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**
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9	9	**Table of Contents:**
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	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):
49	49	** Idle: 32mA@12v
50		-
51		-*
52	52	** 20dB Transmit: 65mA@12v
53	53
54		-**Interface for Model:**
55	55
	86	+
	87	+(% style="color:#037691" %)**Interface for Model:**
	88	+
56	56	* RS485
57	57	* Power Input 7~~ 24V DC.
58	58
59		-**LoRa Spec:**
60	60
	93	+
	94	+(% style="color:#037691" %)**LoRa Spec:**
	95	+
61	61	* Frequency Range:
62	62	** Band 1 (HF): 862 ~~ 1020 Mhz
63	63	** Band 2 (LF): 410 ~~ 528 Mhz
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75	75	* Preamble detection.
76	76	* 127 dB Dynamic Range RSSI.
77	77	* Automatic RF Sense and CAD with ultra-fast AFC.
78		-* Packet engine up to 256 bytes with CRC.
	113	+* Packet engine up to 256 bytes with CRC
79	79
	115	+
	116	+
	117	+
80	80	== 1.3 Features ==
81	81
	120	+
82	82	* LoRaWAN Class A & Class C protocol (default Class C)
83		-* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	122	+* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
84	84	* AT Commands to change parameters
85	85	* Remote configure parameters via LoRa Downlink
86	86	* Firmware upgradable via program port
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88	88	* Support Modbus protocol
89	89	* Support Interrupt uplink (Since hardware version v1.2)
90	90
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	132	+
91	91	== 1.4 Applications ==
92	92
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93	93	* Smart Buildings & Home Automation
94	94	* Logistics and Supply Chain Management
95	95	* Smart Metering
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97	97	* Smart Cities
98	98	* Smart Factory
99	99
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	145	+
100	100	== 1.5 Firmware Change log ==
101	101
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102	102	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
103	103
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	152	+
104	104	== 1.6 Hardware Change log ==
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106	106	(((
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108	108	v1.2: Add External Interrupt Pin.
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110	110	v1.0: Release
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113	113
114	114	= 2. Power ON Device =
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117	117	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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123	123	Once there is power, the RS485-LN will be on.
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125	125
126		-[[image:1653268091319-405.png]]
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128	128
129	129	= 3. Operation Mode =
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	192	+
131	131	== 3.1 How it works? ==
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133	133	(((
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134	134	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	+
137	137	== 3.2 Example to join LoRaWAN network ==
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139	139	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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141		-[[image:1653268155545-638.png||height="334" width="724"]]
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144	144	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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146	146	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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148		-[[image:1653268227651-549.png||height="592" width="720"]]
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150	150	(((
151		-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	+
152	152	)))
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155		-**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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163		-[[image:1652953462722-299.png]]
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165	165	(((
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167	167	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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171		-Add APP EUI in the application.
	254	+**Add APP EUI in the application.**
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175		-[[image:image-20220519174512-1.png]]
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177		-[[image:image-20220519174512-2.png||height="323" width="720"]]
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181		-[[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"]]
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183	183	You can also choose to create the device manually.
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185		-[[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" %)​
186	186
187		-Add APP KEY and DEV EUI
188	188
189		-[[image:1652953553383-907.png||height="514" width="724"]]
190	190
	275	+**Add APP KEY and DEV EUI**
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	278	+
	279	+
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192	192	(((
193		-**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	+
194	194	)))
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196		-[[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" %)​
197	197
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	290	+
198	198	== 3.3 Configure Commands to read data ==
199	199
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200	200	(((
201	201	(((
202		-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	+
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203	203	)))
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205	205	(((
206		-(% 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**
207	207	)))
	307	+
	308	+
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208	208	)))
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209	209
210		-=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	313	+=== 3.3.1 Configure UART settings for RS485 or TTL communication ===
211	211
	315	+
212	212	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:
213	213
214		-(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
215		-|(((
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	319	+(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	320	+|=(% style="width: 110px;" %)(((
216	216	**AT Commands**
217		-)))|(% style="width:285px" %)(((
	322	+)))|=(% style="width: 190px;" %)(((
218	218	**Description**
219		-)))|(% style="width:347px" %)(((
	324	+)))|=(% style="width: 190px;" %)(((
220	220	**Example**
221	221	)))
222		-|(((
	327	+|(% style="width:110px" %)(((
223	223	AT+BAUDR
224		-)))|(% style="width:285px" %)(((
	329	+)))|(% style="width:190px" %)(((
225	225	Set the baud rate (for RS485 connection). Default Value is: 9600.
226		-)))|(% style="width:347px" %)(((
	331	+)))|(% style="width:190px" %)(((
227	227	(((
228	228	AT+BAUDR=9600
229	229	)))
...	...	@@ -232,11 +232,11 @@
232	232	Options: (1200,2400,4800,14400,19200,115200)
233	233	)))
234	234	)))
235		-|(((
	340	+|(% style="width:110px" %)(((
236	236	AT+PARITY
237		-)))|(% style="width:285px" %)(((
	342	+)))|(% style="width:190px" %)(((
238	238	Set UART parity (for RS485 connection)
239		-)))|(% style="width:347px" %)(((
	344	+)))|(% style="width:190px" %)(((
240	240	(((
241	241	AT+PARITY=0
242	242	)))
...	...	@@ -245,9 +245,9 @@
245	245	Option: 0: no parity, 1: odd parity, 2: even parity
246	246	)))
247	247	)))
248		-|(((
	353	+|(% style="width:110px" %)(((
249	249	AT+STOPBIT
250		-)))|(% style="width:285px" %)(((
	355	+)))|(% style="width:190px" %)(((
251	251	(((
252	252	Set serial stopbit (for RS485 connection)
253	253	)))
...	...	@@ -255,7 +255,7 @@
255	255	(((
256	256
257	257	)))
258		-)))|(% style="width:347px" %)(((
	363	+)))|(% style="width:190px" %)(((
259	259	(((
260	260	AT+STOPBIT=0 for 1bit
261	261	)))
...	...	@@ -269,906 +269,1293 @@
269	269	)))
270	270	)))
271	271
	377	+
	378	+
	379	+
272	272	=== 3.3.2 Configure sensors ===
273	273
	382	+
274	274	(((
275	275	(((
276		-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	+
277	277	)))
278	278	)))
279	279
280		-(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
281		-|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
282		-|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	+(((
283	283	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
	396	+)))
284	284
	398	+(((
285	285	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
	400	+)))
286	286
	402	+(((
287	287	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
288		-)))|(% 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
289	289
	407	+
	408	+
	409	+
290	290	=== 3.3.3 Configure read commands for each sampling ===
291	291
292		-(((
293		-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.
294		-)))
295	295
296	296	(((
297		-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.
298		-)))
	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.
299	299
300		-(((
301	301	To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
302		-)))
303	303
304		-(((
305	305	This section describes how to achieve above goals.
306		-)))
307	307
308		-(((
309		-During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
310		-)))
	420	+During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
311	311
312		-(((
313		-**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**
314	314	)))
315	315
316		-(((
317		-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.  **
318	318	)))
319	319
320		-(((
321		-**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	+
322	322	)))
323	323
	486	+=== 3.3.4 Compose the uplink payload ===
	487	+
	488	+
324	324	(((
325		-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**
326		-)))
	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.**
327	327
328		-* (((
329		-**AT+DATACUT**
	492	+
330	330	)))
331	331
332	332	(((
333		-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.
334		-)))
	496	+(% style="color:#037691" %)**Examples: AT+DATAUP=0**
335	335
336		-* (((
337		-**AT+SEARCH**
	498	+
338	338	)))
339	339
340	340	(((
341		-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**.
342	342	)))
343	343
344	344	(((
345		-**Define wait timeout:**
	506	+Final Payload is
346	346	)))
347	347
348	348	(((
349		-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**
350	350	)))
351	351
352	352	(((
353		-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.
354	354	)))
355	355
356		-**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" %)​
357	357
358		-Below are examples for the how above AT Commands works.
359	359
360		-**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**
361	361
362		-(% border="1" class="table-bordered" %)
363		-|(((
364		-**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
365	365
366		-**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**.
367	367
368		-**m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
369		-)))
	525	+Final Payload is
370	370
	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	+
371	371	(((
372		-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
373	373	)))
374	374
375	375	(((
376		-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:
377	377	)))
378	378
379		-(((
380		-**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]]
381	381	)))
382	382
383		-(% border="1" class="table-bordered" %)
384		-|(((
385		-**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	+)))
386	386
387		-* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
388		-* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
389		-
	631	+(((
390	390
391	391	)))
392	392
393		-**Examples:**
394	394
395		-~1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
396	396
397		-If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
	637	+=== 3.5.1 Common Commands ===
398	398
399		-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**
400	400
401		-[[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]]
402	402
403		-2. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
404	404
405		-If we set AT+SEARCH1=2, 1E 56 34+31 00 49
406	406
407		-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) ===
408	408
409		-[[image:1653269438444-278.png]]
410	410
411		-**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.
412	412
413		-|(((
414		-**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" %)​
415	415
416		-* **a: length for the return of AT+COMMAND**
417		-* **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
418		-* **c: define the position for valid value.  **
419		-)))
	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)
420	420
421		-Examples:
422	422
423		-* Grab bytes:
424	424
425		-[[image:1653269551753-223.png||height="311" width="717"]]
	655	+=== 3.5.3 Sensor related commands ===
426	426
427		-* Grab a section.
428	428
429		-[[image:1653269568276-930.png||height="325" width="718"]]
430	430
431		-* Grab different sections.
432	432
433		-[[image:1653269593172-426.png||height="303" width="725"]]
	660	+==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
434	434
435		-(% style="color:red" %)**Note:**
436	436
437		-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	+)))
438	438
439		-Example:
	667	+* (((
	668	+(% style="color:#037691" %)**AT Command**
440	440
441		-(% 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	+)))
442	442
443		-(% style="color:red" %)AT+SEARCH1=1,1E 56 34
	675	+(((
	676	+
	677	+)))
444	444
445		-(% style="color:red" %)AT+DATACUT1=0,2,1~~5
	679	+* (((
	680	+(% style="color:#037691" %)**Downlink Payload**
	681	+)))
446	446
447		-(% 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	+)))
448	448
449		-(% style="color:red" %)String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
	687	+(((
	688	+Where:
	689	+)))
450	450
451		-(% 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	+)))
452	452
453		-[[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	+)))
454	454
455		-=== 3.3.4 Compose the uplink payload ===
	716	+(((
	717	+
456	456
	719	+(% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
	720	+)))
	721	+
457	457	(((
458		-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.
459	459	)))
460	460
	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	+
461	461	(((
462		-(% 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:
463	463	)))
464	464
465	465	(((
466		-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
467	467	)))
468	468
469	469	(((
470		-Final Payload is
	745	+(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
471	471	)))
472	472
473	473	(((
474		-(% 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.
475	475	)))
476	476
477	477	(((
478		-Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	753	+
479	479	)))
480	480
481		-[[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	+)))
482	482
483		-(% 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	+)))
484	484
485		-Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
	764	+(((
	765	+
	766	+)))
486	486
487		-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	+)))
488	488
489		-(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
	773	+
	774	+)))
490	490
491		-1. Battery Info (2 bytes): Battery voltage
492		-1. PAYVER (1 byte): Defined by AT+PAYVER
493		-1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
494		-1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
495		-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	+)))
496	496
497		-[[image:1653269916228-732.png||height="433" width="711"]]
498	498
499	499
500		-So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
501	501
502		-DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41
	783	+==== (% style="color:blue" %)**Set Payload version**(%%) ====
503	503
504		-DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20
505	505
506		-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	+)))
507	507
508		-Below are the uplink payloads:
	790	+* (((
	791	+(% style="color:#037691" %)**AT Command:**
509	509
510		-[[image:1653270130359-810.png]]
	793	+**AT+PAYVER:    **Set PAYVER field = 1
511	511
	795	+
	796	+)))
	797	+* (((
	798	+(% style="color:#037691" %)**Downlink Payload:**
	799	+)))
512	512
513		-(% 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	+)))
514	514
515		- ~* 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	+)))
516	516
517		- * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
518	518
519		- * 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"]]
520	520
521		- ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
522	522
523		-=== 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.
524	524
525		-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"]]
526	526
527		-Downlink control command:
528	528
529		-[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
	818	+==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
530	530
531		-[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
532	532
	821	+(((
	822	+AT+COMMANDx or AT+DATACUTx
	823	+)))
533	533
	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	+)))
534	534
535		-1.
536		-11.
537		-111. Uplink on Interrupt
	829	+(((
	830	+
	831	+)))
538	538
539		-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	+)))
540	540
541		-AT+INTMOD=0  Disable Interrupt
	837	+**AT+COMMANDx:    **Configure RS485 read command to sensor.
542	542
543		-AT+INTMOD=1  Interrupt trigger by rising or falling edge.
	839	+**AT+DATACUTx:        **Configure how to handle return from RS485 devices.
544	544
545		-AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
546	546
547		-AT+INTMOD=3  Interrupt trigger by rising edge.
	842	+* (((
	843	+(% style="color:#037691" %)**Downlink Payload:**
	844	+)))
548	548
	846	+(((
	847	+**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
549	549
550		-1.
551		-11. Uplink Payload
	849	+
	850	+)))
552	552
553		-|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
554		-|Value|(((
555		-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.
556	556
557		-&
	855	+
	856	+)))
558	558
559		-Interrupt _Flag
560		-)))|(((
561		-PAYLOAD_VER
	858	+(((
	859	+Format: AF MM NN LL XX XX XX XX YY
	860	+)))
562	562
563		-
564		-)))|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	+)))
565	565
566		-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	+)))
567	567
	882	+(((
	883	+
568	568
569		-function Decoder(bytes, port) {
	885	+**Example:**
	886	+)))
570	570
571		-~/~/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	+)))
572	572
573		-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	+)))
574	574
575		- ~/~/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	+)))
576	576
577		- BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
578	578
579		- ~/~/GPIO_EXTI
580	580
581		- EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
582	582
583		- ~/~/payload of version
	903	+==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
584	584
585		- Pay_ver:bytes[2],
586	586
587		- };
	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	+)))
588	588
589		- }
	910	+(((
	911	+This command is valid since v1.3 firmware version
	912	+)))
590	590
	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	+)))
591	591
	918	+(((
	919	+
	920	+)))
592	592
	922	+(((
	923	+**Example:**
	924	+)))
593	593
	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.
594	594
	935	+
	936	+)))
595	595
	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" %)​
596	596
597		-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" %)​
598	598
599		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
600	600
601		-1.
602		-11. Configure RS485-BL via AT or Downlink
603	603
604		-User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
605	605
606		-There are two kinds of Commands:
	945	+==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
607	607
608		-* **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
609	609
610		-* **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	+)))
611	611
612		-1.
613		-11.
614		-111. Common Commands:
	952	+(((
	953	+Default value: 0, range:  0 ~~ 65 seconds
	954	+)))
615	615
616		-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:**
617	617
	959	+**AT+CMDDLaa=hex(bb cc)*1000**
	960	+)))
618	618
619		-1.
620		-11.
621		-111. Sensor related commands:
	962	+(((
	963	+
622	622
623		-==== Choose Device Type (RS485 or TTL) ====
	965	+**Example:**
	966	+)))
624	624
625		-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	+)))
626	626
627		-* AT Command
	972	+(((
	973	+
	974	+)))
628	628
629		-**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	+)))
630	630
631		-**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	+)))
632	632
	984	+(((
	985	+Same as: AT+CMDDLaa=hex(bb cc)*1000
	986	+)))
633	633
634		-* Downlink Payload
	988	+(((
	989	+**Example:**
	990	+)))
635	635
636		-**0A aa**     à same as AT+MOD=aa
	992	+(((
	993	+**0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
	994	+)))
637	637
638	638
	997	+==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
639	639
640		-==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
641	641
642		-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	+)))
643	643
644		-* AT Command
	1004	+(((
	1005	+The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
645	645
646		-AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	1007	+
	1008	+)))
647	647
648		-m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
	1010	+* (((
	1011	+(% style="color:#037691" %)** AT Command:**
649	649
	1013	+**AT+DATAUP=0**
650	650
	1015	+**AT+DATAUP=1**
651	651
652		-* Downlink Payload
	1017	+
	1018	+)))
653	653
654		-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)
655	655
656		-Where:
	1022	+Each uplink is sent to the server at 20-second intervals when segmented.
657	657
658		-* MM: 1: add CRC-16/MODBUS ; 0: no CRC
659		-* NN: The length of RS485 command
660		-* XX XX XX XX: RS485 command total NN bytes
661		-* 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
662	662
663		-**Example 1:**
	1025	+* (((
	1026	+(% style="color:#037691" %)** Downlink Payload:**
	1027	+)))
664	664
665		-To connect a Modbus Alarm with below commands.
	1029	+**0xAD 00**  **~-~->** Same as AT+DATAUP=0
666	666
667		-* 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.
668	668
669		-* 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.
670	670
671		-So if user want to use downlink command to control to RS485 Alarm, he can use:
	1034	+* (((
	1035	+(% style="color:#037691" %)** AT Command:**
	1036	+)))
672	672
673		-**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
	1038	+**AT+DATAUP=1,Timeout**
674	674
675		-**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
676	676
677		-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	+)))
678	678
	1045	+**0xAD 01 00 00 14**  **~-~->** Same as AT+DATAUP=1，20000 ~/~/(00 00 14 is 20 seconds)
679	679
680		-**Example 2:**
	1047	+Each uplink is sent to the server at 20-second intervals when segmented.
681	681
682		-Check TTL Sensor return:
	1049	+==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
683	683
684		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
685	685
	1052	+(((
	1053	+Ask device to send an uplink immediately.
	1054	+)))
686	686
	1056	+* (((
	1057	+(% style="color:#037691" %)** AT Command:**
	1058	+)))
687	687
	1060	+(((
	1061	+No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
	1062	+)))
688	688
689		-==== Set Payload version ====
	1064	+(((
	1065	+
	1066	+)))
690	690
691		-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	+)))
692	692
693		-* AT Command:
	1072	+(((
	1073	+**0x08 FF**, RS485-LN will immediately send an uplink.
	1074	+)))
694	694
695		-AT+PAYVER: Set PAYVER field = 1
696	696
697	697
698		-* Downlink Payload:
699	699
700		-0xAE 01   à Set PAYVER field =  0x01
	1079	+==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
701	701
702		-0xAE 0F   à Set PAYVER field =  0x0F
703	703
	1082	+(((
	1083	+The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
704	704
705		-==== Set RS485 Sampling Commands ====
	1085	+
	1086	+)))
706	706
707		-AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
	1088	+* (((
	1089	+(% style="color:#037691" %)** AT Command:**
	1090	+)))
708	708
709		-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	+)))
710	710
	1096	+(((
	1097	+Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	1098	+)))
711	711
712		-* AT Command:
	1100	+(((
	1101	+Example screen shot after clear all RS485 commands.
	1102	+)))
713	713
714		-AT+COMMANDx: Configure RS485 read command to sensor.
	1104	+(((
	1105	+
	1106	+)))
715	715
716		-AT+DATACUTx: Configure how to handle return from RS485 devices.
	1108	+(((
	1109	+The uplink screen shot is:
	1110	+)))
717	717
718		-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" %)​
719	719
720	720
721		-* Downlink Payload:
	1115	+* (((
	1116	+(% style="color:#037691" %)** Downlink Payload:**
	1117	+)))
722	722
723		-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	+)))
724	724
725		-Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
726	726
727		-Format: AF MM NN LL XX XX XX XX YY
728	728
729		-Where:
730	730
731		-* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
732		-* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
733		-* LL: The length of AT+COMMAND or AT+DATACUT command
734		-* XX XX XX XX: AT+COMMAND or AT+DATACUT command
735		-* 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**(%%) ====
736	736
737		-Example:
738	738
739		-**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:
740	740
741		-**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
	1132	+
	1133	+)))
742	742
743		-**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	+)))
744	744
	1139	+(((
	1140	+* Set Baud Rate
	1141	+)))
745	745
746		-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
747	747
748		-Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
749	749
750		-* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
751		-* 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	+)))
752	752
753		-**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
754	754
755	755
756		-==== Fast command to handle MODBUS device ====
	1153	+(((
	1154	+* Set STOPBIT
	1155	+)))
757	757
758		-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
759	759
760		-This command is valid since v1.3 firmware version
761	761
762	762
763		-AT+MBFUN has only two value:
	1161	+* (((
	1162	+(% style="color:#037691" %)** Downlink Payload:**
	1163	+)))
764	764
765		-* 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	+)))
766	766
767		-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	+)))
768	768
769		-* 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	+)))
770	770
771		-Example:
	1180	+(((
	1181	+A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1182	+)))
772	772
773		-* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
774		-* 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.
775		-* 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	+)))
776	776
777		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
778	778
	1189	+==== (% style="color:blue" %)**Encrypted payload**(%%) ====
779	779
780		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
	1191	+(((
	1192	+
	1193	+)))
781	781
	1195	+* (((
	1196	+(% style="color:#037691" %)** AT Command:**
	1197	+)))
782	782
783		-* Downlink Commands:
	1199	+**AT+DECRYPT=1  **~/~/ The payload is uploaded without encryption
784	784
785		-A9 aa -à Same as AT+MBFUN=aa
	1201	+**AT+DECRYPT=0  **~/~/Encrypt when uploading payload (default)
786	786
787	787
788		-==== RS485 command timeout ====
	1204	+==== (% style="color:blue" %)**Get sensor value**(%%) ====
789	789
790		-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.
791	791
792		-Default value: 0, range:  0 ~~ 5 seconds
	1207	+* (((
	1208	+(% style="color:#037691" %)** AT Command:**
	1209	+)))
793	793
	1211	+**AT+GETSENSORVALUE=0  **~/~/ The serial port gets the reading of the current sensor
794	794
795		-* AT Command:
	1213	+**AT+GETSENSORVALUE=1  **~/~/The serial port gets the current sensor reading and uploads it.
796	796
797		-AT+CMDDLaa=hex(bb cc)
798	798
799		-Example:
	1216	+==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
800	800
801		-**AT+CMDDL1=1000** to send the open time to 1000ms
802	802
	1219	+* (((
	1220	+(% style="color:#037691" %)** AT Command:**
	1221	+)))
803	803
804		-* 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)
805	805
806		-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.
807	807
808		-Same as: AT+CMDDLaa=hex(bb cc)
809	809
810		- Example:
	1228	+==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
811	811
812		- 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
813	813
	1231	+* (((
	1232	+(% style="color:#037691" %)** AT Command:**
	1233	+)))
814	814
815		-==== [[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)
816	816
817		-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.
818	818
819		-The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
820	820
821		-* AT Command:
	1240	+* (((
	1241	+(% style="color:#037691" %)** Downlink Payload:**
	1242	+)))
822	822
823		-AT+DATAUP=0
	1244	+**0x21 00 01 ** ~/~/ Set  the DISMACANS=1
824	824
825		-AT+DATAUP=1
826	826
	1247	+==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
827	827
828		-* Downlink Payload:
829	829
830		-0xAD 00   à Same as AT+DATAUP=0
	1250	+* (((
	1251	+(% style="color:#037691" %)** AT Command:**
	1252	+)))
831	831
832		-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.
833	833
	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.
834	834
835		-==== 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"]]
836	836
837		-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.
838	838
839		-* 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"]]
840	840
841		-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.
842	842
843	843
844		-==== Clear RS485 Command ====
	1267	+==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
845	845
846		-The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
847	847
	1270	+* (((
	1271	+(% style="color:#037691" %)**Downlink Payload:**
848	848
849		-* AT Command:
	1273	+**26 01  ** ~/~/ Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
	1274	+)))
850	850
851		-**AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
	1276	+Example：
852	852
853		-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"]]
854	854
855		-Example screen shot after clear all RS485 commands.
	1280	+==== ====
856	856
	1282	+==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
857	857
858	858
859		-The uplink screen shot is:
	1285	+* (((
	1286	+(% style="color:#037691" %)** AT Command:**
	1287	+)))
860	860
861		-[[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.
862	862
	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.
863	863
864		-* Downlink Payload:
	1293	+ **AT+RXMODE=0,0  ** ~/~/Disable this mode (default)
865	865
866		-0x09 aa bb same as AT+CMDEAR=aa,bb
867	867
	1296	+* (((
	1297	+(% style="color:#037691" %)**Downlink Payload:**
	1298	+)))
868	868
869		-==== Set Serial Communication Parameters ====
	1300	+**A6 aa bb bb                   ** ~/~/same as AT+RXMODE=aa,bb
870	870
871		-Set the Rs485 serial communication parameters:
	1302	+[[image:image-20220824144240-1.png]]
872	872
873		-* AT Command:
874	874
875		-Set Baud Rate:
876	876
877		-AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1306	+== 3.6 Listening mode for RS485 network ==
878	878
879	879
880		-Set UART parity
	1309	+(((
	1310	+This feature support since firmware v1.4
	1311	+)))
881	881
882		-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.
883	883
	1316	+
	1317	+)))
884	884
885		-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" %)​
886	886
887		-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	+)))
888	888
	1325	+(((
	1326	+
	1327	+)))
889	889
890		-* 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	+)))
891	891
892		-A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
	1356	+(((
	1357	+(% style="color:#037691" %)** Downlink Command:**
	1358	+)))
893	893
894		-Example:
	1360	+(((
	1361	+**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
	1362	+)))
895	895
896		-* A7 01 00 60   same as AT+BAUDR=9600
897		-* A7 01 04 80  same as AT+BAUDR=115200
	1364	+(((
	1365	+
	1366	+)))
898	898
899		-A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
	1368	+(((
	1369	+**Example**:
	1370	+)))
900	900
901		-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	+)))
902	902
	1376	+(((
	1377	+There is a two Modbus commands in the RS485 network as below:
	1378	+)))
903	903
904		-==== 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	+)))
905	905
906		-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	+)))
907	907
908		-* 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	+)))
909	909
910		-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	+)))
911	911
912		-AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
	1396	+(((
	1397	+
	1398	+)))
913	913
914		-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	+)))
915	915
916	916
917		-* LoRaWAN Downlink Command:
918	918
919		-07 01 aa bb  Same as AT+5VT=(aa bb)
	1408	+== 3.7 Buttons ==
920	920
921		-07 02 aa bb  Same as AT+3V3T=(aa bb)
922	922
	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"]]
923	923
	1417	+== 3.8 LEDs ==
924	924
925	925
926		-1.
927		-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.
928	928
929		-|**Button**|**Feature**
930		-|**RST**|Reboot RS485-BL
	1425	+= 4. Case Study =
931	931
932		-1.
933		-11. +3V3 Output
934	934
935		-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]]
936	936
937		-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.
938	938
939	939
940		-The +3V3 output time can be controlled by AT Command.
	1432	+= 5. Use AT Command =
941	941
942		-**AT+3V3T=1000**
943	943
944		-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 ==
945	945
946	946
947		-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	+)))
948	948
	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" %)​
949	949
950		-1.
951		-11. +5V Output
952	952
953		-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	+)))
954	954
955		-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" %)​
956	956
957	957
958		-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	+)))
959	959
960		-**AT+5VT=1000**
961	961
962		-Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
963	963
	1458	+== 5.2 Common AT Command Sequence ==
964	964
965		-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.
966	966
	1461	+=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
967	967
968	968
	1464	+If device has not joined network yet:
969	969
970		-1.
971		-11. LEDs
	1466	+* (% style="color:#037691" %)**AT+FDR**
	1467	+* (% style="color:#037691" %)**AT+NJM=0**
	1468	+* (% style="color:#037691" %)**ATZ**
972	972
973		-|**LEDs**|**Feature**
974		-|**LED1**|Blink when device transmit a packet.
	1470	+(((
	1471	+
975	975
976		-1.
977		-11. Switch Jumper
	1473	+If device already joined network:
978	978
979		-|**Switch Jumper**|**Feature**
980		-|**SW1**|(((
981		-ISP position: Upgrade firmware via UART
	1475	+* (% style="color:#037691" %)**AT+NJM=0**
	1476	+* (% style="color:#037691" %)**ATZ**
982	982
983		-Flash position: Configure device, check running status.
	1478	+
984	984	)))
985		-|**SW2**|(((
986		-5V position: set to compatible with 5v I/O.
987	987
988		-3.3v position: set to compatible with 3.3v I/O.,
989		-)))
990	990
991		-+3.3V: is always ON
992	992
993		-+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) ===
994	994
995		-1. Case Study
996	996
997		-User can check this URL for some case studies.
	1486	+(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
998	998
999		-[[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
1000	1000
	1490	+(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1001	1001
	1492	+(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1002	1002
	1494	+(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1003	1003
1004		-1. Use AT Command
1005		-11. Access AT Command
	1496	+(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1006	1006
1007		-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)
1008	1008
1009		-[[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
1010	1010
	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.
1011	1011
1012		-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
1013	1013
1014		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
1015	1015
	1507	+(% style="color:red" %)**Note:**
1016	1016
	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
1017	1017
1018		-More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
	1515	+
	1516	+)))
1019	1019
	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" %)​
1020	1020
1021	1021
1022		-1.
1023		-11. Common AT Command Sequence
1024		-111. Multi-channel ABP mode (Use with SX1301/LG308)
1025	1025
1026		-If device has not joined network yet:
	1522	+= 6. FAQ =
1027	1027
1028		-AT+FDR
1029	1029
1030		-AT+NJM=0
	1525	+== 6.1 How to upgrade the image? ==
1031	1031
1032		-ATZ
1033	1033
	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	+)))
1034	1034
1035		-If device already joined network:
	1532	+* (((
	1533	+Support new features
	1534	+)))
	1535	+* (((
	1536	+For bug fix
	1537	+)))
	1538	+* (((
	1539	+Change LoRaWAN bands.
	1540	+)))
1036	1036
1037		-AT+NJM=0
	1542	+(((
	1543	+Below shows the hardware connection for how to upload an image to RS485-LN:
	1544	+)))
1038	1038
1039		-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"]]
1040	1040
1041		-1.
1042		-11.
1043		-111. Single-channel ABP mode (Use with LG01/LG02)
	1548	+(% title="Click and drag to resize" %)​
1044	1044
1045		-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	+)))
1046	1046
1047		-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	+)))
1048	1048
1049		-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	+)))
1050	1050
1051		-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	+)))
1052	1052
1053		-AT+TDC=60000  Set transmit interval to 60 seconds
1054	1054
1055		-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" %)​
1056	1056
1057		-AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1058	1058
1059		-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" %)​
1060	1060
1061		-AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1062	1062
1063		-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" %)​
1064	1064
1065		-**Note:**
1066	1066
1067		-1. Make sure the device is set to ABP mode in the IoT Server.
1068		-1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1069		-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.
1070		-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:**
1071	1071
1072		-[[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" %)​
1073	1073
1074	1074
1075		-1. FAQ
1076		-11. How to upgrade the image?
1077	1077
1078		-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? ==
1079	1079
1080		-* Support new features
1081		-* For bug fix
1082		-* Change LoRaWAN bands.
1083	1083
1084		-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.
1085	1085
1086		-[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1087	1087
1088		-**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]].
1089	1089
1090		-**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? ==
1091	1091
1092		-**Step3: **Open flashloader; choose the correct COM port to update.
1093	1093
	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"]].
1094	1094
1095		-|(((
1096		-HOLD PRO then press the RST button, SYS will be ON, then click next
1097		-)))
1098	1098
1099		-|(((
1100		-Board detected
1101		-)))
1102	1102
1103		-|(((
1104		-
1105		-)))
	1600	+== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1106	1106
1107		-[[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]]
1108	1108
	1603	+When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1109	1109
	1605	+Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1110	1110
1111		-[[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]]
1112	1112
1113	1113
1114		-[[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? ==
1115	1115
1116	1116
1117		-1.
1118		-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]].
1119	1119
1120		-User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1121	1121
1122	1122
	1616	+== 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1123	1123
1124		-1.
1125		-11. How many RS485-Slave can RS485-BL connects?
1126	1126
1127		-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/]]
1128	1128
1129	1129
1130	1130
	1623	+= 7. Trouble Shooting =
1131	1131
1132		-1. Trouble Shooting
1133		-11. Downlink doesn’t work, how to solve it?
1134	1134
1135		-Please see this link for debug:
	1626	+== 7.1 Downlink doesn't work, how to solve it? ==
1136	1136
1137		-[[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]]
1138	1138
	1629	+Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1139	1139
1140	1140
1141		-1.
1142		-11. Why I can’t join TTN V3 in US915 /AU915 bands?
1143	1143
1144		-It might about the channels mapping. Please see for detail.
	1633	+== 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1145	1145
1146		-[[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]]
1147	1147
	1636	+It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1148	1148
1149	1149
1150		-1. Order Info
1151	1151
1152		-**Part Number: RS485-BL-XXX**
	1640	+= 8. Order Info =
1153	1153
1154		-**XXX:**
1155	1155
1156		-* **EU433**: frequency bands EU433
1157		-* **EU868**: frequency bands EU868
1158		-* **KR920**: frequency bands KR920
1159		-* **CN470**: frequency bands CN470
1160		-* **AS923**: frequency bands AS923
1161		-* **AU915**: frequency bands AU915
1162		-* **US915**: frequency bands US915
1163		-* **IN865**: frequency bands IN865
1164		-* **RU864**: frequency bands RU864
1165		-* **KZ865: **frequency bands KZ865
	1643	+(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1166	1166
1167		-1. Packing Info
	1645	+(% style="color:blue" %)**XXX:**
1168	1168
	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	+
1169	1169	**Package Includes**:
1170	1170
1171		-* RS485-BL x 1
	1663	+* RS485-LN x 1
1172	1172	* Stick Antenna for LoRa RF part x 1
1173	1173	* Program cable x 1
1174	1174
...	...	@@ -1179,9 +1179,68 @@
1179	1179	* Package Size / pcs : 14.5 x 8 x 5 cm
1180	1180	* Weight / pcs : 170g
1181	1181
1182		-1. Support
	1674	+= 10. FCC Caution for RS485LN-US915 =
1183	1183
1184		-* 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.
1185		-* 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
1186	1186
1187		-[[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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