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on 2022/06/06 08:46
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6 6  **RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 +
10 +
9 9  **Table of Contents:**
10 10  
13 +{{toc/}}
11 11  
12 12  
13 13  
14 14  
18 +
19 +
20 +
15 15  = 1.Introduction =
16 16  
17 17  == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
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18 18  
19 19  (((
20 20  (((
27 +(((
21 21  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.
22 22  )))
30 +)))
23 23  
24 24  (((
33 +(((
25 25  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.
26 26  )))
36 +)))
27 27  
28 28  (((
39 +(((
29 29  (% 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.
30 30  )))
42 +)))
31 31  
32 32  (((
45 +(((
33 33  (% 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.
47 +)))
34 34  
49 +(((
35 35  (% 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]]
36 36  )))
37 37  )))
53 +)))
38 38  
39 39  [[image:1653267211009-519.png||height="419" width="724"]]
40 40  
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76 76  * Automatic RF Sense and CAD with ultra-fast AFC.
77 77  * Packet engine up to 256 bytes with CRC
78 78  
79 -
80 -
81 81  == 1.3 Features ==
82 82  
83 83  * LoRaWAN Class A & Class C protocol (default Class C)
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90 90  * Support Interrupt uplink (Since hardware version v1.2)
91 91  
92 92  
93 -
94 94  == 1.4 Applications ==
95 95  
96 96  * Smart Buildings & Home Automation
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101 101  * Smart Factory
102 102  
103 103  
104 -
105 105  == 1.5 Firmware Change log ==
106 106  
107 107  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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111 111  
112 112  (((
113 113  (((
126 +(((
114 114  v1.2: Add External Interrupt Pin.
128 +)))
115 115  
130 +(((
116 116  v1.0: Release
132 +)))
117 117  
118 118  
119 119  )))
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141 141  == 3.1 How it works? ==
142 142  
143 143  (((
160 +(((
144 144  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.
162 +)))
145 145  
146 146  
147 147  )))
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217 217  
218 218  (((
219 219  (((
220 -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>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
238 +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-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
221 221  )))
222 222  
223 223  (((
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231 231  
232 232  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:
233 233  
234 -(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
235 -|(% style="width:128px" %)(((
252 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
253 +|=(% style="width: 110px;" %)(((
236 236  **AT Commands**
237 -)))|(% style="width:305px" %)(((
255 +)))|=(% style="width: 190px;" %)(((
238 238  **Description**
239 -)))|(% style="width:346px" %)(((
257 +)))|=(% style="width: 190px;" %)(((
240 240  **Example**
241 241  )))
242 -|(% style="width:128px" %)(((
260 +|(% style="width:110px" %)(((
243 243  AT+BAUDR
244 -)))|(% style="width:305px" %)(((
262 +)))|(% style="width:190px" %)(((
245 245  Set the baud rate (for RS485 connection). Default Value is: 9600.
246 -)))|(% style="width:346px" %)(((
264 +)))|(% style="width:190px" %)(((
247 247  (((
248 248  AT+BAUDR=9600
249 249  )))
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252 252  Options: (1200,2400,4800,14400,19200,115200)
253 253  )))
254 254  )))
255 -|(% style="width:128px" %)(((
273 +|(% style="width:110px" %)(((
256 256  AT+PARITY
257 -)))|(% style="width:305px" %)(((
275 +)))|(% style="width:190px" %)(((
258 258  Set UART parity (for RS485 connection)
259 -)))|(% style="width:346px" %)(((
277 +)))|(% style="width:190px" %)(((
260 260  (((
261 261  AT+PARITY=0
262 262  )))
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265 265  Option: 0: no parity, 1: odd parity, 2: even parity
266 266  )))
267 267  )))
268 -|(% style="width:128px" %)(((
286 +|(% style="width:110px" %)(((
269 269  AT+STOPBIT
270 -)))|(% style="width:305px" %)(((
288 +)))|(% style="width:190px" %)(((
271 271  (((
272 272  Set serial stopbit (for RS485 connection)
273 273  )))
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275 275  (((
276 276  
277 277  )))
278 -)))|(% style="width:346px" %)(((
296 +)))|(% style="width:190px" %)(((
279 279  (((
280 280  AT+STOPBIT=0 for 1bit
281 281  )))
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289 289  )))
290 290  )))
291 291  
310 +
311 +
292 292  === 3.3.2 Configure sensors ===
293 293  
294 294  (((
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297 297  )))
298 298  )))
299 299  
300 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
301 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
302 -|AT+CFGDEV|(% style="width:418px" %)(((
320 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
321 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
322 +|AT+CFGDEV|(% style="width:110px" %)(((
303 303  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
304 304  
305 305  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
306 306  
307 307  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
308 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
328 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
309 309  
330 +
331 +
310 310  === 3.3.3 Configure read commands for each sampling ===
311 311  
312 312  (((
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352 352  
353 353  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
354 354  
355 -(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
356 -|(% style="width:722px" %)(((
377 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
378 +|(% style="width:510px" %)(((
357 357  **AT+DATACUTx=a,b,c**
358 358  
359 359  * **a: length for the return of AT+COMMAND**
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422 422  
423 423  (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
424 424  
447 +
425 425  1. PAYVER: Defined by AT+PAYVER
426 426  1. PAYLOAD COUNT: Total how many uplinks of this sampling.
427 427  1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
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501 501  
502 502  There are two kinds of Commands:
503 503  
504 -* (% 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: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]
527 +* (% 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]]
505 505  
506 506  * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
507 507  
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521 521  
522 522  === 3.5.3 Sensor related commands ===
523 523  
524 -==== ====
525 525  
548 +
526 526  ==== **RS485 Debug Command** ====
527 527  
528 528  This command is used to configure the RS485 devices; they won’t be used during sampling.
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729 729  
730 730  * **AT Command:**
731 731  
732 -No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same.
755 +No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
733 733  
734 734  
735 735  * **Downlink Payload:**
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737 737  **0x08 FF**, RS485-LN will immediately send an uplink.
738 738  
739 739  
740 -==== ====
741 741  
742 742  ==== **Clear RS485 Command** ====
743 743  
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754 754  
755 755  The uplink screen shot is:
756 756  
757 -[[image:1654160691922-496.png]][[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]
779 +[[image:1654160691922-496.png]]
758 758  
759 759  
760 760  * **Downlink Payload:**
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853 853  |=**Button**|=(% style="width: 1420px;" %)**Feature**
854 854  |**ACT**|(% style="width:1420px" %)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**
855 855  |**RST**|(% style="width:1420px" %)Reboot RS485
856 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]
878 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
857 857  
858 858  == 3.8 LEDs ==
859 859  
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881 881  [[image:1654162368066-342.png]]
882 882  
883 883  
884 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]]
906 +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/]]
885 885  
886 886  
887 887  == 5.2 Common AT Command Sequence ==
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973 973  
974 974  **Step3: **Open flashloader; choose the correct COM port to update.
975 975  
998 +(((
976 976  (% 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.
1000 +)))
977 977  
978 978  
979 979  [[image:image-20220602175818-12.png]]
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1036 1036  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1037 1037  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1038 1038  
1063 +
1039 1039  = 9.Packing Info =
1040 1040  
1041 1041  
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1052 1052  * Package Size / pcs : 14.5 x 8 x 5 cm
1053 1053  * Weight / pcs : 170g
1054 1054  
1080 +
1055 1055  = 10. FCC Caution for RS485LN-US915 =
1056 1056  
1083 +(((
1057 1057  Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1085 +)))
1058 1058  
1087 +(((
1059 1059  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.
1089 +)))
1060 1060  
1091 +(((
1092 +
1093 +)))
1061 1061  
1095 +(((
1062 1062  **IMPORTANT NOTE:**
1097 +)))
1063 1063  
1099 +(((
1064 1064  **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:
1101 +)))
1065 1065  
1103 +(((
1066 1066  —Reorient or relocate the receiving antenna.
1105 +)))
1067 1067  
1107 +(((
1068 1068  —Increase the separation between the equipment and receiver.
1109 +)))
1069 1069  
1111 +(((
1070 1070  —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1113 +)))
1071 1071  
1115 +(((
1072 1072  —Consult the dealer or an experienced radio/TV technician for help.
1117 +)))
1073 1073  
1119 +(((
1120 +
1121 +)))
1074 1074  
1123 +(((
1075 1075  **FCC Radiation Exposure Statement:**
1125 +)))
1076 1076  
1127 +(((
1077 1077  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.
1129 +)))
1078 1078  
1079 1079  
1080 1080  = 11. Support =
1081 1081  
1082 -* 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.
1083 -* 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]].
1134 +* (((
1135 +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.
1136 +)))
1137 +* (((
1138 +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]].
1139 +)))
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