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	(((
20	20	(((
21		-The Dragino RS485-LN is a RS485 to LoRaWAN Converter. It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
	38	+(((
	39	+
	40	+
	41	+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.
22	22	)))
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24	24	(((
25		-RS485-LN allows user to 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.
	46	+(((
	47	+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.
26	26	)))
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27	27
28	28	(((
29		-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.
	52	+(((
	53	+(% 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.
30	30	)))
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31	31
32	32	(((
33		-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.
	58	+(((
	59	+(% 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.
34	34	)))
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	63	+(% 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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35	35	)))
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37		-[[image:1653267211009-519.png||height="419" width="724"]]
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	73	+
39	39	== 1.2 Specifications ==
40	40
41		-**Hardware System:**
42	42
	77	+(% style="color:#037691" %)**Hardware System:**
	78	+
43	43	* STM32L072CZT6 MCU
44	44	* SX1276/78 Wireless Chip
45	45	* Power Consumption (exclude RS485 device):
46	46	** Idle: 32mA@12v
47		-
48		-*
49	49	** 20dB Transmit: 65mA@12v
50	50
51		-**Interface for Model:**
52	52
	86	+(% style="color:#037691" %)**Interface for Model:**
	87	+
53	53	* RS485
54	54	* Power Input 7~~ 24V DC.
55	55
56		-**LoRa Spec:**
57	57
	92	+(% style="color:#037691" %)**LoRa Spec:**
	93	+
58	58	* Frequency Range:
59	59	** Band 1 (HF): 862 ~~ 1020 Mhz
60	60	** Band 2 (LF): 410 ~~ 528 Mhz
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72	72	* Preamble detection.
73	73	* 127 dB Dynamic Range RSSI.
74	74	* Automatic RF Sense and CAD with ultra-fast AFC.
75		-* Packet engine up to 256 bytes with CRC.
	111	+* Packet engine up to 256 bytes with CRC
76	76
	113	+
	114	+
77	77	== 1.3 Features ==
78	78
	117	+
79	79	* LoRaWAN Class A & Class C protocol (default Class C)
80		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	119	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
81	81	* AT Commands to change parameters
82	82	* Remote configure parameters via LoRa Downlink
83	83	* Firmware upgradable via program port
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85	85	* Support Modbus protocol
86	86	* Support Interrupt uplink (Since hardware version v1.2)
87	87
	127	+
	128	+
88	88	== 1.4 Applications ==
89	89
	131	+
90	90	* Smart Buildings & Home Automation
91	91	* Logistics and Supply Chain Management
92	92	* Smart Metering
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94	94	* Smart Cities
95	95	* Smart Factory
96	96
	139	+
	140	+
97	97	== 1.5 Firmware Change log ==
98	98
	143	+
99	99	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
100	100
	146	+
	147	+
101	101	== 1.6 Hardware Change log ==
102	102
	150	+
103	103	(((
104	104	(((
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105	105	v1.2: Add External Interrupt Pin.
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107	107	v1.0: Release
108	108	)))
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109	109	)))
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110	110
111	111	= 2. Power ON Device =
112	112
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113	113	(((
114	114	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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120	120	Once there is power, the RS485-LN will be on.
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122	122
123		-[[image:1653268091319-405.png]]
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125	125
126	126	= 3. Operation Mode =
127	127
	187	+
128	128	== 3.1 How it works? ==
129	129
	190	+
130	130	(((
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131	131	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	+
134	134	== 3.2 Example to join LoRaWAN network ==
135	135
	202	+
136	136	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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138		-[[image:1653268155545-638.png||height="334" width="724"]]
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140	140	(((
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141	141	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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142	142
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143	143	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
144	144
145		-[[image:1653268227651-549.png||height="592" width="720"]]
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147	147	(((
148		-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:
	225	+
	226	+
149	149	)))
150	150
151	151	(((
152		-**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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160		-[[image:1652953462722-299.png]]
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161	161
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162	162	(((
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164	164	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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167	167	(((
168		-Add APP EUI in the application.
	249	+**Add APP EUI in the application.**
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172		-[[image:image-20220519174512-1.png]]
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174		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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176		-[[image:image-20220519174512-3.png||height="556" width="724"]]
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178		-[[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"]]
179	179
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	263	+
180	180	You can also choose to create the device manually.
181	181
182		-[[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" %)​
183	183
184		-Add APP KEY and DEV EUI
185	185
186		-[[image:1652953553383-907.png||height="514" width="724"]]
187	187
	270	+**Add APP KEY and DEV EUI**
188	188
	272	+(% aria-label="1652953553383-907.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953553383-907.png||data-widget="image" height="514" 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" %)​
	273	+
	274	+
	275	+
189	189	(((
190		-**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.
	278	+
	279	+
191	191	)))
192	192
193		-[[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" %)​
194	194
	284	+
	285	+
195	195	== 3.3 Configure Commands to read data ==
196	196
	288	+
197	197	(((
198	198	(((
199		-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	+
200	200	)))
	296	+)))
201	201
202	202	(((
203		-(% 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**
204	204	)))
	302	+
	303	+
	304	+
205	205	)))
	306	+)))
206	206
207		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	308	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
208	208
	310	+
209	209	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:
210	210
211		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
212		-|(((
	313	+
	314	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	315	+|=(% style="width: 110px;" %)(((
213	213	**AT Commands**
214		-)))|(% style="width:285px" %)(((
	317	+)))|=(% style="width: 190px;" %)(((
215	215	**Description**
216		-)))|(% style="width:347px" %)(((
	319	+)))|=(% style="width: 190px;" %)(((
217	217	**Example**
218	218	)))
219		-|(((
	322	+|(% style="width:110px" %)(((
220	220	AT+BAUDR
221		-)))|(% style="width:285px" %)(((
	324	+)))|(% style="width:190px" %)(((
222	222	Set the baud rate (for RS485 connection). Default Value is: 9600.
223		-)))|(% style="width:347px" %)(((
	326	+)))|(% style="width:190px" %)(((
224	224	(((
225	225	AT+BAUDR=9600
226	226	)))
...	...	@@ -229,11 +229,11 @@
229	229	Options: (1200,2400,4800,14400,19200,115200)
230	230	)))
231	231	)))
232		-|(((
	335	+|(% style="width:110px" %)(((
233	233	AT+PARITY
234		-)))|(% style="width:285px" %)(((
	337	+)))|(% style="width:190px" %)(((
235	235	Set UART parity (for RS485 connection)
236		-)))|(% style="width:347px" %)(((
	339	+)))|(% style="width:190px" %)(((
237	237	(((
238	238	AT+PARITY=0
239	239	)))
...	...	@@ -242,9 +242,9 @@
242	242	Option: 0: no parity, 1: odd parity, 2: even parity
243	243	)))
244	244	)))
245		-|(((
	348	+|(% style="width:110px" %)(((
246	246	AT+STOPBIT
247		-)))|(% style="width:285px" %)(((
	350	+)))|(% style="width:190px" %)(((
248	248	(((
249	249	Set serial stopbit (for RS485 connection)
250	250	)))
...	...	@@ -252,7 +252,7 @@
252	252	(((
253	253
254	254	)))
255		-)))|(% style="width:347px" %)(((
	358	+)))|(% style="width:190px" %)(((
256	256	(((
257	257	AT+STOPBIT=0 for 1bit
258	258	)))
...	...	@@ -266,906 +266,1340 @@
266	266	)))
267	267	)))
268	268
	372	+
	373	+
269	269	=== 3.3.2 Configure sensors ===
270	270
	376	+
271	271	(((
272	272	(((
273		-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	+
274	274	)))
275	275	)))
276	276
277		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
278		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
279		-|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	+(((
280	280	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	390	+)))
281	281
	392	+(((
282	282	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	394	+)))
283	283
	396	+(((
284	284	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
285		-)))|(% 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
286	286
	401	+
	402	+
287	287	=== 3.3.3 Configure read commands for each sampling ===
288	288
	405	+
289	289	(((
290		-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**
291	291	)))
292	292
293		-(((
294		-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.  **
295	295	)))
296	296
	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	+
297	297	(((
298		-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	+
299	299	)))
300	300
301	301	(((
302		-This section describes how to achieve above goals.
	491	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	492	+
	493	+
303	303	)))
304	304
305	305	(((
306		-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**.
307	307	)))
308	308
309	309	(((
310		-**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**
311	311	)))
312	312
313	313	(((
314		-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	+
315	315	)))
316	316
	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	+
317	317	(((
318		-**Handle return from sensors to RS485-BL**:
	618	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
319	319	)))
320	320
321	321	(((
322		-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:
323	323	)))
324	324
325	325	* (((
326		-**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]]
327	327	)))
328	328
	629	+* (((
	630	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	631	+)))
	632	+
329	329	(((
330		-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	+
331	331	)))
332	332
	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	+
333	333	* (((
334		-**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
335	335	)))
	675	+)))
336	336
337	337	(((
338		-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	+
339	339	)))
340	340
	681	+* (((
	682	+(% style="color:#037691" %)**Downlink Payload**
	683	+)))
	684	+
341	341	(((
342		-**Define wait timeout:**
	686	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
343	343	)))
344	344
345	345	(((
346		-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:
347	347	)))
348	348
	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	+* (((
349	349	(((
350		-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,
351	351	)))
352	352
353		-**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	+)))
354	354
355		-Below are examples for the how above AT Commands works.
	718	+(((
	719	+
356	356
357		-**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	+)))
358	358
359		-(% border="1" class="table-bordered" %)
360		-|(((
361		-**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	+)))
362	362
363		-**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	+)))
364	364
365		-**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.
366	366	)))
367	367
368	368	(((
369		-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:
370	370	)))
371	371
372	372	(((
373		-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
374	374	)))
375	375
376	376	(((
377		-**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
378	378	)))
379	379
380		-(% border="1" class="table-bordered" %)
381		-|(((
382		-**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	+)))
383	383
384		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
385		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
386		-
	754	+(((
387	387
388	388	)))
389	389
390		-**Examples:**
	758	+(((
	759	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	760	+)))
391	391
392		-~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	+)))
393	393
394		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	766	+(((
	767	+
	768	+)))
395	395
396		-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	+)))
397	397
398		-[[image:1653269403619-508.png]]
	775	+
	776	+)))
399	399
400		-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	+)))
401	401
402		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
403	403
404		-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**
405	405
406		-[[image:1653269438444-278.png]]
407	407
408		-**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**(%%) ====
409	409
410		-|(((
411		-**AT+DATACUTx=a,b,c**
412	412
413		-* **a: length for the return of AT+COMMAND**
414		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
415		-* **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.
416	416	)))
417	417
418		-Examples:
	792	+* (((
	793	+(% style="color:#037691" %)**AT Command:**
419	419
420		-* Grab bytes:
	795	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
421	421
422		-[[image:1653269551753-223.png||height="311" width="717"]]
	797	+
	798	+)))
	799	+* (((
	800	+(% style="color:#037691" %)**Downlink Payload:**
	801	+)))
423	423
424		-* Grab a section.
	803	+(((
	804	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	805	+)))
425	425
426		-[[image:1653269568276-930.png||height="325" width="718"]]
	807	+(((
	808	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	809	+)))
427	427
428		-* Grab different sections.
429	429
430		-[[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)
431	431
432		-(% style="color:red" %)**Note:**
	814	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
433	433
434		-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.
435	435
436		-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.
437	437
438		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
439	439
440		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	820	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
441	441
442		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
443	443
444		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
445	445
446		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
447	447
448		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	825	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
449	449
450		-[[image:1653269618463-608.png]]
451	451
452		-=== 3.3.4 Compose the uplink payload ===
	828	+(((
	829	+AT+COMMANDx or AT+DATACUTx
	830	+)))
453	453
454	454	(((
455		-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"]].
456	456	)))
457	457
458	458	(((
459		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	837	+
460	460	)))
461	461
	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	+
462	462	(((
463		-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	+
464	464	)))
465	465
466	466	(((
467		-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	+
468	468	)))
469	469
470	470	(((
471		-(% 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**
472	472	)))
473	473
474	474	(((
475		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	870	+Where:
476	476	)))
477	477
478		-[[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	+)))
479	479
480		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	889	+(((
	890	+
481	481
482		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	892	+**Example:**
	893	+)))
483	483
484		-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	+)))
485	485
486		-(% 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	+)))
487	487
488		-1. Battery Info (2 bytes): Battery voltage
489		-1. PAYVER (1 byte): Defined by AT+PAYVER
490		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
491		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
492		-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	+)))
493	493
494		-[[image:1653269916228-732.png||height="433" width="711"]]
495	495
496	496
497		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
498	498
499		-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**(%%) ====
500	500
501		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
502	502
503		-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	+)))
504	504
505		-Below are the uplink payloads:
	917	+(((
	918	+This command is valid since v1.3 firmware version
	919	+)))
506	506
507		-[[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	+)))
508	508
	925	+(((
	926	+
	927	+)))
509	509
510		-(% 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	+)))
511	511
512		- ~* 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.
513	513
514		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
	942	+
	943	+)))
515	515
516		- * 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" %)​
517	517
518		- ~* 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" %)​
519	519
520		-=== 3.3.5 Uplink on demand ===
521	521
522		-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.
523	523
524		-Downlink control command:
525	525
526		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	952	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
527	527
528		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
529	529
	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	+)))
530	530
	959	+(((
	960	+Default value: 0, range:  0 ~~ 65 seconds
	961	+)))
531	531
532		-1.
533		-11.
534		-111. Uplink on Interrupt
	963	+(((
	964	+* (% style="color:#037691" %)** AT Command:**
535	535
536		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
537	537
538		-AT+INTMOD=0  Disable Interrupt
	967	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	968	+)))
539	539
540		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	970	+(((
	971	+
541	541
542		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	973	+**Example:**
	974	+)))
543	543
544		-AT+INTMOD=3  Interrupt trigger by rising edge.
	976	+(((
	977	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	978	+)))
545	545
	980	+(((
	981	+
	982	+)))
546	546
547		-1.
548		-11. Uplink Payload
	984	+* (((
	985	+(% style="color:#037691" %)** Downlink Payload:**
	986	+)))
549	549
550		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
551		-|Value|(((
552		-Battery(mV)
	988	+(((
	989	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	990	+)))
553	553
554		-&
555		-
556		-Interrupt _Flag
557		-)))|(((
558		-PAYLOAD_VER
559		-
	992	+(((
560	560
561		-)))|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.
562	562
563		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	995	+**Example:**
	996	+)))
564	564
	998	+(((
	999	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	1000	+)))
565	565
566		-function Decoder(bytes, port) {
567	567
568		-~/~/Payload Formats of RS485-BL Deceive
569	569
570		-return {
571	571
572		- ~/~/Battery,units:V
	1005	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
573	573
574		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
575	575
576		- ~/~/GPIO_EXTI
	1008	+(((
	1009	+Define to use one uplink or multiple uplinks for the sampling.
	1010	+)))
577	577
578		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	1012	+(((
	1013	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
579	579
580		- ~/~/payload of version
	1015	+
	1016	+)))
581	581
582		- Pay_ver:bytes[2],
	1018	+(((
	1019	+* (% style="color:#037691" %)** AT Command:**
583	583
584		- };
585	585
586		- }
	1022	+(% style="color:#4472c4" %)** AT+DATAUP=0**
587	587
	1024	+(% style="color:#4472c4" %)** AT+DATAUP=1**
588	588
	1026	+
	1027	+)))
589	589
	1029	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
590	590
	1031	+Each uplink is sent to the server at 20-second intervals when segmented.
591	591
592	592
	1034	+* (((
	1035	+(% style="color:#037691" %)** Downlink Payload:**
	1036	+)))
593	593
594		-TTN V3 uplink screen shot.
	1038	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
595	595
596		-[[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.
597	597
598		-1.
599		-11. Configure RS485-BL via AT or Downlink
600	600
601		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	1043	+* (((
	1044	+(% style="color:#037691" %)** AT Command:**
	1045	+)))
602	602
603		-There are two kinds of Commands:
	1047	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
604	604
605		-* **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
606	606
607		-* **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	+)))
608	608
609		-1.
610		-11.
611		-111. Common Commands:
	1054	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
612	612
613		-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.
614	614
615	615
616		-1.
617		-11.
618		-111. Sensor related commands:
619	619
620		-==== Choose Device Type (RS485 or TTL) ====
621	621
622		-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**(%%) ====
623	623
624		-* AT Command
625	625
626		-**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	+)))
627	627
628		-**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	+)))
629	629
	1072	+(((
	1073	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1074	+)))
630	630
631		-* Downlink Payload
	1076	+(((
	1077	+
	1078	+)))
632	632
633		-**0A aa**     à same as AT+MOD=aa
	1080	+* (((
	1081	+(% style="color:#037691" %)** Downlink Payload:**
	1082	+)))
634	634
	1084	+(((
	1085	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1086	+)))
635	635
636	636
637		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
638	638
639		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
640	640
641		-* AT Command
	1091	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
642	642
643		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
644	644
645		-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.
646	646
	1097	+
	1098	+)))
647	647
	1100	+* (((
	1101	+(% style="color:#037691" %)** AT Command:**
	1102	+)))
648	648
649		-* Downlink Payload
	1104	+(((
	1105	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1106	+)))
650	650
651		-Format: A8 MM NN XX XX XX XX YY
	1108	+(((
	1109	+
652	652
653		-Where:
	1111	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1112	+)))
654	654
655		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
656		-* NN: The length of RS485 command
657		-* XX XX XX XX: RS485 command total NN bytes
658		-* 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	+)))
659	659
660		-**Example 1:**
	1118	+(((
	1119	+
	1120	+)))
661	661
662		-To connect a Modbus Alarm with below commands.
	1122	+(((
	1123	+The uplink screen shot is:
	1124	+)))
663	663
664		-* 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" %)​
665	665
666		-* 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.
667	667
668		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	1129	+* (((
	1130	+(% style="color:#037691" %)** Downlink Payload:**
	1131	+)))
669	669
670		-**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	+)))
671	671
672		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
673	673
674		-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.
675	675
676	676
677		-**Example 2:**
	1140	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
678	678
679		-Check TTL Sensor return:
680	680
681		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1143	+(((
	1144	+Set the Rs485 serial communication parameters:
682	682
	1146	+
	1147	+)))
683	683
	1149	+* (((
	1150	+(% style="color:#037691" %)** AT Command:**
684	684
685	685
686		-==== Set Payload version ====
	1153	+
	1154	+)))
687	687
688		-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	+)))
689	689
690		-* 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
691	691
692		-AT+PAYVER: Set PAYVER field = 1
693	693
	1163	+(((
	1164	+* Set UART Parity
	1165	+)))
694	694
695		-* Downlink Payload:
	1167	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
696	696
697		-0xAE 01   à Set PAYVER field =  0x01
698	698
699		-0xAE 0F   à Set PAYVER field =  0x0F
	1170	+(((
	1171	+* Set STOPBIT
	1172	+)))
700	700
	1174	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
701	701
702		-==== Set RS485 Sampling Commands ====
703	703
704		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
705	705
706		-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	+)))
707	707
	1182	+(((
	1183	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1184	+)))
708	708
709		-* AT Command:
	1186	+(((
	1187	+
710	710
711		-AT+COMMANDx: Configure RS485 read command to sensor.
	1189	+**Example:**
	1190	+)))
712	712
713		-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	+)))
714	714
715		-AT+SEARCHx: Configure search command
	1199	+(((
	1200	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1201	+)))
716	716
	1203	+(((
	1204	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1205	+)))
717	717
718		-* Downlink Payload:
719	719
720		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
721	721
722		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
723	723
724		-Format: AF MM NN LL XX XX XX XX YY
725	725
726		-Where:
	1211	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
727	727
728		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
729		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
730		-* LL: The length of AT+COMMAND or AT+DATACUT command
731		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
732		-* 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	+)))
733	733
734		-Example:
	1217	+* (((
	1218	+(% style="color:#037691" %)** AT Command:**
	1219	+)))
735	735
736		-**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
737	737
738		-**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)
739	739
740		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
741	741
742	742
743		-0xAB downlink command can be used for set AT+SEARCHx
744	744
745		-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**(%%) ====
746	746
747		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
748		-* 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
749	749
750		-**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	+)))
751	751
	1235	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
752	752
753		-==== Fast command to handle MODBUS device ====
	1237	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
754	754
755		-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]].
756	756
757		-This command is valid since v1.3 firmware version
758	758
759	759
760		-AT+MBFUN has only two value:
	1242	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
761	761
762		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
763	763
764		-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	+)))
765	765
766		-* 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)
767	767
768		-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.
769	769
770		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
771		-* 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.
772		-* 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.
773	773
774		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
775	775
776	776
777		-[[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**(%%) ====
778	778
779	779
780		-* Downlink Commands:
	1259	+* (((
	1260	+(% style="color:#037691" %)** AT Command:**
	1261	+)))
781	781
782		-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)
783	783
	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.
784	784
785		-==== RS485 command timeout ====
786	786
787		-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	+)))
788	788
789		-Default value: 0, range:  0 ~~ 5 seconds
	1272	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
790	790
791	791
792		-* AT Command:
793	793
794		-AT+CMDDLaa=hex(bb cc)
795	795
796		-Example:
	1277	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
797	797
798		-**AT+CMDDL1=1000** to send the open time to 1000ms
799	799
	1280	+* (((
	1281	+(% style="color:#037691" %)** AT Command:**
	1282	+)))
800	800
801		-* 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.
802	802
803		-0x AA aa bb cc
804	804
805		-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.
806	806
807		- Example:
808	808
809		- 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"]]
810	810
811	811
812		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
813	813
814		-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.
815	815
816		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
817	817
818		-* 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"]]
819	819
820		-AT+DATAUP=0
821	821
822		-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.
823	823
824	824
825		-* Downlink Payload:
826	826
827		-0xAD 00   à Same as AT+DATAUP=0
828	828
829		-0xAD 01   à Same as AT+DATAUP=1
	1305	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
830	830
831	831
832		-==== Manually trigger an Uplink ====
	1308	+(((
	1309	+* (% style="color:#037691" %)**Downlink Payload:**
833	833
834		-Ask device to send an uplink immediately.
835	835
836		-* Downlink Payload:
	1312	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1313	+)))
837	837
838		-0x08 FF, RS485-BL will immediately send an uplink.
839	839
	1316	+Example：
840	840
841		-==== Clear RS485 Command ====
842	842
843		-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"]]
844	844
845	845
846		-* AT Command:
847	847
848		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
849	849
850		-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**(%%) ====
851	851
852		-Example screen shot after clear all RS485 commands.
853	853
	1327	+* (((
	1328	+(% style="color:#037691" %)** AT Command:**
	1329	+)))
854	854
	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.
855	855
856		-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.
857	857
858		-[[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)
859	859
860	860
861		-* Downlink Payload:
	1338	+* (((
	1339	+(% style="color:#037691" %)**Downlink Payload:**
	1340	+)))
862	862
863		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1342	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
864	864
	1344	+[[image:image-20220824144240-1.png]]
865	865
866		-==== Set Serial Communication Parameters ====
867	867
868		-Set the Rs485 serial communication parameters:
869	869
870		-* AT Command:
	1348	+== 3.6 Listening mode for RS485 network ==
871	871
872		-Set Baud Rate:
873	873
874		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1351	+(((
	1352	+This feature support since firmware v1.4
	1353	+)))
875	875
	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.
876	876
877		-Set UART parity
	1358	+
	1359	+)))
878	878
879		-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" %)​
880	880
	1363	+(((
	1364	+To enable the listening mode, use can run the command AT+RXMODE.
	1365	+)))
881	881
882		-Set STOPBIT
	1367	+(((
	1368	+
	1369	+)))
883	883
884		-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	+)))
885	885
	1398	+(((
	1399	+(% style="color:#037691" %)** Downlink Command:**
	1400	+)))
886	886
887		-* Downlink Payload:
	1402	+(((
	1403	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
	1404	+)))
888	888
889		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1406	+(((
	1407	+
	1408	+)))
890	890
891		-Example:
	1410	+(((
	1411	+**Example**:
	1412	+)))
892	892
893		-* A7 01 00 60   same as AT+BAUDR=9600
894		-* A7 01 04 80  same as AT+BAUDR=115200
	1414	+(((
	1415	+The RS485-LN is set to AT+RXMODE=2,1000
	1416	+)))
895	895
896		-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	+)))
897	897
898		-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	+)))
899	899
	1426	+(((
	1427	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1428	+)))
900	900
901		-==== 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	+)))
902	902
903		-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	+)))
904	904
905		-* AT Command:
	1438	+(((
	1439	+
	1440	+)))
906	906
907		-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	+)))
908	908
909		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
910	910
911		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
912	912
	1450	+== 3.7 Buttons ==
913	913
914		-* LoRaWAN Downlink Command:
915	915
916		-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"]]
917	917
918		-07 02 aa bb  Same as AT+3V3T=(aa bb)
	1459	+== 3.8 LEDs ==
919	919
920	920
	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.
921	921
	1467	+= 4. Case Study =
922	922
923		-1.
924		-11. Buttons
925	925
926		-|**Button**|**Feature**
927		-|**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]]
928	928
929		-1.
930		-11. +3V3 Output
931	931
932		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
933	933
934		-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 =
935	935
936	936
937		-The +3V3 output time can be controlled by AT Command.
	1477	+== 5.1 Access AT Command ==
938	938
939		-**AT+3V3T=1000**
940	940
941		-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	+)))
942	942
	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" %)​
943	943
944		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
945	945
	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	+)))
946	946
947		-1.
948		-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" %)​
949	949
950		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
951	951
952		-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	+)))
953	953
954	954
955		-The 5V output time can be controlled by AT Command.
956	956
957		-**AT+5VT=1000**
	1500	+== 5.2 Common AT Command Sequence ==
958	958
959		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
960	960
	1503	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
961	961
962		-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.
963	963
	1506	+If device has not joined network yet:
964	964
	1508	+* (% style="color:#037691" %)**AT+FDR**
	1509	+* (% style="color:#037691" %)**AT+NJM=0**
	1510	+* (% style="color:#037691" %)**ATZ**
965	965
	1512	+(((
	1513	+
966	966
967		-1.
968		-11. LEDs
	1515	+If device already joined network:
969	969
970		-|**LEDs**|**Feature**
971		-|**LED1**|Blink when device transmit a packet.
	1517	+* (% style="color:#037691" %)**AT+NJM=0**
	1518	+* (% style="color:#037691" %)**ATZ**
972	972
973		-1.
974		-11. Switch Jumper
	1520	+
	1521	+)))
975	975
976		-|**Switch Jumper**|**Feature**
977		-|**SW1**|(((
978		-ISP position: Upgrade firmware via UART
979	979
980		-Flash position: Configure device, check running status.
981		-)))
982		-|**SW2**|(((
983		-5V position: set to compatible with 5v I/O.
984	984
985		-3.3v position: set to compatible with 3.3v I/O.,
986		-)))
	1525	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
987	987
988		-+3.3V: is always ON
989	989
990		-+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
991	991
992		-1. Case Study
	1530	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
993	993
994		-User can check this URL for some case studies.
	1532	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
995	995
996		-[[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
997	997
	1536	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
998	998
	1538	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
999	999
	1540	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1000	1000
1001		-1. Use AT Command
1002		-11. Access AT Command
	1542	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1003	1003
1004		-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.
1005	1005
1006		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1546	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1007	1007
1008	1008
1009		-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:**
1010	1010
1011		-[[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
1012	1012
	1557	+
	1558	+)))
1013	1013
	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" %)​
1014	1014
1015		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1016	1016
1017	1017
	1564	+= 6. FAQ =
1018	1018
1019		-1.
1020		-11. Common AT Command Sequence
1021		-111. Multi-channel ABP mode (Use with SX1301/LG308)
1022	1022
1023		-If device has not joined network yet:
	1567	+== 6.1 How to upgrade the image? ==
1024	1024
1025		-AT+FDR
1026	1026
1027		-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	+)))
1028	1028
1029		-ATZ
	1574	+* (((
	1575	+Support new features
	1576	+)))
	1577	+* (((
	1578	+For bug fix
	1579	+)))
	1580	+* (((
	1581	+Change LoRaWAN bands.
	1582	+)))
1030	1030
	1584	+(((
	1585	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1586	+)))
1031	1031
1032		-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"]]
1033	1033
1034		-AT+NJM=0
	1590	+(% title="Click and drag to resize" %)​
1035	1035
1036		-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	+)))
1037	1037
1038		-1.
1039		-11.
1040		-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	+)))
1041	1041
1042		-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	+)))
1043	1043
1044		-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	+)))
1045	1045
1046		-AT+ADR=0 Set the Adaptive Data Rate Off
1047	1047
1048		-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" %)​
1049	1049
1050		-AT+TDC=60000  Set transmit interval to 60 seconds
1051	1051
1052		-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" %)​
1053	1053
1054		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1055	1055
1056		-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" %)​
1057	1057
1058		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1059	1059
1060		-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:**
1061	1061
1062		-**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" %)​
1063	1063
1064		-1. Make sure the device is set to ABP mode in the IoT Server.
1065		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1066		-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.
1067		-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
1068	1068
1069		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1070	1070
	1628	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1071	1071
1072		-1. FAQ
1073		-11. How to upgrade the image?
1074	1074
1075		-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.
1076	1076
1077		-* Support new features
1078		-* For bug fix
1079		-* Change LoRaWAN bands.
1080	1080
1081		-Below shows the hardware connection for how to upload an image to RS485-BL:
1082	1082
1083		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1635	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1084	1084
1085		-**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]].
1086	1086
1087		-**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"]].
1088	1088
1089		-**Step3: **Open flashloader; choose the correct COM port to update.
1090	1090
1091	1091
1092		-|(((
1093		-HOLD PRO then press the RST button, SYS will be ON, then click next
1094		-)))
	1642	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1095	1095
1096		-|(((
1097		-Board detected
1098		-)))
1099	1099
1100		-|(((
1101		-
1102		-)))
	1645	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1103	1103
1104		-[[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"]]
1105	1105
1106	1106
1107	1107
1108		-[[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? ==
1109	1109
1110	1110
1111		-[[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]].
1112	1112
1113	1113
1114		-1.
1115		-11. How to change the LoRa Frequency Bands/Region?
1116	1116
1117		-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? ==
1118	1118
1119	1119
	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/]]
1120	1120
1121		-1.
1122		-11. How many RS485-Slave can RS485-BL connects?
1123	1123
1124		-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]].
1125	1125
	1665	+= 7. Trouble Shooting =
1126	1126
1127	1127
	1668	+== 7.1 Downlink doesn't work, how to solve it? ==
1128	1128
1129		-1. Trouble Shooting
1130		-11. Downlink doesn’t work, how to solve it?
1131	1131
1132		-Please see this link for debug:
	1671	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1133	1133
1134		-[[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]]
1135	1135
1136	1136
	1675	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1137	1137
1138		-1.
1139		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1140	1140
1141		-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"]]
1142	1142
1143		-[[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]]
1144	1144
1145	1145
	1682	+= 8. Order Info =
1146	1146
1147		-1. Order Info
1148	1148
1149		-**Part Number: RS485-BL-XXX**
	1685	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1150	1150
1151		-**XXX:**
	1687	+(% style="color:blue" %)**XXX:**
1152	1152
1153		-* **EU433**: frequency bands EU433
1154		-* **EU868**: frequency bands EU868
1155		-* **KR920**: frequency bands KR920
1156		-* **CN470**: frequency bands CN470
1157		-* **AS923**: frequency bands AS923
1158		-* **AU915**: frequency bands AU915
1159		-* **US915**: frequency bands US915
1160		-* **IN865**: frequency bands IN865
1161		-* **RU864**: frequency bands RU864
1162		-* **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
1163	1163
1164		-1. Packing Info
	1700	+= 9.Packing Info =
1165	1165
	1702	+
1166	1166	**Package Includes**:
1167	1167
1168		-* RS485-BL x 1
	1705	+* RS485-LN x 1
1169	1169	* Stick Antenna for LoRa RF part x 1
1170	1170	* Program cable x 1
1171	1171
...	...	@@ -1176,9 +1176,68 @@
1176	1176	* Package Size / pcs : 14.5 x 8 x 5 cm
1177	1177	* Weight / pcs : 170g
1178	1178
1179		-1. Support
	1716	+= 10. FCC Caution for RS485LN-US915 =
1180	1180
1181		-* 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.
1182		-* 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
1183	1183
1184		-[[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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