Last modified by Mengting Qiu on 2025/07/14 09:59

From version 17.3
edited by Xiaoling
on 2022/05/23 08:48
Change comment: Update document after refactoring.
To version 57.38
edited by Xiaoling
on 2022/06/06 09:34
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Summary

Details

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Content
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1 1  (% style="text-align:center" %)
2 -[[image:1652947681187-144.png||height="385" width="385"]]
2 +[[image:1653266934636-343.png||height="385" width="385"]]
3 3  
4 4  
5 5  
6 +**RS485-LN – RS485 to LoRaWAN Converter User Manual**
6 6  
7 -**RS485-BL – Waterproof RS485 to LoRaWAN Converter User Manual**
8 8  
9 9  
10 +
10 10  **Table of Contents:**
11 11  
13 +{{toc/}}
12 12  
13 13  
14 14  
15 15  
18 +
19 +
20 +
16 16  = 1.Introduction =
17 17  
18 -== 1.1 What is RS485-BL RS485 to LoRaWAN Converter ==
23 +== 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
19 19  
20 20  (((
21 -
22 -)))
23 -
24 24  (((
25 -The Dragino RS485-BL is a **RS485 / UART to LoRaWAN Converter** for Internet of Things solutions. User can connect RS485 or UART sensor to RS485-BL converter, and configure RS485-BL to periodically read sensor data and upload via LoRaWAN network to IoT server.
27 +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.
26 26  )))
27 27  
28 28  (((
29 -RS485-BL can interface to RS485 sensor, 3.3v/5v UART sensor or interrupt sensor. RS485-BL provides **a 3.3v output** and** a 5v output** to power external sensors. Both output voltages are controllable to minimize the total system power consumption.
31 +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.
30 30  )))
31 31  
32 32  (((
33 -RS485-BL is IP67 **waterproof** and powered by **8500mAh Li-SOCI2 battery**, it is designed for long term use for several years.
35 +(% 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.
34 34  )))
35 35  
36 36  (((
37 -RS485-BL runs standard **LoRaWAN 1.0.3 in Class A**. It can reach long transfer range and easy to integrate with LoRaWAN compatible gateway and IoT server.
38 -)))
39 +(% 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.
39 39  
40 -(((
41 -For data uplink, RS485-BL sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-BL will process these returns data according to user-define rules to get the final payload and upload to LoRaWAN server.
41 +(% 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]]
42 42  )))
43 -
44 -(((
45 -For data downlink, RS485-BL runs in LoRaWAN Class A. When there is downlink commands from LoRaWAN server, RS485-BL will forward the commands from LoRaWAN server to RS485 devices.
46 46  )))
47 47  
48 -(((
49 -Each RS485-BL pre-load with a set of unique keys for LoRaWAN registration, register these keys to LoRaWAN server and it will auto connect after power on.
50 -)))
45 +[[image:1653267211009-519.png||height="419" width="724"]]
51 51  
52 -[[image:1652953304999-717.png||height="424" width="733"]]
53 53  
54 54  == 1.2 Specifications ==
55 55  
50 +
56 56  **Hardware System:**
57 57  
58 58  * STM32L072CZT6 MCU
59 59  * SX1276/78 Wireless Chip 
60 60  * Power Consumption (exclude RS485 device):
61 -** Idle: 6uA@3.3v
56 +** Idle: 32mA@12v
57 +** 20dB Transmit: 65mA@12v
62 62  
63 -*
64 -** 20dB Transmit: 130mA@3.3v
65 -
66 66  **Interface for Model:**
67 67  
68 -* 1 x RS485 Interface
69 -* 1 x TTL Serial , 3.3v or 5v.
70 -* 1 x I2C Interface, 3.3v or 5v.
71 -* 1 x one wire interface
72 -* 1 x Interrupt Interface
73 -* 1 x Controllable 5V output, max
61 +* RS485
62 +* Power Input 7~~ 24V DC. 
74 74  
75 75  **LoRa Spec:**
76 76  
... ... @@ -79,27 +79,30 @@
79 79  ** Band 2 (LF): 410 ~~ 528 Mhz
80 80  * 168 dB maximum link budget.
81 81  * +20 dBm - 100 mW constant RF output vs.
71 +* +14 dBm high efficiency PA.
82 82  * Programmable bit rate up to 300 kbps.
83 83  * High sensitivity: down to -148 dBm.
84 84  * Bullet-proof front end: IIP3 = -12.5 dBm.
85 85  * Excellent blocking immunity.
76 +* Low RX current of 10.3 mA, 200 nA register retention.
86 86  * Fully integrated synthesizer with a resolution of 61 Hz.
87 -* LoRa modulation.
78 +* FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
88 88  * Built-in bit synchronizer for clock recovery.
89 89  * Preamble detection.
90 90  * 127 dB Dynamic Range RSSI.
91 -* Automatic RF Sense and CAD with ultra-fast AFC. ​​​
82 +* Automatic RF Sense and CAD with ultra-fast AFC.
83 +* Packet engine up to 256 bytes with CRC
92 92  
93 93  == 1.3 Features ==
94 94  
95 -* LoRaWAN Class A & Class C protocol (default Class A)
87 +* LoRaWAN Class A & Class C protocol (default Class C)
96 96  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864
97 97  * AT Commands to change parameters
98 -* Remote configure parameters via LoRaWAN Downlink
90 +* Remote configure parameters via LoRa Downlink
99 99  * Firmware upgradable via program port
100 100  * Support multiply RS485 devices by flexible rules
101 101  * Support Modbus protocol
102 -* Support Interrupt uplink
94 +* Support Interrupt uplink (Since hardware version v1.2)
103 103  
104 104  == 1.4 Applications ==
105 105  
... ... @@ -112,53 +112,46 @@
112 112  
113 113  == 1.5 Firmware Change log ==
114 114  
115 -[[RS485-BL Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Firmware/||style="background-color: rgb(255, 255, 255);"]]
107 +[[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
116 116  
109 +
117 117  == 1.6 Hardware Change log ==
118 118  
119 119  (((
120 -v1.4
121 -)))
122 -
123 123  (((
124 -~1. Change Power IC to TPS22916
125 -)))
114 +v1.2: Add External Interrupt Pin.
126 126  
116 +v1.0: Release
127 127  
128 -(((
129 -v1.3
118 +
130 130  )))
131 -
132 -(((
133 -~1. Change JP3 from KF350-8P to KF350-11P, Add one extra interface for I2C and one extra interface for one-wire
134 134  )))
135 135  
122 += 2. Power ON Device =
136 136  
137 137  (((
138 -v1.2
139 -)))
125 +The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
140 140  
127 +* Power Source VIN to RS485-LN VIN+
128 +* Power Source GND to RS485-LN VIN-
129 +
141 141  (((
142 -Release version ​​​​​
131 +Once there is power, the RS485-LN will be on.
143 143  )))
144 144  
145 -= 2. Pin mapping and Power ON Device =
134 +[[image:1653268091319-405.png]]
146 146  
147 -(((
148 -The RS485-BL is powered on by 8500mAh battery. To save battery life, RS485-BL is shipped with power off. User can put the jumper to power on RS485-BL.
136 +
149 149  )))
150 150  
151 -[[image:1652953055962-143.png||height="387" width="728"]]
152 -
153 -
154 -The Left TXD and RXD are TTL interface for external sensor. TTL level is controlled by 3.3/5v Jumper.
155 -
156 156  = 3. Operation Mode =
157 157  
158 158  == 3.1 How it works? ==
159 159  
160 160  (((
161 -The RS485-BL is configured as LoRaWAN OTAA Class A 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-BL. It will auto join the network via OTAA.
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.
145 +
146 +
162 162  )))
163 163  
164 164  == 3.2 Example to join LoRaWAN network ==
... ... @@ -165,27 +165,37 @@
165 165  
166 166  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. 
167 167  
168 -[[image:1652953414711-647.png||height="337" width="723"]]
153 +[[image:1653268155545-638.png||height="334" width="724"]]
169 169  
155 +
170 170  (((
171 -The RS485-BL in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method.
157 +(((
158 +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:
172 172  )))
173 173  
174 174  (((
175 -The LG308 is already set to connect to [[TTN V3 network >>url:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
162 +485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
176 176  )))
177 177  
165 +[[image:1653268227651-549.png||height="592" width="720"]]
166 +
178 178  (((
179 -**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-BL.
168 +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:
180 180  )))
181 181  
182 182  (((
183 -Each RS485-BL is shipped with a sticker with unique device EUI:
172 +**Step 1**: Create a device in TTN V3 with the OTAA keys from RS485-LN.
184 184  )))
185 185  
175 +(((
176 +Each RS485-LN is shipped with a sticker with unique device EUI:
177 +)))
178 +)))
179 +
186 186  [[image:1652953462722-299.png]]
187 187  
188 188  (((
183 +(((
189 189  User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
190 190  )))
191 191  
... ... @@ -192,13 +192,11 @@
192 192  (((
193 193  Add APP EUI in the application.
194 194  )))
190 +)))
195 195  
196 -
197 -
198 -
199 199  [[image:image-20220519174512-1.png]]
200 200  
201 -[[image:image-20220519174512-2.png||height="328" width="731"]]
194 +[[image:image-20220519174512-2.png||height="323" width="720"]]
202 202  
203 203  [[image:image-20220519174512-3.png||height="556" width="724"]]
204 204  
... ... @@ -214,44 +214,43 @@
214 214  
215 215  
216 216  (((
217 -**Step 2**: Power on RS485-BL 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.
210 +**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.
218 218  )))
219 219  
220 220  [[image:1652953568895-172.png||height="232" width="724"]]
221 221  
215 +
222 222  == 3.3 Configure Commands to read data ==
223 223  
224 224  (((
225 -There are plenty of RS485 and TTL level devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-BL supports flexible command set. User can use [[AT Commands or LoRaWAN Downlink>>path:#AT_COMMAND]] Command to configure how RS485-BL should read the sensor and how to handle the return from RS485 or TTL sensors.
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>>||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.
226 226  )))
227 227  
228 -=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
223 +(((
224 +(% 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
229 229  
230 -RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
226 +
227 +)))
228 +)))
231 231  
232 -**~1. RS485-MODBUS mode:**
230 +=== 3.3.1 onfigure UART settings for RS485 or TTL communication ===
233 233  
234 -AT+MOD=1 ~/~/ Support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
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:
235 235  
236 -**2. TTL mode:**
237 -
238 -AT+MOD=2 ~/~/ Support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
239 -
240 -RS485-BL default UART settings is **9600, no parity, stop bit 1**. If the sensor has a different settings, user can change the RS485-BL setting to match.
241 -
242 -(% border="1" style="background-color:#ffffcc; color:green; width:795px" %)
243 -|(((
234 +(% border="1" style="background-color:#ffffcc; color:green; width:782px" %)
235 +|(% style="width:128px" %)(((
244 244  **AT Commands**
245 -)))|(% style="width:285px" %)(((
237 +)))|(% style="width:305px" %)(((
246 246  **Description**
247 -)))|(% style="width:347px" %)(((
239 +)))|(% style="width:346px" %)(((
248 248  **Example**
249 249  )))
250 -|(((
242 +|(% style="width:128px" %)(((
251 251  AT+BAUDR
252 -)))|(% style="width:285px" %)(((
244 +)))|(% style="width:305px" %)(((
253 253  Set the baud rate (for RS485 connection). Default Value is: 9600.
254 -)))|(% style="width:347px" %)(((
246 +)))|(% style="width:346px" %)(((
255 255  (((
256 256  AT+BAUDR=9600
257 257  )))
... ... @@ -260,18 +260,12 @@
260 260  Options: (1200,2400,4800,14400,19200,115200)
261 261  )))
262 262  )))
263 -|(((
255 +|(% style="width:128px" %)(((
264 264  AT+PARITY
265 -)))|(% style="width:285px" %)(((
266 -(((
257 +)))|(% style="width:305px" %)(((
267 267  Set UART parity (for RS485 connection)
268 -)))
269 -
259 +)))|(% style="width:346px" %)(((
270 270  (((
271 -Default Value is: no parity.
272 -)))
273 -)))|(% style="width:347px" %)(((
274 -(((
275 275  AT+PARITY=0
276 276  )))
277 277  
... ... @@ -279,17 +279,17 @@
279 279  Option: 0: no parity, 1: odd parity, 2: even parity
280 280  )))
281 281  )))
282 -|(((
268 +|(% style="width:128px" %)(((
283 283  AT+STOPBIT
284 -)))|(% style="width:285px" %)(((
270 +)))|(% style="width:305px" %)(((
285 285  (((
286 286  Set serial stopbit (for RS485 connection)
287 287  )))
288 288  
289 289  (((
290 -Default Value is: 1bit.
276 +
291 291  )))
292 -)))|(% style="width:347px" %)(((
278 +)))|(% style="width:346px" %)(((
293 293  (((
294 294  AT+STOPBIT=0 for 1bit
295 295  )))
... ... @@ -306,12 +306,10 @@
306 306  === 3.3.2 Configure sensors ===
307 307  
308 308  (((
309 -Some sensors might need to configure before normal operation. User can configure such sensor via PC or through RS485-BL AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**.
310 -)))
311 -
312 312  (((
313 -When user issue an (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) command, Each (% style="color:#4f81bd" %)**AT+CFGDEV**(%%) equals to send a command to the RS485 or TTL sensors. This command will only run when user input it and won’t run during each sampling.
296 +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.
314 314  )))
298 +)))
315 315  
316 316  (% border="1" style="background-color:#ffffcc; color:green; width:806px" %)
317 317  |**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example**
... ... @@ -323,82 +323,37 @@
323 323  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
324 324  )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
325 325  
326 -Detail of AT+CFGDEV command see [[AT+CFGDEV detail>>path:#AT_CFGDEV]].
327 -
328 328  === 3.3.3 Configure read commands for each sampling ===
329 329  
330 330  (((
331 -RS485-BL is a battery powered device; it will sleep most of time. And wake up on each period and read RS485 / TTL sensor data and uplink.
332 -)))
313 +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.
333 333  
334 -(((
335 -During each sampling, we need to confirm what commands we need to send to the sensors to read data. After the RS485/TTL sensors send back the value, it normally includes some bytes and we only need a few from them for a shorten payload.
336 -)))
337 -
338 -(((
339 339  To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
340 -)))
341 341  
342 -(((
343 343  This section describes how to achieve above goals.
344 -)))
345 345  
346 -(((
347 -During each sampling, the RS485-BL can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
348 -)))
319 +During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
349 349  
350 -(((
351 -**Command from RS485-BL to Sensor:**
352 -)))
353 353  
354 -(((
355 -RS485-BL can send out pre-set max 15 strings via **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF** . All commands are of same grammar.
356 -)))
322 +**Each RS485 commands include two parts:**
357 357  
358 -(((
359 -**Handle return from sensors to RS485-BL**:
360 -)))
324 +~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.
361 361  
362 -(((
363 -After RS485-BL send out a string to sensor, RS485-BL will wait for the return from RS485 or TTL sensor. And user can specify how to handle the return, by **AT+DATACUT or AT+SEARCH commands**
364 -)))
326 +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.
365 365  
366 -* (((
367 -**AT+DATACUT**
368 -)))
328 +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
369 369  
370 -(((
371 -When the return value from sensor have fix length and we know which position the valid value we should get, we can use AT+DATACUT command.
372 -)))
373 373  
374 -* (((
375 -**AT+SEARCH**
376 -)))
377 -
378 -(((
379 -When the return value from sensor is dynamic length and we are not sure which bytes the valid data is, instead, we know what value the valid value following. We can use AT+SEARCH to search the valid value in the return string.
380 -)))
381 -
382 -(((
383 -**Define wait timeout:**
384 -)))
385 -
386 -(((
387 -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
388 -)))
389 -
390 -(((
391 391  After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
392 -)))
393 393  
394 -**Examples:**
395 395  
396 396  Below are examples for the how above AT Commands works.
397 397  
398 -**AT+COMMANDx : **This command will be sent to RS485/TTL devices during each sampling, Max command length is 14 bytes. The grammar is:
399 399  
400 -(% border="1" class="table-bordered" %)
401 -|(((
337 +**AT+COMMANDx : **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
338 +
339 +(% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
340 +|(% style="width:496px" %)(((
402 402  **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
403 403  
404 404  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
... ... @@ -408,43 +408,13 @@
408 408  
409 409  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.
410 410  
411 -In the RS485-BL, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
350 +In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
412 412  
413 -**AT+SEARCHx**: This command defines how to handle the return from AT+COMMANDx.
414 414  
415 -(% border="1" class="table-bordered" %)
416 -|(((
417 -**AT+SEARCHx=aa,xx xx xx xx xx**
418 -
419 -* **aa: 1: prefix match mode; 2: prefix and suffix match mode**
420 -* **xx xx xx xx xx: match string. Max 5 bytes for prefix and 5 bytes for suffix**
421 -
422 -
423 -)))
424 -
425 -Examples:
426 -
427 -1. For a return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
428 -
429 -If we set AT+SEARCH1=1,1E 56 34.      (max 5 bytes for prefix)
430 -
431 -The valid data will be all bytes after 1E 56 34 , so it is 2e 30 58 5f 36 41 30 31 00 49
432 -
433 -[[image:1652954654347-831.png]]
434 -
435 -
436 -1. For a return string from AT+COMMAND1:  16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
437 -
438 -If we set AT+SEARCH1=2, 1E 56 34+31 00 49
439 -
440 -Device will search the bytes between 1E 56 34 and 31 00 49. So it is 2e 30 58 5f 36 41 30
441 -
442 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image014.png]]
443 -
444 -
445 445  **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes.
446 446  
447 -|(((
355 +(% border="1" style="background-color:#4bacc6; color:white; width:725px" %)
356 +|(% style="width:722px" %)(((
448 448  **AT+DATACUTx=a,b,c**
449 449  
450 450  * **a: length for the return of AT+COMMAND**
... ... @@ -452,242 +452,184 @@
452 452  * **c: define the position for valid value.  **
453 453  )))
454 454  
455 -Examples:
364 +**Examples:**
456 456  
457 457  * Grab bytes:
458 458  
459 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image015.png]]
368 +[[image:image-20220602153621-1.png]]
460 460  
370 +
461 461  * Grab a section.
462 462  
463 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image016.png]]
373 +[[image:image-20220602153621-2.png]]
464 464  
375 +
465 465  * Grab different sections.
466 466  
467 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image017.png]]
378 +[[image:image-20220602153621-3.png]]
468 468  
380 +
381 +)))
469 469  
470 -Note:
383 +=== 3.3.4 Compose the uplink payload ===
471 471  
472 -AT+SEARCHx and AT+DATACUTx can be used together, if both commands are set, RS485-BL will first process AT+SEARCHx on the return string and get a temporary string, and then process AT+DATACUTx on this temporary string to get the final payload. In this case, AT+DATACUTx need to set to format AT+DATACUTx=0,xx,xx where the return bytes set to 0.
473 -
474 -Example:
475 -
476 -AT+COMMAND1=11 01 1E D0,0
477 -
478 -AT+SEARCH1=1,1E 56 34
479 -
480 -AT+DATACUT1=0,2,1~~5
481 -
482 -Return string from AT+COMMAND1: 16 0c 1e 56 34 2e 30 58 5f 36 41 30 31 00 49
483 -
484 -String after SEARCH command: 2e 30 58 5f 36 41 30 31 00 49
485 -
486 -Valid payload after DataCUT command: 2e 30 58 5f 36
487 -
488 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image018.png]]
489 -
490 -
491 -
492 -
493 -1.
494 -11.
495 -111. Compose the uplink payload
496 -
385 +(((
497 497  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.**
498 498  
388 +
389 +)))
499 499  
500 -**Examples: AT+DATAUP=0**
391 +(((
392 +(% style="color:#037691" %)**Examples: AT+DATAUP=0**
501 501  
502 -Compose the uplink payload with value returns in sequence and send with **A SIGNLE UPLINK**.
394 +
395 +)))
503 503  
397 +(((
398 +Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
399 +)))
400 +
401 +(((
504 504  Final Payload is
403 +)))
505 505  
506 -Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx
405 +(((
406 +(% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
407 +)))
507 507  
409 +(((
508 508  Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
411 +)))
509 509  
510 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image019.png]]
413 +[[image:1653269759169-150.png||height="513" width="716"]]
511 511  
512 512  
416 +(% style="color:#037691" %)**Examples: AT+DATAUP=1**
513 513  
514 -**Examples: AT+DATAUP=1**
515 515  
516 -Compose the uplink payload with value returns in sequence and send with **Multiply UPLINKs**.
419 +Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
517 517  
518 518  Final Payload is
519 519  
520 -Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA
423 +(% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
521 521  
522 -1. Battery Info (2 bytes): Battery voltage
523 -1. PAYVER (1 byte): Defined by AT+PAYVER
524 -1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling.
525 -1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
526 -1. DATA: Valid value: max 6 bytes(US915 version here, [[Notice*!>>path:#max_byte]]) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes
527 527  
528 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image020.png]]
426 +1. PAYVER: Defined by AT+PAYVER
427 +1. PAYLOAD COUNT: Total how many uplinks of this sampling.
428 +1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
429 +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
529 529  
431 +[[image:image-20220602155039-4.png]]
530 530  
531 -So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA
532 532  
533 -DATA1=RETURN1 Valid Value = 20 20 0a 33 90 41
434 +So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
534 534  
535 -DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10= 02 aa 05 81 0a 20
436 +DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
536 536  
537 -DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = 20 20 20 2d 30
438 +DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
538 538  
440 +DATA3=the rest of Valid value of RETURN10= **30**
539 539  
540 540  
541 -Below are the uplink payloads:
443 +(% 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:
542 542  
543 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image021.png]]
445 + ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
544 544  
447 + * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
545 545  
546 -Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:
449 + * For US915 band, max 11 bytes for each uplink.
547 547  
548 - ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date)
451 + ~* For all other bands: max 51 bytes for each uplink.
549 549  
550 - * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
551 551  
552 - * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date).
454 +Below are the uplink payloads:
553 553  
554 - ~* For all other bands: max 51 bytes for each uplink  ( so 51 -5 = 46 max valid date).
456 +[[image:1654157178836-407.png]]
555 555  
556 556  
459 +=== 3.3.5 Uplink on demand ===
557 557  
558 -1.
559 -11.
560 -111. Uplink on demand
461 +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.
561 561  
562 -Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command.
563 -
564 564  Downlink control command:
565 565  
566 -[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL.
465 +**0x08 command**: Poll an uplink with current command set in RS485-LN.
567 567  
568 -[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors.
467 +**0xA8 command**: Send a command to RS485-LN and uplink the output from sensors.
569 569  
570 570  
571 571  
572 -1.
573 -11.
574 -111. Uplink on Interrupt
471 +=== 3.3.6 Uplink on Interrupt ===
575 575  
576 -Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]]
473 +RS485-LN support external Interrupt uplink since hardware v1.2 release.
577 577  
578 -AT+INTMOD=0  Disable Interrupt
475 +[[image:1654157342174-798.png]]
579 579  
580 -AT+INTMOD=1  Interrupt trigger by rising or falling edge.
477 +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.
581 581  
582 -AT+INTMOD=2  Interrupt trigger by falling edge. ( Default Value)
583 583  
584 -AT+INTMOD=3  Interrupt trigger by rising edge.
480 +== 3.4 Uplink Payload ==
585 585  
586 -
587 -1.
588 -11. Uplink Payload
589 -
590 -|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands**
591 -|Value|(((
482 +(% border="1" style="background-color:#4bacc6; color:white; width:734px" %)
483 +|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands**
484 +|Value|(% style="width:120px" %)(((
592 592  Battery(mV)
593 593  
594 594  &
595 595  
596 596  Interrupt _Flag
597 -)))|(((
490 +)))|(% style="width:116px" %)(((
598 598  PAYLOAD_VER
599 599  
600 600  
601 -)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
494 +)))|(% style="width:386px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.
602 602  
603 603  Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
604 604  
605 605  
606 -function Decoder(bytes, port) {
499 +== 3.5 Configure RS485-BL via AT or Downlink ==
607 607  
608 -~/~/Payload Formats of RS485-BL Deceive
501 +User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
609 609  
610 -return {
611 -
612 - ~/~/Battery,units:V
613 -
614 - BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000,
615 -
616 - ~/~/GPIO_EXTI 
617 -
618 - EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE",
619 -
620 - ~/~/payload of version
621 -
622 - Pay_ver:bytes[2],
623 -
624 - };
625 -
626 - }
627 -
628 -
629 -
630 -
631 -
632 -
633 -
634 -TTN V3 uplink screen shot.
635 -
636 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
637 -
638 -1.
639 -11. Configure RS485-BL via AT or Downlink
640 -
641 -User can configure RS485-BL via [[AT Commands >>path:#_​Using_the_AT]]or LoRaWAN Downlink Commands
642 -
643 643  There are two kinds of Commands:
644 644  
645 -* **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: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands
505 +* (% 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]]
646 646  
647 -* **Sensor Related Commands**: These commands are special designed for RS485-BL.  User can see these commands below:
507 +* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
648 648  
649 -1.
650 -11.
651 -111. Common Commands:
509 +=== 3.5.1 Common Commands ===
652 652  
653 -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: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]]
511 +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]]
654 654  
655 655  
656 -1.
657 -11.
658 -111. Sensor related commands:
514 +=== 3.5.2 Sensor related commands ===
659 659  
660 -==== Choose Device Type (RS485 or TTL) ====
516 +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.
661 661  
662 -RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
518 +[[image:image-20220602163333-5.png||height="263" width="1160"]]
663 663  
664 -* AT Command
520 +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)
665 665  
666 -**AT+MOD=1** ~/~/ Set to support RS485-MODBUS type sensors. User can connect multiply RS485 , Modbus sensors to the A / B pins.
667 667  
668 -**AT+MOD=2** ~/~/ Set to support TTL Level sensors, User can connect one TTL Sensor to the TXD/RXD/GND pins.
523 +=== 3.5.3 Sensor related commands ===
669 669  
670 670  
671 -* Downlink Payload
672 672  
673 -**0A aa**     à same as AT+MOD=aa
527 +==== **RS485 Debug Command** ====
674 674  
529 +This command is used to configure the RS485 devices; they won’t be used during sampling.
675 675  
531 +* **AT Command**
676 676  
677 -==== [[RS485 Debug Command>>path:#downlink_A8]] (AT+CFGDEV) ====
533 +(% class="box infomessage" %)
534 +(((
535 +**AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
536 +)))
678 678  
679 -This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
538 +m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
680 680  
681 -* AT Command
540 +* **Downlink Payload**
682 682  
683 -AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
684 -
685 -m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
686 -
687 -
688 -
689 -* Downlink Payload
690 -
691 691  Format: A8 MM NN XX XX XX XX YY
692 692  
693 693  Where:
... ... @@ -695,9 +695,12 @@
695 695  * MM: 1: add CRC-16/MODBUS ; 0: no CRC
696 696  * NN: The length of RS485 command
697 697  * XX XX XX XX: RS485 command total NN bytes
698 -* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
549 +* YY: How many bytes will be uplink from the return of this RS485 command,
550 +** if YY=0, RS485-LN will execute the downlink command without uplink;
551 +** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
552 +** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
699 699  
700 -**Example 1:**
554 +**Example 1** ~-~-> Configure without ask for uplink (YY=0)
701 701  
702 702  To connect a Modbus Alarm with below commands.
703 703  
... ... @@ -707,184 +707,190 @@
707 707  
708 708  So if user want to use downlink command to control to RS485 Alarm, he can use:
709 709  
710 -**A8 01 06 0A 05 00 04 00 01 00**: to activate the RS485 Alarm
564 +(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
711 711  
712 -**A8 01 06 0A 05 00 04 00 00 00**: to deactivate the RS485 Alarm
566 +(% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
713 713  
714 714  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.
715 715  
716 716  
717 -**Example 2:**
571 +**Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
718 718  
719 -Check TTL Sensor return:
573 +User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
720 720  
721 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image024.png]]
722 722  
576 +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:
723 723  
578 + **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
724 724  
580 + [[image:1654159460680-153.png]]
725 725  
726 -==== Set Payload version ====
727 727  
728 -This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
729 729  
730 -* AT Command:
584 +==== **Set Payload version** ====
731 731  
732 -AT+PAYVER: Set PAYVER field = 1
586 +This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
733 733  
588 +* **AT Command:**
734 734  
735 -* Downlink Payload:
590 +(% class="box infomessage" %)
591 +(((
592 +**AT+PAYVER: Set PAYVER field = 1**
593 +)))
736 736  
737 -0xAE 01   à Set PAYVER field =  0x01
595 +* **Downlink Payload:**
738 738  
739 -0xAE 0F   à Set PAYVER field =  0x0F
597 +**0xAE 01**  ~-~-> Set PAYVER field =  0x01
740 740  
599 +**0xAE 0F**   ~-~-> Set PAYVER field =  0x0F
741 741  
742 -==== Set RS485 Sampling Commands ====
743 743  
744 -AT+COMMANDx, AT+DATACUTx and AT+SEARCHx
745 745  
746 -These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>path:#polling_485]].
603 +==== **Set RS485 Sampling Commands** ====
747 747  
605 +AT+COMMANDx or AT+DATACUTx
748 748  
749 -* AT Command:
607 +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"]].
750 750  
751 -AT+COMMANDx: Configure RS485 read command to sensor.
752 752  
753 -AT+DATACUTx: Configure how to handle return from RS485 devices.
610 +* **AT Command:**
754 754  
755 -AT+SEARCHx: Configure search command
612 +(% class="box infomessage" %)
613 +(((
614 +**AT+COMMANDx: Configure RS485 read command to sensor.**
615 +)))
756 756  
617 +(% class="box infomessage" %)
618 +(((
619 +**AT+DATACUTx: Configure how to handle return from RS485 devices.**
620 +)))
757 757  
758 -* Downlink Payload:
759 759  
760 -0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
623 +* **Downlink Payload:**
761 761  
762 -Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
625 +**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
763 763  
627 +(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.
628 +
764 764  Format: AF MM NN LL XX XX XX XX YY
765 765  
766 766  Where:
767 767  
768 768  * MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
769 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
770 -* LL: The length of AT+COMMAND or AT+DATACUT command
634 +* NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
635 +* LL:  The length of AT+COMMAND or AT+DATACUT command
771 771  * XX XX XX XX: AT+COMMAND or AT+DATACUT command
772 -* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command.
637 +* YY:  If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
773 773  
774 -Example:
639 +**Example:**
775 775  
776 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1
641 +(% 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
777 777  
778 -**AF 03 02 06 10 01 05 06 09 0A 00**: Same as AT+DATACUT3=**16**,**1**,**5+6+9+10**
643 +(% 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**
779 779  
780 -**AF 03 02 06 0B 02 05 07 08 0A 00**: Same as AT+DATACUT3=**11**,**2**,**5~~7+8~~10**
645 +(% 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**
781 781  
782 782  
783 -0xAB downlink command can be used for set AT+SEARCHx
784 784  
785 -Example: **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So
649 +==== **Fast command to handle MODBUS device** ====
786 786  
787 -* AB aa 01 03 xx xx xx  same as AT+SEARCHaa=1,xx xx xx
788 -* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands
789 -
790 -**AB aa 02 03 xx xx xx 02 yy yy**  same as **AT+SEARCHaa=2,xx xx xx+yy yy**
791 -
792 -
793 -==== Fast command to handle MODBUS device ====
794 -
795 795  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]].
796 796  
797 797  This command is valid since v1.3 firmware version
798 798  
655 +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.
799 799  
800 -AT+MBFUN has only two value:
801 801  
802 -* AT+MBFUN=1: Enable Modbus reading. And get response base on the MODBUS return
658 +**Example:**
803 803  
804 -AT+MBFUN=1, device 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.
805 -
806 -* AT+MBFUN=0: Disable Modbus fast reading.
807 -
808 -Example:
809 -
810 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0).
660 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
811 811  * 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.
812 812  * 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.
813 813  
814 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image025.png]]
664 +[[image:image-20220602165351-6.png]]
815 815  
666 +[[image:image-20220602165351-7.png]]
816 816  
817 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image026.png]]
818 818  
819 819  
820 -* Downlink Commands:
670 +==== **RS485 command timeout** ====
821 821  
822 -A9 aa Same as AT+MBFUN=aa
672 +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.
823 823  
674 +Default value: 0, range:  0 ~~ 65 seconds
824 824  
825 -==== RS485 command timeout ====
676 +* **AT Command:**
826 826  
827 -Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action.
678 +(% class="box infomessage" %)
679 +(((
680 +**AT+CMDDLaa=hex(bb cc)*1000**
681 +)))
828 828  
829 -Default value: 0, range:  0 ~~ 5 seconds
683 +**Example:**
830 830  
685 +**AT+CMDDL1=1000** to send the open time to 1000ms
831 831  
832 -* AT Command:
833 833  
834 -AT+CMDDLaa=hex(bb cc)
688 +* **Downlink Payload:**
835 835  
836 -Example:
690 +**0x AA aa bb cc**
837 837  
838 -**AT+CMDDL1=1000** to send the open time to 1000ms
692 +Same as: AT+CMDDLaa=hex(bb cc)*1000
839 839  
694 + **Example:**
840 840  
841 -* Downlink Payload:
696 + 0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
842 842  
843 -0x AA aa bb cc
844 844  
845 -Same as: AT+CMDDLaa=hex(bb cc)
846 846  
847 - Example:
700 +==== **Uplink payload mode** ====
848 848  
849 - 0xAA 01 03 E8  à Same as **AT+CMDDL1=1000 ms**
702 +Define to use one uplink or multiple uplinks for the sampling.
850 850  
704 +The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
851 851  
852 -==== [[Uplink>>path:#downlink_A8]] payload mode ====
706 +* **AT Command:**
853 853  
854 -Define to use one uplink or multiple uplinks for the sampling.
708 +(% class="box infomessage" %)
709 +(((
710 +**AT+DATAUP=0**
711 +)))
855 855  
856 -The use of this command please see: [[Compose Uplink payload>>path:#DataUP]]
713 +(% class="box infomessage" %)
714 +(((
715 +**AT+DATAUP=1**
716 +)))
857 857  
858 -* AT Command:
859 859  
860 -AT+DATAUP=0
719 +* **Downlink Payload:**
861 861  
862 -AT+DATAUP=1
721 +**0xAD 00**  **~-~->** Same as AT+DATAUP=0
863 863  
723 +**0xAD 01**  **~-~->** Same as AT+DATAUP=1
864 864  
865 -* Downlink Payload:
866 866  
867 -0xAD 00   à Same as AT+DATAUP=0
868 868  
869 -0xAD 01   à Same as AT+DATAUP=1
727 +==== **Manually trigger an Uplink** ====
870 870  
729 +Ask device to send an uplink immediately.
871 871  
872 -==== Manually trigger an Uplink ====
731 +* **AT Command:**
873 873  
874 -Ask device to send an uplink immediately.
733 +No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
875 875  
876 -* Downlink Payload:
877 877  
878 -0x08 FF, RS485-BL will immediately send an uplink.
736 +* **Downlink Payload:**
879 879  
738 +**0x08 FF**, RS485-LN will immediately send an uplink.
880 880  
881 -==== Clear RS485 Command ====
882 882  
883 -The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
884 884  
742 +==== **Clear RS485 Command** ====
885 885  
886 -* AT Command:
744 +The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
887 887  
746 +* **AT Command:**
747 +
888 888  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
889 889  
890 890  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
... ... @@ -892,43 +892,50 @@
892 892  Example screen shot after clear all RS485 commands. 
893 893  
894 894  
895 -
896 896  The uplink screen shot is:
897 897  
898 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]]
757 +[[image:1654160691922-496.png]]
899 899  
900 900  
901 -* Downlink Payload:
760 +* **Downlink Payload:**
902 902  
903 -0x09 aa bb same as AT+CMDEAR=aa,bb
762 +**0x09 aa bb** same as AT+CMDEAR=aa,bb
904 904  
905 905  
906 -==== Set Serial Communication Parameters ====
907 907  
766 +==== **Set Serial Communication Parameters** ====
767 +
908 908  Set the Rs485 serial communication parameters:
909 909  
910 -* AT Command:
770 +* **AT Command:**
911 911  
912 912  Set Baud Rate:
913 913  
914 -AT+BAUDR=9600    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
774 +(% class="box infomessage" %)
775 +(((
776 +**AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
777 +)))
915 915  
779 +Set UART Parity
916 916  
917 -Set UART parity
781 +(% class="box infomessage" %)
782 +(((
783 +**AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
784 +)))
918 918  
919 -AT+PARITY=0    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
920 -
921 -
922 922  Set STOPBIT
923 923  
924 -AT+STOPBIT=0    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
788 +(% class="box infomessage" %)
789 +(((
790 +**AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
791 +)))
925 925  
926 926  
927 -* Downlink Payload:
794 +* **Downlink Payload:**
928 928  
929 -A7 01 aa bb: Same  AT+BAUDR=hex(aa bb)*100
796 +**A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
930 930  
931 -Example:
798 +**Example:**
932 932  
933 933  * A7 01 00 60   same as AT+BAUDR=9600
934 934  * A7 01 04 80  same as AT+BAUDR=115200
... ... @@ -938,287 +938,287 @@
938 938  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
939 939  
940 940  
941 -==== Control output power duration ====
808 +== 3.6 Listening mode for RS485 network ==
942 942  
943 -User can set the output power duration before each sampling.
810 +This feature support since firmware v1.4
944 944  
945 -* AT Command:
812 +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.
946 946  
947 -Example:
814 +[[image:image-20220602171200-8.png||height="567" width="1007"]]
948 948  
949 -AT+3V3T=1000 ~/~/ 3V3 output power will open 1s before each sampling.
816 +To enable the listening mode, use can run the command AT+RXMODE.
950 950  
951 -AT+5VT=1000 ~/~/ +5V output power will open 1s before each sampling.
952 952  
819 +(% border="1" style="background-color:#ffffcc; width:500px" %)
820 +|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
821 +|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)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.
822 +|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)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
823 +|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
824 +|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
953 953  
954 -* LoRaWAN Downlink Command:
826 +**Downlink Command:**
955 955  
956 -07 01 aa bb  Same as AT+5VT=(aa bb)
828 +**0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
957 957  
958 -07 02 aa bb  Same as AT+3V3T=(aa bb)
959 959  
831 +**Example**:
960 960  
833 +The RS485-LN is set to AT+RXMODE=2,1000
961 961  
835 +There is a two Modbus commands in the RS485 network as below:
962 962  
963 -1.
964 -11. Buttons
837 +The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
965 965  
966 -|**Button**|**Feature**
967 -|**RST**|Reboot RS485-BL
839 +And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
968 968  
969 -1.
970 -11. +3V3 Output
841 +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
971 971  
972 -RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
843 +[[image:image-20220602171200-9.png]]
973 973  
974 -The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
975 975  
846 +(% 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.
976 976  
977 -The +3V3 output time can be controlled by AT Command.
978 978  
979 -**AT+3V3T=1000**
849 +== 3.7 Buttons ==
980 980  
981 -Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
982 982  
852 +(% border="1" style="background-color:#f7faff; width:500px" %)
853 +|=**Button**|=(% style="width: 1420px;" %)**Feature**
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 +|**RST**|(% style="width:1420px" %)Reboot RS485
856 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
983 983  
984 -By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
985 985  
859 +== 3.8 LEDs ==
986 986  
987 -1.
988 -11. +5V Output
861 +(% border="1" style="background-color:#f7faff; width:500px" %)
862 +|=**LEDs**|=**Feature**
863 +|**PWR**|Always on if there is power
864 +|**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.
989 989  
990 -RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
991 991  
992 -The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
867 += 4. Case Study =
993 993  
869 +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]]
994 994  
995 -The 5V output time can be controlled by AT Command.
996 996  
997 -**AT+5VT=1000**
872 += 5. Use AT Command =
998 998  
999 -Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
874 +== 5.1 Access AT Command ==
1000 1000  
876 +RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1001 1001  
1002 -By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
878 +[[image:1654162355560-817.png]]
1003 1003  
1004 1004  
881 +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-BL. The default password is 123456. Below is the output for reference:
1005 1005  
883 +[[image:1654162368066-342.png]]
1006 1006  
1007 -1.
1008 -11. LEDs
1009 1009  
1010 -|**LEDs**|**Feature**
1011 -|**LED1**|Blink when device transmit a packet.
886 +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/]]
1012 1012  
1013 -1.
1014 -11. Switch Jumper
1015 1015  
1016 -|**Switch Jumper**|**Feature**
1017 -|**SW1**|(((
1018 -ISP position: Upgrade firmware via UART
889 +== 5.2 Common AT Command Sequence ==
1019 1019  
1020 -Flash position: Configure device, check running status.
891 +=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
892 +
893 +If device has not joined network yet:
894 +
895 +(% class="box infomessage" %)
896 +(((
897 +**AT+FDR**
1021 1021  )))
1022 -|**SW2**|(((
1023 -5V position: set to compatible with 5v I/O.
1024 1024  
1025 -3.3v position: set to compatible with 3.3v I/O.,
900 +(% class="box infomessage" %)
901 +(((
902 +**AT+NJM=0**
1026 1026  )))
1027 1027  
1028 -+3.3V: is always ON
905 +(% class="box infomessage" %)
906 +(((
907 +**ATZ**
908 +)))
1029 1029  
1030 -+5V: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1031 1031  
1032 -1. Case Study
911 +If device already joined network:
1033 1033  
1034 -User can check this URL for some case studies.
913 +(% class="box infomessage" %)
914 +(((
915 +**AT+NJM=0**
916 +)))
1035 1035  
1036 -[[http:~~/~~/wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS>>url:http://wiki.dragino.com/index.php?title=APP_RS485_COMMUNICATE_WITH_SENSORS]]
918 +(% class="box infomessage" %)
919 +(((
920 +**ATZ**
921 +)))
1037 1037  
1038 1038  
924 +=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1039 1039  
1040 1040  
1041 -1. Use AT Command
1042 -11. Access AT Command
927 +(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1043 1043  
1044 -RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
929 +(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode
1045 1045  
1046 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image027.png]]
931 +(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off
1047 1047  
933 +(% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%)Set Data Rate
1048 1048  
1049 -In PC, User needs to set **serial tool**(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to **9600** to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
935 +(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1050 1050  
1051 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image028.png]]
937 +(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz
1052 1052  
939 +(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1053 1053  
941 +(% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1054 1054  
1055 -More detail AT Command manual can be found at [[AT Command Manual>>path:#AT_COMMAND]]
943 +(% 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.
1056 1056  
945 +(% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1057 1057  
1058 1058  
1059 -1.
1060 -11. Common AT Command Sequence
1061 -111. Multi-channel ABP mode (Use with SX1301/LG308)
948 +(% style="color:red" %)**Note:**
1062 1062  
1063 -If device has not joined network yet:
950 +(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
951 +2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
952 +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.
953 +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
1064 1064  
1065 -AT+FDR
955 +[[image:1654162478620-421.png]]
1066 1066  
1067 -AT+NJM=0
1068 1068  
1069 -ATZ
958 += 6. FAQ =
1070 1070  
960 +== 6.1 How to upgrade the image? ==
1071 1071  
1072 -If device already joined network:
962 +The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1073 1073  
1074 -AT+NJM=0
964 +* Support new features
965 +* For bug fix
966 +* Change LoRaWAN bands.
1075 1075  
1076 -ATZ
968 +Below shows the hardware connection for how to upload an image to RS485-LN:
1077 1077  
1078 -1.
1079 -11.
1080 -111. Single-channel ABP mode (Use with LG01/LG02)
970 +[[image:1654162535040-878.png]]
1081 1081  
1082 -AT+FDR   Reset Parameters to Factory Default, Keys Reserve
972 +**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]].
1083 1083  
1084 -AT+NJM=0 Set to ABP mode
974 +**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1085 1085  
1086 -AT+ADR=0 Set the Adaptive Data Rate Off
976 +**Step3: **Open flashloader; choose the correct COM port to update.
1087 1087  
1088 -AT+DR=5  Set Data Rate
978 +(((
979 +(% 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.
980 +)))
1089 1089  
1090 -AT+TDC=60000  Set transmit interval to 60 seconds
1091 1091  
1092 -AT+CHS=868400000 Set transmit frequency to 868.4Mhz
983 +[[image:image-20220602175818-12.png]]
1093 1093  
1094 -AT+RX2FQ=868400000 Set RX2Frequency to 868.4Mhz (according to the result from server)
1095 1095  
1096 -AT+RX2DR=5  Set RX2DR to match the downlink DR from server. see below
986 +[[image:image-20220602175848-13.png]]
1097 1097  
1098 -AT+DADDR=26 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal.
1099 1099  
1100 -ATZ          Reset MCU
989 +[[image:image-20220602175912-14.png]]
1101 1101  
1102 -**Note:**
1103 1103  
1104 -1. Make sure the device is set to ABP mode in the IoT Server.
1105 -1. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1106 -1. 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.
1107 -1. 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
992 +**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:
1108 1108  
1109 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image029.png]]
994 +[[image:image-20220602175638-10.png]]
1110 1110  
1111 1111  
1112 -1. FAQ
1113 -11. How to upgrade the image?
997 +== 6.2 How to change the LoRa Frequency Bands/Region? ==
1114 1114  
1115 -The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
999 +User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1116 1116  
1117 -* Support new features
1118 -* For bug fix
1119 -* Change LoRaWAN bands.
1120 1120  
1121 -Below shows the hardware connection for how to upload an image to RS485-BL:
1002 +== 6.3 How many RS485-Slave can RS485-BL connects? ==
1122 1122  
1123 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image030.png]]
1004 +The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL 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"]].
1124 1124  
1125 -**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]].
1126 1126  
1127 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1007 +== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1128 1128  
1129 -**Step3: **Open flashloader; choose the correct COM port to update.
1009 +When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1130 1130  
1011 +Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1131 1131  
1132 -|(((
1133 -HOLD PRO then press the RST button, SYS will be ON, then click next
1134 -)))
1135 1135  
1136 -|(((
1137 -Board detected
1138 -)))
1014 += 7. Trouble Shooting =
1139 1139  
1140 -|(((
1141 -
1142 -)))
1016 +== 7.1 Downlink doesn’t work, how to solve it? ==
1143 1143  
1144 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image031.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image032.png]]
1018 +Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1145 1145  
1146 1146  
1021 +== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? ==
1147 1147  
1148 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image033.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image034.png]]
1023 +It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1149 1149  
1150 1150  
1151 -[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image035.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image036.png]]
1026 += 8. Order Info =
1152 1152  
1028 +(% style="color:blue" %)**Part Number: RS485-LN-XXX**
1153 1153  
1154 -1.
1155 -11. How to change the LoRa Frequency Bands/Region?
1030 +(% style="color:blue" %)**XXX:**
1156 1156  
1157 -User can follow the introduction for [[how to upgrade image>>path:#upgrade_image]]. When download the images, choose the required image file for download.
1032 +* (% style="color:blue" %)**EU433**(%%): frequency bands EU433
1033 +* (% style="color:blue" %)**EU868**(%%): frequency bands EU868
1034 +* (% style="color:blue" %)**KR920**(%%): frequency bands KR920
1035 +* (% style="color:blue" %)**CN470**(%%): frequency bands CN470
1036 +* (% style="color:blue" %)**AS923**(%%): frequency bands AS923
1037 +* (% style="color:blue" %)**AU915**(%%): frequency bands AU915
1038 +* (% style="color:blue" %)**US915**(%%): frequency bands US915
1039 +* (% style="color:blue" %)**IN865**(%%): frequency bands IN865
1040 +* (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1041 +* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1158 1158  
1159 1159  
1160 1160  
1161 -1.
1162 -11. How many RS485-Slave can RS485-BL connects?
1045 += 9.Packing Info =
1163 1163  
1164 -The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL 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>>path:#downlink_A8]].
1165 1165  
1048 +**Package Includes**:
1166 1166  
1050 +* RS485-LN x 1
1051 +* Stick Antenna for LoRa RF part x 1
1052 +* Program cable x 1
1167 1167  
1054 +**Dimension and weight**:
1168 1168  
1169 -1. Trouble Shooting     
1170 -11. Downlink doesn’t work, how to solve it?
1056 +* Device Size: 13.5 x 7 x 3 cm
1057 +* Device Weight: 105g
1058 +* Package Size / pcs : 14.5 x 8 x 5 cm
1059 +* Weight / pcs : 170g
1171 1171  
1172 -Please see this link for debug:
1173 1173  
1174 -[[http:~~/~~/wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug>>url:http://wiki.dragino.com/index.php?title=Main_Page#LoRaWAN_Communication_Debug]] 
1175 1175  
1063 += 10. FCC Caution for RS485LN-US915 =
1176 1176  
1065 +Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1177 1177  
1178 -1.
1179 -11. Why I can’t join TTN V3 in US915 /AU915 bands?
1067 +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.
1180 1180  
1181 -It might about the channels mapping. Please see for detail.
1182 1182  
1183 -[[http:~~/~~/wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band>>url:http://wiki.dragino.com/index.php?title=LoRaWAN_Communication_Debug#Notice_of_US915.2FCN470.2FAU915_Frequency_band]]
1070 +**IMPORTANT NOTE:**
1184 1184  
1072 +**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:
1185 1185  
1074 +—Reorient or relocate the receiving antenna.
1186 1186  
1187 -1. Order Info
1076 +—Increase the separation between the equipment and receiver.
1188 1188  
1189 -**Part Number: RS485-BL-XXX**
1078 +—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1190 1190  
1191 -**XXX:**
1080 +—Consult the dealer or an experienced radio/TV technician for help.
1192 1192  
1193 -* **EU433**: frequency bands EU433
1194 -* **EU868**: frequency bands EU868
1195 -* **KR920**: frequency bands KR920
1196 -* **CN470**: frequency bands CN470
1197 -* **AS923**: frequency bands AS923
1198 -* **AU915**: frequency bands AU915
1199 -* **US915**: frequency bands US915
1200 -* **IN865**: frequency bands IN865
1201 -* **RU864**: frequency bands RU864
1202 -* **KZ865: **frequency bands KZ865
1203 1203  
1204 -1. Packing Info
1083 +**FCC Radiation Exposure Statement:**
1205 1205  
1206 -**Package Includes**:
1085 +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.
1207 1207  
1208 -* RS485-BL x 1
1209 -* Stick Antenna for LoRa RF part x 1
1210 -* Program cable x 1
1211 1211  
1212 -**Dimension and weight**:
1088 += 11. Support =
1213 1213  
1214 -* Device Size: 13.5 x 7 x 3 cm
1215 -* Device Weight: 105g
1216 -* Package Size / pcs : 14.5 x 8 x 5 cm
1217 -* Weight / pcs : 170g
1218 -
1219 -1. Support
1220 -
1221 1221  * 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.
1222 -* 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
1223 -
1224 -[[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]
1091 +* 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]].
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