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

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Details

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

Content

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1		-(% style="text-align:center" %)
2		-[[image:1653266934636-343.png||height="385" width="385"]]
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5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7	7
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9	9	**Table of Contents:**
10	10
	17	+{{toc/}}
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15	15	= 1.Introduction =
16	16
	33	+
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
18	18
19	19	(((
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21	21	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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25	25	RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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29	29	(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
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31	31
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33	33	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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38	38
39		-[[image:1653267211009-519.png||height="419" width="724"]]
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	73	+
42	42	== 1.2 Specifications ==
43	43
44		-**Hardware System:**
45	45
	77	+(% style="color:#037691" %)**Hardware System:**
	78	+
46	46	* STM32L072CZT6 MCU
47	47	* SX1276/78 Wireless Chip
48	48	* Power Consumption (exclude RS485 device):
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49	49	** Idle: 32mA@12v
50	50	** 20dB Transmit: 65mA@12v
51	51
52		-**Interface for Model:**
53	53
	86	+(% style="color:#037691" %)**Interface for Model:**
	87	+
54	54	* RS485
55	55	* Power Input 7~~ 24V DC.
56	56
57		-**LoRa Spec:**
58	58
	92	+(% style="color:#037691" %)**LoRa Spec:**
	93	+
59	59	* Frequency Range:
60	60	** Band 1 (HF): 862 ~~ 1020 Mhz
61	61	** Band 2 (LF): 410 ~~ 528 Mhz
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73	73	* Preamble detection.
74	74	* 127 dB Dynamic Range RSSI.
75	75	* Automatic RF Sense and CAD with ultra-fast AFC.
76		-* Packet engine up to 256 bytes with CRC.
	111	+* Packet engine up to 256 bytes with CRC
77	77
	113	+
	114	+
78	78	== 1.3 Features ==
79	79
	117	+
80	80	* LoRaWAN Class A & Class C protocol (default Class C)
81		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	119	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
82	82	* AT Commands to change parameters
83	83	* Remote configure parameters via LoRa Downlink
84	84	* Firmware upgradable via program port
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86	86	* Support Modbus protocol
87	87	* Support Interrupt uplink (Since hardware version v1.2)
88	88
	127	+
	128	+
89	89	== 1.4 Applications ==
90	90
	131	+
91	91	* Smart Buildings & Home Automation
92	92	* Logistics and Supply Chain Management
93	93	* Smart Metering
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95	95	* Smart Cities
96	96	* Smart Factory
97	97
	139	+
	140	+
98	98	== 1.5 Firmware Change log ==
99	99
	143	+
100	100	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
101	101
	146	+
	147	+
102	102	== 1.6 Hardware Change log ==
103	103
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104	104	(((
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106	106	v1.2: Add External Interrupt Pin.
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108	108	v1.0: Release
109	109	)))
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110	110	)))
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111	111
112	112	= 2. Power ON Device =
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114	114	(((
115	115	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
116	116
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121	121	Once there is power, the RS485-LN will be on.
122	122	)))
123	123
124		-[[image:1653268091319-405.png]]
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126	126
127	127	= 3. Operation Mode =
128	128
	187	+
129	129	== 3.1 How it works? ==
130	130
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131	131	(((
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132	132	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	+
135	135	== 3.2 Example to join LoRaWAN network ==
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137	137	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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139		-[[image:1653268155545-638.png||height="334" width="724"]]
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142	142	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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144	144	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
145	145
146		-[[image:1653268227651-549.png||height="592" width="720"]]
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148	148	(((
149		-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	+
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150	150	)))
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153		-**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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161		-[[image:1652953462722-299.png]]
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165	165	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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168	168	(((
169		-Add APP EUI in the application.
	249	+**Add APP EUI in the application.**
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173		-[[image:image-20220519174512-1.png]]
	253	+(% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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175		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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177		-[[image:image-20220519174512-3.png||height="556" width="724"]]
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179		-[[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"]]
180	180
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	263	+
181	181	You can also choose to create the device manually.
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183		-[[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" %)​
184	184
185		-Add APP KEY and DEV EUI
186	186
187		-[[image:1652953553383-907.png||height="514" width="724"]]
188	188
	270	+**Add APP KEY and DEV EUI**
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	273	+
	274	+
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190	190	(((
191		-**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	+
192	192	)))
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194		-[[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" %)​
195	195
	284	+
	285	+
196	196	== 3.3 Configure Commands to read data ==
197	197
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198	198	(((
199	199	(((
200		-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.
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201	201	)))
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202	202
203	203	(((
204		-(% 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**
205	205	)))
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206	206	)))
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207	207
208		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	308	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
209	209
	310	+
210	210	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:
211	211
212		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
213		-|(((
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	314	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	315	+|=(% style="width: 110px;" %)(((
214	214	**AT Commands**
215		-)))|(% style="width:285px" %)(((
	317	+)))|=(% style="width: 190px;" %)(((
216	216	**Description**
217		-)))|(% style="width:347px" %)(((
	319	+)))|=(% style="width: 190px;" %)(((
218	218	**Example**
219	219	)))
220		-|(((
	322	+|(% style="width:110px" %)(((
221	221	AT+BAUDR
222		-)))|(% style="width:285px" %)(((
	324	+)))|(% style="width:190px" %)(((
223	223	Set the baud rate (for RS485 connection). Default Value is: 9600.
224		-)))|(% style="width:347px" %)(((
	326	+)))|(% style="width:190px" %)(((
225	225	(((
226	226	AT+BAUDR=9600
227	227	)))
...	...	@@ -230,11 +230,11 @@
230	230	Options: (1200,2400,4800,14400,19200,115200)
231	231	)))
232	232	)))
233		-|(((
	335	+|(% style="width:110px" %)(((
234	234	AT+PARITY
235		-)))|(% style="width:285px" %)(((
	337	+)))|(% style="width:190px" %)(((
236	236	Set UART parity (for RS485 connection)
237		-)))|(% style="width:347px" %)(((
	339	+)))|(% style="width:190px" %)(((
238	238	(((
239	239	AT+PARITY=0
240	240	)))
...	...	@@ -243,9 +243,9 @@
243	243	Option: 0: no parity, 1: odd parity, 2: even parity
244	244	)))
245	245	)))
246		-|(((
	348	+|(% style="width:110px" %)(((
247	247	AT+STOPBIT
248		-)))|(% style="width:285px" %)(((
	350	+)))|(% style="width:190px" %)(((
249	249	(((
250	250	Set serial stopbit (for RS485 connection)
251	251	)))
...	...	@@ -253,7 +253,7 @@
253	253	(((
254	254
255	255	)))
256		-)))|(% style="width:347px" %)(((
	358	+)))|(% style="width:190px" %)(((
257	257	(((
258	258	AT+STOPBIT=0 for 1bit
259	259	)))
...	...	@@ -267,906 +267,1359 @@
267	267	)))
268	268	)))
269	269
	372	+
270	270	=== 3.3.2 Configure sensors ===
271	271
	375	+
272	272	(((
273	273	(((
274		-Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won’t run during each sampling.
	378	+Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
	379	+
	380	+
275	275	)))
276	276	)))
277	277
278		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
279		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
280		-|AT+CFGDEV|(% style="width:418px" %)(((
	384	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	385	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	386	+|AT+CFGDEV|(% style="width:110px" %)(((
	387	+(((
281	281	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	389	+)))
282	282
	391	+(((
283	283	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	393	+)))
284	284
	395	+(((
285	285	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
286		-)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	397	+)))
	398	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
287	287
	400	+
288	288	=== 3.3.3 Configure read commands for each sampling ===
289	289
	403	+
290	290	(((
291		-RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
	405	+During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
	406	+
	407	+To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	408	+
	409	+This section describes how to achieve above goals.
	410	+
	411	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	412	+
	413	+
	414	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	415	+
	416	+
	417	+~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
	418	+
	419	+2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
	420	+
	421	+3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
	422	+
	423	+
	424	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	425	+
	426	+Below are examples for the how above AT Commands works.
	427	+
	428	+
	429	+(% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
	430	+
	431	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	432	+|(% style="width:496px" %)(((
	433	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	434	+
	435	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	436	+
	437	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
292	292	)))
293	293
294		-(((
295		-During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
	440	+For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
	441	+
	442	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	443	+
	444	+
	445	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	446	+
	447	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	448	+|(% style="width:510px" %)(((
	449	+**AT+DATACUTx=a,b,c**
	450	+
	451	+* **a: length for the return of AT+COMMAND**
	452	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	453	+* **c: define the position for valid value.  **
296	296	)))
297	297
	456	+**Examples:**
	457	+
	458	+
	459	+* (% style="color:#037691" %)**Grab bytes**
	460	+
	461	+(% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	462	+
	463	+
	464	+
	465	+* (% style="color:#037691" %)**Grab a section**
	466	+
	467	+(% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	468	+
	469	+
	470	+
	471	+* (% style="color:#037691" %)**Grab different sections**
	472	+
	473	+(% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	474	+
	475	+
	476	+
	477	+)))
	478	+
	479	+=== 3.3.4 Compose the uplink payload ===
	480	+
	481	+
298	298	(((
299		-To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	483	+Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
	484	+
	485	+
300	300	)))
301	301
302	302	(((
303		-This section describes how to achieve above goals.
	489	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
	490	+
	491	+
304	304	)))
305	305
306	306	(((
307		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	495	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
308	308	)))
309	309
310	310	(((
311		-**Command from RS485-BL to Sensor:**
	499	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
312	312	)))
313	313
314	314	(((
315		-RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
	503	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	504	+
	505	+
316	316	)))
317	317
	508	+(% aria-label="1653269759169-150.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653269759169-150.png||data-widget="image" height="513" width="716"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	509	+
	510	+
	511	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
	512	+
	513	+
	514	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	515	+
	516	+Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	517	+
	518	+
	519	+1. PAYVER: Defined by AT+PAYVER
	520	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	521	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	522	+1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
	523	+
	524	+(% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	525	+
	526	+
	527	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	528	+
	529	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	530	+
	531	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	532	+
	533	+DATA3=the rest of Valid value of RETURN10= **30**
	534	+
	535	+
	536	+(% style="color:red" %)**Notice: In firmware v1.3, the Max bytes has been changed according to the max bytes in different Frequency Bands for lowest SF. As below:**
	537	+
	538	+
	539	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	540	+
	541	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	542	+
	543	+ * For US915 band, max 11 bytes for each uplink.
	544	+
	545	+ ~* For all other bands: max 51 bytes for each uplink.
	546	+
	547	+(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	548	+
	549	+(% style="color:red" %)** When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value. (Since v1.4.0)**
	550	+
	551	+
	552	+(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
	553	+
	554	+1 )  When (% style="color:blue" %)**AT+MOD=1**(%%), if the data intercepted by** AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n FFs**.
	555	+
	556	+
	557	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114359-3.png?width=1106&height=297&rev=1.1||alt="image-20220824114359-3.png" height="297" width="1106"]]
	558	+
	559	+
	560	+
	561	+2 )  When (% style="color:blue" %)**AT+MOD=2**(%%), if the data intercepted by **AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n 00s**.
	562	+
	563	+
	564	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114330-2.png?rev=1.1||alt="image-20220824114330-2.png"]]
	565	+
	566	+
	567	+
	568	+Below are the uplink payloads:
	569	+
	570	+
	571	+(% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	572	+
	573	+
	574	+
	575	+=== 3.3.5 Uplink on demand ===
	576	+
	577	+
	578	+Except uplink periodically, RS485-LN is able to uplink on demand. The server send downlink command to RS485-LN and RS485 will uplink data base on the command.
	579	+
	580	+(% style="color:blue" %)**Downlink control command:**
	581	+
	582	+(% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
	583	+
	584	+(% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
	585	+
	586	+
	587	+
	588	+=== 3.3.6 Uplink on Interrupt ===
	589	+
	590	+
	591	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	592	+
	593	+
	594	+(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	595	+
	596	+Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
	597	+
	598	+
	599	+
	600	+== 3.4 Uplink Payload ==
	601	+
	602	+
	603	+(% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
	604	+
	605	+(% title="Click and drag to resize" %)​
	606	+
	607	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	608	+
	609	+
	610	+
	611	+== 3.5 Configure RS485-LN via AT or Downlink ==
	612	+
	613	+
318	318	(((
319		-**Handle return from sensors to RS485-BL**:
	615	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
320	320	)))
321	321
322	322	(((
323		-After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
	619	+There are two kinds of Commands:
324	324	)))
325	325
326	326	* (((
327		-**AT+DATACUT**
	623	+(% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
328	328	)))
329	329
	626	+* (((
	627	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	628	+)))
	629	+
330	330	(((
331		-When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
	631	+
332	332	)))
333	333
	634	+
	635	+
	636	+=== 3.5.1 Common Commands ===
	637	+
	638	+
	639	+They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
	640	+
	641	+
	642	+
	643	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
	644	+
	645	+
	646	+Response feature is added to the server's downlink, a special package with a FPort of 200 will be uploaded immediately after receiving the data sent by the server.
	647	+
	648	+
	649	+(% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]]
	650	+
	651	+(% title="Click and drag to resize" %)​
	652	+
	653	+The first byte of this package represents whether the configuration is successful, 00 represents failure, 01 represents success. Except for the first byte, the other is the previous downlink. (All commands except A8 type commands are applicable)
	654	+
	655	+
	656	+
	657	+=== 3.5.3 Sensor related commands ===
	658	+
	659	+
	660	+
	661	+
	662	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
	663	+
	664	+
	665	+(((
	666	+This command is used to configure the RS485 devices; they won't be used during sampling.
	667	+)))
	668	+
	669	+(((
	670	+* (% style="color:#037691" %)**AT Command**
	671	+
	672	+(((
	673	+(% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
	674	+)))
	675	+)))
	676	+
	677	+(((
	678	+
	679	+)))
	680	+
334	334	* (((
335		-**AT+SEARCH**
	682	+(% style="color:#037691" %)**Downlink Payload**
336	336	)))
337	337
338	338	(((
339		-When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
	686	+Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
340	340	)))
341	341
342	342	(((
343		-**Define wait timeout:**
	690	+Where:
344	344	)))
345	345
	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	+* (((
346	346	(((
347		-Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example, AT+CMDDL1=1000 to send the open time to 1000ms
	704	+YY: How many bytes will be uplink from the return of this RS485 command,
348	348	)))
349	349
	707	+* (((
	708	+if YY=0, RS485-LN will execute the downlink command without uplink;
	709	+)))
	710	+* (((
	711	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	712	+)))
	713	+* (((
	714	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	715	+)))
	716	+)))
	717	+
350	350	(((
351		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	719	+
	720	+
	721	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
352	352	)))
353	353
354		-**Examples:**
	724	+(((
	725	+To connect a Modbus Alarm with below commands.
	726	+)))
355	355
356		-Below are examples for the how above AT Commands works.
	728	+* (((
	729	+The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
	730	+)))
357	357
358		-**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
	732	+* (((
	733	+The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
	734	+)))
359	359
360		-(% border="1" class="table-bordered" %)
361		-|(((
362		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	736	+(((
	737	+
363	363
364		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	739	+So if user want to use downlink command to control to RS485 Alarm, he can use:
	740	+)))
365	365
366		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
	742	+(((
	743	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
367	367	)))
368	368
369	369	(((
370		-For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
	747	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
371	371	)))
372	372
373	373	(((
374		-In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	751	+A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
375	375	)))
376	376
377	377	(((
378		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	755	+
379	379	)))
380	380
381		-(% border="1" class="table-bordered" %)
382		-|(((
383		-**AT+SEARCHx=aa,xx xx xx xx xx**
	758	+(((
	759	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	760	+)))
384	384
385		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
386		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
	762	+(((
	763	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	764	+)))
387	387
	766	+(((
388	388
389	389	)))
390	390
391		-**Examples:**
	770	+(((
	771	+(((
	772	+RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
	773	+)))
392	392
393		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	775	+
	776	+)))
394	394
395		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	778	+(((
	779	+ (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	780	+)))
396	396
397		-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**
398	398
399		-[[image:1653269403619-508.png]]
400	400
401		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
402	402
403		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
	785	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
404	404
405		-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**
406	406
407		-[[image:1653269438444-278.png]]
	788	+(((
	789	+This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
	790	+)))
408	408
409		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	792	+(((
	793	+* (% style="color:#037691" %)**AT Command:**
410	410
411		-|(((
412		-**AT+DATACUTx=a,b,c**
	795	+(% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
413	413
414		-* **a: length for the return of AT+COMMAND**
415		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
416		-* **c: define the position for valid value.  **
	797	+
417	417	)))
418	418
419		-Examples:
	800	+* (((
	801	+(% style="color:#037691" %)**Downlink Payload:**
	802	+)))
420	420
421		-* Grab bytes:
	804	+(((
	805	+(% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
	806	+)))
422	422
423		-[[image:1653269551753-223.png||height="311" width="717"]]
	808	+(((
	809	+(% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
	810	+)))
424	424
425		-* Grab a section.
426	426
427		-[[image:1653269568276-930.png||height="325" width="718"]]
	813	+1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)
428	428
429		-* Grab different sections.
	815	+[[image:image-20220824145428-2.png||height="168" width="1300"]]
430	430
431		-[[image:1653269593172-426.png||height="303" width="725"]]
432	432
433		-(% style="color:red" %)**Note:**
	818	+2 )  if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.
434	434
435		-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.
436	436
437		-Example:
	821	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
438	438
439		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
440	440
441		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
442	442
443		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
444	444
445		-(% style="color:red" %)Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
	826	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
446	446
447		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
448	448
449		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	829	+(((
	830	+AT+COMMANDx or AT+DATACUTx
	831	+)))
450	450
451		-[[image:1653269618463-608.png]]
	833	+(((
	834	+These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
	835	+)))
452	452
453		-=== 3.3.4 Compose the uplink payload ===
	837	+(((
	838	+
	839	+)))
454	454
	841	+* (((
	842	+(% style="color:#037691" %)**AT Command:**
	843	+)))
	844	+
	845	+(% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
	846	+
	847	+(% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
	848	+
	849	+
	850	+* (((
	851	+(% style="color:#037691" %)**Downlink Payload:**
	852	+)))
	853	+
455	455	(((
456		-Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.**
	855	+(% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	856	+
	857	+
457	457	)))
458	458
459	459	(((
460		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	861	+(% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
	862	+
	863	+
461	461	)))
462	462
463	463	(((
464		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
	867	+Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
465	465	)))
466	466
467	467	(((
468		-Final Payload is
	871	+Where:
469	469	)))
470	470
	874	+* (((
	875	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	876	+)))
	877	+* (((
	878	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	879	+)))
	880	+* (((
	881	+LL:  The length of AT+COMMAND or AT+DATACUT command
	882	+)))
	883	+* (((
	884	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	885	+)))
	886	+* (((
	887	+YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
	888	+)))
	889	+
471	471	(((
472		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	891	+
	892	+
	893	+**Example:**
473	473	)))
474	474
475	475	(((
476		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	897	+(% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1
477	477	)))
478	478
479		-[[image:1653269759169-150.png||height="513" width="716"]]
	900	+(((
	901	+(% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10**
	902	+)))
480	480
481		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	904	+(((
	905	+(% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10**
	906	+)))
482	482
483		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
484	484
485		-Final Payload is
486	486
487		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
488	488
489		-1. Battery Info (2 bytes): Battery voltage
490		-1. PAYVER (1 byte): Defined by AT+PAYVER
491		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
492		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
493		-1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
	911	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
494	494
495		-[[image:1653269916228-732.png||height="433" width="711"]]
496	496
	914	+(((
	915	+(% style="color:#4472c4" %)** AT+MBFUN**(%%) is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
	916	+)))
497	497
498		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
	918	+(((
	919	+This command is valid since v1.3 firmware version
	920	+)))
499	499
500		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	922	+(((
	923	+AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
	924	+)))
501	501
502		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
	926	+(((
	927	+
	928	+)))
503	503
504		-DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30
	930	+(((
	931	+**Example:**
	932	+)))
505	505
506		-Below are the uplink payloads:
	934	+* (((
	935	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	936	+)))
	937	+* (((
	938	+AT+COMMAND1= 01 03 00 10 00 08,1  ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
	939	+)))
	940	+* (((
	941	+AT+COMMAND2= 01 02 00 40 00 10,1  ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
507	507
508		-[[image:1653270130359-810.png]]
	943	+
	944	+)))
509	509
	946	+(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% title="Click and drag to resize" %)​
510	510
511		-(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:**
	948	+(% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
512	512
513		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
514	514
515		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
516	516
517		- * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
518	518
519		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
	953	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
520	520
521		-=== 3.3.5 Uplink on demand ===
522	522
523		-Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
	956	+(((
	957	+Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
	958	+)))
524	524
525		-Downlink control command:
	960	+(((
	961	+Default value: 0, range:  0 ~~ 65 seconds
	962	+)))
526	526
527		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	964	+(((
	965	+* (% style="color:#037691" %)** AT Command:**
528	528
529		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
	967	+(% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
	968	+)))
530	530
	970	+(((
	971	+
531	531
	973	+**Example:**
	974	+)))
532	532
533		-1.
534		-11.
535		-111. Uplink on Interrupt
	976	+(((
	977	+(% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
	978	+)))
536	536
537		-Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
	980	+(((
	981	+
	982	+)))
538	538
539		-AT+INTMOD=0  Disable Interrupt
	984	+* (((
	985	+(% style="color:#037691" %)** Downlink Payload:**
	986	+)))
540	540
541		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	988	+(((
	989	+(% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
	990	+)))
542	542
543		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
	992	+(((
	993	+
544	544
545		-AT+INTMOD=3  Interrupt trigger by rising edge.
	995	+**Example:**
	996	+)))
546	546
	998	+(((
	999	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	1000	+)))
547	547
548		-1.
549		-11. Uplink Payload
550	550
551		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
552		-|Value|(((
553		-Battery(mV)
554	554
555		-&
556	556
557		-Interrupt _Flag
558		-)))|(((
559		-PAYLOAD_VER
	1005	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
560	560
	1007	+
	1008	+(((
	1009	+Define to use one uplink or multiple uplinks for the sampling.
	1010	+)))
	1011	+
	1012	+(((
	1013	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
	1014	+
561	561
562		-)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
	1016	+)))
563	563
564		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	1018	+(((
	1019	+* (% style="color:#037691" %)** AT Command:**
565	565
	1021	+(% style="color:#4472c4" %)** AT+DATAUP=0**
566	566
567		-function Decoder(bytes, port) {
	1023	+(% style="color:#4472c4" %)** AT+DATAUP=1**
568	568
569		-~/~/Payload Formats of RS485-BL Deceive
	1025	+
	1026	+)))
570	570
571		-return {
	1028	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
572	572
573		- ~/~/Battery,units:V
	1030	+Each uplink is sent to the server at 20-second intervals when segmented.
574	574
575		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
576	576
577		- ~/~/GPIO_EXTI
	1033	+* (((
	1034	+(% style="color:#037691" %)** Downlink Payload:**
	1035	+)))
578	578
579		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
	1037	+(% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
580	580
581		- ~/~/payload of version
	1039	+(% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
582	582
583		- Pay_ver:bytes[2],
584	584
585		- };
	1042	+* (((
	1043	+(% style="color:#037691" %)** AT Command:**
	1044	+)))
586	586
587		- }
	1046	+(% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
588	588
589	589
	1049	+* (((
	1050	+(% style="color:#037691" %)** Downlink Payload:**
	1051	+)))
590	590
	1053	+(% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
591	591
	1055	+Each uplink is sent to the server at 20-second intervals when segmented.
592	592
593	593
594	594
595		-TTN V3 uplink screen shot.
596	596
597		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1060	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
598	598
599		-1.
600		-11. Configure RS485-BL via AT or Downlink
601	601
602		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
	1063	+(((
	1064	+Ask device to send an uplink immediately.
	1065	+)))
603	603
604		-There are two kinds of Commands:
	1067	+* (((
	1068	+(% style="color:#037691" %)** AT Command:**
	1069	+)))
605	605
606		-* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
	1071	+(((
	1072	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1073	+)))
607	607
608		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	1075	+(((
	1076	+
	1077	+)))
609	609
610		-1.
611		-11.
612		-111. Common Commands:
	1079	+* (((
	1080	+(% style="color:#037691" %)** Downlink Payload:**
	1081	+)))
613	613
614		-They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
	1083	+(((
	1084	+(% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
	1085	+)))
615	615
616	616
617		-1.
618		-11.
619		-111. Sensor related commands:
620	620
621		-==== Choose Device Type (RS485 or TTL) ====
622	622
623		-RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
	1090	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
624	624
625		-* AT Command
626	626
627		-**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
	1093	+(((
	1094	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
628	628
629		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	1096	+
	1097	+)))
630	630
	1099	+* (((
	1100	+(% style="color:#037691" %)** AT Command:**
	1101	+)))
631	631
632		-* Downlink Payload
	1103	+(((
	1104	+(% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
	1105	+)))
633	633
634		-**0A aa**     à same as AT+MOD=aa
	1107	+(((
	1108	+
635	635
	1110	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1111	+)))
636	636
	1113	+(((
	1114	+Example screen shot after clear all RS485 commands.
	1115	+)))
637	637
638		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
	1117	+(((
	1118	+
	1119	+)))
639	639
640		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	1121	+(((
	1122	+The uplink screen shot is:
	1123	+)))
641	641
642		-* AT Command
	1125	+(% aria-label="1654160691922-496.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654160691922-496.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
643	643
644		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
645	645
646		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1128	+* (((
	1129	+(% style="color:#037691" %)** Downlink Payload:**
	1130	+)))
647	647
	1132	+(((
	1133	+(% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
	1134	+)))
648	648
649	649
650		-* Downlink Payload
651	651
652		-Format: A8 MM NN XX XX XX XX YY
653	653
654		-Where:
	1139	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
655	655
656		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
657		-* NN: The length of RS485 command
658		-* XX XX XX XX: RS485 command total NN bytes
659		-* 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
660	660
661		-**Example 1:**
	1142	+(((
	1143	+Set the Rs485 serial communication parameters:
662	662
663		-To connect a Modbus Alarm with below commands.
	1145	+
	1146	+)))
664	664
665		-* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
	1148	+* (((
	1149	+(% style="color:#037691" %)** AT Command:**
666	666
667		-* 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.
668	668
669		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	1152	+
	1153	+)))
670	670
671		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1155	+(((
	1156	+* Set Baud Rate
	1157	+)))
672	672
673		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
	1159	+(% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
674	674
675		-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.
676	676
	1162	+(((
	1163	+* Set UART Parity
	1164	+)))
677	677
678		-**Example 2:**
	1166	+(% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
679	679
680		-Check TTL Sensor return:
681	681
682		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
	1169	+(((
	1170	+* Set STOPBIT
	1171	+)))
683	683
	1173	+(% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
684	684
685	685
686	686
687		-==== Set Payload version ====
	1177	+* (((
	1178	+(% style="color:#037691" %)** Downlink Payload:**
	1179	+)))
688	688
689		-This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
	1181	+(((
	1182	+(% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
	1183	+)))
690	690
691		-* AT Command:
	1185	+(((
	1186	+
692	692
693		-AT+PAYVER: Set PAYVER field = 1
	1188	+**Example:**
	1189	+)))
694	694
	1191	+* (((
	1192	+A7 01 00 60  same as AT+BAUDR=9600
	1193	+)))
	1194	+* (((
	1195	+A7 01 04 80  same as AT+BAUDR=115200
	1196	+)))
695	695
696		-* Downlink Payload:
	1198	+(((
	1199	+* A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1200	+)))
697	697
698		-0xAE 01   à Set PAYVER field =  0x01
	1202	+(((
	1203	+* A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1204	+)))
699	699
700		-0xAE 0F   à Set PAYVER field =  0x0F
701	701
702	702
703		-==== Set RS485 Sampling Commands ====
704	704
705		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
706	706
707		-These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
	1210	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
708	708
	1212	+(((
	1213	+
	1214	+)))
709	709
710		-* AT Command:
	1216	+* (((
	1217	+(% style="color:#037691" %)** AT Command:**
	1218	+)))
711	711
712		-AT+COMMANDx: Configure RS485 read command to sensor.
	1220	+(% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
713	713
714		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1222	+(% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
715	715
716		-AT+SEARCHx: Configure search command
717	717
718	718
719		-* Downlink Payload:
720	720
721		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	1227	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
722	722
723		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
724	724
725		-Format: AF MM NN LL XX XX XX XX YY
	1230	+* (((
	1231	+(% style="color:#037691" %)** AT Command:**
	1232	+)))
726	726
727		-Where:
	1234	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
728	728
729		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
730		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
731		-* LL: The length of AT+COMMAND or AT+DATACUT command
732		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
733		-* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
	1236	+(% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
734	734
735		-Example:
736	736
737		-**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
738	738
739		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
740	740
741		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
	1241	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
742	742
743	743
744		-0xAB downlink command can be used for set AT+SEARCHx
	1244	+* (((
	1245	+(% style="color:#037691" %)** AT Command:**
	1246	+)))
745	745
746		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
	1248	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
747	747
748		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
749		-* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
	1250	+(% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
750	750
751		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
752	752
753	753
754		-==== Fast command to handle MODBUS device ====
755	755
756		-AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
	1255	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
757	757
758		-This command is valid since v1.3 firmware version
759	759
	1258	+* (((
	1259	+(% style="color:#037691" %)** AT Command:**
	1260	+)))
760	760
761		-AT+MBFUN has only two value:
	1262	+ (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
762	762
763		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
	1264	+ (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
764	764
765		-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.
766	766
767		-* AT+MBFUN=0: Disable Modbus fast reading.
	1267	+* (((
	1268	+(% style="color:#037691" %)** Downlink Payload:**
	1269	+)))
768	768
769		-Example:
	1271	+(% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
770	770
771		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
772		-* 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.
773		-* 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.
774	774
775		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
776	776
777	777
778		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1276	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
779	779
780	780
781		-* Downlink Commands:
	1279	+* (((
	1280	+(% style="color:#037691" %)** AT Command:**
	1281	+)))
782	782
783		-A9 aa -à Same as AT+MBFUN=aa
	1283	+(% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
784	784
785	785
786		-==== RS485 command timeout ====
	1286	+Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
787	787
788		-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.
789	789
790		-Default value: 0, range:  0 ~~ 5 seconds
	1289	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
791	791
792	792
793		-* AT Command:
794	794
795		-AT+CMDDLaa=hex(bb cc)
	1293	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
796	796
797		-Example:
798	798
799		-**AT+CMDDL1=1000** to send the open time to 1000ms
	1296	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
800	800
801	801
802		-* Downlink Payload:
	1299	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
803	803
804		-0x AA aa bb cc
805	805
806		-Same as: AT+CMDDLaa=hex(bb cc)
807	807
808		- Example:
809	809
810		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
	1304	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
811	811
812	812
813		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
	1307	+(((
	1308	+* (% style="color:#037691" %)**Downlink Payload:**
814	814
815		-Define to use one uplink or multiple uplinks for the sampling.
	1310	+(% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1311	+)))
816	816
817		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
818	818
819		-* AT Command:
	1314	+Example：
820	820
821		-AT+DATAUP=0
822	822
823		-AT+DATAUP=1
	1317	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
824	824
825	825
826		-* Downlink Payload:
827	827
828		-0xAD 00   à Same as AT+DATAUP=0
829	829
830		-0xAD 01   à Same as AT+DATAUP=1
	1322	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
831	831
832	832
833		-==== Manually trigger an Uplink ====
	1325	+* (((
	1326	+(% style="color:#037691" %)** AT Command:**
	1327	+)))
834	834
835		-Ask device to send an uplink immediately.
	1329	+(% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
836	836
837		-* Downlink Payload:
	1331	+(% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
838	838
839		-0x08 FF, RS485-BL will immediately send an uplink.
	1333	+(% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
840	840
841	841
842		-==== Clear RS485 Command ====
	1336	+* (((
	1337	+(% style="color:#037691" %)**Downlink Payload:**
	1338	+)))
843	843
844		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	1340	+(% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
845	845
	1342	+[[image:image-20220824144240-1.png]]
846	846
847		-* AT Command:
848	848
849		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
850	850
851		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1346	+== 3.6 Listening mode for RS485 network ==
852	852
853		-Example screen shot after clear all RS485 commands.
854	854
	1349	+(((
	1350	+This feature support since firmware v1.4
	1351	+)))
855	855
	1353	+(((
	1354	+RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN.
856	856
857		-The uplink screen shot is:
	1356	+
	1357	+)))
858	858
859		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1359	+(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
860	860
	1361	+(% title="Click and drag to resize" %)​
861	861
862		-* Downlink Payload:
	1363	+(((
	1364	+To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
	1365	+)))
863	863
864		-0x09 aa bb same as AT+CMDEAR=aa,bb
	1367	+(((
	1368	+
	1369	+)))
865	865
	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	+)))
866	866
867		-==== Set Serial Communication Parameters ====
	1398	+(((
	1399	+
868	868
869		-Set the Rs485 serial communication parameters:
	1401	+(% style="color:#037691" %)**Downlink Command:**
	1402	+)))
870	870
871		-* AT Command:
	1404	+(((
	1405	+(% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
	1406	+)))
872	872
873		-Set Baud Rate:
	1408	+(((
	1409	+
	1410	+)))
874	874
875		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1412	+(((
	1413	+**Example**:
	1414	+)))
876	876
	1416	+(((
	1417	+The RS485-LN is set to AT+RXMODE=2,1000
	1418	+)))
877	877
878		-Set UART parity
	1420	+(((
	1421	+There is a two Modbus commands in the RS485 network as below:
	1422	+)))
879	879
880		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1424	+(((
	1425	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1426	+)))
881	881
	1428	+(((
	1429	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1430	+)))
882	882
883		-Set STOPBIT
	1432	+(((
	1433	+RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b  (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1434	+)))
884	884
885		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1436	+(((
	1437	+(% aria-label="image-20220602171200-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-9.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	1438	+)))
886	886
	1440	+(((
	1441	+
	1442	+)))
887	887
888		-* Downlink Payload:
	1444	+(((
	1445	+(((
	1446	+(% style="color:red" %)**Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while.**
	1447	+)))
	1448	+)))
889	889
890		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
891	891
892		-Example:
893	893
894		-* A7 01 00 60   same as AT+BAUDR=9600
895		-* A7 01 04 80  same as AT+BAUDR=115200
	1452	+== 3.7 Buttons ==
896	896
897		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
898	898
899		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1455	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1456	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1457	+|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
	1458	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1459	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
900	900
901	901
902		-==== Control output power duration ====
903	903
904		-User can set the output power duration before each sampling.
	1463	+== 3.8 LEDs ==
905	905
906		-* AT Command:
907	907
908		-Example:
	1466	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1467	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1468	+|**PWR**|Always on if there is power
	1469	+|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message.
909	909
910		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
911	911
912		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
913	913
	1473	+= 4. Case Study =
914	914
915		-* LoRaWAN Downlink Command:
916	916
917		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1476	+User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
918	918
919		-07 02 aa bb  Same as AT+3V3T=(aa bb)
920	920
921	921
	1480	+= 5. Use AT Command =
922	922
923	923
924		-1.
925		-11. Buttons
	1483	+== 5.1 Access AT Command ==
926	926
927		-|**Button**|**Feature**
928		-|**RST**|Reboot RS485-BL
929	929
930		-1.
931		-11. +3V3 Output
	1486	+(((
	1487	+RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
932	932
933		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
	1489	+
	1490	+)))
934	934
935		-The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling.
	1492	+(% aria-label="1654162355560-817.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162355560-817.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
936	936
937	937
938		-The +3V3 output time can be controlled by AT Command.
939	939
940		-**AT+3V3T=1000**
	1496	+(((
	1497	+In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
941	941
942		-Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
	1499	+
	1500	+)))
943	943
	1502	+(% aria-label="1654162368066-342.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162368066-342.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
944	944
945		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
946	946
	1505	+(((
	1506	+More detail AT Command manual can be found at [[AT Command Manual>>https://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/]]
	1507	+)))
947	947
948		-1.
949		-11. +5V Output
950	950
951		-RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
952	952
953		-The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling.
	1511	+== 5.2 Common AT Command Sequence ==
954	954
955	955
956		-The 5V output time can be controlled by AT Command.
	1514	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
957	957
958		-**AT+5VT=1000**
959	959
960		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
	1517	+If device has not joined network yet:
961	961
	1519	+* (% style="color:#037691" %)**AT+FDR**
	1520	+* (% style="color:#037691" %)**AT+NJM=0**
	1521	+* (% style="color:#037691" %)**ATZ**
962	962
963		-By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
	1523	+(((
	1524	+
964	964
	1526	+If device already joined network:
965	965
	1528	+* (% style="color:#037691" %)**AT+NJM=0**
	1529	+* (% style="color:#037691" %)**ATZ**
966	966
	1531	+
	1532	+)))
967	967
968		-1.
969		-11. LEDs
970	970
971		-|**LEDs**|**Feature**
972		-|**LED1**|Blink when device transmit a packet.
973	973
974		-1.
975		-11. Switch Jumper
	1536	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
976	976
977		-|**Switch Jumper**|**Feature**
978		-|**SW1**|(((
979		-ISP position: Upgrade firmware via UART
980	980
981		-Flash position: Configure device, check running status.
982		-)))
983		-|**SW2**|(((
984		-5V position: set to compatible with 5v I/O.
	1539	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
985	985
986		-3.3v position: set to compatible with 3.3v I/O.,
987		-)))
	1541	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
988	988
989		-+3.3V: is always ON
	1543	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
990	990
991		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1545	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
992	992
993		-1. Case Study
	1547	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
994	994
995		-User can check this URL for some case studies.
	1549	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
996	996
997		-[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
	1551	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
998	998
	1553	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
999	999
	1555	+(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1000	1000
	1557	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1001	1001
1002		-1. Use AT Command
1003		-11. Access AT Command
1004	1004
1005		-RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
	1560	+(% style="color:red" %)**Note:**
1006	1006
1007		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1562	+(((
	1563	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1564	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1565	+3. Make sure SF / bandwidth setting in LG01/LG02 match the settings of AT+DR. refer [[this link>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_Gateway/&file=LoRaWAN%201.0.3%20Regional%20Parameters.xlsx]] to see what DR means.
	1566	+4. The command AT+RX2FQ and AT+RX2DR is to let downlink work. to set the correct parameters, user can check the actually downlink parameters to be used. As below. Which shows the RX2FQ should use 868400000 and RX2DR should be 5
1008	1008
	1568	+
	1569	+)))
1009	1009
1010		-In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
	1571	+(% aria-label="1654162478620-421.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162478620-421.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1011	1011
1012		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1013	1013
1014	1014
	1575	+= 6. FAQ =
1015	1015
1016		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
1017	1017
	1578	+== 6.1 How to upgrade the image? ==
1018	1018
1019	1019
1020		-1.
1021		-11. Common AT Command Sequence
1022		-111. Multi-channel ABP mode (Use with SX1301/LG308)
	1581	+(((
	1582	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1583	+)))
1023	1023
1024		-If device has not joined network yet:
	1585	+* (((
	1586	+Support new features
	1587	+)))
	1588	+* (((
	1589	+For bug fix
	1590	+)))
	1591	+* (((
	1592	+Change LoRaWAN bands.
	1593	+)))
1025	1025
1026		-AT+FDR
	1595	+(((
	1596	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1597	+)))
1027	1027
1028		-AT+NJM=0
	1599	+(% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
1029	1029
1030		-ATZ
	1601	+(% title="Click and drag to resize" %)​
1031	1031
	1603	+(((
	1604	+(% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1032	1032
1033		-If device already joined network:
	1606	+
	1607	+)))
1034	1034
1035		-AT+NJM=0
	1609	+(((
	1610	+(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]].
1036	1036
1037		-ATZ
	1612	+
	1613	+)))
1038	1038
1039		-1.
1040		-11.
1041		-111. Single-channel ABP mode (Use with LG01/LG02)
	1615	+(((
	1616	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1042	1042
1043		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1618	+
	1619	+)))
1044	1044
1045		-AT+NJM=0 Set to ABP mode
	1621	+(((
	1622	+(((
	1623	+(((
	1624	+(% style="color:blue" %) Hold down the PRO button and then momentarily press the RST reset button and the SYS led will change from OFF to ON, While SYS LED is RED ON, it means the RS485-LN is ready to be program.
	1625	+)))
	1626	+)))
	1627	+)))
1046	1046
1047		-AT+ADR=0 Set the Adaptive Data Rate Off
1048	1048
1049		-AT+DR=5  Set Data Rate
	1630	+(% aria-label="image-20220602175818-12.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175818-12.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1050	1050
1051		-AT+TDC=60000  Set transmit interval to 60 seconds
1052	1052
1053		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1633	+(% aria-label="image-20220602175848-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175848-13.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1054	1054
1055		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1056	1056
1057		-AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
	1636	+(% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1058	1058
1059		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1060	1060
1061		-ATZ          Reset MCU
	1639	+(% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1062	1062
1063		-**Note:**
	1641	+(% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1064	1064
1065		-1. Make sure the device is set to ABP mode in the IoT Server.
1066		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1067		-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.
1068		-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
1069	1069
1070		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
1071	1071
	1645	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
1072	1072
1073		-1. FAQ
1074		-11. How to upgrade the image?
1075	1075
1076		-The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
	1648	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1077	1077
1078		-* Support new features
1079		-* For bug fix
1080		-* Change LoRaWAN bands.
1081	1081
1082		-Below shows the hardware connection for how to upload an image to RS485-BL:
1083	1083
1084		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
	1652	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1085	1085
1086		-**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]].
1087	1087
1088		-**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
	1655	+The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1089	1089
1090		-**Step3: **Open flashloader; choose the correct COM port to update.
1091	1091
1092	1092
1093		-|(((
1094		-HOLD PRO then press the RST button, SYS will be ON, then click next
1095		-)))
	1659	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1096	1096
1097		-|(((
1098		-Board detected
1099		-)))
1100	1100
1101		-|(((
1102		-
1103		-)))
	1662	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1104	1104
1105		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
	1664	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1106	1106
1107	1107
1108	1108
1109		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
	1668	+== 6.5 Can i use point to point communication for RS485-LN? ==
1110	1110
1111	1111
1112		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
	1671	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1113	1113
1114	1114
1115		-1.
1116		-11. How to change the LoRa Frequency Bands/Region?
1117	1117
1118		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
	1675	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1119	1119
1120	1120
	1678	+[[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1121	1121
1122		-1.
1123		-11. How many RS485-Slave can RS485-BL connects?
1124	1124
1125		-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]].
1126	1126
	1682	+= 7. Trouble Shooting =
1127	1127
1128	1128
	1685	+== 7.1 Downlink doesn't work, how to solve it? ==
1129	1129
1130		-1. Trouble Shooting
1131		-11. Downlink doesn’t work, how to solve it?
1132	1132
1133		-Please see this link for debug:
	1688	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1134	1134
1135		-[[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]]
1136	1136
1137	1137
	1692	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1138	1138
1139		-1.
1140		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1141	1141
1142		-It might about the channels mapping. Please see for detail.
	1695	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1143	1143
1144		-[[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]]
1145	1145
1146	1146
	1699	+= 8. Order Info =
1147	1147
1148		-1. Order Info
1149	1149
1150		-**Part Number: RS485-BL-XXX**
	1702	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1151	1151
1152		-**XXX:**
	1704	+(% style="color:blue" %)**XXX:**
1153	1153
1154		-* **EU433**: frequency bands EU433
1155		-* **EU868**: frequency bands EU868
1156		-* **KR920**: frequency bands KR920
1157		-* **CN470**: frequency bands CN470
1158		-* **AS923**: frequency bands AS923
1159		-* **AU915**: frequency bands AU915
1160		-* **US915**: frequency bands US915
1161		-* **IN865**: frequency bands IN865
1162		-* **RU864**: frequency bands RU864
1163		-* **KZ865: **frequency bands KZ865
	1706	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1707	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1708	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1709	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1710	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1711	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1712	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1713	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1714	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1715	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1164	1164
1165		-1. Packing Info
1166	1166
	1718	+
	1719	+= 9.Packing Info =
	1720	+
	1721	+
1167	1167	**Package Includes**:
1168	1168
1169		-* RS485-BL x 1
	1724	+* RS485-LN x 1
1170	1170	* Stick Antenna for LoRa RF part x 1
1171	1171	* Program cable x 1
1172	1172
...	...	@@ -1177,9 +1177,70 @@
1177	1177	* Package Size / pcs : 14.5 x 8 x 5 cm
1178	1178	* Weight / pcs : 170g
1179	1179
1180		-1. Support
1181	1181
1182		-* 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.
1183		-* 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
1184	1184
1185		-[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
	1737	+= 10. FCC Caution for RS485LN-US915 =
	1738	+
	1739	+
	1740	+(((
	1741	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1742	+)))
	1743	+
	1744	+(((
	1745	+This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
	1746	+)))
	1747	+
	1748	+(((
	1749	+
	1750	+)))
	1751	+
	1752	+(((
	1753	+(% style="color:red" %)**IMPORTANT NOTE:**
	1754	+)))
	1755	+
	1756	+(((
	1757	+(% style="color:red" %)**Note: **(%%)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
	1758	+)))
	1759	+
	1760	+(((
	1761	+—Reorient or relocate the receiving antenna.
	1762	+)))
	1763	+
	1764	+(((
	1765	+—Increase the separation between the equipment and receiver.
	1766	+)))
	1767	+
	1768	+(((
	1769	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1770	+)))
	1771	+
	1772	+(((
	1773	+—Consult the dealer or an experienced radio/TV technician for help.
	1774	+)))
	1775	+
	1776	+(((
	1777	+
	1778	+)))
	1779	+
	1780	+(((
	1781	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1782	+)))
	1783	+
	1784	+(((
	1785	+This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.
	1786	+)))
	1787	+
	1788	+
	1789	+
	1790	+= 11. Support =
	1791	+
	1792	+
	1793	+* (((
	1794	+Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule.
	1795	+)))
	1796	+* (((
	1797	+Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]].
	1798	+
	1799	+
	1800	+
	1801	+)))

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