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

Version 61.27 by Xiaoling on 2022/06/14 11:56

version	line-number	content
61.6	1	(% aria-label="1653266934636-343.png image widget" contenteditable="false" role="region" tabindex="-1" %)
	2	(((
	3	(% data-widget="image" style="text-align:center" %)
	4	[[image:1653266934636-343.png\|\|height="385" width="385"]](% title="Click and drag to resize" %)
58.22	5
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"]]
	7	)))
58.22	8
	9
	10
	11
	12
	13
61.6	14
58.22	15	Table of Contents:
	16
61.7	17	{{toc/}}
	18
	19
61.6	20	(% aria-label="macro:toc widget" contenteditable="false" role="region" tabindex="-1" %)
	21	(((
	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"]]
	23	)))
58.22	24
	25
	26
	27
	28
61.6	29
	30
58.22	31	= 1.Introduction =
	32
	33	== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
	34
	35	(((
	36	(((
	37	(((
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.
	41	)))
	42	)))
	43
	44	(((
	45	(((
	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.
	47	)))
	48	)))
	49
	50	(((
	51	(((
	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.
	53	)))
	54	)))
	55
	56	(((
	57	(((
	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	)))
	60
	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]]
60.3	63
	64
58.22	65	)))
	66	)))
	67	)))
	68
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	)))
	147
	148	(((
	149	v1.0: Release
	150	)))
	151
	152
	153	)))
	154	)))
	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	)))
	167
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" %)
58.22	169
	170
	171	)))
	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.
	180	)))
	181
	182
	183	)))
	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.
	188
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" %)
58.22	190
	191
	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:
	195	)))
	196
	197	(((
	198	485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
	199	)))
	200
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" %)
58.22	202
60.6	203
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:
58.22	206	)))
	207
	208	(((
60.7	209	(% style="color:blue" %)Step 1(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
58.22	210	)))
	211
	212	(((
	213	Each RS485-LN is shipped with a sticker with unique device EUI:
	214	)))
	215	)))
	216
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" %)
58.22	218
60.6	219
58.22	220	(((
	221	(((
	222	User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
	223	)))
	224
	225	(((
60.6	226	Add APP EUI in the application.
58.22	227	)))
	228	)))
	229
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" %)
58.22	231
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" %)
58.22	233
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" %)
58.22	235
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" %)
58.22	237
	238	You can also choose to create the device manually.
	239
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" %)
58.22	241
	242
60.6	243
	244	Add APP KEY and DEV EUI
	245
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" %)
58.22	247
	248
	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.
58.22	251	)))
	252
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" %)
58.22	254
	255
	256	== 3.3 Configure Commands to read data ==
	257
	258	(((
	259	(((
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	)))
58.22	264
	265	(((
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
58.40	268	)))
58.22	269
	270
	271	)))
	272	)))
	273
	274	=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
	275
	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	)))
	335
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	(((
61.24	661
	662
58.22	663	So if user want to use downlink command to control to RS485 Alarm, he can use:
	664	)))
	665
	666	(((
	667	(% style="color:#4f81bd" %)A8 01 06 0A 05 00 04 00 01 00(%%): to activate the RS485 Alarm
	668	)))
	669
	670	(((
	671	(% style="color:#4f81bd" %)A8 01 06 0A 05 00 04 00 00 00(%%): to deactivate the RS485 Alarm
	672	)))
	673
	674	(((
	675	A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output.
	676	)))
	677
	678	(((
	679
	680	)))
	681
	682	(((
61.24	683	Example 2 ~-~-> Configure with requesting uplink and original downlink command (YY=FF)
58.22	684	)))
	685
	686	(((
	687	User in IoT server send a downlink command: (% style="color:#4f81bd" %)A8 01 06 0A 08 00 04 00 01 YY
	688	)))
	689
	690	(((
	691
	692	)))
	693
	694	(((
61.24	695	(((
	696	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	697	)))
	698
61.24	699
58.22	700	)))
	701
	702	(((
61.6	703	(% 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	704	)))
	705
	706
	707
	708
61.16	709	==== (% style="color:blue" %)Set Payload version(%%) ====
58.22	710
	711	(((
60.11	712	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	713	)))
	714
	715	* (((
61.16	716	(% style="color:#037691" %)AT Command:
58.22	717
61.17	718	AT+PAYVER: Set PAYVER field = 1
61.16	719
	720
58.22	721	)))
	722	* (((
61.16	723	(% style="color:#037691" %)Downlink Payload:
58.22	724	)))
	725
	726	(((
61.17	727	0xAE 01 ~-~-> Set PAYVER field = 0x01
58.22	728	)))
	729
	730	(((
61.17	731	0xAE 0F ~-~-> Set PAYVER field = 0x0F
58.22	732	)))
	733
	734
	735
	736
61.16	737	==== (% style="color:blue" %)Set RS485 Sampling Commands(%%) ====
58.22	738
	739	(((
	740	AT+COMMANDx or AT+DATACUTx
	741	)))
	742
	743	(((
58.31	744	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	745	)))
	746
	747	(((
	748
	749	)))
	750
	751	* (((
61.16	752	(% style="color:#037691" %)AT Command:
58.22	753	)))
	754
61.18	755	AT+COMMANDx: Configure RS485 read command to sensor.
58.22	756
61.18	757	AT+DATACUTx: Configure how to handle return from RS485 devices.
61.12	758
58.22	759
	760	* (((
61.16	761	(% style="color:#037691" %)Downlink Payload:
58.22	762	)))
	763
	764	(((
	765	0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
	766	)))
	767
	768	(((
	769	(% style="color:red" %)Note(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
	770	)))
	771
	772	(((
	773	Format: AF MM NN LL XX XX XX XX YY
	774	)))
	775
	776	(((
	777	Where:
	778	)))
	779
	780	* (((
	781	MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
	782	)))
	783	* (((
	784	NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
	785	)))
	786	* (((
	787	LL: The length of AT+COMMAND or AT+DATACUT command
	788	)))
	789	* (((
	790	XX XX XX XX: AT+COMMAND or AT+DATACUT command
	791	)))
	792	* (((
60.11	793	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	794	)))
	795
	796	(((
61.25	797
	798
58.22	799	Example:
	800	)))
	801
	802	(((
	803	(% 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
	804	)))
	805
	806	(((
	807	(% 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
	808	)))
	809
	810	(((
	811	(% 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
	812	)))
	813
	814
	815
	816
61.16	817	==== (% style="color:blue" %)Fast command to handle MODBUS device(%%) ====
58.22	818
	819	(((
	820	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]].
	821	)))
	822
	823	(((
	824	This command is valid since v1.3 firmware version
	825	)))
	826
	827	(((
	828	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.
	829	)))
	830
	831	(((
	832
	833	)))
	834
	835	(((
	836	Example:
	837	)))
	838
	839	* (((
61.26	840	AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
58.22	841	)))
	842	* (((
61.26	843	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	844	)))
	845	* (((
61.26	846	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.
	847
	848
58.22	849	)))
	850
61.27	851	(% 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	852
61.27	853	(% 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	854
	855
	856
	857
61.16	858	==== (% style="color:blue" %)RS485 command timeout(%%) ====
58.22	859
	860	(((
	861	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.
	862	)))
	863
	864	(((
	865	Default value: 0, range: 0 ~~ 65 seconds
	866	)))
	867
	868	* (((
61.16	869	(% style="color:#037691" %) AT Command:
58.22	870	)))
	871
	872	(% class="box infomessage" %)
	873	(((
	874	(((
	875	*AT+CMDDLaa=hex(bb cc)1000**
	876	)))
	877	)))
	878
	879	(((
	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	(((
	904	Example:
	905	)))
	906
	907	(((
	908	0xAA 01 00 01 ~-~-> Same as AT+CMDDL1=1000 ms
	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"]]
58.22	922	)))
	923
	924	* (((
61.16	925	(% style="color:#037691" %) AT Command:
58.22	926	)))
	927
	928	AT+DATAUP=0
	929
	930	AT+DATAUP=1
	931
	932
	933	* (((
61.16	934	(% style="color:#037691" %) Downlink Payload:
58.22	935	)))
	936
	937	(((
	938	0xAD 00 ~-~-> Same as AT+DATAUP=0
	939	)))
	940
	941	(((
	942	0xAD 01 ~-~-> Same as AT+DATAUP=1
	943	)))
	944
	945
	946
	947
61.16	948	==== (% style="color:blue" %)Manually trigger an Uplink(%%) ====
58.22	949
	950	(((
	951	Ask device to send an uplink immediately.
	952	)))
	953
	954	* (((
61.16	955	(% style="color:#037691" %) AT Command:
58.22	956	)))
	957
	958	(((
58.31	959	No AT Command for this, user can press the [[ACT button>>\|\|anchor="H3.7Buttons"]] for 1 second for the same.
58.22	960	)))
	961
	962	(((
	963
	964	)))
	965
	966	* (((
61.16	967	(% style="color:#037691" %) Downlink Payload:
58.22	968	)))
	969
	970	(((
	971	0x08 FF, RS485-LN will immediately send an uplink.
	972	)))
	973
	974
	975
	976
61.16	977	==== (% style="color:blue" %)Clear RS485 Command(%%) ====
58.22	978
	979	(((
	980	The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
	981	)))
	982
	983	* (((
61.16	984	(% style="color:#037691" %) AT Command:
58.22	985	)))
	986
	987	(((
	988	AT+CMDEAR=mm,nn mm: start position of erase ,nn: stop position of erase
	989	)))
	990
	991	(((
	992	Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
	993	)))
	994
	995	(((
	996	Example screen shot after clear all RS485 commands.
	997	)))
	998
	999	(((
	1000
	1001	)))
	1002
	1003	(((
	1004	The uplink screen shot is:
	1005	)))
	1006
61.6	1007	(% 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	1008
	1009
	1010	* (((
61.16	1011	(% style="color:#037691" %) Downlink Payload:
58.22	1012	)))
	1013
	1014	(((
	1015	0x09 aa bb same as AT+CMDEAR=aa,bb
	1016	)))
	1017
	1018
	1019
	1020
61.16	1021	==== (% style="color:blue" %)Set Serial Communication Parameters(%%) ====
58.22	1022
	1023	(((
	1024	Set the Rs485 serial communication parameters:
	1025	)))
	1026
	1027	* (((
61.16	1028	(% style="color:#037691" %) AT Command:
58.22	1029	)))
	1030
	1031	(((
	1032	Set Baud Rate:
	1033	)))
	1034
61.15	1035
58.22	1036	AT+BAUDR=9600 ~/~/ Options: (1200,2400,4800,14400,19200,115200)
	1037
61.15	1038
58.22	1039	(((
	1040	Set UART Parity
	1041	)))
	1042
61.15	1043
58.22	1044	AT+PARITY=0 ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
	1045
61.15	1046
58.22	1047	(((
	1048	Set STOPBIT
	1049	)))
	1050
61.15	1051
58.22	1052	AT+STOPBIT=0 ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
	1053
	1054
	1055	* (((
61.16	1056	(% style="color:#037691" %) Downlink Payload:
58.22	1057	)))
	1058
	1059	(((
	1060	A7 01 aa bb: Same AT+BAUDR=hex(aa bb)*100
	1061	)))
	1062
	1063	(((
	1064	Example:
	1065	)))
	1066
	1067	* (((
	1068	A7 01 00 60 same as AT+BAUDR=9600
	1069	)))
	1070	* (((
	1071	A7 01 04 80 same as AT+BAUDR=115200
	1072	)))
	1073
	1074	(((
	1075	A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02)
	1076	)))
	1077
	1078	(((
	1079	A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02)
	1080	)))
	1081
	1082
	1083
	1084
	1085	== 3.6 Listening mode for RS485 network ==
	1086
	1087	(((
	1088	This feature support since firmware v1.4
	1089	)))
	1090
	1091	(((
	1092	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.
	1093	)))
	1094
61.6	1095	(% 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	1096
	1097	(((
	1098	To enable the listening mode, use can run the command AT+RXMODE.
	1099	)))
	1100
	1101	(((
	1102
	1103	)))
	1104
	1105	(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
58.44	1106	\|=(% style="width: 100px;" %)(((
	1107	Command example
	1108	)))\|=(% style="width: 400px;" %)(((
58.22	1109	Function
	1110	)))
58.44	1111	\|(% style="width:100px" %)(((
58.22	1112	AT+RXMODE=1,10
58.44	1113	)))\|(% style="width:400px" %)(((
58.22	1114	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.
	1115	)))
58.44	1116	\|(% style="width:100px" %)(((
58.22	1117	AT+RXMODE=2,500
58.44	1118	)))\|(% style="width:400px" %)(((
58.22	1119	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
	1120	)))
58.44	1121	\|(% style="width:100px" %)(((
58.22	1122	AT+RXMODE=0,0
58.44	1123	)))\|(% style="width:400px" %)(((
58.22	1124	Disable listening mode. This is the default settings.
	1125	)))
58.44	1126	\|(% style="width:100px" %)(((
58.22	1127
58.44	1128	)))\|(% style="width:400px" %)(((
58.22	1129	A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 \| cc)
	1130	)))
	1131
	1132	(((
	1133	Downlink Command:
	1134	)))
	1135
	1136	(((
	1137	0xA6 aa bb cc same as AT+RXMODE=aa,(bb<<8 \| cc)
	1138	)))
	1139
	1140	(((
	1141
	1142	)))
	1143
	1144	(((
	1145	Example:
	1146	)))
	1147
	1148	(((
	1149	The RS485-LN is set to AT+RXMODE=2,1000
	1150	)))
	1151
	1152	(((
	1153	There is a two Modbus commands in the RS485 network as below:
	1154	)))
	1155
	1156	(((
	1157	The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
	1158	)))
	1159
	1160	(((
	1161	And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
	1162	)))
	1163
	1164	(((
	1165	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
	1166	)))
	1167
	1168	(((
61.6	1169	(% 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	1170	)))
	1171
	1172	(((
	1173
	1174	)))
	1175
	1176	(((
58.49	1177	(((
58.22	1178	(% 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.
	1179	)))
58.49	1180	)))
58.22	1181
	1182
	1183	== 3.7 Buttons ==
	1184
	1185
59.12	1186	(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
	1187	\|=(% style="width: 50px;" %)Button\|=(% style="width: 361px;" %)Feature
	1188	\|(% 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
	1189	\|(% style="width:50px" %)RST\|(% style="width:361px" %)Reboot RS485
	1190	\|(% style="width:50px" %)PRO\|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>\|\|anchor="H6.1Howtoupgradetheimage3F"]]
58.22	1191
	1192	== 3.8 LEDs ==
	1193
58.36	1194
58.32	1195	(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
58.38	1196	\|=(% style="width: 50px;" %)LEDs\|=(% style="width: 380px;" %)Feature
58.36	1197	\|PWR\|Always on if there is power
	1198	\|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	1199
	1200	= 4. Case Study =
	1201
58.31	1202	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	1203
	1204
	1205	= 5. Use AT Command =
	1206
	1207	== 5.1 Access AT Command ==
	1208
58.25	1209	(((
60.11	1210	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	1211	)))
58.22	1212
61.6	1213	(% 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	1214
	1215
58.25	1216	(((
60.11	1217	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	1218	)))
58.22	1219
61.6	1220	(% 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	1221
	1222
58.26	1223	(((
58.31	1224	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	1225	)))
58.22	1226
	1227
58.27	1228
58.22	1229	== 5.2 Common AT Command Sequence ==
	1230
	1231	=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
	1232
	1233	If device has not joined network yet:
	1234
	1235	(% class="box infomessage" %)
	1236	(((
	1237	AT+FDR
	1238	)))
	1239
	1240	(% class="box infomessage" %)
	1241	(((
	1242	AT+NJM=0
	1243	)))
	1244
	1245	(% class="box infomessage" %)
	1246	(((
	1247	ATZ
	1248	)))
	1249
	1250
58.53	1251	(((
58.22	1252	If device already joined network:
58.53	1253	)))
58.22	1254
	1255	(% class="box infomessage" %)
	1256	(((
	1257	AT+NJM=0
	1258	)))
	1259
	1260	(% class="box infomessage" %)
	1261	(((
	1262	ATZ
	1263	)))
	1264
	1265
	1266	=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
	1267
	1268
	1269	(% style="background-color:#dcdcdc" %)AT+FDR (%%) Reset Parameters to Factory Default, Keys Reserve
	1270
	1271	(% style="background-color:#dcdcdc" %)AT+NJM=0 (%%)Set to ABP mode
	1272
	1273	(% style="background-color:#dcdcdc" %)AT+ADR=0 (%%)Set the Adaptive Data Rate Off
	1274
	1275	(% style="background-color:#dcdcdc" %)AT+DR=5 (%%)Set Data Rate
	1276
	1277	(% style="background-color:#dcdcdc" %)AT+TDC=60000 (%%) Set transmit interval to 60 seconds
	1278
	1279	(% style="background-color:#dcdcdc" %)AT+CHS=868400000(%%) Set transmit frequency to 868.4Mhz
	1280
	1281	(% style="background-color:#dcdcdc" %)AT+RX2FQ=868400000 (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
	1282
	1283	(% style="background-color:#dcdcdc" %)AT+RX2DR=5 (%%) Set RX2DR to match the downlink DR from server. see below
	1284
	1285	(% 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.
	1286
	1287	(% style="background-color:#dcdcdc" %)ATZ (%%) Reset MCU
	1288
	1289
	1290	(% style="color:red" %)Note:
	1291
58.52	1292	(((
58.22	1293	(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
	1294	2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
	1295	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.
	1296	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	1297	)))
58.22	1298
61.6	1299	(% 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	1300
	1301
	1302	= 6. FAQ =
	1303
	1304	== 6.1 How to upgrade the image? ==
	1305
58.34	1306	(((
58.22	1307	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	1308	)))
58.22	1309
58.34	1310	* (((
	1311	Support new features
	1312	)))
	1313	* (((
	1314	For bug fix
	1315	)))
	1316	* (((
	1317	Change LoRaWAN bands.
	1318	)))
58.22	1319
58.34	1320	(((
58.22	1321	Below shows the hardware connection for how to upload an image to RS485-LN:
58.34	1322	)))
58.22	1323
61.6	1324	(% 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	1325
58.51	1326	(((
58.22	1327	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	1328	)))
58.22	1329
58.51	1330	(((
58.22	1331	Step2: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
58.51	1332	)))
58.22	1333
58.51	1334	(((
58.22	1335	Step3: Open flashloader; choose the correct COM port to update.
58.51	1336	)))
58.22	1337
	1338	(((
58.35	1339	(((
58.51	1340	(((
58.22	1341	(% 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.
	1342	)))
58.35	1343	)))
58.51	1344	)))
58.22	1345
	1346
61.6	1347	(% 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	1348
	1349
61.6	1350	(% 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	1351
	1352
61.6	1353	(% 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	1354
	1355
	1356	Notice: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
	1357
61.6	1358	(% 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	1359
	1360
	1361	== 6.2 How to change the LoRa Frequency Bands/Region? ==
	1362
58.31	1363	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	1364
	1365
60.11	1366	== 6.3 How many RS485-Slave can RS485-LN connects? ==
58.22	1367
60.11	1368	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	1369
	1370
	1371	== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
	1372
	1373	When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
	1374
58.31	1375	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	1376
	1377
	1378	= 7. Trouble Shooting =
	1379
	1380	== 7.1 Downlink doesn’t work, how to solve it? ==
	1381
58.31	1382	Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
58.22	1383
	1384
	1385	== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
	1386
58.31	1387	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	1388
	1389
	1390	= 8. Order Info =
	1391
	1392	(% style="color:blue" %)Part Number: RS485-LN-XXX
	1393
	1394	(% style="color:blue" %)XXX:
	1395
	1396	* (% style="color:blue" %)EU433(%%): frequency bands EU433
	1397	* (% style="color:blue" %)EU868(%%): frequency bands EU868
	1398	* (% style="color:blue" %)KR920(%%): frequency bands KR920
	1399	* (% style="color:blue" %)CN470(%%): frequency bands CN470
	1400	* (% style="color:blue" %)AS923(%%): frequency bands AS923
	1401	* (% style="color:blue" %)AU915(%%): frequency bands AU915
	1402	* (% style="color:blue" %)US915(%%): frequency bands US915
	1403	* (% style="color:blue" %)IN865(%%): frequency bands IN865
	1404	* (% style="color:blue" %)RU864(%%): frequency bands RU864
	1405	* (% style="color:blue" %)KZ865(%%): frequency bands KZ865
	1406
	1407	= 9.Packing Info =
	1408
	1409
	1410	Package Includes:
	1411
	1412	* RS485-LN x 1
	1413	* Stick Antenna for LoRa RF part x 1
	1414	* Program cable x 1
	1415
	1416	Dimension and weight:
	1417
	1418	* Device Size: 13.5 x 7 x 3 cm
	1419	* Device Weight: 105g
	1420	* Package Size / pcs : 14.5 x 8 x 5 cm
	1421	* Weight / pcs : 170g
	1422
	1423	= 10. FCC Caution for RS485LN-US915 =
	1424
	1425	(((
	1426	Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
	1427	)))
	1428
	1429	(((
	1430	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.
	1431	)))
	1432
	1433	(((
	1434
	1435	)))
	1436
	1437	(((
	1438	IMPORTANT NOTE:
	1439	)))
	1440
	1441	(((
	1442	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:
	1443	)))
	1444
	1445	(((
	1446	—Reorient or relocate the receiving antenna.
	1447	)))
	1448
	1449	(((
	1450	—Increase the separation between the equipment and receiver.
	1451	)))
	1452
	1453	(((
	1454	—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
	1455	)))
	1456
	1457	(((
	1458	—Consult the dealer or an experienced radio/TV technician for help.
	1459	)))
	1460
	1461	(((
	1462
	1463	)))
	1464
	1465	(((
	1466	FCC Radiation Exposure Statement:
	1467	)))
	1468
	1469	(((
	1470	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.
	1471	)))
	1472
	1473
	1474	= 11. Support =
	1475
	1476	* (((
	1477	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.
	1478	)))
	1479	* (((
	1480	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]].
	1481	)))

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

Applications