Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 73.3 >
edited by Xiaoling
on 2022/09/12 10:36
To version < 72.1 >
edited by Bei Jinggeng
on 2022/08/24 14:56
>
Change comment: There is no comment for this version

Summary

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Author
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1 -XWiki.Xiaoling
1 +XWiki.Bei
Content
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30 30  
31 31  = 1.Introduction =
32 32  
33 -
34 34  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
35 35  
36 36  (((
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82 82  ** Idle: 32mA@12v
83 83  ** 20dB Transmit: 65mA@12v
84 84  
85 -
86 -
87 87  (% style="color:#037691" %)**Interface for Model:**
88 88  
89 89  * RS485
90 90  * Power Input 7~~ 24V DC. 
91 91  
92 -
93 -
94 94  (% style="color:#037691" %)**LoRa Spec:**
95 95  
96 96  * Frequency Range:
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112 112  * Automatic RF Sense and CAD with ultra-fast AFC.
113 113  * Packet engine up to 256 bytes with CRC
114 114  
115 -
116 -
117 -
118 118  == 1.3 Features ==
119 119  
120 120  
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127 127  * Support Modbus protocol
128 128  * Support Interrupt uplink (Since hardware version v1.2)
129 129  
130 -
131 -
132 -
133 133  == 1.4 Applications ==
134 134  
135 135  
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140 140  * Smart Cities
141 141  * Smart Factory
142 142  
143 -
144 -
145 -
146 146  == 1.5 Firmware Change log ==
147 147  
148 148  
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189 189  
190 190  = 3. Operation Mode =
191 191  
192 -
193 193  == 3.1 How it works? ==
194 194  
195 195  
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207 207  
208 208  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. 
209 209  
210 -
211 211  (% 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" %)​
212 212  
213 213  
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218 218  
219 219  (((
220 220  485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
221 -
222 -
223 223  )))
224 224  
225 225  (% 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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246 246  (((
247 247  (((
248 248  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
249 -
250 -
251 251  )))
252 252  
253 253  (((
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261 261  
262 262  (% 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" %)​
263 263  
264 -(% 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"]]
244 +(% 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" %)​
265 265  
266 -
267 -(% title="Click and drag to resize" %)​
268 -
269 269  You can also choose to create the device manually.
270 270  
271 271  (% 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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277 277  (% 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" %)​
278 278  
279 279  
280 -
281 281  (((
282 282  (% 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.
283 -
284 -
285 285  )))
286 286  
287 287  (% 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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295 295  (((
296 296  (((
297 297  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.
298 -
299 -
300 300  )))
301 301  )))
302 302  
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315 315  
316 316  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:
317 317  
318 -
319 319  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
320 320  |=(% style="width: 110px;" %)(((
321 321  **AT Commands**
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374 374  )))
375 375  )))
376 376  
377 -
378 -
379 -
380 380  === 3.3.2 Configure sensors ===
381 381  
382 382  
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404 404  )))
405 405  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
406 406  
407 -
408 -
409 -
410 410  === 3.3.3 Configure read commands for each sampling ===
411 411  
412 412  
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1277 1277  
1278 1278  [[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"]]
1279 1279  
1245 +(% class="wikigeneratedid" %)
1280 1280  ==== ====
1281 1281  
1282 1282  ==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
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1288 1288  
1289 1289  **~ ​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.
1290 1290  
1291 -**~ ​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.
1257 +**~ ​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.
1292 1292  
1293 1293   **AT+RXMODE=0,0  ** ~/~/Disable this mode (default)
1294 1294  
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1297 1297  (% style="color:#037691" %)**Downlink Payload:**
1298 1298  )))
1299 1299  
1300 -**A6 aa bb bb                   ** ~/~/same as AT+RXMODE=aa,bb
1266 +**A6 aa bb bb  ** ~/~/same as AT+RXMODE=aa,bb
1301 1301  
1302 1302  [[image:image-20220824144240-1.png]]
1303 1303  
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1552 1552  )))
1553 1553  
1554 1554  (((
1555 -(% 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]].
1521 +(% style="color:blue" %)**Step2**(%%)**:** Download the [[LT Image files>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Firmware/]].
1556 1556  )))
1557 1557  
1558 1558  (((

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