Version 61.6 by Xiaoling on 2022/06/14 11:40
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15 **Table of Contents:**
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25
26 * [[1.Introduction>>doc:null||anchor="H1.Introduction"]]
27 ** [[1.1 What is RS485-LN RS485 to LoRaWAN Converter>>doc:null||anchor="H1.1A0WhatisRS485-LNRS485toLoRaWANConverter"]]
28 ** [[1.2 Specifications>>doc:null||anchor="H1.2A0Specifications"]]
29 ** [[1.3 Features>>doc:null||anchor="H1.3Features"]]
30 ** [[1.4 Applications>>doc:null||anchor="H1.4A0Applications"]]
31 ** [[1.5 Firmware Change log>>doc:null||anchor="H1.5A0FirmwareChangelog"]]
32 ** [[1.6 Hardware Change log>>doc:null||anchor="H1.6HardwareChangelog"]]
33 * [[2. Power ON Device>>doc:null||anchor="H2.PowerONDevice"]]
34 * [[3. Operation Mode>>doc:null||anchor="H3.A0OperationMode"]]
35 ** [[3.1 How it works?>>doc:null||anchor="H3.1Howitworks3F"]]
36 ** [[3.2 Example to join LoRaWAN network>>doc:null||anchor="H3.2ExampletojoinLoRaWANnetwork"]]
37 ** [[3.3 Configure Commands to read data>>doc:null||anchor="H3.3ConfigureCommandstoreaddata"]]
38 *** [[3.3.1 onfigure UART settings for RS485 or TTL communication>>doc:null||anchor="H3.3.1onfigureUARTsettingsforRS485orTTLcommunication"]]
39 *** [[3.3.2 Configure sensors>>doc:null||anchor="H3.3.2Configuresensors"]]
40 *** [[3.3.3 Configure read commands for each sampling>>doc:null||anchor="H3.3.3Configurereadcommandsforeachsampling"]]
41 *** [[3.3.4 Compose the uplink payload>>doc:null||anchor="H3.3.4Composetheuplinkpayload"]]
42 *** [[3.3.5 Uplink on demand>>doc:null||anchor="H3.3.5Uplinkondemand"]]
43 *** [[3.3.6 Uplink on Interrupt>>doc:null||anchor="H3.3.6UplinkonInterrupt"]]
44 ** [[3.4 Uplink Payload>>doc:null||anchor="H3.4UplinkPayload"]]
45 ** [[3.5 Configure RS485-LN via AT or Downlink>>doc:null||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]]
46 *** [[3.5.1 Common Commands>>doc:null||anchor="H3.5.1CommonCommands"]]
47 *** [[3.5.2 Sensor related commands>>doc:null||anchor="H3.5.2Sensorrelatedcommands"]]
48 *** [[3.5.3 Sensor related commands>>doc:null||anchor="H3.5.3A0Sensorrelatedcommands"]]
49 **** [[RS485 Debug Command>>doc:null||anchor="HRS485DebugCommand"]]
50 **** [[Set Payload version>>doc:null||anchor="HSetPayloadversion"]]
51 **** [[Set RS485 Sampling Commands>>doc:null||anchor="HSetRS485SamplingCommands"]]
52 **** [[Fast command to handle MODBUS device>>doc:null||anchor="HFastcommandtohandleMODBUSdevice"]]
53 **** [[RS485 command timeout>>doc:null||anchor="HRS485commandtimeout"]]
54 **** [[Uplink payload mode>>doc:null||anchor="HUplinkpayloadmode"]]
55 **** [[Manually trigger an Uplink>>doc:null||anchor="HManuallytriggeranUplink"]]
56 **** [[Clear RS485 Command>>doc:null||anchor="HClearRS485Command"]]
57 **** [[Set Serial Communication Parameters>>doc:null||anchor="HSetSerialCommunicationParameters"]]
58 ** [[3.6 Listening mode for RS485 network>>doc:null||anchor="H3.6A0ListeningmodeforRS485network"]]
59 ** [[3.7 Buttons>>doc:null||anchor="H3.7Buttons"]]
60 ** [[3.8 LEDs>>doc:null||anchor="H3.8LEDs"]]
61 * [[4. Case Study>>doc:null||anchor="H4.CaseStudy"]]
62 * [[5. Use AT Command>>doc:null||anchor="H5.UseATCommand"]]
63 ** [[5.1 Access AT Command>>doc:null||anchor="H5.1AccessATCommand"]]
64 ** [[5.2 Common AT Command Sequence>>doc:null||anchor="H5.2CommonATCommandSequence"]]
65 *** [[5.2.1 Multi-channel ABP mode (Use with SX1301/LG308)>>doc:null||anchor="H5.2.1Multi-channelABPmode28UsewithSX13012FLG30829"]]
66 *** [[5.5.2 Single-channel ABP mode (Use with LG01/LG02)>>doc:null||anchor="H5.5.2Single-channelABPmode28UsewithLG012FLG0229"]]
67 * [[6. FAQ>>doc:null||anchor="H6.FAQ"]]
68 ** [[6.1 How to upgrade the image?>>doc:null||anchor="H6.1Howtoupgradetheimage3F"]]
69 ** [[6.2 How to change the LoRa Frequency Bands/Region?>>doc:null||anchor="H6.2HowtochangetheLoRaFrequencyBands2FRegion3F"]]
70 ** [[6.3 How many RS485-Slave can RS485-LN connects?>>doc:null||anchor="H6.3HowmanyRS485-SlavecanRS485-LNconnects3F"]]
71 ** [[6.4 Compatible question to ChirpStack and TTI LoRaWAN server ?>>doc:null||anchor="H6.4CompatiblequestiontoChirpStackandTTILoRaWANserver3F"]]
72 * [[7. Trouble Shooting>>doc:null||anchor="H7.TroubleShooting"]]
73 ** [[7.1 Downlink doesn’t work, how to solve it?>>doc:null||anchor="H7.1Downlinkdoesn2019twork2Chowtosolveit3F"]]
74 ** [[7.2 Why I can’t join TTN V3 in US915 /AU915 bands?>>doc:null||anchor="H7.2WhyIcan2019tjoinTTNV3inUS9152FAU915bands3F"]]
75 * [[8. Order Info>>doc:null||anchor="H8.OrderInfo"]]
76 * [[9.Packing Info>>doc:null||anchor="H9.PackingInfo"]]
77 * [[10. FCC Caution for RS485LN-US915>>doc:null||anchor="H10.FCCCautionforRS485LN-US915"]]
78 * [[11. Support>>doc:null||anchor="H11.Support"]]
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81 (% 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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90 = 1.Introduction =
91
92 == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
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99 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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105 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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111 (% 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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117 (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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121 (% 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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130
131 == 1.2 Specifications ==
132
133
134 **Hardware System:**
135
136 * STM32L072CZT6 MCU
137 * SX1276/78 Wireless Chip 
138 * Power Consumption (exclude RS485 device):
139 ** Idle: 32mA@12v
140 ** 20dB Transmit: 65mA@12v
141
142 **Interface for Model:**
143
144 * RS485
145 * Power Input 7~~ 24V DC. 
146
147 **LoRa Spec:**
148
149 * Frequency Range:
150 ** Band 1 (HF): 862 ~~ 1020 Mhz
151 ** Band 2 (LF): 410 ~~ 528 Mhz
152 * 168 dB maximum link budget.
153 * +20 dBm - 100 mW constant RF output vs.
154 * +14 dBm high efficiency PA.
155 * Programmable bit rate up to 300 kbps.
156 * High sensitivity: down to -148 dBm.
157 * Bullet-proof front end: IIP3 = -12.5 dBm.
158 * Excellent blocking immunity.
159 * Low RX current of 10.3 mA, 200 nA register retention.
160 * Fully integrated synthesizer with a resolution of 61 Hz.
161 * FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
162 * Built-in bit synchronizer for clock recovery.
163 * Preamble detection.
164 * 127 dB Dynamic Range RSSI.
165 * Automatic RF Sense and CAD with ultra-fast AFC.
166 * Packet engine up to 256 bytes with CRC
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168
169 == 1.3 Features ==
170
171 * LoRaWAN Class A & Class C protocol (default Class C)
172 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
173 * AT Commands to change parameters
174 * Remote configure parameters via LoRa Downlink
175 * Firmware upgradable via program port
176 * Support multiply RS485 devices by flexible rules
177 * Support Modbus protocol
178 * Support Interrupt uplink (Since hardware version v1.2)
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180
181 == 1.4 Applications ==
182
183 * Smart Buildings & Home Automation
184 * Logistics and Supply Chain Management
185 * Smart Metering
186 * Smart Agriculture
187 * Smart Cities
188 * Smart Factory
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190
191 == 1.5 Firmware Change log ==
192
193 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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195
196 == 1.6 Hardware Change log ==
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201 v1.2: Add External Interrupt Pin.
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205 v1.0: Release
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211
212 = 2. Power ON Device =
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215 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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217 * Power Source VIN to RS485-LN VIN+
218 * Power Source GND to RS485-LN VIN-
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221 Once there is power, the RS485-LN will be on.
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224 (% 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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229 = 3. Operation Mode =
230
231 == 3.1 How it works? ==
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235 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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240
241 == 3.2 Example to join LoRaWAN network ==
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243 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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245 (% 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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250 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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254 485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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257 (% 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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261 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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265 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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269 Each RS485-LN is shipped with a sticker with unique device EUI:
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273 (% 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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278 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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282 **Add APP EUI in the application.**
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286 (% 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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288 (% 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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290 (% 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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292 (% 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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294 You can also choose to create the device manually.
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296 (% 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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300 **Add APP KEY and DEV EUI**
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302 (% 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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306 (% 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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309 (% 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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311
312 == 3.3 Configure Commands to read data ==
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317 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.
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323 (% 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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329
330 === 3.3.1 onfigure UART settings for RS485 or TTL communication ===
331
332 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:
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334 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
335 |=(% style="width: 110px;" %)(((
336 **AT Commands**
337 )))|=(% style="width: 190px;" %)(((
338 **Description**
339 )))|=(% style="width: 190px;" %)(((
340 **Example**
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342 |(% style="width:110px" %)(((
343 AT+BAUDR
344 )))|(% style="width:190px" %)(((
345 Set the baud rate (for RS485 connection). Default Value is: 9600.
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348 AT+BAUDR=9600
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352 Options: (1200,2400,4800,14400,19200,115200)
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355 |(% style="width:110px" %)(((
356 AT+PARITY
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358 Set UART parity (for RS485 connection)
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361 AT+PARITY=0
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365 Option: 0: no parity, 1: odd parity, 2: even parity
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368 |(% style="width:110px" %)(((
369 AT+STOPBIT
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372 Set serial stopbit (for RS485 connection)
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380 AT+STOPBIT=0 for 1bit
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384 AT+STOPBIT=1 for 1.5 bit
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388 AT+STOPBIT=2 for 2 bits
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392
393
394 === 3.3.2 Configure sensors ===
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397 (((
398 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.
399 )))
400 )))
401
402 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
403 |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
404 |AT+CFGDEV|(% style="width:110px" %)(((
405 (((
406 This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
407 )))
408
409 (((
410 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
411 )))
412
413 (((
414 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
415 )))
416 )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
417
418
419
420 === 3.3.3 Configure read commands for each sampling ===
421
422 (((
423 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.
424
425 To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
426
427 This section describes how to achieve above goals.
428
429 During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
430
431
432 (% style="color:#037691" %)**Each RS485 commands include two parts:**
433
434 ~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.
435
436 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.
437
438 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
439
440
441 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
442
443 Below are examples for the how above AT Commands works.
444
445
446 (% 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:
447
448 (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
449 |(% style="width:496px" %)(((
450 (% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
451
452 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
453
454 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
455 )))
456
457 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.
458
459 In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
460
461
462 (% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
463
464 (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
465 |(% style="width:510px" %)(((
466 **AT+DATACUTx=a,b,c**
467
468 * **a: length for the return of AT+COMMAND**
469 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
470 * **c: define the position for valid value.  **
471 )))
472
473 **Examples:**
474
475 * (% style="color:#037691" %)**Grab bytes**
476
477 (% 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" %)​
478
479
480 * (% style="color:#037691" %)**Grab a section**
481
482 (% 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" %)​
483
484
485 * (% style="color:#037691" %)**Grab different sections**
486
487 (% 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" %)​
488
489
490
491 )))
492
493 === 3.3.4 Compose the uplink payload ===
494
495 (((
496 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.**
497
498
499 )))
500
501 (((
502 (% style="color:#037691" %)**Examples: AT+DATAUP=0**
503
504
505 )))
506
507 (((
508 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
509 )))
510
511 (((
512 Final Payload is
513 )))
514
515 (((
516 (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
517 )))
518
519 (((
520 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
521 )))
522
523 (% 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" %)​
524
525
526 (% style="color:#037691" %)**Examples: AT+DATAUP=1**
527
528
529 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
530
531 Final Payload is
532
533 (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
534
535
536 1. PAYVER: Defined by AT+PAYVER
537 1. PAYLOAD COUNT: Total how many uplinks of this sampling.
538 1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
539 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
540
541 (% 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" %)​
542
543
544 So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
545
546 DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
547
548 DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
549
550 DATA3=the rest of Valid value of RETURN10= **30**
551
552
553 (% 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:
554
555 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
556
557 * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
558
559 * For US915 band, max 11 bytes for each uplink.
560
561 ~* For all other bands: max 51 bytes for each uplink.
562
563
564 Below are the uplink payloads:
565
566 (% 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" %)​
567
568
569
570 === 3.3.5 Uplink on demand ===
571
572 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.
573
574 Downlink control command:
575
576 **0x08 command**: Poll an uplink with current command set in RS485-LN.
577
578 **0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
579
580
581
582 === 3.3.6 Uplink on Interrupt ===
583
584 RS485-LN support external Interrupt uplink since hardware v1.2 release.
585
586 (% 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" %)​
587
588 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.
589
590
591 == 3.4 Uplink Payload ==
592
593
594 (% 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" %)​
595
596 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
597
598
599 == 3.5 Configure RS485-LN via AT or Downlink ==
600
601 (((
602 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
603 )))
604
605 (((
606 There are two kinds of Commands:
607 )))
608
609 * (((
610 (% 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]]
611 )))
612
613 * (((
614 (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
615 )))
616
617 (((
618
619 )))
620
621
622 === 3.5.1 Common Commands ===
623
624 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]]
625
626
627 === 3.5.2 Sensor related commands ===
628
629 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.
630
631 (% 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" %)​
632
633 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)
634
635
636 === 3.5.3 Sensor related commands ===
637
638
639
640
641 ==== (% style="color:#037691" %)**RS485 Debug Command**(%%) ====
642
643 (((
644 This command is used to configure the RS485 devices; they won’t be used during sampling.
645 )))
646
647 * (((
648 (% style="color:#037691" %)**AT Command**
649
650 **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
651
652
653 )))
654
655 (((
656 m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
657 )))
658
659 * (((
660 (% style="color:#037691" %)**Downlink Payload**
661 )))
662
663 (((
664 Format: A8 MM NN XX XX XX XX YY
665 )))
666
667 (((
668 Where:
669 )))
670
671 * (((
672 MM: 1: add CRC-16/MODBUS ; 0: no CRC
673 )))
674 * (((
675 NN: The length of RS485 command
676 )))
677 * (((
678 XX XX XX XX: RS485 command total NN bytes
679 )))
680 * (((
681 (((
682 YY: How many bytes will be uplink from the return of this RS485 command,
683 )))
684
685 * (((
686 if YY=0, RS485-LN will execute the downlink command without uplink;
687 )))
688 * (((
689 if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
690 )))
691 * (((
692 if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
693 )))
694 )))
695
696 (((
697 **Example 1** ~-~-> Configure without ask for uplink (YY=0)
698 )))
699
700 (((
701 To connect a Modbus Alarm with below commands.
702 )))
703
704 * (((
705 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.
706 )))
707
708 * (((
709 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.
710 )))
711
712 (((
713 So if user want to use downlink command to control to RS485 Alarm, he can use:
714 )))
715
716 (((
717 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
718 )))
719
720 (((
721 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
722 )))
723
724 (((
725 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.
726 )))
727
728 (((
729
730 )))
731
732 (((
733 **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
734 )))
735
736 (((
737 User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
738 )))
739
740 (((
741
742 )))
743
744 (((
745 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:
746 )))
747
748 (((
749 **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
750 )))
751
752 (((
753 (% 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" %)​
754 )))
755
756
757
758
759 ==== **Set Payload version** ====
760
761 (((
762 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.
763 )))
764
765 * (((
766 **AT Command:**
767 )))
768
769 (% class="box infomessage" %)
770 (((
771 (((
772 **AT+PAYVER: Set PAYVER field = 1**
773 )))
774 )))
775
776 * (((
777 **Downlink Payload:**
778 )))
779
780 (((
781 **0xAE 01**  ~-~-> Set PAYVER field =  0x01
782 )))
783
784 (((
785 **0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
786 )))
787
788
789
790
791 ==== **Set RS485 Sampling Commands** ====
792
793 (((
794 AT+COMMANDx or AT+DATACUTx
795 )))
796
797 (((
798 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"]].
799 )))
800
801 (((
802
803 )))
804
805 * (((
806 **AT Command:**
807 )))
808
809 (% class="box infomessage" %)
810 (((
811 (((
812 **AT+COMMANDx: Configure RS485 read command to sensor.**
813 )))
814 )))
815
816 (% class="box infomessage" %)
817 (((
818 (((
819 **AT+DATACUTx: Configure how to handle return from RS485 devices.**
820 )))
821 )))
822
823 (((
824
825 )))
826
827 * (((
828 **Downlink Payload:**
829 )))
830
831 (((
832 **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
833 )))
834
835 (((
836 (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
837 )))
838
839 (((
840 Format: AF MM NN LL XX XX XX XX YY
841 )))
842
843 (((
844 Where:
845 )))
846
847 * (((
848 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
849 )))
850 * (((
851 NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
852 )))
853 * (((
854 LL:  The length of AT+COMMAND or AT+DATACUT command
855 )))
856 * (((
857 XX XX XX XX: AT+COMMAND or AT+DATACUT command
858 )))
859 * (((
860 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.
861 )))
862
863 (((
864 **Example:**
865 )))
866
867 (((
868 (% 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
869 )))
870
871 (((
872 (% 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**
873 )))
874
875 (((
876 (% 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**
877 )))
878
879
880
881
882 ==== **Fast command to handle MODBUS device** ====
883
884 (((
885 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]].
886 )))
887
888 (((
889 This command is valid since v1.3 firmware version
890 )))
891
892 (((
893 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.
894 )))
895
896 (((
897
898 )))
899
900 (((
901 **Example:**
902 )))
903
904 * (((
905 AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
906 )))
907 * (((
908 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.
909 )))
910 * (((
911 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.
912 )))
913
914 (% 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" %)​
915
916 (% 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" %)​
917
918
919
920
921 ==== **RS485 command timeout** ====
922
923 (((
924 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.
925 )))
926
927 (((
928 Default value: 0, range:  0 ~~ 65 seconds
929 )))
930
931 * (((
932 **AT Command:**
933 )))
934
935 (% class="box infomessage" %)
936 (((
937 (((
938 **AT+CMDDLaa=hex(bb cc)*1000**
939 )))
940 )))
941
942 (((
943 **Example:**
944 )))
945
946 (((
947 **AT+CMDDL1=1000** to send the open time to 1000ms
948 )))
949
950 (((
951
952 )))
953
954 * (((
955 **Downlink Payload:**
956 )))
957
958 (((
959 **0x AA aa bb cc**
960 )))
961
962 (((
963 Same as: AT+CMDDLaa=hex(bb cc)*1000
964 )))
965
966 (((
967 **Example:**
968 )))
969
970 (((
971 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
972 )))
973
974
975
976
977 ==== **Uplink payload mode** ====
978
979 (((
980 Define to use one uplink or multiple uplinks for the sampling.
981 )))
982
983 (((
984 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
985 )))
986
987 * (((
988 **AT Command:**
989 )))
990
991 (% class="box infomessage" %)
992 (((
993 (((
994 **AT+DATAUP=0**
995 )))
996 )))
997
998 (% class="box infomessage" %)
999 (((
1000 (((
1001 **AT+DATAUP=1**
1002 )))
1003 )))
1004
1005 (((
1006
1007 )))
1008
1009 * (((
1010 **Downlink Payload:**
1011 )))
1012
1013 (((
1014 **0xAD 00**  **~-~->** Same as AT+DATAUP=0
1015 )))
1016
1017 (((
1018 **0xAD 01**  **~-~->** Same as AT+DATAUP=1
1019 )))
1020
1021
1022
1023
1024 ==== **Manually trigger an Uplink** ====
1025
1026 (((
1027 Ask device to send an uplink immediately.
1028 )))
1029
1030 * (((
1031 **AT Command:**
1032 )))
1033
1034 (((
1035 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1036 )))
1037
1038 (((
1039
1040 )))
1041
1042 * (((
1043 **Downlink Payload:**
1044 )))
1045
1046 (((
1047 **0x08 FF**, RS485-LN will immediately send an uplink.
1048 )))
1049
1050
1051
1052
1053 ==== **Clear RS485 Command** ====
1054
1055 (((
1056 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1057 )))
1058
1059 * (((
1060 **AT Command:**
1061 )))
1062
1063 (((
1064 **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
1065 )))
1066
1067 (((
1068 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1069 )))
1070
1071 (((
1072 Example screen shot after clear all RS485 commands. 
1073 )))
1074
1075 (((
1076
1077 )))
1078
1079 (((
1080 The uplink screen shot is:
1081 )))
1082
1083 (% 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" %)​
1084
1085
1086 * (((
1087 **Downlink Payload:**
1088 )))
1089
1090 (((
1091 **0x09 aa bb** same as AT+CMDEAR=aa,bb
1092 )))
1093
1094
1095
1096
1097 ==== **Set Serial Communication Parameters** ====
1098
1099 (((
1100 Set the Rs485 serial communication parameters:
1101 )))
1102
1103 * (((
1104 **AT Command:**
1105 )))
1106
1107 (((
1108 Set Baud Rate:
1109 )))
1110
1111 (% class="box infomessage" %)
1112 (((
1113 (((
1114 **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1115 )))
1116 )))
1117
1118 (((
1119 Set UART Parity
1120 )))
1121
1122 (% class="box infomessage" %)
1123 (((
1124 (((
1125 **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1126 )))
1127 )))
1128
1129 (((
1130 Set STOPBIT
1131 )))
1132
1133 (% class="box infomessage" %)
1134 (((
1135 (((
1136 **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1137 )))
1138 )))
1139
1140 (((
1141
1142 )))
1143
1144 * (((
1145 **Downlink Payload:**
1146 )))
1147
1148 (((
1149 **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1150 )))
1151
1152 (((
1153 **Example:**
1154 )))
1155
1156 * (((
1157 A7 01 00 60   same as AT+BAUDR=9600
1158 )))
1159 * (((
1160 A7 01 04 80  same as AT+BAUDR=115200
1161 )))
1162
1163 (((
1164 A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1165 )))
1166
1167 (((
1168 A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1169 )))
1170
1171
1172
1173
1174 == 3.6 Listening mode for RS485 network ==
1175
1176 (((
1177 This feature support since firmware v1.4
1178 )))
1179
1180 (((
1181 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.
1182 )))
1183
1184 (% 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" %)​
1185
1186 (((
1187 To enable the listening mode, use can run the command AT+RXMODE.
1188 )))
1189
1190 (((
1191
1192 )))
1193
1194 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1195 |=(% style="width: 100px;" %)(((
1196 **Command example**
1197 )))|=(% style="width: 400px;" %)(((
1198 **Function**
1199 )))
1200 |(% style="width:100px" %)(((
1201 AT+RXMODE=1,10
1202 )))|(% style="width:400px" %)(((
1203 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.
1204 )))
1205 |(% style="width:100px" %)(((
1206 AT+RXMODE=2,500
1207 )))|(% style="width:400px" %)(((
1208 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
1209 )))
1210 |(% style="width:100px" %)(((
1211 AT+RXMODE=0,0
1212 )))|(% style="width:400px" %)(((
1213 Disable listening mode. This is the default settings.
1214 )))
1215 |(% style="width:100px" %)(((
1216
1217 )))|(% style="width:400px" %)(((
1218 A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1219 )))
1220
1221 (((
1222 **Downlink Command:**
1223 )))
1224
1225 (((
1226 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1227 )))
1228
1229 (((
1230
1231 )))
1232
1233 (((
1234 **Example**:
1235 )))
1236
1237 (((
1238 The RS485-LN is set to AT+RXMODE=2,1000
1239 )))
1240
1241 (((
1242 There is a two Modbus commands in the RS485 network as below:
1243 )))
1244
1245 (((
1246 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1247 )))
1248
1249 (((
1250 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1251 )))
1252
1253 (((
1254 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
1255 )))
1256
1257 (((
1258 (% 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" %)​
1259 )))
1260
1261 (((
1262
1263 )))
1264
1265 (((
1266 (((
1267 (% 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.
1268 )))
1269 )))
1270
1271
1272 == 3.7 Buttons ==
1273
1274
1275 (% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1276 |=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1277 |(% 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**
1278 |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1279 |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1280
1281 == 3.8 LEDs ==
1282
1283
1284 (% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1285 |=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1286 |**PWR**|Always on if there is power
1287 |**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.
1288
1289 = 4. Case Study =
1290
1291 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]]
1292
1293
1294 = 5. Use AT Command =
1295
1296 == 5.1 Access AT Command ==
1297
1298 (((
1299 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.
1300 )))
1301
1302 (% 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" %)​
1303
1304
1305 (((
1306 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:
1307 )))
1308
1309 (% 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" %)​
1310
1311
1312 (((
1313 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/]]
1314 )))
1315
1316
1317
1318 == 5.2 Common AT Command Sequence ==
1319
1320 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1321
1322 If device has not joined network yet:
1323
1324 (% class="box infomessage" %)
1325 (((
1326 **AT+FDR**
1327 )))
1328
1329 (% class="box infomessage" %)
1330 (((
1331 **AT+NJM=0**
1332 )))
1333
1334 (% class="box infomessage" %)
1335 (((
1336 **ATZ**
1337 )))
1338
1339
1340 (((
1341 If device already joined network:
1342 )))
1343
1344 (% class="box infomessage" %)
1345 (((
1346 **AT+NJM=0**
1347 )))
1348
1349 (% class="box infomessage" %)
1350 (((
1351 **ATZ**
1352 )))
1353
1354
1355 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1356
1357
1358 (% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1359
1360 (% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1361
1362 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
1363
1364 (% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1365
1366 (% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1367
1368 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
1369
1370 (% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1371
1372 (% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1373
1374 (% 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.
1375
1376 (% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1377
1378
1379 (% style="color:red" %)**Note:**
1380
1381 (((
1382 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1383 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1384 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.
1385 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
1386 )))
1387
1388 (% 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" %)​
1389
1390
1391 = 6. FAQ =
1392
1393 == 6.1 How to upgrade the image? ==
1394
1395 (((
1396 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1397 )))
1398
1399 * (((
1400 Support new features
1401 )))
1402 * (((
1403 For bug fix
1404 )))
1405 * (((
1406 Change LoRaWAN bands.
1407 )))
1408
1409 (((
1410 Below shows the hardware connection for how to upload an image to RS485-LN:
1411 )))
1412
1413 (% 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" %)​
1414
1415 (((
1416 **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]].
1417 )))
1418
1419 (((
1420 **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1421 )))
1422
1423 (((
1424 **Step3: **Open flashloader; choose the correct COM port to update.
1425 )))
1426
1427 (((
1428 (((
1429 (((
1430 (% 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.
1431 )))
1432 )))
1433 )))
1434
1435
1436 (% 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" %)​
1437
1438
1439 (% 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" %)​
1440
1441
1442 (% 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" %)​
1443
1444
1445 **Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1446
1447 (% 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" %)​
1448
1449
1450 == 6.2 How to change the LoRa Frequency Bands/Region? ==
1451
1452 User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1453
1454
1455 == 6.3 How many RS485-Slave can RS485-LN connects? ==
1456
1457 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"]].
1458
1459
1460 == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1461
1462 When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1463
1464 Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1465
1466
1467 = 7. Trouble Shooting =
1468
1469 == 7.1 Downlink doesn’t work, how to solve it? ==
1470
1471 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1472
1473
1474 == 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1475
1476 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1477
1478
1479 = 8. Order Info =
1480
1481 (% style="color:blue" %)**Part Number: RS485-LN-XXX**
1482
1483 (% style="color:blue" %)**XXX:**
1484
1485 * (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1486 * (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1487 * (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1488 * (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1489 * (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1490 * (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1491 * (% style="color:blue" %)**US915**(%%): frequency bands US915
1492 * (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1493 * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1494 * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1495
1496 = 9.Packing Info =
1497
1498
1499 **Package Includes**:
1500
1501 * RS485-LN x 1
1502 * Stick Antenna for LoRa RF part x 1
1503 * Program cable x 1
1504
1505 **Dimension and weight**:
1506
1507 * Device Size: 13.5 x 7 x 3 cm
1508 * Device Weight: 105g
1509 * Package Size / pcs : 14.5 x 8 x 5 cm
1510 * Weight / pcs : 170g
1511
1512 = 10. FCC Caution for RS485LN-US915 =
1513
1514 (((
1515 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1516 )))
1517
1518 (((
1519 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.
1520 )))
1521
1522 (((
1523
1524 )))
1525
1526 (((
1527 **IMPORTANT NOTE:**
1528 )))
1529
1530 (((
1531 **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:
1532 )))
1533
1534 (((
1535 —Reorient or relocate the receiving antenna.
1536 )))
1537
1538 (((
1539 —Increase the separation between the equipment and receiver.
1540 )))
1541
1542 (((
1543 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1544 )))
1545
1546 (((
1547 —Consult the dealer or an experienced radio/TV technician for help.
1548 )))
1549
1550 (((
1551
1552 )))
1553
1554 (((
1555 **FCC Radiation Exposure Statement:**
1556 )))
1557
1558 (((
1559 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.
1560 )))
1561
1562
1563 = 11. Support =
1564
1565 * (((
1566 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.
1567 )))
1568 * (((
1569 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]].
1570 )))

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