Wiki source code of RS485-LN – RS485 to LoRaWAN Converter User Manual

Version 61.47 by Xiaoling on 2022/06/25 16:09

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61.6	1	(% aria-label="1653266934636-343.png image widget" contenteditable="false" role="region" tabindex="-1" %)
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61.6	6	(% 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==\|\|height="15" role="presentation" title="Click and drag to move" width="15"]]
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58.22	20	Table of Contents:
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61.7	22	{{toc/}}
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61.6	25	(% aria-label="macro:toc widget" contenteditable="false" role="region" tabindex="-1" %)
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58.22	36	= 1.Introduction =
	37
	38	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
	39
	40	(((
	41	(((
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60.3	43
	44
58.22	45	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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	51	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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	57	(% 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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	63	(% 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.
	64	)))
	65
	66	(((
	67	(% 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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61.6	74	(% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png\|\|data-widget="image" height="419" 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" %)
58.22	75
	76
	77	== 1.2 Specifications ==
	78
	79
	80	Hardware System:
	81
	82	* STM32L072CZT6 MCU
	83	* SX1276/78 Wireless Chip
	84	* Power Consumption (exclude RS485 device):
	85	** Idle: 32mA@12v
	86	** 20dB Transmit: 65mA@12v
	87
	88	Interface for Model:
	89
	90	* RS485
	91	* Power Input 7~~ 24V DC.
	92
	93	LoRa Spec:
	94
	95	* Frequency Range:
	96	** Band 1 (HF): 862 ~~ 1020 Mhz
	97	** Band 2 (LF): 410 ~~ 528 Mhz
	98	* 168 dB maximum link budget.
	99	* +20 dBm - 100 mW constant RF output vs.
	100	* +14 dBm high efficiency PA.
	101	* Programmable bit rate up to 300 kbps.
	102	* High sensitivity: down to -148 dBm.
	103	* Bullet-proof front end: IIP3 = -12.5 dBm.
	104	* Excellent blocking immunity.
	105	* Low RX current of 10.3 mA, 200 nA register retention.
	106	* Fully integrated synthesizer with a resolution of 61 Hz.
	107	* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
	108	* Built-in bit synchronizer for clock recovery.
	109	* Preamble detection.
	110	* 127 dB Dynamic Range RSSI.
	111	* Automatic RF Sense and CAD with ultra-fast AFC.
	112	* Packet engine up to 256 bytes with CRC
	113
61.8	114
58.22	115	== 1.3 Features ==
	116
	117	* LoRaWAN Class A & Class C protocol (default Class C)
	118	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	119	* AT Commands to change parameters
	120	* Remote configure parameters via LoRa Downlink
	121	* Firmware upgradable via program port
	122	* Support multiply RS485 devices by flexible rules
	123	* Support Modbus protocol
	124	* Support Interrupt uplink (Since hardware version v1.2)
	125
61.9	126
58.22	127	== 1.4 Applications ==
	128
	129	* Smart Buildings & Home Automation
	130	* Logistics and Supply Chain Management
	131	* Smart Metering
	132	* Smart Agriculture
	133	* Smart Cities
	134	* Smart Factory
	135
61.10	136
58.22	137	== 1.5 Firmware Change log ==
	138
	139	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
	140
	141
	142	== 1.6 Hardware Change log ==
	143
	144	(((
	145	(((
	146	(((
	147	v1.2: Add External Interrupt Pin.
	148	)))
	149
	150	(((
	151	v1.0: Release
	152	)))
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	155	)))
	156	)))
	157
	158	= 2. Power ON Device =
	159
	160	(((
	161	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
	162
	163	* Power Source VIN to RS485-LN VIN+
	164	* Power Source GND to RS485-LN VIN-
	165
	166	(((
	167	Once there is power, the RS485-LN will be on.
	168	)))
	169
61.6	170	(% aria-label="1653268091319-405.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268091319-405.png\|\|data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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	173	)))
	174
	175	= 3. Operation Mode =
	176
	177	== 3.1 How it works? ==
	178
	179	(((
	180	(((
	181	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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	185	)))
	186
	187	== 3.2 Example to join LoRaWAN network ==
	188
	189	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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61.6	191	(% aria-label="1653268155545-638.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268155545-638.png\|\|data-widget="image" height="334" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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	194	(((
	195	(((
	196	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:
	197	)))
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	199	(((
	200	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
	201	)))
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61.6	203	(% aria-label="1653268227651-549.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268227651-549.png\|\|data-widget="image" height="592" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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58.22	206	(((
58.31	207	The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
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60.7	211	(% style="color:blue" %)Step 1(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
58.22	212	)))
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	214	(((
	215	Each RS485-LN is shipped with a sticker with unique device EUI:
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61.6	219	(% aria-label="1652953462722-299.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953462722-299.png\|\|data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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	224	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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60.6	228	Add APP EUI in the application.
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61.6	232	(% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png\|\|data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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61.6	234	(% aria-label="image-20220519174512-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-2.png\|\|data-widget="image" height="323" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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61.6	236	(% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png\|\|data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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61.6	238	(% 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"]](% title="Click and drag to resize" %)
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	240	You can also choose to create the device manually.
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61.6	242	(% 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" %)
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60.6	245
	246	Add APP KEY and DEV EUI
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61.6	248	(% aria-label="1652953553383-907.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953553383-907.png\|\|data-widget="image" height="514" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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	251	(((
60.7	252	(% style="color:blue" %)Step 2(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
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61.6	255	(% aria-label="1652953568895-172.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953568895-172.png\|\|data-widget="image" height="232" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==\|\|draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)
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	257
	258	== 3.3 Configure Commands to read data ==
	259
	260	(((
	261	(((
58.40	262	(((
60.11	263	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.
58.22	264	)))
58.40	265	)))
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58.40	268	(((
58.22	269	(% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1
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	275
	276	=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	277
	278	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:
	279
	280	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	281	\|=(% style="width: 110px;" %)(((
	282	AT Commands
	283	)))\|=(% style="width: 190px;" %)(((
	284	Description
	285	)))\|=(% style="width: 190px;" %)(((
	286	Example
	287	)))
	288	\|(% style="width:110px" %)(((
	289	AT+BAUDR
	290	)))\|(% style="width:190px" %)(((
	291	Set the baud rate (for RS485 connection). Default Value is: 9600.
	292	)))\|(% style="width:190px" %)(((
	293	(((
	294	AT+BAUDR=9600
	295	)))
	296
	297	(((
	298	Options: (1200,2400,4800,14400,19200,115200)
	299	)))
	300	)))
	301	\|(% style="width:110px" %)(((
	302	AT+PARITY
	303	)))\|(% style="width:190px" %)(((
	304	Set UART parity (for RS485 connection)
	305	)))\|(% style="width:190px" %)(((
	306	(((
	307	AT+PARITY=0
	308	)))
	309
	310	(((
	311	Option: 0: no parity, 1: odd parity, 2: even parity
	312	)))
	313	)))
	314	\|(% style="width:110px" %)(((
	315	AT+STOPBIT
	316	)))\|(% style="width:190px" %)(((
	317	(((
	318	Set serial stopbit (for RS485 connection)
	319	)))
	320
	321	(((
	322
	323	)))
	324	)))\|(% style="width:190px" %)(((
	325	(((
	326	AT+STOPBIT=0 for 1bit
	327	)))
	328
	329	(((
	330	AT+STOPBIT=1 for 1.5 bit
	331	)))
	332
	333	(((
	334	AT+STOPBIT=2 for 2 bits
	335	)))
	336	)))
	337
61.44	338
	339
	340
58.22	341	=== 3.3.2 Configure sensors ===
	342
	343	(((
	344	(((
	345	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.
	346	)))
	347	)))
	348
	349	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	350	\|=(% style="width: 110px;" %)AT Commands\|=(% style="width: 190px;" %)Description\|=(% style="width: 190px;" %)Example
	351	\|AT+CFGDEV\|(% style="width:110px" %)(((
58.54	352	(((
58.22	353	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
58.54	354	)))
58.22	355
58.54	356	(((
58.22	357	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
58.54	358	)))
58.22	359
58.54	360	(((
58.22	361	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
58.54	362	)))
58.22	363	)))\|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	364
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	366
	367
	368
58.22	369	=== 3.3.3 Configure read commands for each sampling ===
	370
	371	(((
	372	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.
	373
	374	To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	375
	376	This section describes how to achieve above goals.
	377
	378	During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	379
	380
60.11	381	(% style="color:#037691" %)Each RS485 commands include two parts:
58.22	382
	383	~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.
	384
	385	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.
	386
	387	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
	388
	389
	390	After we got the valid value from each RS485 commands, we need to combine them together with the command AT+DATAUP.
	391
	392	Below are examples for the how above AT Commands works.
	393
	394
60.11	395	(% 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:
58.22	396
	397	(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	398	\|(% style="width:496px" %)(((
60.11	399	(% style="color:#037691" %)AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m
58.22	400
	401	xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent
	402
	403	m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
	404	)))
	405
	406	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.
	407
	408	In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	409
	410
60.11	411	(% style="color:#037691" %)AT+DATACUTx (%%): This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
58.22	412
	413	(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	414	\|(% style="width:510px" %)(((
	415	AT+DATACUTx=a,b,c
	416
	417	* a: length for the return of AT+COMMAND
	418	* b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
	419	* c: define the position for valid value.
	420	)))
	421
	422	Examples:
	423
60.11	424	* (% style="color:#037691" %)Grab bytes
58.22	425
61.6	426	(% 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" %)
58.22	427
	428
60.11	429	* (% style="color:#037691" %)Grab a section
58.22	430
61.6	431	(% 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" %)
58.22	432
	433
60.11	434	* (% style="color:#037691" %)Grab different sections
58.22	435
61.6	436	(% 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" %)
58.22	437
60.9	438
58.22	439
	440	)))
	441
	442	=== 3.3.4 Compose the uplink payload ===
	443
	444	(((
	445	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.
	446
	447
	448	)))
	449
	450	(((
	451	(% style="color:#037691" %)Examples: AT+DATAUP=0
	452
	453
	454	)))
	455
	456	(((
	457	Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)A SIGNLE UPLINK.
	458	)))
	459
	460	(((
	461	Final Payload is
	462	)))
	463
	464	(((
	465	(% style="color:#4f81bd" %)Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
	466	)))
	467
	468	(((
	469	Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	470	)))
	471
61.6	472	(% 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" %)
58.22	473
	474
	475	(% style="color:#037691" %)Examples: AT+DATAUP=1
	476
	477
	478	Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)Multiply UPLINKs.
	479
	480	Final Payload is
	481
	482	(% style="color:#4f81bd" %)Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
	483
	484
	485	1. PAYVER: Defined by AT+PAYVER
	486	1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	487	1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	488	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
	489
61.6	490	(% 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" %)
58.22	491
	492
	493	So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	494
	495	DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= 20 20 0a 33 90 41 02 aa
	496
	497	DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= 05 81 0a 20 20 20 20 2d
	498
	499	DATA3=the rest of Valid value of RETURN10= 30
	500
	501
	502	(% 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:
	503
	504	~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	505
	506	* For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	507
	508	* For US915 band, max 11 bytes for each uplink.
	509
	510	~* For all other bands: max 51 bytes for each uplink.
	511
	512
	513	Below are the uplink payloads:
	514
61.6	515	(% 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" %)
58.22	516
	517
61.4	518
58.22	519	=== 3.3.5 Uplink on demand ===
	520
	521	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.
	522
	523	Downlink control command:
	524
	525	0x08 command: Poll an uplink with current command set in RS485-LN.
	526
	527	0xA8 command: Send a command to RS485-LN and uplink the output from sensors.
	528
	529
	530
	531	=== 3.3.6 Uplink on Interrupt ===
	532
	533	RS485-LN support external Interrupt uplink since hardware v1.2 release.
	534
61.6	535	(% 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" %)
58.22	536
	537	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.
	538
	539
	540	== 3.4 Uplink Payload ==
	541
	542
61.6	543	(% 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" %)
58.22	544
	545	Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	546
	547
60.9	548	== 3.5 Configure RS485-LN via AT or Downlink ==
58.22	549
	550	(((
	551	User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
	552	)))
	553
	554	(((
	555	There are two kinds of Commands:
	556	)))
	557
	558	* (((
58.31	559	(% 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]]
58.22	560	)))
	561
	562	* (((
	563	(% style="color:#4f81bd" %)Sensor Related Commands(%%): These commands are special designed for RS485-LN. User can see these commands below:
	564	)))
	565
	566	(((
	567
	568	)))
	569
	570
	571	=== 3.5.1 Common Commands ===
	572
58.31	573	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]]
58.22	574
	575
	576	=== 3.5.2 Sensor related commands ===
	577
	578	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.
	579
61.6	580	(% 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"]](% style="background:url(~"http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png~") rgba(220, 220, 220, 0.5); left:0px; top:-15px" %)[[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" %)
58.22	581
	582	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)
	583
	584
	585	=== 3.5.3 Sensor related commands ===
	586
	587
	588
	589
61.16	590	==== (% style="color:#037691" %)RS485 Debug Command(%%) ====
58.22	591
	592	(((
	593	This command is used to configure the RS485 devices; they won’t be used during sampling.
	594	)))
	595
	596	* (((
61.16	597	(% style="color:#037691" %)AT Command
58.22	598
61.21	599	(((
	600	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
58.22	601	)))
61.21	602	)))
58.22	603
	604	(((
61.21	605
58.22	606	)))
	607
	608	* (((
61.5	609	(% style="color:#037691" %)Downlink Payload
58.22	610	)))
	611
	612	(((
	613	Format: A8 MM NN XX XX XX XX YY
	614	)))
	615
	616	(((
	617	Where:
	618	)))
	619
	620	* (((
	621	MM: 1: add CRC-16/MODBUS ; 0: no CRC
	622	)))
	623	* (((
	624	NN: The length of RS485 command
	625	)))
	626	* (((
	627	XX XX XX XX: RS485 command total NN bytes
	628	)))
	629	* (((
	630	(((
	631	YY: How many bytes will be uplink from the return of this RS485 command,
	632	)))
	633
	634	* (((
	635	if YY=0, RS485-LN will execute the downlink command without uplink;
	636	)))
	637	* (((
	638	if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	639	)))
	640	* (((
	641	if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	642	)))
	643	)))
	644
	645	(((
61.22	646
	647
	648	Example 1 ~-~-> Configure without ask for uplink (YY=0)
58.22	649	)))
	650
	651	(((
	652	To connect a Modbus Alarm with below commands.
	653	)))
	654
	655	* (((
	656	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.
	657	)))
	658
	659	* (((
	660	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.
	661	)))
	662
	663	(((
61.24	664
	665
58.22	666	So if user want to use downlink command to control to RS485 Alarm, he can use:
	667	)))
	668
	669	(((
	670	(% style="color:#4f81bd" %)A8 01 06 0A 05 00 04 00 01 00(%%): to activate the RS485 Alarm
	671	)))
	672
	673	(((
	674	(% style="color:#4f81bd" %)A8 01 06 0A 05 00 04 00 00 00(%%): to deactivate the RS485 Alarm
	675	)))
	676
	677	(((
	678	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.
	679	)))
	680
	681	(((
	682
	683	)))
	684
	685	(((
61.24	686	Example 2 ~-~-> Configure with requesting uplink and original downlink command (YY=FF)
58.22	687	)))
	688
	689	(((
	690	User in IoT server send a downlink command: (% style="color:#4f81bd" %)A8 01 06 0A 08 00 04 00 01 YY
	691	)))
	692
	693	(((
	694
	695	)))
	696
	697	(((
61.24	698	(((
	699	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
58.22	700	)))
	701
61.24	702
58.22	703	)))
	704
	705	(((
61.6	706	(% 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" %)
58.22	707	)))
	708
	709
	710
	711
61.16	712	==== (% style="color:blue" %)Set Payload version(%%) ====
58.22	713
	714	(((
60.11	715	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.
58.22	716	)))
	717
	718	* (((
61.16	719	(% style="color:#037691" %)AT Command:
58.22	720
61.33	721	AT+PAYVER: Set PAYVER field = 1
61.16	722
	723
58.22	724	)))
	725	* (((
61.16	726	(% style="color:#037691" %)Downlink Payload:
58.22	727	)))
	728
	729	(((
61.17	730	0xAE 01 ~-~-> Set PAYVER field = 0x01
58.22	731	)))
	732
	733	(((
61.17	734	0xAE 0F ~-~-> Set PAYVER field = 0x0F
58.22	735	)))
	736
	737
	738
	739
61.16	740	==== (% style="color:blue" %)Set RS485 Sampling Commands(%%) ====
58.22	741
	742	(((
	743	AT+COMMANDx or AT+DATACUTx
	744	)))
	745
	746	(((
58.31	747	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"]].
58.22	748	)))
	749
	750	(((
	751
	752	)))
	753
	754	* (((
61.16	755	(% style="color:#037691" %)AT Command:
58.22	756	)))
	757
61.33	758	AT+COMMANDx: Configure RS485 read command to sensor.
58.22	759
61.33	760	AT+DATACUTx: Configure how to handle return from RS485 devices.
61.12	761
58.22	762
	763	* (((
61.16	764	(% style="color:#037691" %)Downlink Payload:
58.22	765	)))
	766
	767	(((
	768	0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	769	)))
	770
	771	(((
	772	(% style="color:red" %)Note(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
	773	)))
	774
	775	(((
	776	Format: AF MM NN LL XX XX XX XX YY
	777	)))
	778
	779	(((
	780	Where:
	781	)))
	782
	783	* (((
	784	MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	785	)))
	786	* (((
	787	NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	788	)))
	789	* (((
	790	LL: The length of AT+COMMAND or AT+DATACUT command
	791	)))
	792	* (((
	793	XX XX XX XX: AT+COMMAND or AT+DATACUT command
	794	)))
	795	* (((
60.11	796	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.
58.22	797	)))
	798
	799	(((
61.25	800
	801
58.22	802	Example:
	803	)))
	804
	805	(((
	806	(% 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
	807	)))
	808
	809	(((
	810	(% 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
	811	)))
	812
	813	(((
	814	(% 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
	815	)))
	816
	817
	818
	819
61.16	820	==== (% style="color:blue" %)Fast command to handle MODBUS device(%%) ====
58.22	821
	822	(((
61.28	823	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]].
58.22	824	)))
	825
	826	(((
	827	This command is valid since v1.3 firmware version
	828	)))
	829
	830	(((
	831	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.
	832	)))
	833
	834	(((
	835
	836	)))
	837
	838	(((
	839	Example:
	840	)))
	841
	842	* (((
61.26	843	AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
58.22	844	)))
	845	* (((
61.26	846	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.
58.22	847	)))
	848	* (((
61.26	849	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.
	850
	851
58.22	852	)))
	853
61.27	854	(% 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" %)
58.22	855
61.27	856	(% 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" %)
58.22	857
	858
	859
	860
61.16	861	==== (% style="color:blue" %)RS485 command timeout(%%) ====
58.22	862
	863	(((
	864	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.
	865	)))
	866
	867	(((
	868	Default value: 0, range: 0 ~~ 65 seconds
	869	)))
	870
	871	* (((
61.16	872	(% style="color:#037691" %) AT Command:
58.22	873
	874	*AT+CMDDLaa=hex(bb cc)1000**
	875	)))
	876
	877	(((
61.28	878
	879
58.22	880	Example:
	881	)))
	882
	883	(((
	884	AT+CMDDL1=1000 to send the open time to 1000ms
	885	)))
	886
	887	(((
	888
	889	)))
	890
	891	* (((
61.16	892	(% style="color:#037691" %) Downlink Payload:
58.22	893	)))
	894
	895	(((
	896	0x AA aa bb cc
	897	)))
	898
	899	(((
	900	Same as: AT+CMDDLaa=hex(bb cc)*1000
	901	)))
	902
	903	(((
61.29	904	Example:
58.22	905	)))
	906
	907	(((
61.29	908	0xAA 01 00 01 ~-~-> Same as AT+CMDDL1=1000 ms
58.22	909	)))
	910
	911
	912
	913
61.16	914	==== (% style="color:blue" %)Uplink payload mode(%%) ====
58.22	915
	916	(((
	917	Define to use one uplink or multiple uplinks for the sampling.
	918	)))
	919
	920	(((
58.31	921	The use of this command please see: [[Compose Uplink payload>>\|\|anchor="H3.3.4Composetheuplinkpayload"]]
61.30	922
	923
58.22	924	)))
	925
	926	* (((
61.16	927	(% style="color:#037691" %) AT Command:
58.22	928	)))
	929
	930	AT+DATAUP=0
	931
	932	AT+DATAUP=1
	933
	934
	935	* (((
61.16	936	(% style="color:#037691" %) Downlink Payload:
58.22	937	)))
	938
	939	(((
	940	0xAD 00 ~-~-> Same as AT+DATAUP=0
	941	)))
	942
	943	(((
	944	0xAD 01 ~-~-> Same as AT+DATAUP=1
	945	)))
	946
	947
	948
	949
61.16	950	==== (% style="color:blue" %)Manually trigger an Uplink(%%) ====
58.22	951
	952	(((
	953	Ask device to send an uplink immediately.
	954	)))
	955
	956	* (((
61.16	957	(% style="color:#037691" %) AT Command:
58.22	958	)))
	959
	960	(((
58.31	961	No AT Command for this, user can press the [[ACT button>>\|\|anchor="H3.7Buttons"]] for 1 second for the same.
58.22	962	)))
	963
	964	(((
	965
	966	)))
	967
	968	* (((
61.16	969	(% style="color:#037691" %) Downlink Payload:
58.22	970	)))
	971
	972	(((
	973	0x08 FF, RS485-LN will immediately send an uplink.
	974	)))
	975
	976
	977
	978
61.16	979	==== (% style="color:blue" %)Clear RS485 Command(%%) ====
58.22	980
	981	(((
	982	The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
61.30	983
	984
58.22	985	)))
	986
	987	* (((
61.16	988	(% style="color:#037691" %) AT Command:
58.22	989	)))
	990
	991	(((
	992	AT+CMDEAR=mm,nn mm: start position of erase ,nn: stop position of erase
	993	)))
	994
	995	(((
	996	Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	997	)))
	998
	999	(((
	1000	Example screen shot after clear all RS485 commands.
	1001	)))
	1002
	1003	(((
	1004
	1005	)))
	1006
	1007	(((
	1008	The uplink screen shot is:
	1009	)))
	1010
61.6	1011	(% 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" %)
58.22	1012
	1013
	1014	* (((
61.16	1015	(% style="color:#037691" %) Downlink Payload:
58.22	1016	)))
	1017
	1018	(((
	1019	0x09 aa bb same as AT+CMDEAR=aa,bb
	1020	)))
	1021
	1022
	1023
	1024
61.16	1025	==== (% style="color:blue" %)Set Serial Communication Parameters(%%) ====
58.22	1026
	1027	(((
	1028	Set the Rs485 serial communication parameters:
	1029	)))
	1030
	1031	* (((
61.16	1032	(% style="color:#037691" %) AT Command:
58.22	1033	)))
	1034
	1035	(((
61.30	1036
	1037
	1038	* Set Baud Rate
58.22	1039	)))
	1040
	1041	AT+BAUDR=9600 ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1042
61.15	1043
58.22	1044	(((
61.30	1045	* Set UART Parity
58.22	1046	)))
	1047
	1048	AT+PARITY=0 ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1049
61.15	1050
58.22	1051	(((
61.30	1052	* Set STOPBIT
58.22	1053	)))
	1054
	1055	AT+STOPBIT=0 ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1056
	1057
61.30	1058
58.22	1059	* (((
61.16	1060	(% style="color:#037691" %) Downlink Payload:
58.22	1061	)))
	1062
	1063	(((
61.31	1064	A7 01 aa bb: Same AT+BAUDR=hex(aa bb)*100
58.22	1065	)))
	1066
	1067	(((
	1068	Example:
	1069	)))
	1070
	1071	* (((
	1072	A7 01 00 60 same as AT+BAUDR=9600
	1073	)))
	1074	* (((
	1075	A7 01 04 80 same as AT+BAUDR=115200
	1076	)))
	1077
	1078	(((
61.31	1079	A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02)
58.22	1080	)))
	1081
	1082	(((
61.31	1083	A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02)
58.22	1084	)))
	1085
	1086
	1087
	1088
	1089	== 3.6 Listening mode for RS485 network ==
	1090
	1091	(((
	1092	This feature support since firmware v1.4
	1093	)))
	1094
	1095	(((
	1096	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.
	1097	)))
	1098
61.6	1099	(% 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" %)
58.22	1100
	1101	(((
	1102	To enable the listening mode, use can run the command AT+RXMODE.
	1103	)))
	1104
	1105	(((
	1106
	1107	)))
	1108
	1109	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
58.44	1110	\|=(% style="width: 100px;" %)(((
	1111	Command example
	1112	)))\|=(% style="width: 400px;" %)(((
58.22	1113	Function
	1114	)))
58.44	1115	\|(% style="width:100px" %)(((
58.22	1116	AT+RXMODE=1,10
58.44	1117	)))\|(% style="width:400px" %)(((
58.22	1118	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.
	1119	)))
58.44	1120	\|(% style="width:100px" %)(((
58.22	1121	AT+RXMODE=2,500
58.44	1122	)))\|(% style="width:400px" %)(((
58.22	1123	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
	1124	)))
58.44	1125	\|(% style="width:100px" %)(((
58.22	1126	AT+RXMODE=0,0
58.44	1127	)))\|(% style="width:400px" %)(((
58.22	1128	Disable listening mode. This is the default settings.
	1129	)))
58.44	1130	\|(% style="width:100px" %)(((
58.22	1131
58.44	1132	)))\|(% style="width:400px" %)(((
58.22	1133	A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 \| cc)
	1134	)))
	1135
	1136	(((
61.33	1137	(% style="color:#037691" %) Downlink Command:
58.22	1138	)))
	1139
	1140	(((
	1141	0xA6 aa bb cc same as AT+RXMODE=aa,(bb<<8 \| cc)
	1142	)))
	1143
	1144	(((
	1145
	1146	)))
	1147
	1148	(((
	1149	Example:
	1150	)))
	1151
	1152	(((
	1153	The RS485-LN is set to AT+RXMODE=2,1000
	1154	)))
	1155
	1156	(((
	1157	There is a two Modbus commands in the RS485 network as below:
	1158	)))
	1159
	1160	(((
	1161	The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1162	)))
	1163
	1164	(((
	1165	And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1166	)))
	1167
	1168	(((
	1169	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
	1170	)))
	1171
	1172	(((
61.6	1173	(% 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" %)
58.22	1174	)))
	1175
	1176	(((
	1177
	1178	)))
	1179
	1180	(((
58.49	1181	(((
58.22	1182	(% 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.
	1183	)))
58.49	1184	)))
58.22	1185
	1186
	1187	== 3.7 Buttons ==
	1188
	1189
59.12	1190	(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1191	\|=(% style="width: 50px;" %)Button\|=(% style="width: 361px;" %)Feature
	1192	\|(% 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
	1193	\|(% style="width:50px" %)RST\|(% style="width:361px" %)Reboot RS485
	1194	\|(% style="width:50px" %)PRO\|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>\|\|anchor="H6.1Howtoupgradetheimage3F"]]
58.22	1195
61.42	1196
61.45	1197
	1198
58.22	1199	== 3.8 LEDs ==
	1200
58.36	1201
58.32	1202	(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
58.38	1203	\|=(% style="width: 50px;" %)LEDs\|=(% style="width: 380px;" %)Feature
58.36	1204	\|PWR\|Always on if there is power
	1205	\|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.
58.22	1206
61.42	1207
61.45	1208
	1209
58.22	1210	= 4. Case Study =
	1211
58.31	1212	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]]
58.22	1213
	1214
	1215	= 5. Use AT Command =
	1216
	1217	== 5.1 Access AT Command ==
	1218
58.25	1219	(((
60.11	1220	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.
58.25	1221	)))
58.22	1222
61.6	1223	(% 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" %)
58.22	1224
	1225
58.25	1226	(((
60.11	1227	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:
58.25	1228	)))
58.22	1229
61.6	1230	(% 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" %)
58.22	1231
	1232
58.26	1233	(((
58.31	1234	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/]]
58.26	1235	)))
58.22	1236
	1237
58.27	1238
58.22	1239	== 5.2 Common AT Command Sequence ==
	1240
61.42	1241
58.22	1242	=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
	1243
	1244	If device has not joined network yet:
	1245
61.37	1246	* (% style="color:#037691" %)AT+FDR
	1247	* (% style="color:#037691" %)AT+NJM=0
	1248	* (% style="color:#037691" %)ATZ
58.22	1249
	1250	(((
61.42	1251
	1252
58.22	1253	If device already joined network:
	1254
61.37	1255	* (% style="color:#037691" %)AT+NJM=0
	1256	* (% style="color:#037691" %)ATZ
58.22	1257
61.36	1258
58.22	1259	)))
	1260
	1261
	1262	=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
	1263
	1264
61.39	1265	(% style="background-color:#dcdcdc" %)AT+FDR (%%) Reset Parameters to Factory Default, Keys Reserve
58.22	1266
61.39	1267	(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%) Set to ABP mode
58.22	1268
61.39	1269	(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%) Set the Adaptive Data Rate Off
58.22	1270
61.39	1271	(% style="background-color:#dcdcdc" %)AT+DR=5 (%%) Set Data Rate
58.22	1272
61.39	1273	(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
58.22	1274
61.39	1275	(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
58.22	1276
61.39	1277	(% style="background-color:#dcdcdc" %)AT+RX2FQ=868400000 (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
58.22	1278
61.39	1279	(% style="background-color:#dcdcdc" %)AT+RX2DR=5 (%%) Set RX2DR to match the downlink DR from server. see below
58.22	1280
61.39	1281	(% 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.
58.22	1282
61.39	1283	(% style="background-color:#dcdcdc" %)ATZ (%%) Reset MCU
58.22	1284
	1285
	1286	(% style="color:red" %)Note:
	1287
58.52	1288	(((
58.22	1289	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1290	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1291	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.
	1292	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
58.52	1293	)))
58.22	1294
61.6	1295	(% 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" %)
58.22	1296
	1297
	1298	= 6. FAQ =
	1299
	1300	== 6.1 How to upgrade the image? ==
	1301
58.34	1302	(((
58.22	1303	The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
58.34	1304	)))
58.22	1305
58.34	1306	* (((
	1307	Support new features
	1308	)))
	1309	* (((
	1310	For bug fix
	1311	)))
	1312	* (((
	1313	Change LoRaWAN bands.
	1314	)))
58.22	1315
58.34	1316	(((
58.22	1317	Below shows the hardware connection for how to upload an image to RS485-LN:
58.34	1318	)))
58.22	1319
61.6	1320	(% 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"]](% title="Click and drag to resize" %)
58.22	1321
58.51	1322	(((
61.47	1323	(% 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]].
58.51	1324	)))
58.22	1325
58.51	1326	(((
61.47	1327	(% style="color:blue" %)Step2(%%): Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
58.51	1328	)))
58.22	1329
58.51	1330	(((
61.47	1331	(% style="color:blue" %)Step3(%%): Open flashloader; choose the correct COM port to update.
58.51	1332	)))
58.22	1333
	1334	(((
58.35	1335	(((
58.51	1336	(((
58.22	1337	(% 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.
	1338	)))
58.35	1339	)))
58.51	1340	)))
58.22	1341
	1342
61.6	1343	(% 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" %)
58.22	1344
	1345
61.6	1346	(% 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" %)
58.22	1347
	1348
61.6	1349	(% 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" %)
58.22	1350
	1351
61.47	1352	(% 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:
58.22	1353
61.6	1354	(% 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" %)
58.22	1355
	1356
	1357	== 6.2 How to change the LoRa Frequency Bands/Region? ==
	1358
58.31	1359	User can follow the introduction for [[how to upgrade image>>\|\|anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
58.22	1360
	1361
60.11	1362	== 6.3 How many RS485-Slave can RS485-LN connects? ==
58.22	1363
60.11	1364	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"]].
58.22	1365
	1366
	1367	== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
	1368
	1369	When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
	1370
58.31	1371	Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome\|\|anchor="H7.23SetPacketReceivingResponseLevel"]]
58.22	1372
	1373
	1374	= 7. Trouble Shooting =
	1375
	1376	== 7.1 Downlink doesn’t work, how to solve it? ==
	1377
58.31	1378	Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
58.22	1379
	1380
	1381	== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
	1382
58.31	1383	It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome\|\|anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
58.22	1384
	1385
	1386	= 8. Order Info =
	1387
	1388	(% style="color:blue" %)Part Number: RS485-LN-XXX
	1389
	1390	(% style="color:blue" %)XXX:
	1391
61.47	1392	* (% style="color:red" %)EU433(%%): frequency bands EU433
	1393	* (% style="color:red" %)EU868(%%): frequency bands EU868
	1394	* (% style="color:red" %)KR920(%%): frequency bands KR920
	1395	* (% style="color:red" %)CN470(%%): frequency bands CN470
	1396	* (% style="color:red" %)AS923(%%): frequency bands AS923
	1397	* (% style="color:red" %)AU915(%%): frequency bands AU915
	1398	* (% style="color:red" %)US915(%%): frequency bands US915
	1399	* (% style="color:red" %)IN865(%%): frequency bands IN865
	1400	* (% style="color:red" %)RU864(%%): frequency bands RU864
	1401	* (% style="color:red" %)KZ865(%%): frequency bands KZ865
58.22	1402
61.35	1403
61.47	1404
	1405
58.22	1406	= 9.Packing Info =
	1407
	1408
	1409	Package Includes:
	1410
	1411	* RS485-LN x 1
	1412	* Stick Antenna for LoRa RF part x 1
	1413	* Program cable x 1
	1414
	1415	Dimension and weight:
	1416
	1417	* Device Size: 13.5 x 7 x 3 cm
	1418	* Device Weight: 105g
	1419	* Package Size / pcs : 14.5 x 8 x 5 cm
	1420	* Weight / pcs : 170g
	1421
61.35	1422
61.47	1423
	1424
58.22	1425	= 10. FCC Caution for RS485LN-US915 =
	1426
	1427	(((
	1428	Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1429	)))
	1430
	1431	(((
	1432	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.
	1433	)))
	1434
	1435	(((
	1436
	1437	)))
	1438
	1439	(((
	1440	IMPORTANT NOTE:
	1441	)))
	1442
	1443	(((
	1444	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:
	1445	)))
	1446
	1447	(((
	1448	—Reorient or relocate the receiving antenna.
	1449	)))
	1450
	1451	(((
	1452	—Increase the separation between the equipment and receiver.
	1453	)))
	1454
	1455	(((
	1456	—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1457	)))
	1458
	1459	(((
	1460	—Consult the dealer or an experienced radio/TV technician for help.
	1461	)))
	1462
	1463	(((
	1464
	1465	)))
	1466
	1467	(((
	1468	FCC Radiation Exposure Statement:
	1469	)))
	1470
	1471	(((
	1472	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.
	1473	)))
	1474
	1475
	1476	= 11. Support =
	1477
	1478	* (((
	1479	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.
	1480	)))
	1481	* (((
	1482	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]].
	1483	)))

Wiki source code of RS485-LN – RS485 to LoRaWAN Converter User Manual

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