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

Version 61.22 by Xiaoling on 2022/06/14 11:54

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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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61.6	14
58.22	15	Table of Contents:
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61.7	17	{{toc/}}
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61.6	20	(% aria-label="macro:toc widget" contenteditable="false" role="region" tabindex="-1" %)
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	22	(% 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	31	= 1.Introduction =
	32
	33	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
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60.3	38
	39
58.22	40	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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	46	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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	52	(% 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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	58	(% 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.
	59	)))
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	61	(((
	62	(% 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	69	(% 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	70
	71
	72	== 1.2 Specifications ==
	73
	74
	75	Hardware System:
	76
	77	* STM32L072CZT6 MCU
	78	* SX1276/78 Wireless Chip
	79	* Power Consumption (exclude RS485 device):
	80	** Idle: 32mA@12v
	81	** 20dB Transmit: 65mA@12v
	82
	83	Interface for Model:
	84
	85	* RS485
	86	* Power Input 7~~ 24V DC.
	87
	88	LoRa Spec:
	89
	90	* Frequency Range:
	91	** Band 1 (HF): 862 ~~ 1020 Mhz
	92	** Band 2 (LF): 410 ~~ 528 Mhz
	93	* 168 dB maximum link budget.
	94	* +20 dBm - 100 mW constant RF output vs.
	95	* +14 dBm high efficiency PA.
	96	* Programmable bit rate up to 300 kbps.
	97	* High sensitivity: down to -148 dBm.
	98	* Bullet-proof front end: IIP3 = -12.5 dBm.
	99	* Excellent blocking immunity.
	100	* Low RX current of 10.3 mA, 200 nA register retention.
	101	* Fully integrated synthesizer with a resolution of 61 Hz.
	102	* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
	103	* Built-in bit synchronizer for clock recovery.
	104	* Preamble detection.
	105	* 127 dB Dynamic Range RSSI.
	106	* Automatic RF Sense and CAD with ultra-fast AFC.
	107	* Packet engine up to 256 bytes with CRC
	108
61.8	109
	110
58.22	111	== 1.3 Features ==
	112
	113	* LoRaWAN Class A & Class C protocol (default Class C)
	114	* Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
	115	* AT Commands to change parameters
	116	* Remote configure parameters via LoRa Downlink
	117	* Firmware upgradable via program port
	118	* Support multiply RS485 devices by flexible rules
	119	* Support Modbus protocol
	120	* Support Interrupt uplink (Since hardware version v1.2)
	121
61.9	122
	123
58.22	124	== 1.4 Applications ==
	125
	126	* Smart Buildings & Home Automation
	127	* Logistics and Supply Chain Management
	128	* Smart Metering
	129	* Smart Agriculture
	130	* Smart Cities
	131	* Smart Factory
	132
61.10	133
	134
58.22	135	== 1.5 Firmware Change log ==
	136
	137	[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
	138
	139
	140	== 1.6 Hardware Change log ==
	141
	142	(((
	143	(((
	144	(((
	145	v1.2: Add External Interrupt Pin.
	146	)))
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	148	(((
	149	v1.0: Release
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	155
	156	= 2. Power ON Device =
	157
	158	(((
	159	The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
	160
	161	* Power Source VIN to RS485-LN VIN+
	162	* Power Source GND to RS485-LN VIN-
	163
	164	(((
	165	Once there is power, the RS485-LN will be on.
	166	)))
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61.6	168	(% 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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	172
	173	= 3. Operation Mode =
	174
	175	== 3.1 How it works? ==
	176
	177	(((
	178	(((
	179	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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	184
	185	== 3.2 Example to join LoRaWAN network ==
	186
	187	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	189	(% 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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	192	(((
	193	(((
	194	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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	197	(((
	198	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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61.6	201	(% 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	204	(((
58.31	205	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	209	(% style="color:blue" %)Step 1(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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	212	(((
	213	Each RS485-LN is shipped with a sticker with unique device EUI:
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61.6	217	(% 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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	222	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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60.6	226	Add APP EUI in the application.
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61.6	230	(% 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	232	(% 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	234	(% 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	236	(% 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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	238	You can also choose to create the device manually.
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61.6	240	(% 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	243
	244	Add APP KEY and DEV EUI
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61.6	246	(% 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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	249	(((
60.7	250	(% 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	253	(% 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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	255
	256	== 3.3 Configure Commands to read data ==
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	258	(((
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58.40	260	(((
60.11	261	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	262	)))
58.40	263	)))
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58.40	266	(((
58.22	267	(% 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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	273
	274	=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
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	276	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:
	277
	278	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	279	\|=(% style="width: 110px;" %)(((
	280	AT Commands
	281	)))\|=(% style="width: 190px;" %)(((
	282	Description
	283	)))\|=(% style="width: 190px;" %)(((
	284	Example
	285	)))
	286	\|(% style="width:110px" %)(((
	287	AT+BAUDR
	288	)))\|(% style="width:190px" %)(((
	289	Set the baud rate (for RS485 connection). Default Value is: 9600.
	290	)))\|(% style="width:190px" %)(((
	291	(((
	292	AT+BAUDR=9600
	293	)))
	294
	295	(((
	296	Options: (1200,2400,4800,14400,19200,115200)
	297	)))
	298	)))
	299	\|(% style="width:110px" %)(((
	300	AT+PARITY
	301	)))\|(% style="width:190px" %)(((
	302	Set UART parity (for RS485 connection)
	303	)))\|(% style="width:190px" %)(((
	304	(((
	305	AT+PARITY=0
	306	)))
	307
	308	(((
	309	Option: 0: no parity, 1: odd parity, 2: even parity
	310	)))
	311	)))
	312	\|(% style="width:110px" %)(((
	313	AT+STOPBIT
	314	)))\|(% style="width:190px" %)(((
	315	(((
	316	Set serial stopbit (for RS485 connection)
	317	)))
	318
	319	(((
	320
	321	)))
	322	)))\|(% style="width:190px" %)(((
	323	(((
	324	AT+STOPBIT=0 for 1bit
	325	)))
	326
	327	(((
	328	AT+STOPBIT=1 for 1.5 bit
	329	)))
	330
	331	(((
	332	AT+STOPBIT=2 for 2 bits
	333	)))
	334	)))
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61.20	336
	337
	338
58.22	339	=== 3.3.2 Configure sensors ===
	340
	341	(((
	342	(((
	343	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.
	344	)))
	345	)))
	346
	347	(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
	348	\|=(% style="width: 110px;" %)AT Commands\|=(% style="width: 190px;" %)Description\|=(% style="width: 190px;" %)Example
	349	\|AT+CFGDEV\|(% style="width:110px" %)(((
58.54	350	(((
58.22	351	This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
58.54	352	)))
58.22	353
58.54	354	(((
58.22	355	AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
58.54	356	)))
58.22	357
58.54	358	(((
58.22	359	mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
58.54	360	)))
58.22	361	)))\|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
	362
61.19	363
	364
	365
58.22	366	=== 3.3.3 Configure read commands for each sampling ===
	367
	368	(((
	369	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.
	370
	371	To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
	372
	373	This section describes how to achieve above goals.
	374
	375	During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
	376
	377
60.11	378	(% style="color:#037691" %)Each RS485 commands include two parts:
58.22	379
	380	~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.
	381
	382	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.
	383
	384	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
	385
	386
	387	After we got the valid value from each RS485 commands, we need to combine them together with the command AT+DATAUP.
	388
	389	Below are examples for the how above AT Commands works.
	390
	391
60.11	392	(% 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	393
	394	(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
	395	\|(% style="width:496px" %)(((
60.11	396	(% style="color:#037691" %)AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m
58.22	397
	398	xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent
	399
	400	m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
	401	)))
	402
	403	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.
	404
	405	In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
	406
	407
60.11	408	(% style="color:#037691" %)AT+DATACUTx (%%): This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
58.22	409
	410	(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
	411	\|(% style="width:510px" %)(((
	412	AT+DATACUTx=a,b,c
	413
	414	* a: length for the return of AT+COMMAND
	415	* b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.
	416	* c: define the position for valid value.
	417	)))
	418
	419	Examples:
	420
60.11	421	* (% style="color:#037691" %)Grab bytes
58.22	422
61.6	423	(% 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	424
	425
60.11	426	* (% style="color:#037691" %)Grab a section
58.22	427
61.6	428	(% 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	429
	430
60.11	431	* (% style="color:#037691" %)Grab different sections
58.22	432
61.6	433	(% 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	434
60.9	435
58.22	436
	437	)))
	438
	439	=== 3.3.4 Compose the uplink payload ===
	440
	441	(((
	442	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.
	443
	444
	445	)))
	446
	447	(((
	448	(% style="color:#037691" %)Examples: AT+DATAUP=0
	449
	450
	451	)))
	452
	453	(((
	454	Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)A SIGNLE UPLINK.
	455	)))
	456
	457	(((
	458	Final Payload is
	459	)))
	460
	461	(((
	462	(% style="color:#4f81bd" %)Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
	463	)))
	464
	465	(((
	466	Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
	467	)))
	468
61.6	469	(% 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	470
	471
	472	(% style="color:#037691" %)Examples: AT+DATAUP=1
	473
	474
	475	Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)Multiply UPLINKs.
	476
	477	Final Payload is
	478
	479	(% style="color:#4f81bd" %)Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
	480
	481
	482	1. PAYVER: Defined by AT+PAYVER
	483	1. PAYLOAD COUNT: Total how many uplinks of this sampling.
	484	1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
	485	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
	486
61.6	487	(% 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	488
	489
	490	So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
	491
	492	DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= 20 20 0a 33 90 41 02 aa
	493
	494	DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= 05 81 0a 20 20 20 20 2d
	495
	496	DATA3=the rest of Valid value of RETURN10= 30
	497
	498
	499	(% 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:
	500
	501	~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
	502
	503	* For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
	504
	505	* For US915 band, max 11 bytes for each uplink.
	506
	507	~* For all other bands: max 51 bytes for each uplink.
	508
	509
	510	Below are the uplink payloads:
	511
61.6	512	(% 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	513
	514
61.4	515
58.22	516	=== 3.3.5 Uplink on demand ===
	517
	518	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.
	519
	520	Downlink control command:
	521
	522	0x08 command: Poll an uplink with current command set in RS485-LN.
	523
	524	0xA8 command: Send a command to RS485-LN and uplink the output from sensors.
	525
	526
	527
	528	=== 3.3.6 Uplink on Interrupt ===
	529
	530	RS485-LN support external Interrupt uplink since hardware v1.2 release.
	531
61.6	532	(% 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	533
	534	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.
	535
	536
	537	== 3.4 Uplink Payload ==
	538
	539
61.6	540	(% 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	541
	542	Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
	543
	544
60.9	545	== 3.5 Configure RS485-LN via AT or Downlink ==
58.22	546
	547	(((
	548	User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
	549	)))
	550
	551	(((
	552	There are two kinds of Commands:
	553	)))
	554
	555	* (((
58.31	556	(% 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	557	)))
	558
	559	* (((
	560	(% style="color:#4f81bd" %)Sensor Related Commands(%%): These commands are special designed for RS485-LN. User can see these commands below:
	561	)))
	562
	563	(((
	564
	565	)))
	566
	567
	568	=== 3.5.1 Common Commands ===
	569
58.31	570	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	571
	572
	573	=== 3.5.2 Sensor related commands ===
	574
	575	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.
	576
61.6	577	(% 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	578
	579	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)
	580
	581
	582	=== 3.5.3 Sensor related commands ===
	583
	584
	585
	586
61.16	587	==== (% style="color:#037691" %)RS485 Debug Command(%%) ====
58.22	588
	589	(((
	590	This command is used to configure the RS485 devices; they won’t be used during sampling.
	591	)))
	592
	593	* (((
61.16	594	(% style="color:#037691" %)AT Command
58.22	595
61.21	596	(((
	597	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	598	)))
61.21	599	)))
58.22	600
	601	(((
61.21	602
58.22	603	)))
	604
	605	* (((
61.5	606	(% style="color:#037691" %)Downlink Payload
58.22	607	)))
	608
	609	(((
	610	Format: A8 MM NN XX XX XX XX YY
	611	)))
	612
	613	(((
	614	Where:
	615	)))
	616
	617	* (((
	618	MM: 1: add CRC-16/MODBUS ; 0: no CRC
	619	)))
	620	* (((
	621	NN: The length of RS485 command
	622	)))
	623	* (((
	624	XX XX XX XX: RS485 command total NN bytes
	625	)))
	626	* (((
	627	(((
	628	YY: How many bytes will be uplink from the return of this RS485 command,
	629	)))
	630
	631	* (((
	632	if YY=0, RS485-LN will execute the downlink command without uplink;
	633	)))
	634	* (((
	635	if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
	636	)))
	637	* (((
	638	if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
	639	)))
	640	)))
	641
	642	(((
61.22	643
	644
	645	Example 1 ~-~-> Configure without ask for uplink (YY=0)
58.22	646	)))
	647
	648	(((
	649	To connect a Modbus Alarm with below commands.
	650	)))
	651
	652	* (((
	653	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.
	654	)))
	655
	656	* (((
	657	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.
	658	)))
	659
	660	(((
	661	So if user want to use downlink command to control to RS485 Alarm, he can use:
	662	)))
	663
	664	(((
	665	(% style="color:#4f81bd" %)A8 01 06 0A 05 00 04 00 01 00(%%): to activate the RS485 Alarm
	666	)))
	667
	668	(((
	669	(% style="color:#4f81bd" %)A8 01 06 0A 05 00 04 00 00 00(%%): to deactivate the RS485 Alarm
	670	)))
	671
	672	(((
	673	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.
	674	)))
	675
	676	(((
	677
	678	)))
	679
	680	(((
	681	Example 2 ~-~-> Configure with requesting uplink and original downlink command (YY=FF)
	682	)))
	683
	684	(((
	685	User in IoT server send a downlink command: (% style="color:#4f81bd" %)A8 01 06 0A 08 00 04 00 01 YY
	686	)))
	687
	688	(((
	689
	690	)))
	691
	692	(((
	693	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:
	694	)))
	695
	696	(((
	697	A8 (% style="color:#4f81bd" %)0A 08 00 04 00 (% style="color:red" %)01 06 (% style="color:green" %)0A 08 00 04 00 00
	698	)))
	699
	700	(((
61.6	701	(% 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	702	)))
	703
	704
	705
	706
61.16	707	==== (% style="color:blue" %)Set Payload version(%%) ====
58.22	708
	709	(((
60.11	710	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	711	)))
	712
	713	* (((
61.16	714	(% style="color:#037691" %)AT Command:
58.22	715
61.17	716	AT+PAYVER: Set PAYVER field = 1
61.16	717
	718
58.22	719	)))
	720	* (((
61.16	721	(% style="color:#037691" %)Downlink Payload:
58.22	722	)))
	723
	724	(((
61.17	725	0xAE 01 ~-~-> Set PAYVER field = 0x01
58.22	726	)))
	727
	728	(((
61.17	729	0xAE 0F ~-~-> Set PAYVER field = 0x0F
58.22	730	)))
	731
	732
	733
	734
61.16	735	==== (% style="color:blue" %)Set RS485 Sampling Commands(%%) ====
58.22	736
	737	(((
	738	AT+COMMANDx or AT+DATACUTx
	739	)))
	740
	741	(((
58.31	742	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	743	)))
	744
	745	(((
	746
	747	)))
	748
	749	* (((
61.16	750	(% style="color:#037691" %)AT Command:
58.22	751	)))
	752
61.18	753	AT+COMMANDx: Configure RS485 read command to sensor.
58.22	754
61.18	755	AT+DATACUTx: Configure how to handle return from RS485 devices.
61.12	756
58.22	757
	758	* (((
61.16	759	(% style="color:#037691" %)Downlink Payload:
58.22	760	)))
	761
	762	(((
	763	0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	764	)))
	765
	766	(((
	767	(% style="color:red" %)Note(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
	768	)))
	769
	770	(((
	771	Format: AF MM NN LL XX XX XX XX YY
	772	)))
	773
	774	(((
	775	Where:
	776	)))
	777
	778	* (((
	779	MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	780	)))
	781	* (((
	782	NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	783	)))
	784	* (((
	785	LL: The length of AT+COMMAND or AT+DATACUT command
	786	)))
	787	* (((
	788	XX XX XX XX: AT+COMMAND or AT+DATACUT command
	789	)))
	790	* (((
60.11	791	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	792	)))
	793
	794	(((
	795	Example:
	796	)))
	797
	798	(((
	799	(% 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
	800	)))
	801
	802	(((
	803	(% 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
	804	)))
	805
	806	(((
	807	(% 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
	808	)))
	809
	810
	811
	812
61.16	813	==== (% style="color:blue" %)Fast command to handle MODBUS device(%%) ====
58.22	814
	815	(((
	816	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]].
	817	)))
	818
	819	(((
	820	This command is valid since v1.3 firmware version
	821	)))
	822
	823	(((
	824	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.
	825	)))
	826
	827	(((
	828
	829	)))
	830
	831	(((
	832	Example:
	833	)))
	834
	835	* (((
	836	AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
	837	)))
	838	* (((
	839	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.
	840	)))
	841	* (((
	842	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.
	843	)))
	844
61.6	845	(% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png\|\|data-widget="image"]](% 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	846
61.6	847	(% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png\|\|data-widget="image"]](% 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	848
	849
	850
	851
61.16	852	==== (% style="color:blue" %)RS485 command timeout(%%) ====
58.22	853
	854	(((
	855	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.
	856	)))
	857
	858	(((
	859	Default value: 0, range: 0 ~~ 65 seconds
	860	)))
	861
	862	* (((
61.16	863	(% style="color:#037691" %) AT Command:
58.22	864	)))
	865
	866	(% class="box infomessage" %)
	867	(((
	868	(((
	869	*AT+CMDDLaa=hex(bb cc)1000**
	870	)))
	871	)))
	872
	873	(((
	874	Example:
	875	)))
	876
	877	(((
	878	AT+CMDDL1=1000 to send the open time to 1000ms
	879	)))
	880
	881	(((
	882
	883	)))
	884
	885	* (((
61.16	886	(% style="color:#037691" %) Downlink Payload:
58.22	887	)))
	888
	889	(((
	890	0x AA aa bb cc
	891	)))
	892
	893	(((
	894	Same as: AT+CMDDLaa=hex(bb cc)*1000
	895	)))
	896
	897	(((
	898	Example:
	899	)))
	900
	901	(((
	902	0xAA 01 00 01 ~-~-> Same as AT+CMDDL1=1000 ms
	903	)))
	904
	905
	906
	907
61.16	908	==== (% style="color:blue" %)Uplink payload mode(%%) ====
58.22	909
	910	(((
	911	Define to use one uplink or multiple uplinks for the sampling.
	912	)))
	913
	914	(((
58.31	915	The use of this command please see: [[Compose Uplink payload>>\|\|anchor="H3.3.4Composetheuplinkpayload"]]
58.22	916	)))
	917
	918	* (((
61.16	919	(% style="color:#037691" %) AT Command:
58.22	920	)))
	921
	922	AT+DATAUP=0
	923
	924	AT+DATAUP=1
	925
	926
	927	* (((
61.16	928	(% style="color:#037691" %) Downlink Payload:
58.22	929	)))
	930
	931	(((
	932	0xAD 00 ~-~-> Same as AT+DATAUP=0
	933	)))
	934
	935	(((
	936	0xAD 01 ~-~-> Same as AT+DATAUP=1
	937	)))
	938
	939
	940
	941
61.16	942	==== (% style="color:blue" %)Manually trigger an Uplink(%%) ====
58.22	943
	944	(((
	945	Ask device to send an uplink immediately.
	946	)))
	947
	948	* (((
61.16	949	(% style="color:#037691" %) AT Command:
58.22	950	)))
	951
	952	(((
58.31	953	No AT Command for this, user can press the [[ACT button>>\|\|anchor="H3.7Buttons"]] for 1 second for the same.
58.22	954	)))
	955
	956	(((
	957
	958	)))
	959
	960	* (((
61.16	961	(% style="color:#037691" %) Downlink Payload:
58.22	962	)))
	963
	964	(((
	965	0x08 FF, RS485-LN will immediately send an uplink.
	966	)))
	967
	968
	969
	970
61.16	971	==== (% style="color:blue" %)Clear RS485 Command(%%) ====
58.22	972
	973	(((
	974	The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	975	)))
	976
	977	* (((
61.16	978	(% style="color:#037691" %) AT Command:
58.22	979	)))
	980
	981	(((
	982	AT+CMDEAR=mm,nn mm: start position of erase ,nn: stop position of erase
	983	)))
	984
	985	(((
	986	Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	987	)))
	988
	989	(((
	990	Example screen shot after clear all RS485 commands.
	991	)))
	992
	993	(((
	994
	995	)))
	996
	997	(((
	998	The uplink screen shot is:
	999	)))
	1000
61.6	1001	(% 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	1002
	1003
	1004	* (((
61.16	1005	(% style="color:#037691" %) Downlink Payload:
58.22	1006	)))
	1007
	1008	(((
	1009	0x09 aa bb same as AT+CMDEAR=aa,bb
	1010	)))
	1011
	1012
	1013
	1014
61.16	1015	==== (% style="color:blue" %)Set Serial Communication Parameters(%%) ====
58.22	1016
	1017	(((
	1018	Set the Rs485 serial communication parameters:
	1019	)))
	1020
	1021	* (((
61.16	1022	(% style="color:#037691" %) AT Command:
58.22	1023	)))
	1024
	1025	(((
	1026	Set Baud Rate:
	1027	)))
	1028
61.15	1029
58.22	1030	AT+BAUDR=9600 ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1031
61.15	1032
58.22	1033	(((
	1034	Set UART Parity
	1035	)))
	1036
61.15	1037
58.22	1038	AT+PARITY=0 ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1039
61.15	1040
58.22	1041	(((
	1042	Set STOPBIT
	1043	)))
	1044
61.15	1045
58.22	1046	AT+STOPBIT=0 ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1047
	1048
	1049	* (((
61.16	1050	(% style="color:#037691" %) Downlink Payload:
58.22	1051	)))
	1052
	1053	(((
	1054	A7 01 aa bb: Same AT+BAUDR=hex(aa bb)*100
	1055	)))
	1056
	1057	(((
	1058	Example:
	1059	)))
	1060
	1061	* (((
	1062	A7 01 00 60 same as AT+BAUDR=9600
	1063	)))
	1064	* (((
	1065	A7 01 04 80 same as AT+BAUDR=115200
	1066	)))
	1067
	1068	(((
	1069	A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02)
	1070	)))
	1071
	1072	(((
	1073	A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02)
	1074	)))
	1075
	1076
	1077
	1078
	1079	== 3.6 Listening mode for RS485 network ==
	1080
	1081	(((
	1082	This feature support since firmware v1.4
	1083	)))
	1084
	1085	(((
	1086	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.
	1087	)))
	1088
61.6	1089	(% 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	1090
	1091	(((
	1092	To enable the listening mode, use can run the command AT+RXMODE.
	1093	)))
	1094
	1095	(((
	1096
	1097	)))
	1098
	1099	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
58.44	1100	\|=(% style="width: 100px;" %)(((
	1101	Command example
	1102	)))\|=(% style="width: 400px;" %)(((
58.22	1103	Function
	1104	)))
58.44	1105	\|(% style="width:100px" %)(((
58.22	1106	AT+RXMODE=1,10
58.44	1107	)))\|(% style="width:400px" %)(((
58.22	1108	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.
	1109	)))
58.44	1110	\|(% style="width:100px" %)(((
58.22	1111	AT+RXMODE=2,500
58.44	1112	)))\|(% style="width:400px" %)(((
58.22	1113	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
	1114	)))
58.44	1115	\|(% style="width:100px" %)(((
58.22	1116	AT+RXMODE=0,0
58.44	1117	)))\|(% style="width:400px" %)(((
58.22	1118	Disable listening mode. This is the default settings.
	1119	)))
58.44	1120	\|(% style="width:100px" %)(((
58.22	1121
58.44	1122	)))\|(% style="width:400px" %)(((
58.22	1123	A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 \| cc)
	1124	)))
	1125
	1126	(((
	1127	Downlink Command:
	1128	)))
	1129
	1130	(((
	1131	0xA6 aa bb cc same as AT+RXMODE=aa,(bb<<8 \| cc)
	1132	)))
	1133
	1134	(((
	1135
	1136	)))
	1137
	1138	(((
	1139	Example:
	1140	)))
	1141
	1142	(((
	1143	The RS485-LN is set to AT+RXMODE=2,1000
	1144	)))
	1145
	1146	(((
	1147	There is a two Modbus commands in the RS485 network as below:
	1148	)))
	1149
	1150	(((
	1151	The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1152	)))
	1153
	1154	(((
	1155	And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1156	)))
	1157
	1158	(((
	1159	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
	1160	)))
	1161
	1162	(((
61.6	1163	(% 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	1164	)))
	1165
	1166	(((
	1167
	1168	)))
	1169
	1170	(((
58.49	1171	(((
58.22	1172	(% 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.
	1173	)))
58.49	1174	)))
58.22	1175
	1176
	1177	== 3.7 Buttons ==
	1178
	1179
59.12	1180	(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1181	\|=(% style="width: 50px;" %)Button\|=(% style="width: 361px;" %)Feature
	1182	\|(% 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
	1183	\|(% style="width:50px" %)RST\|(% style="width:361px" %)Reboot RS485
	1184	\|(% style="width:50px" %)PRO\|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>\|\|anchor="H6.1Howtoupgradetheimage3F"]]
58.22	1185
	1186	== 3.8 LEDs ==
	1187
58.36	1188
58.32	1189	(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
58.38	1190	\|=(% style="width: 50px;" %)LEDs\|=(% style="width: 380px;" %)Feature
58.36	1191	\|PWR\|Always on if there is power
	1192	\|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	1193
	1194	= 4. Case Study =
	1195
58.31	1196	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	1197
	1198
	1199	= 5. Use AT Command =
	1200
	1201	== 5.1 Access AT Command ==
	1202
58.25	1203	(((
60.11	1204	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	1205	)))
58.22	1206
61.6	1207	(% 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	1208
	1209
58.25	1210	(((
60.11	1211	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	1212	)))
58.22	1213
61.6	1214	(% 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	1215
	1216
58.26	1217	(((
58.31	1218	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	1219	)))
58.22	1220
	1221
58.27	1222
58.22	1223	== 5.2 Common AT Command Sequence ==
	1224
	1225	=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
	1226
	1227	If device has not joined network yet:
	1228
	1229	(% class="box infomessage" %)
	1230	(((
	1231	AT+FDR
	1232	)))
	1233
	1234	(% class="box infomessage" %)
	1235	(((
	1236	AT+NJM=0
	1237	)))
	1238
	1239	(% class="box infomessage" %)
	1240	(((
	1241	ATZ
	1242	)))
	1243
	1244
58.53	1245	(((
58.22	1246	If device already joined network:
58.53	1247	)))
58.22	1248
	1249	(% class="box infomessage" %)
	1250	(((
	1251	AT+NJM=0
	1252	)))
	1253
	1254	(% class="box infomessage" %)
	1255	(((
	1256	ATZ
	1257	)))
	1258
	1259
	1260	=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
	1261
	1262
	1263	(% style="background-color:#dcdcdc" %)AT+FDR (%%) Reset Parameters to Factory Default, Keys Reserve
	1264
	1265	(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
	1266
	1267	(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
	1268
	1269	(% style="background-color:#dcdcdc" %)AT+DR=5 (%%)Set Data Rate
	1270
	1271	(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
	1272
	1273	(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
	1274
	1275	(% style="background-color:#dcdcdc" %)AT+RX2FQ=868400000 (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
	1276
	1277	(% style="background-color:#dcdcdc" %)AT+RX2DR=5 (%%) Set RX2DR to match the downlink DR from server. see below
	1278
	1279	(% 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.
	1280
	1281	(% style="background-color:#dcdcdc" %)ATZ (%%) Reset MCU
	1282
	1283
	1284	(% style="color:red" %)Note:
	1285
58.52	1286	(((
58.22	1287	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1288	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1289	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.
	1290	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	1291	)))
58.22	1292
61.6	1293	(% 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	1294
	1295
	1296	= 6. FAQ =
	1297
	1298	== 6.1 How to upgrade the image? ==
	1299
58.34	1300	(((
58.22	1301	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	1302	)))
58.22	1303
58.34	1304	* (((
	1305	Support new features
	1306	)))
	1307	* (((
	1308	For bug fix
	1309	)))
	1310	* (((
	1311	Change LoRaWAN bands.
	1312	)))
58.22	1313
58.34	1314	(((
58.22	1315	Below shows the hardware connection for how to upload an image to RS485-LN:
58.34	1316	)))
58.22	1317
61.6	1318	(% 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	1319
58.51	1320	(((
58.22	1321	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	1322	)))
58.22	1323
58.51	1324	(((
58.22	1325	Step2: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
58.51	1326	)))
58.22	1327
58.51	1328	(((
58.22	1329	Step3: Open flashloader; choose the correct COM port to update.
58.51	1330	)))
58.22	1331
	1332	(((
58.35	1333	(((
58.51	1334	(((
58.22	1335	(% 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.
	1336	)))
58.35	1337	)))
58.51	1338	)))
58.22	1339
	1340
61.6	1341	(% 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	1342
	1343
61.6	1344	(% 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	1345
	1346
61.6	1347	(% 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	1348
	1349
	1350	Notice: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
	1351
61.6	1352	(% 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	1353
	1354
	1355	== 6.2 How to change the LoRa Frequency Bands/Region? ==
	1356
58.31	1357	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	1358
	1359
60.11	1360	== 6.3 How many RS485-Slave can RS485-LN connects? ==
58.22	1361
60.11	1362	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	1363
	1364
	1365	== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
	1366
	1367	When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
	1368
58.31	1369	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	1370
	1371
	1372	= 7. Trouble Shooting =
	1373
	1374	== 7.1 Downlink doesn’t work, how to solve it? ==
	1375
58.31	1376	Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
58.22	1377
	1378
	1379	== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
	1380
58.31	1381	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	1382
	1383
	1384	= 8. Order Info =
	1385
	1386	(% style="color:blue" %)Part Number: RS485-LN-XXX
	1387
	1388	(% style="color:blue" %)XXX:
	1389
	1390	* (% style="color:blue" %)EU433(%%): frequency bands EU433
	1391	* (% style="color:blue" %)EU868(%%): frequency bands EU868
	1392	* (% style="color:blue" %)KR920(%%): frequency bands KR920
	1393	* (% style="color:blue" %)CN470(%%): frequency bands CN470
	1394	* (% style="color:blue" %)AS923(%%): frequency bands AS923
	1395	* (% style="color:blue" %)AU915(%%): frequency bands AU915
	1396	* (% style="color:blue" %)US915(%%): frequency bands US915
	1397	* (% style="color:blue" %)IN865(%%): frequency bands IN865
	1398	* (% style="color:blue" %)RU864(%%): frequency bands RU864
	1399	* (% style="color:blue" %)KZ865(%%): frequency bands KZ865
	1400
	1401	= 9.Packing Info =
	1402
	1403
	1404	Package Includes:
	1405
	1406	* RS485-LN x 1
	1407	* Stick Antenna for LoRa RF part x 1
	1408	* Program cable x 1
	1409
	1410	Dimension and weight:
	1411
	1412	* Device Size: 13.5 x 7 x 3 cm
	1413	* Device Weight: 105g
	1414	* Package Size / pcs : 14.5 x 8 x 5 cm
	1415	* Weight / pcs : 170g
	1416
	1417	= 10. FCC Caution for RS485LN-US915 =
	1418
	1419	(((
	1420	Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1421	)))
	1422
	1423	(((
	1424	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.
	1425	)))
	1426
	1427	(((
	1428
	1429	)))
	1430
	1431	(((
	1432	IMPORTANT NOTE:
	1433	)))
	1434
	1435	(((
	1436	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:
	1437	)))
	1438
	1439	(((
	1440	—Reorient or relocate the receiving antenna.
	1441	)))
	1442
	1443	(((
	1444	—Increase the separation between the equipment and receiver.
	1445	)))
	1446
	1447	(((
	1448	—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1449	)))
	1450
	1451	(((
	1452	—Consult the dealer or an experienced radio/TV technician for help.
	1453	)))
	1454
	1455	(((
	1456
	1457	)))
	1458
	1459	(((
	1460	FCC Radiation Exposure Statement:
	1461	)))
	1462
	1463	(((
	1464	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.
	1465	)))
	1466
	1467
	1468	= 11. Support =
	1469
	1470	* (((
	1471	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.
	1472	)))
	1473	* (((
	1474	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]].
	1475	)))

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

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