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

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Details

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

Content

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1		-(% style="text-align:center" %)
2		-[[image:1653266934636-343.png||height="385" width="385"]]
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5	5
6		-**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7	7
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9	9	**Table of Contents:**
10	10
	17	+{{toc/}}
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15	15	= 1.Introduction =
16	16
	33	+
17	17	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
18	18
19	19	(((
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21	21	The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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25	25	RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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29	29	(% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
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33	33	(% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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35	35	(% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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39		-[[image:1653267211009-519.png||height="419" width="724"]]
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	73	+
42	42	== 1.2 Specifications ==
43	43
44		-**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	+
	87	+(% style="color:#037691" %)**Interface for Model:**
	88	+
54	54	* RS485
55	55	* Power Input 7~~ 24V DC.
56	56
57		-**LoRa Spec:**
58	58
	93	+
	94	+(% style="color:#037691" %)**LoRa Spec:**
	95	+
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.
	113	+* Packet engine up to 256 bytes with CRC
77	77
	115	+
	116	+
	117	+
78	78	== 1.3 Features ==
79	79
	120	+
80	80	* LoRaWAN Class A & Class C protocol (default Class C)
81		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	122	+* 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
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	132	+
89	89	== 1.4 Applications ==
90	90
	135	+
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
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	145	+
98	98	== 1.5 Firmware Change log ==
99	99
	148	+
100	100	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
101	101
	151	+
	152	+
102	102	== 1.6 Hardware Change log ==
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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 =
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	192	+
129	129	== 3.1 How it works? ==
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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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	204	+
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.
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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:
	229	+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:
	230	+
	231	+
150	150	)))
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153		-**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
	235	+(% 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.
	254	+**Add APP EUI in the application.**
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173		-[[image:image-20220519174512-1.png]]
	258	+(% 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]]
	264	+(% 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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	268	+
181	181	You can also choose to create the device manually.
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183		-[[image:1652953542269-423.png||height="710" width="723"]]
	271	+(% 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
	275	+**Add APP KEY and DEV EUI**
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	278	+
	279	+
	280	+
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.
	282	+(% 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.
	283	+
	284	+
192	192	)))
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194		-[[image:1652953568895-172.png||height="232" width="724"]]
	287	+(% 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
	289	+
	290	+
196	196	== 3.3 Configure Commands to read data ==
197	197
	293	+
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.
	296	+(((
	297	+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.
	298	+
	299	+
201	201	)))
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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
	304	+(((
	305	+(% 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	)))
	307	+
	308	+
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206	206	)))
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207	207
208		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	313	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
209	209
	315	+
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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	319	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	320	+|=(% style="width: 110px;" %)(((
214	214	**AT Commands**
215		-)))|(% style="width:285px" %)(((
	322	+)))|=(% style="width: 190px;" %)(((
216	216	**Description**
217		-)))|(% style="width:347px" %)(((
	324	+)))|=(% style="width: 190px;" %)(((
218	218	**Example**
219	219	)))
220		-|(((
	327	+|(% style="width:110px" %)(((
221	221	AT+BAUDR
222		-)))|(% style="width:285px" %)(((
	329	+)))|(% style="width:190px" %)(((
223	223	Set the baud rate (for RS485 connection). Default Value is: 9600.
224		-)))|(% style="width:347px" %)(((
	331	+)))|(% 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		-|(((
	340	+|(% style="width:110px" %)(((
234	234	AT+PARITY
235		-)))|(% style="width:285px" %)(((
	342	+)))|(% style="width:190px" %)(((
236	236	Set UART parity (for RS485 connection)
237		-)))|(% style="width:347px" %)(((
	344	+)))|(% 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		-|(((
	353	+|(% style="width:110px" %)(((
247	247	AT+STOPBIT
248		-)))|(% style="width:285px" %)(((
	355	+)))|(% 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" %)(((
	363	+)))|(% style="width:190px" %)(((
257	257	(((
258	258	AT+STOPBIT=0 for 1bit
259	259	)))
...	...	@@ -267,906 +267,1293 @@
267	267	)))
268	268	)))
269	269
	377	+
	378	+
	379	+
270	270	=== 3.3.2 Configure sensors ===
271	271
	382	+
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.
	385	+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.
	386	+
	387	+
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" %)(((
	391	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	392	+|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
	393	+|AT+CFGDEV|(% style="width:110px" %)(((
	394	+(((
281	281	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	396	+)))
282	282
	398	+(((
283	283	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	400	+)))
284	284
	402	+(((
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
	404	+)))
	405	+)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
287	287
	407	+
	408	+
	409	+
288	288	=== 3.3.3 Configure read commands for each sampling ===
289	289
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.
292		-)))
293	293
294	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.
296		-)))
	414	+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.
297	297
298		-(((
299	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.
300		-)))
301	301
302		-(((
303	303	This section describes how to achieve above goals.
304		-)))
305	305
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.
308		-)))
	420	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
309	309
310		-(((
311		-**Command from RS485-BL to Sensor:**
	422	+
	423	+(% style="color:#037691" %)**Each RS485 commands include two parts:**
	424	+
	425	+~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.
	426	+
	427	+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.
	428	+
	429	+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
	430	+
	431	+
	432	+After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	433	+
	434	+Below are examples for the how above AT Commands works.
	435	+
	436	+
	437	+(% 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:
	438	+
	439	+(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	440	+|(% style="width:496px" %)(((
	441	+(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
	442	+
	443	+**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	444	+
	445	+**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
312	312	)))
313	313
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.
	448	+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.
	449	+
	450	+In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	451	+
	452	+
	453	+(% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
	454	+
	455	+(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	456	+|(% style="width:510px" %)(((
	457	+**AT+DATACUTx=a,b,c**
	458	+
	459	+* **a: length for the return of AT+COMMAND**
	460	+* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
	461	+* **c: define the position for valid value.  **
316	316	)))
317	317
318		-(((
319		-**Handle return from sensors to RS485-BL**:
	464	+**Examples:**
	465	+
	466	+* (% style="color:#037691" %)**Grab bytes**
	467	+
	468	+(% 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" %)​
	469	+
	470	+
	471	+
	472	+* (% style="color:#037691" %)**Grab a section**
	473	+
	474	+(% 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" %)​
	475	+
	476	+
	477	+
	478	+* (% style="color:#037691" %)**Grab different sections**
	479	+
	480	+(% 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" %)​
	481	+
	482	+
	483	+
320	320	)))
321	321
	486	+=== 3.3.4 Compose the uplink payload ===
	487	+
	488	+
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**
324		-)))
	490	+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.**
325	325
326		-* (((
327		-**AT+DATACUT**
	492	+
328	328	)))
329	329
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.
332		-)))
	496	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
333	333
334		-* (((
335		-**AT+SEARCH**
	498	+
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.
	502	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
340	340	)))
341	341
342	342	(((
343		-**Define wait timeout:**
	506	+Final Payload is
344	344	)))
345	345
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
	510	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
348	348	)))
349	349
350	350	(((
351		-After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
	514	+Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
352	352	)))
353	353
354		-**Examples:**
	517	+(% 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" %)​
355	355
356		-Below are examples for the how above AT Commands works.
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:
	520	+(% style="color:#037691" %)**Examples: AT+DATAUP=1**
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**
363	363
364		-**xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
	523	+Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
365	365
366		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
367		-)))
	525	+Final Payload is
368	368
	527	+(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	528	+
	529	+
	530	+1. PAYVER: Defined by AT+PAYVER
	531	+1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	532	+1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	533	+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
	534	+
	535	+(% 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" %)​
	536	+
	537	+
	538	+So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	539	+
	540	+DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
	541	+
	542	+DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
	543	+
	544	+DATA3=the rest of Valid value of RETURN10= **30**
	545	+
	546	+
	547	+(% 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:**
	548	+
	549	+ ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	550	+
	551	+ * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	552	+
	553	+ * For US915 band, max 11 bytes for each uplink.
	554	+
	555	+ ~* For all other bands: max 51 bytes for each uplink.
	556	+
	557	+(% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
	558	+
	559	+(% 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)**
	560	+
	561	+
	562	+(% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
	563	+
	564	+1)When AT+MOD=1, if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.
	565	+
	566	+[[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"]]
	567	+
	568	+2)When AT+MOD=2, if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n 00s.
	569	+
	570	+[[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"]]
	571	+
	572	+
	573	+Below are the uplink payloads:
	574	+
	575	+(% 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" %)​
	576	+
	577	+
	578	+
	579	+=== 3.3.5 Uplink on demand ===
	580	+
	581	+
	582	+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.
	583	+
	584	+Downlink control command:
	585	+
	586	+**0x08 command**: Poll an uplink with current command set in RS485-LN.
	587	+
	588	+**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
	589	+
	590	+
	591	+
	592	+=== 3.3.6 Uplink on Interrupt ===
	593	+
	594	+
	595	+RS485-LN support external Interrupt uplink since hardware v1.2 release.
	596	+
	597	+(% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	598	+
	599	+Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
	600	+
	601	+
	602	+
	603	+== 3.4 Uplink Payload ==
	604	+
	605	+
	606	+(% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
	607	+
	608	+Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	609	+
	610	+
	611	+
	612	+== 3.5 Configure RS485-LN via AT or Downlink ==
	613	+
	614	+
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.
	616	+User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
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.
	620	+There are two kinds of Commands:
375	375	)))
376	376
377		-(((
378		-**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
	623	+* (((
	624	+(% 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]]
379	379	)))
380	380
381		-(% border="1" class="table-bordered" %)
382		-|(((
383		-**AT+SEARCHx=aa,xx xx xx xx xx**
	627	+* (((
	628	+(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
	629	+)))
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**
387		-
	631	+(((
388	388
389	389	)))
390	390
391		-**Examples:**
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
394	394
395		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	637	+=== 3.5.1 Common Commands ===
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]]
	640	+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]]
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
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**
	644	+=== 3.5.2 Downlink Response(Since firmware v1.4) ===
406	406
407		-[[image:1653269438444-278.png]]
408	408
409		-**AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
	647	+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.
410	410
411		-|(((
412		-**AT+DATACUTx=a,b,c**
	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"]](% title="Click and drag to resize" %)​
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.  **
417		-)))
	651	+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)
418	418
419		-Examples:
420	420
421		-* Grab bytes:
422	422
423		-[[image:1653269551753-223.png||height="311" width="717"]]
	655	+=== 3.5.3 Sensor related commands ===
424	424
425		-* Grab a section.
426	426
427		-[[image:1653269568276-930.png||height="325" width="718"]]
428	428
429		-* Grab different sections.
430	430
431		-[[image:1653269593172-426.png||height="303" width="725"]]
	660	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
432	432
433		-(% style="color:red" %)**Note:**
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.
	663	+(((
	664	+This command is used to configure the RS485 devices; they won't be used during sampling.
	665	+)))
436	436
437		-Example:
	667	+* (((
	668	+(% style="color:#037691" %)**AT Command**
438	438
439		-(% style="color:red" %)AT+COMMAND1=11 01 1E D0,0
	670	+(((
	671	+**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
	672	+)))
	673	+)))
440	440
441		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	675	+(((
	676	+
	677	+)))
442	442
443		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
	679	+* (((
	680	+(% style="color:#037691" %)**Downlink Payload**
	681	+)))
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
	683	+(((
	684	+Format: A8 MM NN XX XX XX XX YY
	685	+)))
446	446
447		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
	687	+(((
	688	+Where:
	689	+)))
448	448
449		-(% style="color:red" %)Valid payload after DataCUT command: 2e 30 58 5f 36
	691	+* (((
	692	+MM: 1: add CRC-16/MODBUS ; 0: no CRC
	693	+)))
	694	+* (((
	695	+NN: The length of RS485 command
	696	+)))
	697	+* (((
	698	+XX XX XX XX: RS485 command total NN bytes
	699	+)))
	700	+* (((
	701	+(((
	702	+YY: How many bytes will be uplink from the return of this RS485 command,
	703	+)))
450	450
451		-[[image:1653269618463-608.png]]
	705	+* (((
	706	+if YY=0, RS485-LN will execute the downlink command without uplink;
	707	+)))
	708	+* (((
	709	+if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	710	+)))
	711	+* (((
	712	+if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	713	+)))
	714	+)))
452	452
453		-=== 3.3.4 Compose the uplink payload ===
	716	+(((
	717	+
454	454
	719	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	720	+)))
	721	+
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.**
	723	+To connect a Modbus Alarm with below commands.
457	457	)))
458	458
	726	+* (((
	727	+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.
	728	+)))
	729	+
	730	+* (((
	731	+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.
	732	+)))
	733	+
459	459	(((
460		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0**
	735	+
	736	+
	737	+So if user want to use downlink command to control to RS485 Alarm, he can use:
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**.
	741	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
465	465	)))
466	466
467	467	(((
468		-Final Payload is
	745	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
469	469	)))
470	470
471	471	(((
472		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
	749	+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.
473	473	)))
474	474
475	475	(((
476		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	753	+
477	477	)))
478	478
479		-[[image:1653269759169-150.png||height="513" width="716"]]
	756	+(((
	757	+(% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
	758	+)))
480	480
481		-(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1**
	760	+(((
	761	+User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
	762	+)))
482	482
483		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	764	+(((
	765	+
	766	+)))
484	484
485		-Final Payload is
	768	+(((
	769	+(((
	770	+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**
	771	+)))
486	486
487		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	773	+
	774	+)))
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
	776	+(((
	777	+ (% 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" %)​
	778	+)))
494	494
495		-[[image:1653269916228-732.png||height="433" width="711"]]
496	496
497	497
498		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
499	499
500		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	783	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
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
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
	786	+(((
	787	+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.
	788	+)))
505	505
506		-Below are the uplink payloads:
	790	+* (((
	791	+(% style="color:#037691" %)**AT Command:**
507	507
508		-[[image:1653270130359-810.png]]
	793	+**AT+PAYVER:    **Set PAYVER field = 1
509	509
	795	+
	796	+)))
	797	+* (((
	798	+(% style="color:#037691" %)**Downlink Payload:**
	799	+)))
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:**
	801	+(((
	802	+**0xAE 01**  ~-~->  Set PAYVER field =  0x01
	803	+)))
512	512
513		- ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
	805	+(((
	806	+**0xAE 0F**   ~-~->  Set PAYVER field =  0x0F
	807	+)))
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).
	810	+1)Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)[[image:image-20220824145428-2.png||height="168" width="1300"]]
518	518
519		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
520	520
521		-=== 3.3.5 Uplink on demand ===
	813	+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.
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.
	815	+[[image:image-20220824145428-3.png||height="308" width="1200"]]
524	524
525		-Downlink control command:
526	526
527		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	818	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
528	528
529		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
530	530
	821	+(((
	822	+AT+COMMANDx or AT+DATACUTx
	823	+)))
531	531
	825	+(((
	826	+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"]].
	827	+)))
532	532
533		-1.
534		-11.
535		-111. Uplink on Interrupt
	829	+(((
	830	+
	831	+)))
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]]
	833	+* (((
	834	+(% style="color:#037691" %)**AT Command:**
	835	+)))
538	538
539		-AT+INTMOD=0  Disable Interrupt
	837	+**AT+COMMANDx:    **Configure RS485 read command to sensor.
540	540
541		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	839	+**AT+DATACUTx:        **Configure how to handle return from RS485 devices.
542	542
543		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
544	544
545		-AT+INTMOD=3  Interrupt trigger by rising edge.
	842	+* (((
	843	+(% style="color:#037691" %)**Downlink Payload:**
	844	+)))
546	546
	846	+(((
	847	+**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
547	547
548		-1.
549		-11. Uplink Payload
	849	+
	850	+)))
550	550
551		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
552		-|Value|(((
553		-Battery(mV)
	852	+(((
	853	+(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
554	554
555		-&
	855	+
	856	+)))
556	556
557		-Interrupt _Flag
558		-)))|(((
559		-PAYLOAD_VER
	858	+(((
	859	+Format: AF MM NN LL XX XX XX XX YY
	860	+)))
560	560
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.
	862	+(((
	863	+Where:
	864	+)))
563	563
564		-Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	866	+* (((
	867	+MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	868	+)))
	869	+* (((
	870	+NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	871	+)))
	872	+* (((
	873	+LL:  The length of AT+COMMAND or AT+DATACUT command
	874	+)))
	875	+* (((
	876	+XX XX XX XX: AT+COMMAND or AT+DATACUT command
	877	+)))
	878	+* (((
	879	+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.
	880	+)))
565	565
	882	+(((
	883	+
566	566
567		-function Decoder(bytes, port) {
	885	+**Example:**
	886	+)))
568	568
569		-~/~/Payload Formats of RS485-BL Deceive
	888	+(((
	889	+(% 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
	890	+)))
570	570
571		-return {
	892	+(((
	893	+(% 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**
	894	+)))
572	572
573		- ~/~/Battery,units:V
	896	+(((
	897	+(% 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**
	898	+)))
574	574
575		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
576	576
577		- ~/~/GPIO_EXTI
578	578
579		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
580	580
581		- ~/~/payload of version
	903	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
582	582
583		- Pay_ver:bytes[2],
584	584
585		- };
	906	+(((
	907	+**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]].
	908	+)))
586	586
587		- }
	910	+(((
	911	+This command is valid since v1.3 firmware version
	912	+)))
588	588
	914	+(((
	915	+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.
	916	+)))
589	589
	918	+(((
	919	+
	920	+)))
590	590
	922	+(((
	923	+**Example:**
	924	+)))
591	591
	926	+* (((
	927	+AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
	928	+)))
	929	+* (((
	930	+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.
	931	+)))
	932	+* (((
	933	+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.
592	592
	935	+
	936	+)))
593	593
	938	+(% 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" %)​
594	594
595		-TTN V3 uplink screen shot.
	940	+(% 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" %)​
596	596
597		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
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
603	603
604		-There are two kinds of Commands:
	945	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
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
607	607
608		-* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
	948	+(((
	949	+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.
	950	+)))
609	609
610		-1.
611		-11.
612		-111. Common Commands:
	952	+(((
	953	+Default value: 0, range:  0 ~~ 65 seconds
	954	+)))
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]]
	956	+* (((
	957	+(% style="color:#037691" %)** AT Command:**
615	615
	959	+**AT+CMDDLaa=hex(bb cc)*1000**
	960	+)))
616	616
617		-1.
618		-11.
619		-111. Sensor related commands:
	962	+(((
	963	+
620	620
621		-==== Choose Device Type (RS485 or TTL) ====
	965	+**Example:**
	966	+)))
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.
	968	+(((
	969	+**AT+CMDDL1=1000** to send the open time to 1000ms
	970	+)))
624	624
625		-* AT Command
	972	+(((
	973	+
	974	+)))
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.
	976	+* (((
	977	+(% style="color:#037691" %)** Downlink Payload:**
	978	+)))
628	628
629		-**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
	980	+(((
	981	+**0x AA aa bb cc**
	982	+)))
630	630
	984	+(((
	985	+Same as: AT+CMDDLaa=hex(bb cc)*1000
	986	+)))
631	631
632		-* Downlink Payload
	988	+(((
	989	+**Example:**
	990	+)))
633	633
634		-**0A aa**     à same as AT+MOD=aa
	992	+(((
	993	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	994	+)))
635	635
636	636
	997	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
637	637
638		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
639	639
640		-This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
	1000	+(((
	1001	+Define to use one uplink or multiple uplinks for the sampling.
	1002	+)))
641	641
642		-* AT Command
	1004	+(((
	1005	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
643	643
644		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	1007	+
	1008	+)))
645	645
646		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1010	+* (((
	1011	+(% style="color:#037691" %)** AT Command:**
647	647
	1013	+**AT+DATAUP=0**
648	648
	1015	+**AT+DATAUP=1**
649	649
650		-* Downlink Payload
	1017	+
	1018	+)))
651	651
652		-Format: A8 MM NN XX XX XX XX YY
	1020	+**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
653	653
654		-Where:
	1022	+Each uplink is sent to the server at 20-second intervals when segmented.
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:**
	1025	+* (((
	1026	+(% style="color:#037691" %)** Downlink Payload:**
	1027	+)))
662	662
663		-To connect a Modbus Alarm with below commands.
	1029	+**0xAD 00**  **~-~->** Same as AT+DATAUP=0
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.
	1031	+**0xAD 01**  **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
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:
	1034	+* (((
	1035	+(% style="color:#037691" %)** AT Command:**
	1036	+)))
670	670
671		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1038	+**AT+DATAUP=1,Timeout**
672	672
673		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
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.
	1041	+* (((
	1042	+(% style="color:#037691" %)** Downlink Payload:**
	1043	+)))
676	676
	1045	+**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
677	677
678		-**Example 2:**
	1047	+Each uplink is sent to the server at 20-second intervals when segmented.
679	679
680		-Check TTL Sensor return:
	1049	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
681	681
682		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
683	683
	1052	+(((
	1053	+Ask device to send an uplink immediately.
	1054	+)))
684	684
	1056	+* (((
	1057	+(% style="color:#037691" %)** AT Command:**
	1058	+)))
685	685
	1060	+(((
	1061	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1062	+)))
686	686
687		-==== Set Payload version ====
	1064	+(((
	1065	+
	1066	+)))
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.
	1068	+* (((
	1069	+(% style="color:#037691" %)** Downlink Payload:**
	1070	+)))
690	690
691		-* AT Command:
	1072	+(((
	1073	+**0x08 FF**, RS485-LN will immediately send an uplink.
	1074	+)))
692	692
693		-AT+PAYVER: Set PAYVER field = 1
694	694
695	695
696		-* Downlink Payload:
697	697
698		-0xAE 01   à Set PAYVER field =  0x01
	1079	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
699	699
700		-0xAE 0F   à Set PAYVER field =  0x0F
701	701
	1082	+(((
	1083	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
702	702
703		-==== Set RS485 Sampling Commands ====
	1085	+
	1086	+)))
704	704
705		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
	1088	+* (((
	1089	+(% style="color:#037691" %)** AT Command:**
	1090	+)))
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]].
	1092	+(((
	1093	+**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1094	+)))
708	708
	1096	+(((
	1097	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1098	+)))
709	709
710		-* AT Command:
	1100	+(((
	1101	+Example screen shot after clear all RS485 commands.
	1102	+)))
711	711
712		-AT+COMMANDx: Configure RS485 read command to sensor.
	1104	+(((
	1105	+
	1106	+)))
713	713
714		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1108	+(((
	1109	+The uplink screen shot is:
	1110	+)))
715	715
716		-AT+SEARCHx: Configure search command
	1112	+(% 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" %)​
717	717
718	718
719		-* Downlink Payload:
	1115	+* (((
	1116	+(% style="color:#037691" %)** Downlink Payload:**
	1117	+)))
720	720
721		-0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	1119	+(((
	1120	+**0x09 aa bb** same as AT+CMDEAR=aa,bb
	1121	+)))
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
726	726
727		-Where:
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.
	1126	+==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
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
	1129	+(((
	1130	+Set the Rs485 serial communication parameters:
738	738
739		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	1132	+
	1133	+)))
740	740
741		-**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
	1135	+* (((
	1136	+(% style="color:#037691" %)** AT Command:**
	1137	+)))
742	742
	1139	+(((
	1140	+* Set Baud Rate
	1141	+)))
743	743
744		-0xAB downlink command can be used for set AT+SEARCHx
	1143	+**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
745	745
746		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
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
	1146	+(((
	1147	+* Set UART Parity
	1148	+)))
750	750
751		-**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
	1150	+**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
752	752
753	753
754		-==== Fast command to handle MODBUS device ====
	1153	+(((
	1154	+* Set STOPBIT
	1155	+)))
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]].
	1157	+**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
757	757
758		-This command is valid since v1.3 firmware version
759	759
760	760
761		-AT+MBFUN has only two value:
	1161	+* (((
	1162	+(% style="color:#037691" %)** Downlink Payload:**
	1163	+)))
762	762
763		-* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
	1165	+(((
	1166	+**A7 01 aa bb**:  Same  AT+BAUDR=hex(aa bb)*100
	1167	+)))
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.
	1169	+(((
	1170	+**Example:**
	1171	+)))
766	766
767		-* AT+MBFUN=0: Disable Modbus fast reading.
	1173	+* (((
	1174	+A7 01 00 60   same as AT+BAUDR=9600
	1175	+)))
	1176	+* (((
	1177	+A7 01 04 80  same as AT+BAUDR=115200
	1178	+)))
768	768
769		-Example:
	1180	+(((
	1181	+A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1182	+)))
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.
	1184	+(((
	1185	+A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1186	+)))
774	774
775		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
776	776
	1189	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
777	777
778		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1191	+(((
	1192	+
	1193	+)))
779	779
	1195	+* (((
	1196	+(% style="color:#037691" %)** AT Command:**
	1197	+)))
780	780
781		-* Downlink Commands:
	1199	+**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
782	782
783		-A9 aa -à Same as AT+MBFUN=aa
	1201	+**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
784	784
785	785
786		-==== RS485 command timeout ====
	1204	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
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
	1207	+* (((
	1208	+(% style="color:#037691" %)** AT Command:**
	1209	+)))
791	791
	1211	+**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
792	792
793		-* AT Command:
	1213	+**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
794	794
795		-AT+CMDDLaa=hex(bb cc)
796	796
797		-Example:
	1216	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
798	798
799		-**AT+CMDDL1=1000** to send the open time to 1000ms
800	800
	1219	+* (((
	1220	+(% style="color:#037691" %)** AT Command:**
	1221	+)))
801	801
802		-* Downlink Payload:
	1223	+**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)
803	803
804		-0x AA aa bb cc
	1225	+**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.
805	805
806		-Same as: AT+CMDDLaa=hex(bb cc)
807	807
808		- Example:
	1228	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
809	809
810		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
811	811
	1231	+* (((
	1232	+(% style="color:#037691" %)** AT Command:**
	1233	+)))
812	812
813		-==== [[Uplink>>path:#downlink_A8]] payload mode ====
	1235	+ **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)
814	814
815		-Define to use one uplink or multiple uplinks for the sampling.
	1237	+ **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.
816	816
817		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
818	818
819		-* AT Command:
	1240	+* (((
	1241	+(% style="color:#037691" %)** Downlink Payload:**
	1242	+)))
820	820
821		-AT+DATAUP=0
	1244	+**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
822	822
823		-AT+DATAUP=1
824	824
	1247	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
825	825
826		-* Downlink Payload:
827	827
828		-0xAD 00   à Same as AT+DATAUP=0
	1250	+* (((
	1251	+(% style="color:#037691" %)** AT Command:**
	1252	+)))
829	829
830		-0xAD 01   à Same as AT+DATAUP=1
	1254	+**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.
831	831
	1256	+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.
832	832
833		-==== Manually trigger an Uplink ====
	1258	+[[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
834	834
835		-Ask device to send an uplink immediately.
	1260	+For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
836	836
837		-* Downlink Payload:
	1262	+[[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"]]
838	838
839		-0x08 FF, RS485-BL will immediately send an uplink.
	1264	+For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
840	840
841	841
842		-==== Clear RS485 Command ====
	1267	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
843	843
844		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
845	845
	1270	+* (((
	1271	+(% style="color:#037691" %)**Downlink Payload:**
846	846
847		-* AT Command:
	1273	+**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1274	+)))
848	848
849		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1276	+Example：
850	850
851		-Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1278	+[[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"]]
852	852
853		-Example screen shot after clear all RS485 commands.
	1280	+==== ====
854	854
	1282	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
855	855
856	856
857		-The uplink screen shot is:
	1285	+* (((
	1286	+(% style="color:#037691" %)** AT Command:**
	1287	+)))
858	858
859		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
	1289	+**~ ​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.
860	860
	1291	+**~ ​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.
861	861
862		-* Downlink Payload:
	1293	+ **AT+RXMODE=0,0  ** ~/~/Disable this mode (default)
863	863
864		-0x09 aa bb same as AT+CMDEAR=aa,bb
865	865
	1296	+* (((
	1297	+(% style="color:#037691" %)**Downlink Payload:**
	1298	+)))
866	866
867		-==== Set Serial Communication Parameters ====
	1300	+**A6 aa bb bb                   ** ~/~/same as AT+RXMODE=aa,bb
868	868
869		-Set the Rs485 serial communication parameters:
	1302	+[[image:image-20220824144240-1.png]]
870	870
871		-* AT Command:
872	872
873		-Set Baud Rate:
874	874
875		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1306	+== 3.6 Listening mode for RS485 network ==
876	876
877	877
878		-Set UART parity
	1309	+(((
	1310	+This feature support since firmware v1.4
	1311	+)))
879	879
880		-AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1313	+(((
	1314	+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.
881	881
	1316	+
	1317	+)))
882	882
883		-Set STOPBIT
	1319	+(% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
884	884
885		-AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1321	+(((
	1322	+To enable the listening mode, use can run the command AT+RXMODE.
	1323	+)))
886	886
	1325	+(((
	1326	+
	1327	+)))
887	887
888		-* Downlink Payload:
	1329	+(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
	1330	+|=(% style="width: 100px;" %)(((
	1331	+**Command example**
	1332	+)))|=(% style="width: 400px;" %)(((
	1333	+**Function**
	1334	+)))
	1335	+|(% style="width:100px" %)(((
	1336	+AT+RXMODE=1,10
	1337	+)))|(% style="width:400px" %)(((
	1338	+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.
	1339	+)))
	1340	+|(% style="width:100px" %)(((
	1341	+AT+RXMODE=2,500
	1342	+)))|(% style="width:400px" %)(((
	1343	+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
	1344	+)))
	1345	+|(% style="width:100px" %)(((
	1346	+AT+RXMODE=0,0
	1347	+)))|(% style="width:400px" %)(((
	1348	+Disable listening mode. This is the default settings.
	1349	+)))
	1350	+|(% style="width:100px" %)(((
	1351	+
	1352	+)))|(% style="width:400px" %)(((
	1353	+A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
	1354	+)))
889	889
890		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1356	+(((
	1357	+(% style="color:#037691" %)** Downlink Command:**
	1358	+)))
891	891
892		-Example:
	1360	+(((
	1361	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
	1362	+)))
893	893
894		-* A7 01 00 60   same as AT+BAUDR=9600
895		-* A7 01 04 80  same as AT+BAUDR=115200
	1364	+(((
	1365	+
	1366	+)))
896	896
897		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1368	+(((
	1369	+**Example**:
	1370	+)))
898	898
899		-A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
	1372	+(((
	1373	+The RS485-LN is set to AT+RXMODE=2,1000
	1374	+)))
900	900
	1376	+(((
	1377	+There is a two Modbus commands in the RS485 network as below:
	1378	+)))
901	901
902		-==== Control output power duration ====
	1380	+(((
	1381	+The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1382	+)))
903	903
904		-User can set the output power duration before each sampling.
	1384	+(((
	1385	+And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1386	+)))
905	905
906		-* AT Command:
	1388	+(((
	1389	+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
	1390	+)))
907	907
908		-Example:
	1392	+(((
	1393	+(% 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" %)​
	1394	+)))
909	909
910		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
	1396	+(((
	1397	+
	1398	+)))
911	911
912		-AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
	1400	+(((
	1401	+(((
	1402	+(% 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.**
	1403	+)))
	1404	+)))
913	913
914	914
915		-* LoRaWAN Downlink Command:
916	916
917		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1408	+== 3.7 Buttons ==
918	918
919		-07 02 aa bb  Same as AT+3V3T=(aa bb)
920	920
	1411	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1412	+|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
	1413	+|(% 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**
	1414	+|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
	1415	+|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
921	921
	1417	+== 3.8 LEDs ==
922	922
923	923
924		-1.
925		-11. Buttons
	1420	+(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1421	+|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
	1422	+|**PWR**|Always on if there is power
	1423	+|**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.
926	926
927		-|**Button**|**Feature**
928		-|**RST**|Reboot RS485-BL
	1425	+= 4. Case Study =
929	929
930		-1.
931		-11. +3V3 Output
932	932
933		-RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
	1428	+User can check this URL for some case studies: [[APP RS485 COMMUNICATE WITH SENSORS>>doc:Main.Application Note \: Communicate with Different Sensors ----- RS485-LN RS485-BL.WebHome]]
934	934
935		-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.
936	936
937	937
938		-The +3V3 output time can be controlled by AT Command.
	1432	+= 5. Use AT Command =
939	939
940		-**AT+3V3T=1000**
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.
	1435	+== 5.1 Access AT Command ==
943	943
944	944
945		-By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
	1438	+(((
	1439	+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.
	1440	+)))
946	946
	1442	+(% 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" %)​
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.
	1445	+(((
	1446	+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:
	1447	+)))
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.
	1449	+(% 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" %)​
954	954
955	955
956		-The 5V output time can be controlled by AT Command.
	1452	+(((
	1453	+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/]]
	1454	+)))
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.
961	961
	1458	+== 5.2 Common AT Command Sequence ==
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.
964	964
	1461	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
965	965
966	966
	1464	+If device has not joined network yet:
967	967
968		-1.
969		-11. LEDs
	1466	+* (% style="color:#037691" %)**AT+FDR**
	1467	+* (% style="color:#037691" %)**AT+NJM=0**
	1468	+* (% style="color:#037691" %)**ATZ**
970	970
971		-|**LEDs**|**Feature**
972		-|**LED1**|Blink when device transmit a packet.
	1470	+(((
	1471	+
973	973
974		-1.
975		-11. Switch Jumper
	1473	+If device already joined network:
976	976
977		-|**Switch Jumper**|**Feature**
978		-|**SW1**|(((
979		-ISP position: Upgrade firmware via UART
	1475	+* (% style="color:#037691" %)**AT+NJM=0**
	1476	+* (% style="color:#037691" %)**ATZ**
980	980
981		-Flash position: Configure device, check running status.
	1478	+
982	982	)))
983		-|**SW2**|(((
984		-5V position: set to compatible with 5v I/O.
985	985
986		-3.3v position: set to compatible with 3.3v I/O.,
987		-)))
988	988
989		-+3.3V: is always ON
990	990
991		-+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
	1483	+=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
992	992
993		-1. Case Study
994	994
995		-User can check this URL for some case studies.
	1486	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
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]]
	1488	+(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
998	998
	1490	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
999	999
	1492	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1000	1000
	1494	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1001	1001
1002		-1. Use AT Command
1003		-11. Access AT Command
	1496	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
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.
	1498	+(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1006	1006
1007		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
	1500	+(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1008	1008
	1502	+(% 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.
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:
	1504	+(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1011	1011
1012		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1013	1013
	1507	+(% style="color:red" %)**Note:**
1014	1014
	1509	+(((
	1510	+(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1511	+2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1512	+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.
	1513	+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
1015	1015
1016		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
	1515	+
	1516	+)))
1017	1017
	1518	+(% 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" %)​
1018	1018
1019	1019
1020		-1.
1021		-11. Common AT Command Sequence
1022		-111. Multi-channel ABP mode (Use with SX1301/LG308)
1023	1023
1024		-If device has not joined network yet:
	1522	+= 6. FAQ =
1025	1025
1026		-AT+FDR
1027	1027
1028		-AT+NJM=0
	1525	+== 6.1 How to upgrade the image? ==
1029	1029
1030		-ATZ
1031	1031
	1528	+(((
	1529	+The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
	1530	+)))
1032	1032
1033		-If device already joined network:
	1532	+* (((
	1533	+Support new features
	1534	+)))
	1535	+* (((
	1536	+For bug fix
	1537	+)))
	1538	+* (((
	1539	+Change LoRaWAN bands.
	1540	+)))
1034	1034
1035		-AT+NJM=0
	1542	+(((
	1543	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1544	+)))
1036	1036
1037		-ATZ
	1546	+(% 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"]]
1038	1038
1039		-1.
1040		-11.
1041		-111. Single-channel ABP mode (Use with LG01/LG02)
	1548	+(% title="Click and drag to resize" %)​
1042	1042
1043		-AT+FDR   Reset Parameters to Factory Default, Keys Reserve
	1550	+(((
	1551	+(% 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]].
	1552	+)))
1044	1044
1045		-AT+NJM=0 Set to ABP mode
	1554	+(((
	1555	+(% 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]].
	1556	+)))
1046	1046
1047		-AT+ADR=0 Set the Adaptive Data Rate Off
	1558	+(((
	1559	+(% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
	1560	+)))
1048	1048
1049		-AT+DR=5  Set Data Rate
	1562	+(((
	1563	+(((
	1564	+(((
	1565	+(% 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.
	1566	+)))
	1567	+)))
	1568	+)))
1050	1050
1051		-AT+TDC=60000  Set transmit interval to 60 seconds
1052	1052
1053		-AT+CHS=868400000 Set transmit frequency to 868.4Mhz
	1571	+(% 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" %)​
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
	1574	+(% 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" %)​
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
	1577	+(% 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" %)​
1062	1062
1063		-**Note:**
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
	1580	+(% 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:**
1069	1069
1070		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
	1582	+(% 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" %)​
1071	1071
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:
	1586	+== 6.2 How to change the LoRa Frequency Bands/Region? ==
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:
	1589	+User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1083	1083
1084		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
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/]].
	1593	+== 6.3 How many RS485-Slave can RS485-LN connects? ==
1089	1089
1090		-**Step3: **Open flashloader; choose the correct COM port to update.
1091	1091
	1596	+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"]].
1092	1092
1093		-|(((
1094		-HOLD PRO then press the RST button, SYS will be ON, then click next
1095		-)))
1096	1096
1097		-|(((
1098		-Board detected
1099		-)))
1100	1100
1101		-|(((
1102		-
1103		-)))
	1600	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
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]]
1106	1106
	1603	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1107	1107
	1605	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
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]]
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]]
	1609	+== 6.5 Can i use point to point communication for RS485-LN? ==
1113	1113
1114	1114
1115		-1.
1116		-11. How to change the LoRa Frequency Bands/Region?
	1612	+Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
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.
1119	1119
1120	1120
	1616	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
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]].
	1619	+[[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1126	1126
1127	1127
1128	1128
	1623	+= 7. Trouble Shooting =
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:
	1626	+== 7.1 Downlink doesn't work, how to solve it? ==
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
	1629	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1137	1137
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.
	1633	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
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
	1636	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1146	1146
1147	1147
1148		-1. Order Info
1149	1149
1150		-**Part Number: RS485-BL-XXX**
	1640	+= 8. Order Info =
1151	1151
1152		-**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
	1643	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1164	1164
1165		-1. Packing Info
	1645	+(% style="color:blue" %)**XXX:**
1166	1166
	1647	+* (% style="color:red" %)**EU433**(%%):  frequency bands EU433
	1648	+* (% style="color:red" %)**EU868**(%%):  frequency bands EU868
	1649	+* (% style="color:red" %)**KR920**(%%):  frequency bands KR920
	1650	+* (% style="color:red" %)**CN470**(%%):  frequency bands CN470
	1651	+* (% style="color:red" %)**AS923**(%%):  frequency bands AS923
	1652	+* (% style="color:red" %)**AU915**(%%):  frequency bands AU915
	1653	+* (% style="color:red" %)**US915**(%%):  frequency bands US915
	1654	+* (% style="color:red" %)**IN865**(%%):  frequency bands IN865
	1655	+* (% style="color:red" %)**RU864**(%%):  frequency bands RU864
	1656	+* (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
	1657	+
	1658	+= 9.Packing Info =
	1659	+
	1660	+
1167	1167	**Package Includes**:
1168	1168
1169		-* RS485-BL x 1
	1663	+* RS485-LN x 1
1170	1170	* Stick Antenna for LoRa RF part x 1
1171	1171	* Program cable x 1
1172	1172
...	...	@@ -1177,9 +1177,68 @@
1177	1177	* Package Size / pcs : 14.5 x 8 x 5 cm
1178	1178	* Weight / pcs : 170g
1179	1179
1180		-1. Support
	1674	+= 10. FCC Caution for RS485LN-US915 =
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]]
	1677	+(((
	1678	+Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1679	+)))
	1680	+
	1681	+(((
	1682	+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.
	1683	+)))
	1684	+
	1685	+(((
	1686	+
	1687	+)))
	1688	+
	1689	+(((
	1690	+(% style="color:red" %)**IMPORTANT NOTE:**
	1691	+)))
	1692	+
	1693	+(((
	1694	+(% 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:
	1695	+)))
	1696	+
	1697	+(((
	1698	+—Reorient or relocate the receiving antenna.
	1699	+)))
	1700	+
	1701	+(((
	1702	+—Increase the separation between the equipment and receiver.
	1703	+)))
	1704	+
	1705	+(((
	1706	+—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1707	+)))
	1708	+
	1709	+(((
	1710	+—Consult the dealer or an experienced radio/TV technician for help.
	1711	+)))
	1712	+
	1713	+(((
	1714	+
	1715	+)))
	1716	+
	1717	+(((
	1718	+(% style="color:red" %)**FCC Radiation Exposure Statement:**
	1719	+)))
	1720	+
	1721	+(((
	1722	+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.
	1723	+)))
	1724	+
	1725	+
	1726	+
	1727	+= 11. Support =
	1728	+
	1729	+
	1730	+* (((
	1731	+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.
	1732	+)))
	1733	+* (((
	1734	+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]].
	1735	+
	1736	+
	1737	+
	1738	+)))

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