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Version 79.7 by Xiaoling on 2022/10/27 11:03
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6 (% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
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15 **Table of Contents:**
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17 {{toc/}}
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22 (% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||height="15" role="presentation" title="Click and drag to move" width="15"]]
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30
31 = 1.Introduction =
32
33
34 == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
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37 (((
38 The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost.
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41 (((
42 RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on.
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46 (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server.
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49 (((
50 (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices.
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54 (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]]
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58 (% aria-label="1653267211009-519.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653267211009-519.png||data-widget="image" height="419" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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60
61
62 == 1.2 Specifications ==
63
64
65 (% style="color:#037691" %)**Hardware System:**
66
67 * STM32L072CZT6 MCU
68 * SX1276/78 Wireless Chip 
69 * Power Consumption (exclude RS485 device):
70 ** Idle: 32mA@12v
71 ** 20dB Transmit: 65mA@12v
72
73 (% style="color:#037691" %)**Interface for Model:**
74
75 * RS485
76 * Power Input 7~~ 24V DC. 
77
78 (% style="color:#037691" %)**LoRa Spec:**
79
80 * Frequency Range:
81 ** Band 1 (HF): 862 ~~ 1020 Mhz
82 ** Band 2 (LF): 410 ~~ 528 Mhz
83 * 168 dB maximum link budget.
84 * +20 dBm - 100 mW constant RF output vs.
85 * +14 dBm high efficiency PA.
86 * Programmable bit rate up to 300 kbps.
87 * High sensitivity: down to -148 dBm.
88 * Bullet-proof front end: IIP3 = -12.5 dBm.
89 * Excellent blocking immunity.
90 * Low RX current of 10.3 mA, 200 nA register retention.
91 * Fully integrated synthesizer with a resolution of 61 Hz.
92 * FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
93 * Built-in bit synchronizer for clock recovery.
94 * Preamble detection.
95 * 127 dB Dynamic Range RSSI.
96 * Automatic RF Sense and CAD with ultra-fast AFC.
97 * Packet engine up to 256 bytes with CRC
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99
100
101 == 1.3 Features ==
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103
104 * LoRaWAN Class A & Class C protocol (default Class C)
105 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
106 * AT Commands to change parameters
107 * Remote configure parameters via LoRa Downlink
108 * Firmware upgradable via program port
109 * Support multiply RS485 devices by flexible rules
110 * Support Modbus protocol
111 * Support Interrupt uplink (Since hardware version v1.2)
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113
114
115 == 1.4 Applications ==
116
117
118 * Smart Buildings & Home Automation
119 * Logistics and Supply Chain Management
120 * Smart Metering
121 * Smart Agriculture
122 * Smart Cities
123 * Smart Factory
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125
126
127 == 1.5 Firmware Change log ==
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129
130 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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133
134 == 1.6 Hardware Change log ==
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137 (((
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140 v1.2: Add External Interrupt Pin.
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144 v1.0: Release
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151
152 = 2. Power ON Device =
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156 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
157
158 * Power Source VIN to RS485-LN VIN+
159 * Power Source GND to RS485-LN VIN-
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162 Once there is power, the RS485-LN will be on.
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165 (% aria-label="1653268091319-405.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268091319-405.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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170
171 = 3. Operation Mode =
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173
174 == 3.1 How it works? ==
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177 (((
178 (((
179 The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA.
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185
186 == 3.2 Example to join LoRaWAN network ==
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188
189 Here shows an example for how to join the TTN V3 Network. Below is the network structure, we use [[LG308>>url:http://www.dragino.com/products/lora-lorawan-gateway/item/140-lg308.html]] as LoRaWAN gateway here. 
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192 (% aria-label="1653268155545-638.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1653268155545-638.png||data-widget="image" height="334" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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195 (((
196 (((
197 The RS485-LN in this example connected to two RS485 devices for demonstration, user can connect to other RS485 devices via the same method. The connection is as below:
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200 (((
201 485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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206 (% 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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209 (((
210 The LG308 is already set to connect to [[TTN V3 network >>path:https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:
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216 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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220 Each RS485-LN is shipped with a sticker with unique device EUI:
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224 (% aria-label="1652953462722-299.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953462722-299.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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227 (((
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229 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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235 **Add APP EUI in the application.**
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239 (% aria-label="image-20220519174512-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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241 (% aria-label="image-20220519174512-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-2.png||data-widget="image" height="323" width="720"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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243 (% aria-label="image-20220519174512-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-3.png||data-widget="image" height="556" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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245 (% aria-label="image-20220519174512-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220519174512-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
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248 (% title="Click and drag to resize" %)​
249
250 You can also choose to create the device manually.
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252 (% 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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256 **Add APP KEY and DEV EUI**
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258 (% aria-label="1652953553383-907.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1652953553383-907.png||data-widget="image" height="514" width="724"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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262 (((
263 (% style="color:blue" %)**Step 2**(%%): Power on RS485-LN and it will auto join to the TTN V3 network. After join success, it will start to upload message to TTN V3 and user can see in the panel.
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268 (% 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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270
271
272 == 3.3 Configure Commands to read data ==
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274
275 (((
276 (((
277 (((
278 There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-LNviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
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286 (% style="color:red" %)**Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1**
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293
294 === 3.3.1 Configure UART settings for RS485 or TTL communication ===
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296
297 To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are:
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300 (% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
301 |=(% style="width: 110px;" %)(((
302 **AT Commands**
303 )))|=(% style="width: 210px;" %)(((
304 **Description**
305 )))|=(% style="width: 190px;" %)(((
306 **Example**
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308 |(% style="width:110px" %)(((
309 AT+BAUDR
310 )))|(% style="width:190px" %)(((
311 Set the baud rate (for RS485 connection). Default Value is: 9600.
312 )))|(% style="width:190px" %)(((
313 (((
314 AT+BAUDR=9600
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317 (((
318 Options: (1200,2400,4800,14400,19200,115200)
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321 |(% style="width:110px" %)(((
322 AT+PARITY
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324 Set UART parity (for RS485 connection)
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327 AT+PARITY=0
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331 Option: 0: no parity, 1: odd parity, 2: even parity
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334 |(% style="width:110px" %)(((
335 AT+STOPBIT
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337 (((
338 Set serial stopbit (for RS485 connection)
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344 )))|(% style="width:190px" %)(((
345 (((
346 AT+STOPBIT=0 for 1bit
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349 (((
350 AT+STOPBIT=1 for 1.5 bit
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353 (((
354 AT+STOPBIT=2 for 2 bits
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358
359
360 === 3.3.2 Configure sensors ===
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363 (((
364 (((
365 Some sensors might need to configure before normal operation. User can configure such sensor via PC and RS485 adapter or through RS485-LN AT Commands (% style="color:#4f81bd" %)**AT+CFGDEV**(%%). Each (% style="color:#4f81bd" %)**AT+CFGDEV **(%%)equals to send a RS485 command to sensors. This command will only run when user input it and won't run during each sampling.
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371 (% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
372 |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 210px;" %)**Description**|=(% style="width: 190px;" %)**Example**
373 |AT+CFGDEV|(% style="width:110px" %)(((
374 (((
375 This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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377
378 (((
379 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
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381
382 (((
383 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
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385 )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
386
387
388
389 === 3.3.3 Configure read commands for each sampling ===
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391
392 (((
393 During each sampling, we need confirm what commands we need to send to the RS485 sensors to read data. After the RS485 sensors send back the value, it normally include some bytes and we only need a few from them for a shorten payload.
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395 To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
396
397 This section describes how to achieve above goals.
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399 During each sampling, the RS485-LN can support 15 commands to read sensors. And combine the return to one or several uplink payloads.
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401
402 (% style="color:#037691" %)**Each RS485 commands include two parts:**
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404
405 ~1. What commands RS485-LN will send to the RS485 sensors. There are total 15 commands from **AT+COMMAD1**, **ATCOMMAND2**,…, to **AT+COMMANDF**. All commands are of same grammar.
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407 2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar.
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409 3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms
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412 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**.
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414 Below are examples for the how above AT Commands works.
415
416
417 (% style="color:#037691" %)**AT+COMMANDx **(%%)**: **This command will be sent to RS485 devices during each sampling, Max command length is 14 bytes. The grammar is:
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419 (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
420 |(% style="width:496px" %)(((
421 **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
422
423 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
424
425 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
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427
428 For example, if we have a RS485 sensor. The command to get sensor value is: 01 03 0B B8 00 02 46 0A. Where 01 03 0B B8 00 02 is the Modbus command to read the register 0B B8 where stored the sensor value. The 46 0A is the CRC-16/MODBUS which calculate manually.
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430 In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
431
432
433 (% style="color:#037691" %)**AT+DATACUTx **(%%)**: **This command defines how to handle the return from AT+COMMANDx, max return length is 100 bytes.
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435 (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
436 |(% style="width:510px" %)(((
437 **AT+DATACUTx=a,b,c**
438
439 * **a: length for the return of AT+COMMAND**
440 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
441 * **c: define the position for valid value.  **
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443
444 **Examples:**
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446
447 * (% style="color:#037691" %)**Grab bytes**
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449 (% aria-label="image-20220602153621-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-1.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
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451
452
453 * (% style="color:#037691" %)**Grab a section**
454
455 (% aria-label="image-20220602153621-2.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-2.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
456
457
458
459 * (% style="color:#037691" %)**Grab different sections**
460
461 (% aria-label="image-20220602153621-3.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602153621-3.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
462
463
464
465 )))
466
467 === 3.3.4 Compose the uplink payload ===
468
469
470 (((
471 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.**
472
473
474 )))
475
476 (((
477 (% style="color:#037691" %)**Examples: AT+DATAUP=0**
478
479
480 )))
481
482 (((
483 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
484 )))
485
486 (((
487 Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
488 )))
489
490 (((
491 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
492
493
494 )))
495
496 [[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
497
498
499 (% style="color:#037691" %)**Examples: AT+DATAUP=1**
500
501
502 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
503
504 Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
505
506
507 ~1. PAYVER: Defined by AT+PAYVER
508
509 2. PAYLOAD COUNT: Total how many uplinks of this sampling.
510
511 3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
512
513 4. 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
514
515
516 (% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
517
518
519 So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
520
521 DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
522
523 DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
524
525 DATA3=the rest of Valid value of RETURN10= **30**
526
527
528 (% 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:**
529
530
531 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
532
533 * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
534
535 * For US915 band, max 11 bytes for each uplink.
536
537 ~* For all other bands: max 51 bytes for each uplink.
538
539
540 (% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
541
542 (% style="color:red" %)** When AT+DATAUP=1 and AT+ADR=0, the maximum number of bytes of each payload is determined by the DR value. (Since v1.4.0)**
543
544
545
546 Below are the uplink payloads:
547
548
549 (% aria-label="1654157178836-407.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157178836-407.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
550
551
552
553 === 3.3.5 Uplink on demand ===
554
555
556 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.
557
558 (% style="color:blue" %)**Downlink control command:**
559
560 (% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
561
562 (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
563
564
565
566 === 3.3.6 Uplink on Interrupt ===
567
568
569 RS485-LN support external Interrupt uplink since hardware v1.2 release.
570
571
572 (% aria-label="1654157342174-798.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654157342174-798.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
573
574 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.
575
576
577
578 == 3.4 Uplink Payload ==
579
580
581 (% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
582 |=(% scope="row" style="width: 60px;" %)(((
583 Size(bytes)
584 )))|(% style="width:80px" %)1|(% style="width:360px" %)(((
585 Length depends on the return from the commands
586 )))
587 |=(% style="width: 90px;" %)(((
588 Value
589 )))|(% style="width:114px" %)(((
590 PAYLOAD_VER
591 )))|(% style="width:353px" %)(((
592 If the valid payload is too long and exceed the maximum
593
594 support payload length in server, server will show payload not
595
596 provided in the LoRaWAN server.
597 )))
598
599 (% 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"]]
600
601 (% title="Click and drag to resize" %)​
602
603 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
604
605
606
607 == 3.5 Configure RS485-LN via AT or Downlink ==
608
609
610 (((
611 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
612 )))
613
614 (((
615 There are two kinds of Commands:
616 )))
617
618 * (((
619 (% 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]]
620 )))
621
622 * (((
623 (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
624 )))
625
626 (((
627
628 )))
629
630
631
632 === 3.5.1 Common Commands ===
633
634
635 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]]
636
637
638
639 === 3.5.2 Downlink Response(Since firmware v1.4) ===
640
641
642 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.
643
644
645 (% aria-label="image-20220602163333-5.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602163333-5.png||data-widget="image" height="263" width="1160"]]
646
647 (% title="Click and drag to resize" %)​
648
649 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)
650
651
652
653 === 3.5.3 Sensor related commands ===
654
655
656
657
658 ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
659
660
661 (((
662 This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
663 )))
664
665 (((
666 * (% style="color:#037691" %)**AT Command**
667
668 (((
669 (% style="color:#4472c4" %)** AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**  (%%) m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
670 )))
671 )))
672
673 (((
674
675 )))
676
677 * (((
678 (% style="color:#037691" %)**Downlink Payload**
679 )))
680
681 (((
682 Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
683 )))
684
685 (((
686 Where:
687 )))
688
689 * (((
690 MM: 1: add CRC-16/MODBUS ; 0: no CRC
691 )))
692 * (((
693 NN: The length of RS485 command
694 )))
695 * (((
696 XX XX XX XX: RS485 command total NN bytes
697 )))
698 * (((
699 (((
700 YY: How many bytes will be uplink from the return of this RS485 command,
701 )))
702
703 * (((
704 if YY=0, RS485-LN will execute the downlink command without uplink;
705 )))
706 * (((
707 if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
708 )))
709 * (((
710 if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
711 )))
712 )))
713
714 (((
715
716
717 (% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
718 )))
719
720 (((
721 To connect a Modbus Alarm with below commands.
722 )))
723
724 * (((
725 The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually.
726 )))
727
728 * (((
729 The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually.
730 )))
731
732 (((
733
734
735 So if user want to use downlink command to control to RS485 Alarm, he can use:
736 )))
737
738 (((
739 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
740 )))
741
742 (((
743 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
744 )))
745
746 (((
747 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.
748 )))
749
750 (((
751
752 )))
753
754 (((
755 (% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
756 )))
757
758 (((
759 User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
760 )))
761
762 (((
763
764 )))
765
766 (((
767 (((
768 RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is:  **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00  **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00**
769 )))
770
771
772 )))
773
774 (((
775 (% aria-label="1654159460680-153.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654159460680-153.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
776 )))
777
778
779
780
781 ==== (% style="color:blue" %)**Set Payload version**(%%) ====
782
783
784 (((
785 This is the first byte of the uplink payload. RS485-LN can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload.
786 )))
787
788 (((
789 * (% style="color:#037691" %)**AT Command:**
790
791 (% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
792
793
794 )))
795
796 * (((
797 (% style="color:#037691" %)**Downlink Payload:**
798 )))
799
800 (((
801 (% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
802 )))
803
804 (((
805 (% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
806 )))
807
808
809 **1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
810
811
812 [[image:image-20220824145428-2.png||height="168" width="1300"]]
813
814
815
816 **2 )  if the data intercepted by AT+DATACUT or AT+MBFUN is empty, it will display NULL, and the payload will be filled with n FFs.**
817
818
819 [[image:image-20220824145428-3.png||height="308" width="1200"]]
820
821
822
823
824 ==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
825
826
827 (((
828 AT+COMMANDx or AT+DATACUTx
829 )))
830
831 (((
832 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"]].
833 )))
834
835 (((
836
837 )))
838
839 * (((
840 (% style="color:#037691" %)**AT Command:**
841 )))
842
843 (% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
844
845 (% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
846
847
848 * (((
849 (% style="color:#037691" %)**Downlink Payload:**
850 )))
851
852 (((
853 (% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
854
855
856 )))
857
858 (((
859 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
860
861
862 )))
863
864 (((
865 Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
866 )))
867
868 (((
869 Where:
870 )))
871
872 * (((
873 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
874 )))
875 * (((
876 NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
877 )))
878 * (((
879 LL:  The length of AT+COMMAND or AT+DATACUT command
880 )))
881 * (((
882 XX XX XX XX: AT+COMMAND or AT+DATACUT command
883 )))
884 * (((
885 YY:  If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command.
886 )))
887
888 (((
889
890
891 **Example:**
892 )))
893
894 (((
895 (% 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
896 )))
897
898 (((
899 (% 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**
900 )))
901
902 (((
903 (% 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**
904 )))
905
906
907
908
909 ==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
910
911
912 (((
913 (% style="color:#4472c4" %)** AT+MBFUN**(%%) is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
914 )))
915
916 (((
917 This command is valid since v1.3 firmware version
918 )))
919
920 (((
921 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.
922 )))
923
924 (((
925
926 )))
927
928 (((
929 **Example:**
930 )))
931
932 * (((
933 AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
934 )))
935 * (((
936 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.
937 )))
938 * (((
939 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.
940
941
942 )))
943
944 (% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
945
946 (% title="Click and drag to resize" %)​
947
948 (% aria-label="image-20220602165351-7.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-7.png||data-widget="image"]](% title="Click and drag to resize" %)​
949
950
951
952
953 ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
954
955
956 (((
957 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.
958 )))
959
960 (((
961 Default value: 0, range:  0 ~~ 65 seconds
962 )))
963
964 (((
965 * (% style="color:#037691" %)** AT Command:**
966
967 (% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
968 )))
969
970 (((
971
972
973 **Example:**
974 )))
975
976 (((
977 (% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
978 )))
979
980 (((
981
982 )))
983
984 * (((
985 (% style="color:#037691" %)** Downlink Payload:**
986 )))
987
988 (((
989 (% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
990 )))
991
992 (((
993
994
995 **Example:**
996 )))
997
998 (((
999 **0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
1000 )))
1001
1002
1003
1004
1005 ==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
1006
1007
1008 (((
1009 Define to use one uplink or multiple uplinks for the sampling.
1010 )))
1011
1012 (((
1013 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
1014
1015
1016 )))
1017
1018 (((
1019 * (% style="color:#037691" %)** AT Command:**
1020
1021 (% style="color:#4472c4" %)** AT+DATAUP=0**
1022
1023 (% style="color:#4472c4" %)** AT+DATAUP=1**
1024
1025
1026 )))
1027
1028 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1029
1030 Each uplink is sent to the server at 20-second intervals when segmented.
1031
1032
1033 * (((
1034 (% style="color:#037691" %)** Downlink Payload:**
1035 )))
1036
1037 (% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
1038
1039 (% style="color:#4472c4" %)** 0xAD 01**  (%%) **~-~->** Same as AT+DATAUP=1  ~/~/Each uplink is sent to the server one after the other as it is segmented.
1040
1041
1042 * (((
1043 (% style="color:#037691" %)** AT Command:**
1044 )))
1045
1046 (% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
1047
1048
1049 * (((
1050 (% style="color:#037691" %)** Downlink Payload:**
1051 )))
1052
1053 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1054
1055 Each uplink is sent to the server at 20-second intervals when segmented.
1056
1057
1058
1059
1060 ==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1061
1062
1063 (((
1064 Ask device to send an uplink immediately.
1065 )))
1066
1067 * (((
1068 (% style="color:#037691" %)** AT Command:**
1069 )))
1070
1071 (((
1072 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1073 )))
1074
1075 (((
1076
1077 )))
1078
1079 * (((
1080 (% style="color:#037691" %)** Downlink Payload:**
1081 )))
1082
1083 (((
1084 (% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
1085 )))
1086
1087
1088
1089
1090 ==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1091
1092
1093 (((
1094 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1095
1096
1097 )))
1098
1099 * (((
1100 (% style="color:#037691" %)** AT Command:**
1101 )))
1102
1103 (((
1104 (% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
1105 )))
1106
1107 (((
1108
1109
1110 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1111 )))
1112
1113 (((
1114 Example screen shot after clear all RS485 commands. 
1115 )))
1116
1117 (((
1118
1119 )))
1120
1121 (((
1122 The uplink screen shot is:
1123 )))
1124
1125 (% aria-label="1654160691922-496.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654160691922-496.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1126
1127
1128 * (((
1129 (% style="color:#037691" %)** Downlink Payload:**
1130 )))
1131
1132 (((
1133 (% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
1134 )))
1135
1136
1137
1138
1139 ==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
1140
1141
1142 (((
1143 Set the Rs485 serial communication parameters:
1144 )))
1145
1146 (((
1147 (% style="color:#037691" %)**AT Command:**
1148 )))
1149
1150 (((
1151 * Set Baud Rate
1152 )))
1153
1154 (% style="color:#4472c4" %)** AT+BAUDR=9600** (%%) ~/~/  Options: (200~~115200)  When using low baud rate or receiving multiple bytes, you need to use AT+CMDDL to increase the receive timeout (the default receive timeout is 400ms), otherwise data will be lost
1155
1156
1157 (((
1158 * Set UART Parity
1159 )))
1160
1161 (% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
1162
1163
1164 (((
1165 * Set STOPBIT
1166 )))
1167
1168 (% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1169
1170
1171 (((
1172 (% style="color:#037691" %)**Downlink Payload:**
1173 )))
1174
1175 (((
1176 (% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
1177 )))
1178
1179 (((
1180 **Example:**
1181 )))
1182
1183 * (((
1184 A7 01 00 60  same as AT+BAUDR=9600
1185 )))
1186 * (((
1187 A7 01 04 80  same as AT+BAUDR=115200
1188 )))
1189
1190 (((
1191 * A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1192 )))
1193
1194 (((
1195 * A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1196 )))
1197
1198
1199
1200
1201 ==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1202
1203 * (((
1204 (% style="color:#037691" %)** AT Command:**
1205 )))
1206
1207 **~ AT+DATABIT=7    **~/~/ Set the data bits to 7
1208
1209 **~ AT+DATABIT=8    **~/~/ Set the data bits to 8
1210
1211 * (((
1212 (% style="color:#037691" %)**Downlink Payload:**
1213 )))
1214
1215 **~ A7 04 07**: Same as  AT+DATABIT=7
1216
1217 **~ A7 04 08**: Same as  AT+DATABIT=8
1218
1219
1220
1221 ==== (% style="color:blue" %)**Encrypted payload**(%%) ====
1222
1223 (((
1224
1225 )))
1226
1227 * (((
1228 (% style="color:#037691" %)** AT Command:**
1229 )))
1230
1231 (% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
1232
1233 (% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
1234
1235
1236
1237
1238 ==== (% style="color:blue" %)**Get sensor value**(%%) ====
1239
1240
1241 * (((
1242 (% style="color:#037691" %)** AT Command:**
1243 )))
1244
1245 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
1246
1247 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
1248
1249
1250
1251
1252 ==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
1253
1254
1255 * (((
1256 (% style="color:#037691" %)** AT Command:**
1257 )))
1258
1259 (% style="color:#4472c4" %)** AT+DISFCNTCHECK=0  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node will no longer receive downlink packets (default)
1260
1261 (% style="color:#4472c4" %)** AT+DISFCNTCHECK=1  **(%%) ~/~/  When the downlink packet count sent by the server is less than the node downlink packet count or exceeds 16384, the node resets the downlink packet count and keeps it consistent with the server downlink packet count.
1262
1263
1264
1265
1266 ==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
1267
1268
1269 * (((
1270 (% style="color:#037691" %)** AT Command:**
1271 )))
1272
1273 (% style="color:#4472c4" %)** AT+DISMACANS=0**  (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of 11 bytes (DR0 of US915, DR2 of AS923, DR2 of AU195), the node will send a packet with a payload of 00 and a port of 4. (default)
1274
1275 (% style="color:#4472c4" %)** AT+DISMACANS=1**   (%%) ~/~/  When the MACANS of the reply server plus the payload exceeds the maximum number of bytes of the DR, the node will ignore the MACANS and not reply, and only upload the payload part.
1276
1277
1278 * (((
1279 (% style="color:#037691" %)** Downlink Payload:**
1280 )))
1281
1282 (% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1283
1284
1285
1286
1287 ==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
1288
1289
1290 * (((
1291 (% style="color:#037691" %)** AT Command:**
1292 )))
1293
1294 (% style="color:#4472c4" %)** AT+RPL=5**  (%%) ~/~/ After receiving the package from the server, it will immediately upload the content of the package to the server, the port number is 100.
1295
1296 Example：**aa xx xx xx xx**         ~/~/ aa indicates whether the configuration has changed, 00 is yes, 01 is no; xx xx xx xx are the bytes sent.
1297
1298
1299 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173747-6.png?width=1124&height=165&rev=1.1||alt="image-20220823173747-6.png"]]
1300
1301 For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1302
1303
1304
1305 [[image:http://wiki.dragino.com/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/WebHome/image-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1306
1307 For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1308
1309
1310
1311
1312 ==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
1313
1314
1315 (((
1316 * (% style="color:#037691" %)**Downlink Payload:**
1317
1318 (% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1319 )))
1320
1321
1322 Example：
1323
1324
1325 [[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"]]
1326
1327
1328
1329
1330 ==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
1331
1332
1333 * (((
1334 (% style="color:#037691" %)** AT Command:**
1335 )))
1336
1337 (% style="color:#4472c4" %)**AT+RXMODE=1,10**    (%%) ~/~/ When the RS485-LN receives more than 10 bytes from the RS485, it immediately sends the uplink of the received data.
1338
1339 (% style="color:#4472c4" %)**AT+RXMODE=2,500    ** (%%) ~/~/  RS485-LN uploads data as uplink from the first byte received by RS485 to the data received within 500ms after that.
1340
1341 (% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
1342
1343
1344 * (((
1345 (% style="color:#037691" %)**Downlink Payload:**
1346 )))
1347
1348 (% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/ same as AT+RXMODE=aa,bb
1349
1350 [[image:image-20220824144240-1.png]]
1351
1352
1353
1354 == 3.6 Listening mode for RS485 network ==
1355
1356
1357 (((
1358 This feature support since firmware v1.4
1359 )))
1360
1361 (((
1362 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.
1363
1364
1365 )))
1366
1367 (% aria-label="image-20220602171200-8.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-8.png||data-widget="image" height="567" width="1007"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
1368
1369 (% title="Click and drag to resize" %)​
1370
1371 (((
1372 To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1373 )))
1374
1375 (((
1376
1377 )))
1378
1379 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1380 |=(% style="width: 100px;" %)(((
1381 **Command example**
1382 )))|=(% style="width: 400px;" %)(((
1383 **Function**
1384 )))
1385 |(% style="width:100px" %)(((
1386 AT+RXMODE=1,10
1387 )))|(% style="width:400px" %)(((
1388 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.
1389 )))
1390 |(% style="width:100px" %)(((
1391 AT+RXMODE=2,500
1392 )))|(% style="width:400px" %)(((
1393 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
1394 )))
1395 |(% style="width:100px" %)(((
1396 AT+RXMODE=0,0
1397 )))|(% style="width:400px" %)(((
1398 Disable listening mode. This is the default settings.
1399 )))
1400 |(% style="width:100px" %)(((
1401
1402 )))|(% style="width:400px" %)(((
1403 A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1404 )))
1405
1406 (((
1407
1408
1409 (% style="color:#037691" %)**Downlink Command:**
1410 )))
1411
1412 (((
1413 (% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
1414 )))
1415
1416 (((
1417
1418 )))
1419
1420 (((
1421 **Example**:
1422 )))
1423
1424 (((
1425 The RS485-LN is set to AT+RXMODE=2,1000
1426 )))
1427
1428 (((
1429 There is a two Modbus commands in the RS485 network as below:
1430 )))
1431
1432 (((
1433 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1434 )))
1435
1436 (((
1437 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1438 )))
1439
1440 (((
1441 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
1442
1443
1444 )))
1445
1446 (((
1447 (% aria-label="image-20220602171200-9.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602171200-9.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1448 )))
1449
1450 (((
1451
1452 )))
1453
1454 (((
1455 (((
1456 (% 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.**
1457 )))
1458 )))
1459
1460
1461
1462 == 3.7 Buttons ==
1463
1464
1465 (% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1466 |=(% style="width: 50px;" %)**Button**|=(% style="width: 380px;" %)**Feature**
1467 |(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1468 |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1469 |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1470
1471
1472
1473 == 3.8 LEDs ==
1474
1475
1476 (% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1477 |=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1478 |**PWR**|Always on if there is power
1479 |**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.
1480
1481
1482
1483 = 4. Case Study =
1484
1485
1486 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]]
1487
1488
1489
1490 = 5. Use AT Command =
1491
1492
1493 == 5.1 Access AT Command ==
1494
1495
1496 (((
1497 RS485-LN supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-LN to use AT command, as below.
1498
1499
1500 )))
1501
1502 (% aria-label="1654162355560-817.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162355560-817.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1503
1504
1505
1506 (((
1507 In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-LN. The default password is 123456. Below is the output for reference:
1508
1509
1510 )))
1511
1512 (% aria-label="1654162368066-342.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162368066-342.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1513
1514
1515 (((
1516 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/]]
1517 )))
1518
1519
1520
1521 == 5.2 Common AT Command Sequence ==
1522
1523
1524 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1525
1526
1527 If device has not joined network yet:
1528
1529 * (% style="color:#037691" %)**AT+FDR**
1530 * (% style="color:#037691" %)**AT+NJM=0**
1531 * (% style="color:#037691" %)**ATZ**
1532
1533 (((
1534
1535
1536 If device already joined network:
1537
1538 * (% style="color:#037691" %)**AT+NJM=0**
1539 * (% style="color:#037691" %)**ATZ**
1540
1541
1542 )))
1543
1544
1545
1546 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1547
1548
1549 (% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1550
1551 (% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1552
1553 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1554
1555 (% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1556
1557 (% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1558
1559 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1560
1561 (% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1562
1563 (% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1564
1565 (% 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.
1566
1567 (% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1568
1569
1570 (% style="color:red" %)**Note:**
1571
1572 (((
1573 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1574 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1575 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.
1576 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
1577
1578
1579 )))
1580
1581 (% aria-label="1654162478620-421.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162478620-421.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1582
1583
1584
1585 = 6. FAQ =
1586
1587
1588 == 6.1 How to upgrade the image? ==
1589
1590
1591 (((
1592 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1593 )))
1594
1595 * (((
1596 Support new features
1597 )))
1598 * (((
1599 For bug fix
1600 )))
1601 * (((
1602 Change LoRaWAN bands.
1603 )))
1604
1605 (((
1606 Below shows the hardware connection for how to upload an image to RS485-LN:
1607 )))
1608
1609 (% aria-label="1654162535040-878.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:1654162535040-878.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]]
1610
1611 (% title="Click and drag to resize" %)​
1612
1613 (((
1614 (% style="color:blue" %)**Step1**(%%)**:** Download [[flash loader>>url:https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/flasher-stm32.html]].
1615
1616
1617 )))
1618
1619 (((
1620 (% 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]].
1621
1622
1623 )))
1624
1625 (((
1626 (% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1627
1628
1629 )))
1630
1631 (((
1632 (((
1633 (((
1634 (% 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.
1635 )))
1636 )))
1637 )))
1638
1639
1640 (% aria-label="image-20220602175818-12.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175818-12.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1641
1642
1643 (% aria-label="image-20220602175848-13.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175848-13.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1644
1645
1646 (% aria-label="image-20220602175912-14.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175912-14.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1647
1648
1649 (% style="color:red" %)**Notice**: **In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is:**
1650
1651 (% aria-label="image-20220602175638-10.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602175638-10.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
1652
1653
1654
1655 == 6.2 How to change the LoRa Frequency Bands/Region? ==
1656
1657
1658 User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1659
1660
1661
1662 == 6.3 How many RS485-Slave can RS485-LN connects? ==
1663
1664
1665 The RS485-LN can support max 32 RS485 devices. Each uplink command of RS485-LN can support max 16 different RS485 command. So RS485-LN can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].
1666
1667
1668
1669 == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1670
1671
1672 When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1673
1674 Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1675
1676
1677
1678 == 6.5 Can i use point to point communication for RS485-LN? ==
1679
1680
1681 Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1682
1683
1684
1685 == 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1686
1687
1688 [[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1689
1690
1691
1692 = 7. Trouble Shooting =
1693
1694
1695 == 7.1 Downlink doesn't work, how to solve it? ==
1696
1697
1698 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1699
1700
1701
1702 == 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1703
1704
1705 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1706
1707
1708
1709 = 8. Order Info =
1710
1711
1712 (% style="color:blue" %)**Part Number: RS485-LN-XXX**
1713
1714 (% style="color:blue" %)**XXX:**
1715
1716 * (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1717 * (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1718 * (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1719 * (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1720 * (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1721 * (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1722 * (% style="color:red" %)**US915**(%%):  frequency bands US915
1723 * (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1724 * (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1725 * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1726
1727
1728
1729 = 9.Packing Info =
1730
1731
1732 **Package Includes**:
1733
1734 * RS485-LN x 1
1735 * Stick Antenna for LoRa RF part x 1
1736 * Program cable x 1
1737
1738 **Dimension and weight**:
1739
1740 * Device Size: 13.5 x 7 x 3 cm
1741 * Device Weight: 105g
1742 * Package Size / pcs : 14.5 x 8 x 5 cm
1743 * Weight / pcs : 170g
1744
1745
1746
1747 = 10. FCC Caution for RS485LN-US915 =
1748
1749
1750 (((
1751 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1752 )))
1753
1754 (((
1755 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.
1756 )))
1757
1758 (((
1759
1760 )))
1761
1762 (((
1763 (% style="color:red" %)**IMPORTANT NOTE:**
1764 )))
1765
1766 (((
1767 (% style="color:red" %)**Note: **(%%)This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
1768 )))
1769
1770 (((
1771 —Reorient or relocate the receiving antenna.
1772 )))
1773
1774 (((
1775 —Increase the separation between the equipment and receiver.
1776 )))
1777
1778 (((
1779 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1780 )))
1781
1782 (((
1783 —Consult the dealer or an experienced radio/TV technician for help.
1784 )))
1785
1786 (((
1787
1788 )))
1789
1790 (((
1791 (% style="color:red" %)**FCC Radiation Exposure Statement:**
1792 )))
1793
1794 (((
1795 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.
1796 )))
1797
1798
1799
1800 = 11. Support =
1801
1802
1803 * (((
1804 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.
1805 )))
1806 * (((
1807 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]].
1808
1809
1810
1811 )))