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Version 73.7 by Xiaoling on 2022/09/12 11:29
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15 **Table of Contents:**
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17 {{toc/}}
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22 (% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
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31 = 1.Introduction =
32
33
34 == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
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41 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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47 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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53 (% 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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59 (% 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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63 (% 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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70 (% 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" %)​
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73
74 == 1.2 Specifications ==
75
76
77 (% style="color:#037691" %)**Hardware System:**
78
79 * STM32L072CZT6 MCU
80 * SX1276/78 Wireless Chip 
81 * Power Consumption (exclude RS485 device):
82 ** Idle: 32mA@12v
83 ** 20dB Transmit: 65mA@12v
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85
86 (% style="color:#037691" %)**Interface for Model:**
87
88 * RS485
89 * Power Input 7~~ 24V DC. 
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91
92 (% style="color:#037691" %)**LoRa Spec:**
93
94 * Frequency Range:
95 ** Band 1 (HF): 862 ~~ 1020 Mhz
96 ** Band 2 (LF): 410 ~~ 528 Mhz
97 * 168 dB maximum link budget.
98 * +20 dBm - 100 mW constant RF output vs.
99 * +14 dBm high efficiency PA.
100 * Programmable bit rate up to 300 kbps.
101 * High sensitivity: down to -148 dBm.
102 * Bullet-proof front end: IIP3 = -12.5 dBm.
103 * Excellent blocking immunity.
104 * Low RX current of 10.3 mA, 200 nA register retention.
105 * Fully integrated synthesizer with a resolution of 61 Hz.
106 * FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
107 * Built-in bit synchronizer for clock recovery.
108 * Preamble detection.
109 * 127 dB Dynamic Range RSSI.
110 * Automatic RF Sense and CAD with ultra-fast AFC.
111 * Packet engine up to 256 bytes with CRC
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113
114
115 == 1.3 Features ==
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117
118 * LoRaWAN Class A & Class C protocol (default Class C)
119 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
120 * AT Commands to change parameters
121 * Remote configure parameters via LoRa Downlink
122 * Firmware upgradable via program port
123 * Support multiply RS485 devices by flexible rules
124 * Support Modbus protocol
125 * Support Interrupt uplink (Since hardware version v1.2)
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127
128
129 == 1.4 Applications ==
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131
132 * Smart Buildings & Home Automation
133 * Logistics and Supply Chain Management
134 * Smart Metering
135 * Smart Agriculture
136 * Smart Cities
137 * Smart Factory
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139
140
141 == 1.5 Firmware Change log ==
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144 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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148 == 1.6 Hardware Change log ==
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154 v1.2: Add External Interrupt Pin.
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158 v1.0: Release
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165
166 = 2. Power ON Device =
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170 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
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172 * Power Source VIN to RS485-LN VIN+
173 * Power Source GND to RS485-LN VIN-
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176 Once there is power, the RS485-LN will be on.
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179 (% 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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184
185 = 3. Operation Mode =
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187
188 == 3.1 How it works? ==
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193 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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199
200 == 3.2 Example to join LoRaWAN network ==
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203 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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206 (% 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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211 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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215 485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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220 (% 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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224 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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230 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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234 Each RS485-LN is shipped with a sticker with unique device EUI:
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238 (% 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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243 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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249 **Add APP EUI in the application.**
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253 (% 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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255 (% 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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257 (% 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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259 (% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
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262 (% title="Click and drag to resize" %)​
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264 You can also choose to create the device manually.
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266 (% 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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270 **Add APP KEY and DEV EUI**
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272 (% 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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277 (% 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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282 (% 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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285
286 == 3.3 Configure Commands to read data ==
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289 (((
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292 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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300 (% 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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307
308 === 3.3.1 Configure UART settings for RS485 or TTL communication ===
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311 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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314 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
315 |=(% style="width: 110px;" %)(((
316 **AT Commands**
317 )))|=(% style="width: 190px;" %)(((
318 **Description**
319 )))|=(% style="width: 190px;" %)(((
320 **Example**
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322 |(% style="width:110px" %)(((
323 AT+BAUDR
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325 Set the baud rate (for RS485 connection). Default Value is: 9600.
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328 AT+BAUDR=9600
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332 Options: (1200,2400,4800,14400,19200,115200)
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335 |(% style="width:110px" %)(((
336 AT+PARITY
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338 Set UART parity (for RS485 connection)
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341 AT+PARITY=0
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345 Option: 0: no parity, 1: odd parity, 2: even parity
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348 |(% style="width:110px" %)(((
349 AT+STOPBIT
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352 Set serial stopbit (for RS485 connection)
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360 AT+STOPBIT=0 for 1bit
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364 AT+STOPBIT=1 for 1.5 bit
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368 AT+STOPBIT=2 for 2 bits
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372
373
374 === 3.3.2 Configure sensors ===
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379 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.
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385 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
386 |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
387 |AT+CFGDEV|(% style="width:110px" %)(((
388 (((
389 This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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392 (((
393 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
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397 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
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399 )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
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401
402
403 === 3.3.3 Configure read commands for each sampling ===
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406 (((
407 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.
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409 To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
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411 This section describes how to achieve above goals.
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413 During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
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416 (% style="color:#037691" %)**Each RS485 commands include two parts:**
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418
419 ~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.
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421 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.
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423 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
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426 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
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428 Below are examples for the how above AT Commands works.
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431 (% 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:
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433 (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
434 |(% style="width:496px" %)(((
435 (% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
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437 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
438
439 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
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441
442 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.
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444 In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
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446
447 (% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
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449 (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
450 |(% style="width:510px" %)(((
451 **AT+DATACUTx=a,b,c**
452
453 * **a: length for the return of AT+COMMAND**
454 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
455 * **c: define the position for valid value.  **
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457
458 **Examples:**
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460
461 * (% style="color:#037691" %)**Grab bytes**
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463 (% 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" %)​
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466
467 * (% style="color:#037691" %)**Grab a section**
468
469 (% 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" %)​
470
471
472
473 * (% style="color:#037691" %)**Grab different sections**
474
475 (% 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" %)​
476
477
478
479 )))
480
481 === 3.3.4 Compose the uplink payload ===
482
483
484 (((
485 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.**
486
487
488 )))
489
490 (((
491 (% style="color:#037691" %)**Examples: AT+DATAUP=0**
492
493
494 )))
495
496 (((
497 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
498 )))
499
500 (((
501 Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
502 )))
503
504 (((
505 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
506
507
508 )))
509
510 (% 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" %)​
511
512
513 (% style="color:#037691" %)**Examples: AT+DATAUP=1**
514
515
516 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
517
518 Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
519
520
521 1. PAYVER: Defined by AT+PAYVER
522 1. PAYLOAD COUNT: Total how many uplinks of this sampling.
523 1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
524 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
525
526
527 (% 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" %)​
528
529
530 So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
531
532 DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
533
534 DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
535
536 DATA3=the rest of Valid value of RETURN10= **30**
537
538
539 (% 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:**
540
541
542 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
543
544 * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
545
546 * For US915 band, max 11 bytes for each uplink.
547
548 ~* For all other bands: max 51 bytes for each uplink.
549
550 (% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
551
552 (% style="color:red" %)** When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value. (Since v1.4.0)**
553
554
555 (% style="color:#4f81bd" %)**If the data is empty, return to the display（Since v1.4.0）**
556
557 1 )  When (% style="color:blue" %)**AT+MOD=1**(%%), if the data intercepted by** AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n FFs**.
558
559
560 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114359-3.png?width=1106&height=297&rev=1.1||alt="image-20220824114359-3.png" height="297" width="1106"]]
561
562
563
564 2 )  When (% style="color:blue" %)**AT+MOD=2**(%%), if the data intercepted by **AT+DATACUT** or **AT+MBFUN** is empty, it will display **NULL**, and the payload will be filled with **n 00s**.
565
566
567 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/test/WebHome/image-20220824114330-2.png?rev=1.1||alt="image-20220824114330-2.png"]]
568
569
570
571 Below are the uplink payloads:
572
573
574 (% 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" %)​
575
576
577
578 === 3.3.5 Uplink on demand ===
579
580
581 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.
582
583 (% style="color:blue" %)**Downlink control command:**
584
585 (% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
586
587 (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
588
589
590
591 === 3.3.6 Uplink on Interrupt ===
592
593
594 RS485-LN support external Interrupt uplink since hardware v1.2 release.
595
596
597 (% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
598
599 Connect the Interrupt pin to RS485-LN INT port and connect the GND pin to V- port. When there is a high voltage (Max 24v) on INT pin. Device will send an uplink packet.
600
601
602
603 == 3.4 Uplink Payload ==
604
605
606 (% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
607
608 (% title="Click and drag to resize" %)​
609
610 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
611
612
613
614 == 3.5 Configure RS485-LN via AT or Downlink ==
615
616
617 (((
618 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
619 )))
620
621 (((
622 There are two kinds of Commands:
623 )))
624
625 * (((
626 (% 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]]
627 )))
628
629 * (((
630 (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
631 )))
632
633 (((
634
635 )))
636
637
638
639 === 3.5.1 Common Commands ===
640
641
642 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]]
643
644
645
646 === 3.5.2 Downlink Response(Since firmware v1.4) ===
647
648
649 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.
650
651 (% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]](% title="Click and drag to resize" %)​
652
653 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)
654
655
656
657 === 3.5.3 Sensor related commands ===
658
659
660
661
662 ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
663
664
665 (((
666 This command is used to configure the RS485 devices; they won't be used during sampling.
667 )))
668
669 (((
670 * (% style="color:#037691" %)**AT Command**
671
672
673 (((
674 (% style="color:#4472c4" %)** 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
675 )))
676 )))
677
678 (((
679
680 )))
681
682 * (((
683 (% style="color:#037691" %)**Downlink Payload**
684 )))
685
686 (((
687 Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
688 )))
689
690 (((
691 Where:
692 )))
693
694 * (((
695 MM: 1: add CRC-16/MODBUS ; 0: no CRC
696 )))
697 * (((
698 NN: The length of RS485 command
699 )))
700 * (((
701 XX XX XX XX: RS485 command total NN bytes
702 )))
703 * (((
704 (((
705 YY: How many bytes will be uplink from the return of this RS485 command,
706 )))
707
708 * (((
709 if YY=0, RS485-LN will execute the downlink command without uplink;
710 )))
711 * (((
712 if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
713 )))
714 * (((
715 if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
716 )))
717 )))
718
719 (((
720
721
722 (% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
723 )))
724
725 (((
726 To connect a Modbus Alarm with below commands.
727 )))
728
729 * (((
730 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.
731 )))
732
733 * (((
734 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.
735 )))
736
737 (((
738
739
740 So if user want to use downlink command to control to RS485 Alarm, he can use:
741 )))
742
743 (((
744 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
745 )))
746
747 (((
748 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
749 )))
750
751 (((
752 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.
753 )))
754
755 (((
756
757 )))
758
759 (((
760 (% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
761 )))
762
763 (((
764 User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
765 )))
766
767 (((
768
769 )))
770
771 (((
772 (((
773 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**
774 )))
775
776
777 )))
778
779 (((
780 (% 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" %)​
781 )))
782
783
784
785
786 ==== (% style="color:blue" %)**Set Payload version**(%%) ====
787
788
789 (((
790 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.
791 )))
792
793 (((
794 * (% style="color:#037691" %)**AT Command:**
795
796
797 (% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
798
799
800 )))
801
802 * (((
803 (% style="color:#037691" %)**Downlink Payload:**
804 )))
805
806 (((
807 (% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
808 )))
809
810 (((
811 (% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
812 )))
813
814
815 1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)
816
817 [[image:image-20220824145428-2.png||height="168" width="1300"]]
818
819
820 2 )  if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.
821
822
823 [[image:image-20220824145428-3.png||height="308" width="1200"]]
824
825
826
827
828 ==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
829
830
831 (((
832 AT+COMMANDx or AT+DATACUTx
833 )))
834
835 (((
836 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"]].
837 )))
838
839 (((
840
841 )))
842
843 * (((
844 (% style="color:#037691" %)**AT Command:**
845 )))
846
847 (% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
848
849 (% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
850
851
852 * (((
853 (% style="color:#037691" %)**Downlink Payload:**
854 )))
855
856 (((
857 (% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
858
859
860 )))
861
862 (((
863 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
864
865
866 )))
867
868 (((
869 Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
870 )))
871
872 (((
873 Where:
874 )))
875
876 * (((
877 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
878 )))
879 * (((
880 NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
881 )))
882 * (((
883 LL:  The length of AT+COMMAND or AT+DATACUT command
884 )))
885 * (((
886 XX XX XX XX: AT+COMMAND or AT+DATACUT command
887 )))
888 * (((
889 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.
890 )))
891
892 (((
893
894
895 **Example:**
896 )))
897
898 (((
899 (% 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
900 )))
901
902 (((
903 (% 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**
904 )))
905
906 (((
907 (% 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**
908 )))
909
910
911
912
913 ==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
914
915
916 (((
917 (% style="color:#4472c4" %)** 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]].
918 )))
919
920 (((
921 This command is valid since v1.3 firmware version
922 )))
923
924 (((
925 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.
926 )))
927
928 (((
929
930 )))
931
932 (((
933 **Example:**
934 )))
935
936 * (((
937 AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
938 )))
939 * (((
940 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.
941 )))
942 * (((
943 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.
944
945
946 )))
947
948 (% 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" %)​
949
950 (% 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" %)​
951
952
953
954
955 ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
956
957
958 (((
959 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.
960 )))
961
962 (((
963 Default value: 0, range:  0 ~~ 65 seconds
964 )))
965
966 (((
967 * (% style="color:#037691" %)** AT Command:**
968
969
970 (% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
971 )))
972
973 (((
974
975
976 **Example:**
977 )))
978
979 (((
980 (% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
981 )))
982
983 (((
984
985 )))
986
987 * (((
988 (% style="color:#037691" %)** Downlink Payload:**
989 )))
990
991 (((
992 (% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
993 )))
994
995 (((
996
997
998 **Example:**
999 )))
1000
1001 (((
1002 **0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
1003 )))
1004
1005
1006
1007
1008 ==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
1009
1010
1011 (((
1012 Define to use one uplink or multiple uplinks for the sampling.
1013 )))
1014
1015 (((
1016 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
1017
1018
1019 )))
1020
1021 (((
1022 * (% style="color:#037691" %)** AT Command:**
1023
1024
1025 (% style="color:#4472c4" %)** AT+DATAUP=0**
1026
1027 (% style="color:#4472c4" %)** AT+DATAUP=1**
1028
1029
1030 )))
1031
1032 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1033
1034 Each uplink is sent to the server at 20-second intervals when segmented.
1035
1036
1037 * (((
1038 (% style="color:#037691" %)** Downlink Payload:**
1039 )))
1040
1041 (% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
1042
1043 (% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
1044
1045
1046 * (((
1047 (% style="color:#037691" %)** AT Command:**
1048 )))
1049
1050 (% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
1051
1052
1053 * (((
1054 (% style="color:#037691" %)** Downlink Payload:**
1055 )))
1056
1057 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1058
1059 Each uplink is sent to the server at 20-second intervals when segmented.
1060
1061
1062
1063
1064 ==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1065
1066
1067 (((
1068 Ask device to send an uplink immediately.
1069 )))
1070
1071 * (((
1072 (% style="color:#037691" %)** AT Command:**
1073 )))
1074
1075 (((
1076 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1077 )))
1078
1079 (((
1080
1081 )))
1082
1083 * (((
1084 (% style="color:#037691" %)** Downlink Payload:**
1085 )))
1086
1087 (((
1088 (% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
1089 )))
1090
1091
1092
1093
1094 ==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1095
1096
1097 (((
1098 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1099
1100
1101 )))
1102
1103 * (((
1104 (% style="color:#037691" %)** AT Command:**
1105 )))
1106
1107 (((
1108 (% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
1109 )))
1110
1111 (((
1112
1113
1114 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1115 )))
1116
1117 (((
1118 Example screen shot after clear all RS485 commands. 
1119 )))
1120
1121 (((
1122
1123 )))
1124
1125 (((
1126 The uplink screen shot is:
1127 )))
1128
1129 (% 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" %)​
1130
1131
1132 * (((
1133 (% style="color:#037691" %)** Downlink Payload:**
1134 )))
1135
1136 (((
1137 (% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
1138 )))
1139
1140
1141
1142
1143 ==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
1144
1145
1146 (((
1147 Set the Rs485 serial communication parameters:
1148
1149
1150 )))
1151
1152 * (((
1153 (% style="color:#037691" %)** AT Command:**
1154
1155
1156
1157 )))
1158
1159 (((
1160 * Set Baud Rate
1161 )))
1162
1163 (% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
1164
1165
1166 (((
1167 * Set UART Parity
1168 )))
1169
1170 (% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
1171
1172
1173 (((
1174 * Set STOPBIT
1175 )))
1176
1177 (% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1178
1179
1180
1181 * (((
1182 (% style="color:#037691" %)** Downlink Payload:**
1183 )))
1184
1185 (((
1186 (% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
1187 )))
1188
1189 (((
1190
1191
1192 **Example:**
1193 )))
1194
1195 * (((
1196 A7 01 00 60  same as AT+BAUDR=9600
1197 )))
1198 * (((
1199 A7 01 04 80  same as AT+BAUDR=115200
1200 )))
1201
1202 (((
1203 * A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1204 )))
1205
1206 (((
1207 * A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1208 )))
1209
1210
1211
1212
1213
1214 ==== (% style="color:blue" %)**Encrypted payload**(%%) ====
1215
1216 (((
1217
1218 )))
1219
1220 * (((
1221 (% style="color:#037691" %)** AT Command:**
1222 )))
1223
1224 (% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
1225
1226 (% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
1227
1228
1229
1230
1231 ==== (% style="color:blue" %)**Get sensor value**(%%) ====
1232
1233
1234 * (((
1235 (% style="color:#037691" %)** AT Command:**
1236 )))
1237
1238 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
1239
1240 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
1241
1242
1243
1244
1245 ==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
1246
1247
1248 * (((
1249 (% style="color:#037691" %)** AT Command:**
1250 )))
1251
1252 (% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1253
1254 (% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
1255
1256
1257
1258
1259 ==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
1260
1261
1262 * (((
1263 (% style="color:#037691" %)** AT Command:**
1264 )))
1265
1266 (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1267
1268 (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1269
1270
1271 * (((
1272 (% style="color:#037691" %)** Downlink Payload:**
1273 )))
1274
1275 (% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1276
1277
1278
1279
1280 ==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
1281
1282
1283 * (((
1284 (% style="color:#037691" %)** AT Command:**
1285 )))
1286
1287 (% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1288
1289
1290 Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1291
1292
1293 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1294
1295
1296
1297 For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1298
1299
1300 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1301
1302
1303 For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1304
1305
1306
1307
1308 ==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
1309
1310
1311 (((
1312 * (% style="color:#037691" %)**Downlink Payload:**
1313
1314
1315 (% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1316 )))
1317
1318
1319 Example：
1320
1321
1322 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1323
1324
1325
1326
1327 ==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
1328
1329
1330 * (((
1331 (% style="color:#037691" %)** AT Command:**
1332 )))
1333
1334 (% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
1335
1336 (% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
1337
1338 (% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/ Disable this mode (default)
1339
1340
1341 * (((
1342 (% style="color:#037691" %)**Downlink Payload:**
1343 )))
1344
1345 (% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
1346
1347 [[image:image-20220824144240-1.png]]
1348
1349
1350
1351 == 3.6 Listening mode for RS485 network ==
1352
1353
1354 (((
1355 This feature support since firmware v1.4
1356 )))
1357
1358 (((
1359 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.
1360
1361
1362 )))
1363
1364 (% 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" %)​
1365
1366 (((
1367 To enable the listening mode, use can run the command AT+RXMODE.
1368 )))
1369
1370 (((
1371
1372 )))
1373
1374 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1375 |=(% style="width: 100px;" %)(((
1376 **Command example**
1377 )))|=(% style="width: 400px;" %)(((
1378 **Function**
1379 )))
1380 |(% style="width:100px" %)(((
1381 AT+RXMODE=1,10
1382 )))|(% style="width:400px" %)(((
1383 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.
1384 )))
1385 |(% style="width:100px" %)(((
1386 AT+RXMODE=2,500
1387 )))|(% style="width:400px" %)(((
1388 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
1389 )))
1390 |(% style="width:100px" %)(((
1391 AT+RXMODE=0,0
1392 )))|(% style="width:400px" %)(((
1393 Disable listening mode. This is the default settings.
1394 )))
1395 |(% style="width:100px" %)(((
1396
1397 )))|(% style="width:400px" %)(((
1398 A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1399 )))
1400
1401 (((
1402 (% style="color:#037691" %)** Downlink Command:**
1403 )))
1404
1405 (((
1406 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1407 )))
1408
1409 (((
1410
1411 )))
1412
1413 (((
1414 **Example**:
1415 )))
1416
1417 (((
1418 The RS485-LN is set to AT+RXMODE=2,1000
1419 )))
1420
1421 (((
1422 There is a two Modbus commands in the RS485 network as below:
1423 )))
1424
1425 (((
1426 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1427 )))
1428
1429 (((
1430 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1431 )))
1432
1433 (((
1434 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
1435 )))
1436
1437 (((
1438 (% 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" %)​
1439 )))
1440
1441 (((
1442
1443 )))
1444
1445 (((
1446 (((
1447 (% 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.**
1448 )))
1449 )))
1450
1451
1452
1453 == 3.7 Buttons ==
1454
1455
1456 (% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1457 |=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1458 |(% 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**
1459 |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1460 |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1461
1462 == 3.8 LEDs ==
1463
1464
1465 (% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1466 |=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1467 |**PWR**|Always on if there is power
1468 |**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.
1469
1470 = 4. Case Study =
1471
1472
1473 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]]
1474
1475
1476
1477 = 5. Use AT Command =
1478
1479
1480 == 5.1 Access AT Command ==
1481
1482
1483 (((
1484 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.
1485 )))
1486
1487 (% 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" %)​
1488
1489
1490 (((
1491 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:
1492 )))
1493
1494 (% 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" %)​
1495
1496
1497 (((
1498 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/]]
1499 )))
1500
1501
1502
1503 == 5.2 Common AT Command Sequence ==
1504
1505
1506 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1507
1508
1509 If device has not joined network yet:
1510
1511 * (% style="color:#037691" %)**AT+FDR**
1512 * (% style="color:#037691" %)**AT+NJM=0**
1513 * (% style="color:#037691" %)**ATZ**
1514
1515 (((
1516
1517
1518 If device already joined network:
1519
1520 * (% style="color:#037691" %)**AT+NJM=0**
1521 * (% style="color:#037691" %)**ATZ**
1522
1523
1524 )))
1525
1526
1527
1528 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1529
1530
1531 (% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1532
1533 (% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1534
1535 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1536
1537 (% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1538
1539 (% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1540
1541 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1542
1543 (% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1544
1545 (% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1546
1547 (% 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.
1548
1549 (% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1550
1551
1552 (% style="color:red" %)**Note:**
1553
1554 (((
1555 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1556 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1557 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.
1558 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
1559
1560
1561 )))
1562
1563 (% 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" %)​
1564
1565
1566
1567 = 6. FAQ =
1568
1569
1570 == 6.1 How to upgrade the image? ==
1571
1572
1573 (((
1574 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1575 )))
1576
1577 * (((
1578 Support new features
1579 )))
1580 * (((
1581 For bug fix
1582 )))
1583 * (((
1584 Change LoRaWAN bands.
1585 )))
1586
1587 (((
1588 Below shows the hardware connection for how to upload an image to RS485-LN:
1589 )))
1590
1591 (% 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"]]
1592
1593 (% title="Click and drag to resize" %)​
1594
1595 (((
1596 (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1597 )))
1598
1599 (((
1600 (% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]].
1601 )))
1602
1603 (((
1604 (% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1605 )))
1606
1607 (((
1608 (((
1609 (((
1610 (% 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.
1611 )))
1612 )))
1613 )))
1614
1615
1616 (% 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" %)​
1617
1618
1619 (% 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" %)​
1620
1621
1622 (% 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" %)​
1623
1624
1625 (% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1626
1627 (% 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" %)​
1628
1629
1630
1631 == 6.2 How to change the LoRa Frequency Bands/Region? ==
1632
1633
1634 User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1635
1636
1637
1638 == 6.3 How many RS485-Slave can RS485-LN connects? ==
1639
1640
1641 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"]].
1642
1643
1644
1645 == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1646
1647
1648 When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1649
1650 Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1651
1652
1653
1654 == 6.5 Can i use point to point communication for RS485-LN? ==
1655
1656
1657 Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1658
1659
1660
1661 == 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1662
1663
1664 [[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1665
1666
1667
1668 = 7. Trouble Shooting =
1669
1670
1671 == 7.1 Downlink doesn't work, how to solve it? ==
1672
1673
1674 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1675
1676
1677
1678 == 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1679
1680
1681 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1682
1683
1684
1685 = 8. Order Info =
1686
1687
1688 (% style="color:blue" %)**Part Number: RS485-LN-XXX**
1689
1690 (% style="color:blue" %)**XXX:**
1691
1692 * (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1693 * (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1694 * (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1695 * (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1696 * (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1697 * (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1698 * (% style="color:red" %)**US915**(%%):  frequency bands US915
1699 * (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1700 * (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1701 * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1702
1703 = 9.Packing Info =
1704
1705
1706 **Package Includes**:
1707
1708 * RS485-LN x 1
1709 * Stick Antenna for LoRa RF part x 1
1710 * Program cable x 1
1711
1712 **Dimension and weight**:
1713
1714 * Device Size: 13.5 x 7 x 3 cm
1715 * Device Weight: 105g
1716 * Package Size / pcs : 14.5 x 8 x 5 cm
1717 * Weight / pcs : 170g
1718
1719 = 10. FCC Caution for RS485LN-US915 =
1720
1721
1722 (((
1723 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1724 )))
1725
1726 (((
1727 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.
1728 )))
1729
1730 (((
1731
1732 )))
1733
1734 (((
1735 (% style="color:red" %)**IMPORTANT NOTE:**
1736 )))
1737
1738 (((
1739 (% style="color:red" %)**Note: **(%%)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1740 )))
1741
1742 (((
1743 —Reorient or relocate the receiving antenna.
1744 )))
1745
1746 (((
1747 —Increase the separation between the equipment and receiver.
1748 )))
1749
1750 (((
1751 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1752 )))
1753
1754 (((
1755 —Consult the dealer or an experienced radio/TV technician for help.
1756 )))
1757
1758 (((
1759
1760 )))
1761
1762 (((
1763 (% style="color:red" %)**FCC Radiation Exposure Statement:**
1764 )))
1765
1766 (((
1767 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.
1768 )))
1769
1770
1771
1772 = 11. Support =
1773
1774
1775 * (((
1776 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.
1777 )))
1778 * (((
1779 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]].
1780
1781
1782
1783 )))