** Downlink Command:**
	1400	+)))
892	892
893		-* Downlink Payload:
	1402	+(((
	1403	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
	1404	+)))
894	894
895		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1406	+(((
	1407	+
	1408	+)))
896	896
897		-Example:
	1410	+(((
	1411	+**Example**:
	1412	+)))
898	898
899		-* A7 01 00 60   same as AT+BAUDR=9600
900		-* A7 01 04 80  same as AT+BAUDR=115200
	1414	+(((
	1415	+The RS485-LN is set to AT+RXMODE=2,1000
	1416	+)))
901	901
902		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1418	+(((
	1419	+There is a two Modbus commands in the RS485 network as below:
	1420	+)))
903	903
904		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1422	+(((
	1423	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1424	+)))
905	905
	1426	+(((
	1427	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1428	+)))
906	906
907		-==== Control output power duration ====
	1430	+(((
	1431	+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
	1432	+)))
908	908
909		-User can set the output power duration before each sampling.
	1434	+(((
	1435	+(% 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" %)​
	1436	+)))
910	910
911		-* AT Command:
	1438	+(((
	1439	+
	1440	+)))
912	912
913		-Example:
	1442	+(((
	1443	+(((
	1444	+(% 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.**
	1445	+)))
	1446	+)))
914	914
915		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
916	916
917		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
918	918
	1450	+== 3.7 Buttons ==
919	919
920		-* LoRaWAN Downlink Command:
921	921
922		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1453	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1454	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1455	+|(% 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**
	1456	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1457	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
923	923
924		-07 02 aa bb  Same as AT+3V3T=(aa bb)
	1459	+== 3.8 LEDs ==
925	925
926	926
	1462	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1463	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1464	+|**PWR**|Always on if there is power
	1465	+|**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.
927	927
	1467	+= 4. Case Study =
928	928
929		-1.
930		-11. Buttons
931	931
932		-|**Button**|**Feature**
933		-|**RST**|Reboot RS485-BL
	1470	+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]]
934	934
935		-1.
936		-11. +3V3 Output
937	937
938		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
939	939
940		-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.
	1474	+= 5. Use AT Command =
941	941
942	942
943		-The +3V3 output time can be controlled by AT Command.
	1477	+== 5.1 Access AT Command ==
944	944
945		-**AT+3V3T=1000**
946	946
947		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1480	+(((
	1481	+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.
	1482	+)))
948	948
	1484	+(% 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" %)​
949	949
950		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
951	951
	1487	+(((
	1488	+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:
	1489	+)))
952	952
953		-1.
954		-11. +5V Output
	1491	+(% 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" %)​
955	955
956		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
957	957
958		-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.
	1494	+(((
	1495	+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/]]
	1496	+)))
959	959
960	960
961		-The 5V output time can be controlled by AT Command.
962	962
963		-**AT+5VT=1000**
	1500	+== 5.2 Common AT Command Sequence ==
964	964
965		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
966	966
	1503	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
967	967
968		-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.
969	969
	1506	+If device has not joined network yet:
970	970
	1508	+* (% style="color:#037691" %)**AT+FDR**
	1509	+* (% style="color:#037691" %)**AT+NJM=0**
	1510	+* (% style="color:#037691" %)**ATZ**
971	971
	1512	+(((
	1513	+
972	972
973		-1.
974		-11. LEDs
	1515	+If device already joined network:
975	975
976		-|**LEDs**|**Feature**
977		-|**LED1**|Blink when device transmit a packet.
	1517	+* (% style="color:#037691" %)**AT+NJM=0**
	1518	+* (% style="color:#037691" %)**ATZ**
978	978
979		-1.
980		-11. Switch Jumper
	1520	+
	1521	+)))
981	981
982		-|**Switch Jumper**|**Feature**
983		-|**SW1**|(((
984		-ISP position: Upgrade firmware via UART
985	985
986		-Flash position: Configure device, check running status.
987		-)))
988		-|**SW2**|(((
989		-5V position: set to compatible with 5v I/O.
990	990
991		-3.3v position: set to compatible with 3.3v I/O.,
992		-)))
	1525	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
993	993
994		-+3.3V: is always ON
995	995
996		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1528	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
997	997
998		-1. Case Study
	1530	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
999	999
1000		-User can check this URL for some case studies.
	1532	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1001	1001
1002		-[[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]]
	1534	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1003	1003
	1536	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1004	1004
	1538	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1005	1005
	1540	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1006	1006
1007		-1. Use AT Command
1008		-11. Access AT Command
	1542	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1009	1009
1010		-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.
	1544	+(% 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.
1011	1011
1012		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1546	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1013	1013
1014	1014
1015		-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:
	1549	+(% style="color:red" %)**Note:**
1016	1016
1017		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
	1551	+(((
	1552	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1553	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1554	+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.
	1555	+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
1018	1018
	1557	+
	1558	+)))
1019	1019
	1560	+(% 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" %)​
1020	1020
1021		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1022	1022
1023	1023
	1564	+= 6. FAQ =
1024	1024
1025		-1.
1026		-11. Common AT Command Sequence
1027		-111. Multi-channel ABP mode (Use with SX1301/LG308)
1028	1028
1029		-If device has not joined network yet:
	1567	+== 6.1 How to upgrade the image? ==
1030	1030
1031		-AT+FDR
1032	1032
1033		-AT+NJM=0
	1570	+(((
	1571	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1572	+)))
1034	1034
1035		-ATZ
	1574	+* (((
	1575	+Support new features
	1576	+)))
	1577	+* (((
	1578	+For bug fix
	1579	+)))
	1580	+* (((
	1581	+Change LoRaWAN bands.
	1582	+)))
1036	1036
	1584	+(((
	1585	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1586	+)))
1037	1037
1038		-If device already joined network:
	1588	+(% 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"]]
1039	1039
1040		-AT+NJM=0
	1590	+(% title="Click and drag to resize" %)​
1041	1041
1042		-ATZ
	1592	+(((
	1593	+(% 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]].
	1594	+)))
1043	1043
1044		-1.
1045		-11.
1046		-111. Single-channel ABP mode (Use with LG01/LG02)
	1596	+(((
	1597	+(% 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]].
	1598	+)))
1047	1047
1048		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1600	+(((
	1601	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
	1602	+)))
1049	1049
1050		-AT+NJM=0 Set to ABP mode
	1604	+(((
	1605	+(((
	1606	+(((
	1607	+(% 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.
	1608	+)))
	1609	+)))
	1610	+)))
1051	1051
1052		-AT+ADR=0 Set the Adaptive Data Rate Off
1053	1053
1054		-AT+DR=5  Set Data Rate
	1613	+(% 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" %)​
1055	1055
1056		-AT+TDC=60000  Set transmit interval to 60 seconds
1057	1057
1058		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1616	+(% 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" %)​
1059	1059
1060		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1061	1061
1062		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1619	+(% 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" %)​
1063	1063
1064		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1065	1065
1066		-ATZ          Reset MCU
	1622	+(% 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:**
1067	1067
1068		-**Note:**
	1624	+(% 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" %)​
1069	1069
1070		-1. Make sure the device is set to ABP mode in the IoT Server.
1071		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1072		-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.
1073		-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
1074	1074
1075		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1076	1076
	1628	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1077	1077
1078		-1. FAQ
1079		-11. How to upgrade the image?
1080	1080
1081		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1631	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1082	1082
1083		-* Support new features
1084		-* For bug fix
1085		-* Change LoRaWAN bands.
1086	1086
1087		-Below shows the hardware connection for how to upload an image to RS485-BL:
1088	1088
1089		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1635	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1090	1090
1091		-**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]].
1092	1092
1093		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1638	+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"]].
1094	1094
1095		-**Step3: **Open flashloader; choose the correct COM port to update.
1096	1096
1097	1097
1098		-|(((
1099		-HOLD PRO then press the RST button, SYS will be ON, then click next
1100		-)))
	1642	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1101	1101
1102		-|(((
1103		-Board detected
1104		-)))
1105	1105
1106		-|(((
1107		-
1108		-)))
	1645	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1109	1109
1110		-[[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]]
	1647	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1111	1111
1112	1112
1113	1113
1114		-[[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]]
	1651	+== 6.5 Can i use point to point communication for RS485-LN? ==
1115	1115
1116	1116
1117		-[[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]]
	1654	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1118	1118
1119	1119
1120		-1.
1121		-11. How to change the LoRa Frequency Bands/Region?
1122	1122
1123		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
	1658	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1124	1124
1125	1125
	1661	+[[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/]]
1126	1126
1127		-1.
1128		-11. How many RS485-Slave can RS485-BL connects?
1129	1129
1130		-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]].
1131	1131
	1665	+= 7. Trouble Shooting =
1132	1132
1133	1133
	1668	+== 7.1 Downlink doesn't work, how to solve it? ==
1134	1134
1135		-1. Trouble Shooting
1136		-11. Downlink doesn’t work, how to solve it?
1137	1137
1138		-Please see this link for debug:
	1671	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1139	1139
1140		-[[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]]
1141	1141
1142	1142
	1675	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1143	1143
1144		-1.
1145		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1146	1146
1147		-It might about the channels mapping. Please see for detail.
	1678	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1148	1148
1149		-[[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]]
1150	1150
1151	1151
	1682	+= 8. Order Info =
1152	1152
1153		-1. Order Info
1154	1154
1155		-**Part Number: RS485-BL-XXX**
	1685	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1156	1156
1157		-**XXX:**
	1687	+(% style="color:blue" %)**XXX:**
1158	1158
1159		-* **EU433**: frequency bands EU433
1160		-* **EU868**: frequency bands EU868
1161		-* **KR920**: frequency bands KR920
1162		-* **CN470**: frequency bands CN470
1163		-* **AS923**: frequency bands AS923
1164		-* **AU915**: frequency bands AU915
1165		-* **US915**: frequency bands US915
1166		-* **IN865**: frequency bands IN865
1167		-* **RU864**: frequency bands RU864
1168		-* **KZ865: **frequency bands KZ865
	1689	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1690	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1691	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1692	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1693	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1694	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1695	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1696	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1697	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1698	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1169	1169
1170		-1. Packing Info
	1700	+= 9.Packing Info =
1171	1171
	1702	+
1172	1172	**Package Includes**:
1173	1173
1174		-* RS485-BL x 1
	1705	+* RS485-LN x 1
1175	1175	* Stick Antenna for LoRa RF part x 1
1176	1176	* Program cable x 1
1177	1177
...	...	@@ -1182,9 +1182,68 @@
1182	1182	* Package Size / pcs : 14.5 x 8 x 5 cm
1183	1183	* Weight / pcs : 170g
1184	1184
1185		-1. Support
	1716	+= 10. FCC Caution for RS485LN-US915 =
1186	1186
1187		-* 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.
1188		-* 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
1189	1189
1190		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1719	+(((
	1720	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1721	+)))
	1722	+
	1723	+(((
	1724	+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.
	1725	+)))
	1726	+
	1727	+(((
	1728	+
	1729	+)))
	1730	+
	1731	+(((
	1732	+(% style="color:red" %)**IMPORTANT NOTE:**
	1733	+)))
	1734	+
	1735	+(((
	1736	+(% 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:
	1737	+)))
	1738	+
	1739	+(((
	1740	+—Reorient or relocate the receiving antenna.
	1741	+)))
	1742	+
	1743	+(((
	1744	+—Increase the separation between the equipment and receiver.
	1745	+)))
	1746	+
	1747	+(((
	1748	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1749	+)))
	1750	+
	1751	+(((
	1752	+—Consult the dealer or an experienced radio/TV technician for help.
	1753	+)))
	1754	+
	1755	+(((
	1756	+
	1757	+)))
	1758	+
	1759	+(((
	1760	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1761	+)))
	1762	+
	1763	+(((
	1764	+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.
	1765	+)))
	1766	+
	1767	+
	1768	+
	1769	+= 11. Support =
	1770	+
	1771	+
	1772	+* (((
	1773	+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.
	1774	+)))
	1775	+* (((
	1776	+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]].
	1777	+
	1778	+
	1779	+
	1780	+)))

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