Version 98.1 by Bei Jinggeng on 2022/12/06 09:45
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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 == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
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36 (((
37 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 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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45 (% 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 (% 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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53 (% 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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57 (% 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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59
60 == 1.2 Specifications ==
61
62
63 (% style="color:#037691" %)**Hardware System:**
64
65 * STM32L072xxxx MCU
66 * SX1276/78 Wireless Chip 
67 * Power Consumption (exclude RS485 device):
68 ** Idle: 32mA@12v
69 ** 20dB Transmit: 65mA@12v
70
71 (% style="color:#037691" %)**Interface for Model:**
72
73 * RS485
74 * Power Input 7~~ 24V DC. 
75
76 (% style="color:#037691" %)**LoRa Spec:**
77
78 * Frequency Range:
79 ** Band 1 (HF): 862 ~~ 1020 Mhz
80 ** Band 2 (LF): 410 ~~ 528 Mhz
81 * 168 dB maximum link budget.
82 * +20 dBm - 100 mW constant RF output vs.
83 * +14 dBm high efficiency PA.
84 * Programmable bit rate up to 300 kbps.
85 * High sensitivity: down to -148 dBm.
86 * Bullet-proof front end: IIP3 = -12.5 dBm.
87 * Excellent blocking immunity.
88 * Low RX current of 10.3 mA, 200 nA register retention.
89 * Fully integrated synthesizer with a resolution of 61 Hz.
90 * FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
91 * Built-in bit synchronizer for clock recovery.
92 * Preamble detection.
93 * 127 dB Dynamic Range RSSI.
94 * Automatic RF Sense and CAD with ultra-fast AFC.
95 * Packet engine up to 256 bytes with CRC
96
97
98 == 1.3 Features ==
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100
101 * LoRaWAN Class A & Class C protocol (default Class C)
102 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
103 * AT Commands to change parameters
104 * Remote configure parameters via LoRa Downlink
105 * Firmware upgradable via program port
106 * Support multiply RS485 devices by flexible rules
107 * Support Modbus protocol
108 * Support Interrupt uplink (Since hardware version v1.2)
109
110
111 == 1.4 Applications ==
112
113
114 * Smart Buildings & Home Automation
115 * Logistics and Supply Chain Management
116 * Smart Metering
117 * Smart Agriculture
118 * Smart Cities
119 * Smart Factory
120
121
122 == 1.5 Firmware Change log ==
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124
125 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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128
129 == 1.6 Hardware Change log ==
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135 v1.2: Add External Interrupt Pin.
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139 v1.0: Release
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145
146 = 2. Power ON Device =
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150 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
151
152 * Power Source VIN to RS485-LN VIN+
153 * Power Source GND to RS485-LN VIN-
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156 Once there is power, the RS485-LN will be on.
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159 (% 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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163
164 = 3. Operation Mode =
165
166 == 3.1 How it works? ==
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171 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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176
177 == 3.2 Example to join LoRaWAN network ==
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180 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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183 (% 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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188 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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192 485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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197 (% 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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201 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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207 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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211 Each RS485-LN is shipped with a sticker with unique device EUI:
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215 (% 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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220 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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226 **Add APP EUI in the application.**
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230 (% 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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232 (% 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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234 (% 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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236 (% 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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239 (% title="Click and drag to resize" %)​
240
241 You can also choose to create the device manually.
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243 (% 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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246
247 **Add APP KEY and DEV EUI**
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249 (% 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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254 (% 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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259 (% 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" %)​
260
261
262 == 3.3 Configure Commands to read data ==
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264
265 (((
266 (((
267 (((
268 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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276 (% 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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282
283 === 3.3.1 Configure UART settings for RS485 or TTL communication ===
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285
286 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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289 (% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
290 |=(% style="width: 110px;" %)(((
291 **AT Commands**
292 )))|=(% style="width: 210px;" %)(((
293 **Description**
294 )))|=(% style="width: 190px;" %)(((
295 **Example**
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297 |(% style="width:110px" %)(((
298 AT+BAUDR
299 )))|(% style="width:190px" %)(((
300 Set the baud rate (for RS485 connection). Default Value is: 9600.
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302 (((
303 AT+BAUDR=9600
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306 (((
307 Options: (1200,2400,4800,14400,19200,115200)
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310 |(% style="width:110px" %)(((
311 AT+PARITY
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313 Set UART parity (for RS485 connection)
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316 AT+PARITY=0
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320 Option: 0: no parity, 1: odd parity, 2: even parity
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323 |(% style="width:110px" %)(((
324 AT+STOPBIT
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327 Set serial stopbit (for RS485 connection)
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333 )))|(% style="width:190px" %)(((
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335 AT+STOPBIT=0 for 1bit
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338 (((
339 AT+STOPBIT=1 for 1.5 bit
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342 (((
343 AT+STOPBIT=2 for 2 bits
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346
347
348 === 3.3.2 Configure sensors ===
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351 (((
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353 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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359 (% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
360 |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 210px;" %)**Description**|=(% style="width: 190px;" %)**Example**
361 |AT+CFGDEV|(% style="width:110px" %)(((
362 (((
363 This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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365
366 (((
367 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
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369
370 (((
371 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
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373 )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
374
375
376 === 3.3.3 Configure read commands for each sampling ===
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378
379 (((
380 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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382 To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
383
384 This section describes how to achieve above goals.
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386 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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388
389 (% style="color:#037691" %)**Each RS485 commands include two parts:**
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391
392 ~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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394 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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396 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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399 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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401 Below are examples for the how above AT Commands works.
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403
404 (% 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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406 (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
407 |(% style="width:496px" %)(((
408 **AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
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410 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
411
412 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
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414
415 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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417 In the RS485-LN, we should use this command AT+COMMAND1=01 03 0B B8 00 02,1 for the same.
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419
420 (% 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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422 (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
423 |(% style="width:510px" %)(((
424 **AT+DATACUTx=a,b,c**
425
426 * **a: length for the return of AT+COMMAND**
427 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
428 * **c: define the position for valid value.  **
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430
431 **Examples:**
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433
434 * (% style="color:#037691" %)**Grab bytes**
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436 (% 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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439
440 * (% style="color:#037691" %)**Grab a section**
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442 (% 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" %)​
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444
445
446 * (% style="color:#037691" %)**Grab different sections**
447
448 (% 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" %)​
449
450
451 )))
452
453 === 3.3.4 Compose the uplink payload ===
454
455
456 (((
457 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.**
458
459
460 )))
461
462 (((
463 (% style="color:#037691" %)**Examples: AT+DATAUP=0**
464
465
466 )))
467
468 (((
469 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
470 )))
471
472 (((
473 Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
474 )))
475
476 (((
477 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
478
479
480 )))
481
482 [[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
483
484
485 (% style="color:#037691" %)**Examples: AT+DATAUP=1**
486
487
488 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
489
490 Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
491
492
493 ~1. PAYVER: Defined by AT+PAYVER
494
495 2. PAYLOAD COUNT: Total how many uplinks of this sampling.
496
497 3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
498
499 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
500
501
502 (% 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" %)​
503
504
505 So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
506
507 DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
508
509 DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
510
511 DATA3=the rest of Valid value of RETURN10= **30**
512
513
514 (% 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:**
515
516
517 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
518
519 * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
520
521 * For US915 band, max 11 bytes for each uplink.
522
523 ~* For all other bands: max 51 bytes for each uplink.
524
525
526 (% style="color:red" %)** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
527
528 (% 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)**
529
530
531
532 Below are the uplink payloads:
533
534
535 (% 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" %)​
536
537
538 === 3.3.5 Uplink on demand ===
539
540
541 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.
542
543 (% style="color:blue" %)**Downlink control command:**
544
545 (% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
546
547 (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
548
549
550 === 3.3.6 Uplink on Interrupt ===
551
552
553 RS485-LN support external Interrupt uplink since hardware v1.2 release.
554
555
556 (% 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" %)​
557
558 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.
559
560
561 == 3.4 Uplink Payload ==
562
563
564 (% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
565 |=(% scope="row" style="width: 60px;" %)(((
566 Size(bytes)
567 )))|(% style="width:80px" %)1|(% style="width:360px" %)(((
568 Length depends on the return from the commands
569 )))
570 |=(% style="width: 90px;" %)(((
571 Value
572 )))|(% style="width:114px" %)(((
573 PAYLOAD_VER
574 )))|(% style="width:353px" %)(((
575 If the valid payload is too long and exceed the maximum
576
577 support payload length in server, server will show payload not
578
579 provided in the LoRaWAN server.
580 )))
581
582 (% 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"]]
583
584 (% title="Click and drag to resize" %)​
585
586 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
587
588
589 == 3.5 Configure RS485-LN via AT or Downlink ==
590
591
592 (((
593 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
594 )))
595
596 (((
597 There are two kinds of Commands:
598 )))
599
600 * (((
601 (% 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]]
602 )))
603
604 * (((
605 (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
606 )))
607
608 (((
609
610 )))
611
612
613
614 === 3.5.1 Common Commands ===
615
616
617 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]]
618
619
620 === 3.5.2 Downlink Response(Since firmware v1.4) ===
621
622
623 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.
624
625
626 (% 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"]]
627
628 (% title="Click and drag to resize" %)​
629
630 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)
631
632
633 === 3.5.3 Sensor related commands ===
634
635
636
637 ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
638
639
640 (((
641 This command is used to configure the RS485 devices; they won't be used during sampling. Max Length of AT+CFGDEV is **40 bytes**.
642 )))
643
644 (((
645 * (% style="color:#037691" %)**AT Command**
646
647 (((
648 (% 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
649 )))
650 )))
651
652 (((
653
654 )))
655
656 * (((
657 (% style="color:#037691" %)**Downlink Payload**
658 )))
659
660 (((
661 Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
662 )))
663
664 (((
665 Where:
666 )))
667
668 * (((
669 MM: 1: add CRC-16/MODBUS ; 0: no CRC
670 )))
671 * (((
672 NN: The length of RS485 command
673 )))
674 * (((
675 XX XX XX XX: RS485 command total NN bytes
676 )))
677 * (((
678 (((
679 YY: How many bytes will be uplink from the return of this RS485 command,
680 )))
681
682 * (((
683 if YY=0, RS485-LN will execute the downlink command without uplink;
684 )))
685 * (((
686 if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
687 )))
688 * (((
689 if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
690 )))
691 )))
692
693 (((
694
695
696 (% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
697 )))
698
699 (((
700 To connect a Modbus Alarm with below commands.
701 )))
702
703 * (((
704 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.
705 )))
706
707 * (((
708 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.
709 )))
710
711 (((
712
713
714 So if user want to use downlink command to control to RS485 Alarm, he can use:
715 )))
716
717 (((
718 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
719 )))
720
721 (((
722 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
723 )))
724
725 (((
726 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.
727 )))
728
729 (((
730
731 )))
732
733 (((
734 (% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
735 )))
736
737 (((
738 User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
739 )))
740
741 (((
742
743 )))
744
745 (((
746 (((
747 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**
748 )))
749
750
751 )))
752
753 (((
754 (% 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" %)​
755 )))
756
757
758
759
760 ==== (% style="color:blue" %)**Set Payload version**(%%) ====
761
762
763 (((
764 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.
765 )))
766
767 (((
768 * (% style="color:#037691" %)**AT Command:**
769
770 (% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
771
772
773 )))
774
775 * (((
776 (% style="color:#037691" %)**Downlink Payload:**
777 )))
778
779 (((
780 (% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
781 )))
782
783 (((
784 (% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
785 )))
786
787
788 **1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)**
789
790
791 [[image:image-20220824145428-2.png||height="168" width="1300"]]
792
793
794
795 **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.**
796
797
798 [[image:image-20220824145428-3.png||height="308" width="1200"]]
799
800
801
802
803 ==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
804
805
806 (((
807 AT+COMMANDx or AT+DATACUTx
808 )))
809
810 (((
811 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"]].
812 )))
813
814 (((
815
816 )))
817
818 * (((
819 (% style="color:#037691" %)**AT Command:**
820 )))
821
822 (% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
823
824 (% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
825
826
827 * (((
828 (% style="color:#037691" %)**Downlink Payload:**
829 )))
830
831 (((
832 (% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
833
834
835 )))
836
837 (((
838 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
839
840
841 )))
842
843 (((
844 Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
845 )))
846
847 (((
848 Where:
849 )))
850
851 * (((
852 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
853 )))
854 * (((
855 NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
856 )))
857 * (((
858 LL:  The length of AT+COMMAND or AT+DATACUT command
859 )))
860 * (((
861 XX XX XX XX: AT+COMMAND or AT+DATACUT command
862 )))
863 * (((
864 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.
865 )))
866
867 (((
868
869
870 **Example:**
871 )))
872
873 (((
874 (% 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
875 )))
876
877 (((
878 (% 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**
879 )))
880
881 (((
882 (% 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**
883 )))
884
885
886
887
888 ==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
889
890
891 (((
892 (% 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]].
893 )))
894
895 (((
896 This command is valid since v1.3 firmware version
897 )))
898
899 (((
900 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.
901 )))
902
903 (((
904
905 )))
906
907 (((
908 **Example:**
909 )))
910
911 * (((
912 AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
913 )))
914 * (((
915 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.
916 )))
917 * (((
918 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.
919
920
921 )))
922
923 (% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]]
924
925 (% title="Click and drag to resize" %)​
926
927 (% 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" %)​
928
929
930
931
932 ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
933
934
935 (((
936 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.
937 )))
938
939 (((
940 Default value: 0, range:  0 ~~ 65 seconds
941 )))
942
943 (((
944 * (% style="color:#037691" %)** AT Command:**
945
946 (% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
947 )))
948
949 (((
950
951
952 **Example:**
953 )))
954
955 (((
956 (% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
957 )))
958
959 (((
960
961 )))
962
963 * (((
964 (% style="color:#037691" %)** Downlink Payload:**
965 )))
966
967 (((
968 (% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
969 )))
970
971 (((
972
973
974 **Example:**
975 )))
976
977 (((
978 **0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
979 )))
980
981
982
983
984 ==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
985
986
987 (((
988 Define to use one uplink or multiple uplinks for the sampling.
989 )))
990
991 (((
992 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
993
994
995 )))
996
997 (((
998 * (% style="color:#037691" %)** AT Command:**
999
1000 (% style="color:#4472c4" %)** AT+DATAUP=0**
1001
1002 (% style="color:#4472c4" %)** AT+DATAUP=1**
1003
1004
1005 )))
1006
1007 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1008
1009 Each uplink is sent to the server at 20-second intervals when segmented.
1010
1011
1012 * (((
1013 (% style="color:#037691" %)** Downlink Payload:**
1014 )))
1015
1016 (% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
1017
1018 (% 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.
1019
1020
1021 * (((
1022 (% style="color:#037691" %)** AT Command:**
1023 )))
1024
1025 (% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
1026
1027
1028 * (((
1029 (% style="color:#037691" %)** Downlink Payload:**
1030 )))
1031
1032 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1033
1034 Each uplink is sent to the server at 20-second intervals when segmented.
1035
1036
1037
1038
1039 ==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1040
1041
1042 (((
1043 Ask device to send an uplink immediately.
1044 )))
1045
1046 * (((
1047 (% style="color:#037691" %)** AT Command:**
1048 )))
1049
1050 (((
1051 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1052 )))
1053
1054 (((
1055
1056 )))
1057
1058 * (((
1059 (% style="color:#037691" %)** Downlink Payload:**
1060 )))
1061
1062 (((
1063 (% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
1064 )))
1065
1066
1067
1068
1069 ==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1070
1071
1072 (((
1073 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1074
1075
1076 )))
1077
1078 * (((
1079 (% style="color:#037691" %)** AT Command:**
1080 )))
1081
1082 (((
1083 (% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
1084 )))
1085
1086 (((
1087
1088
1089 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1090 )))
1091
1092 (((
1093 Example screen shot after clear all RS485 commands. 
1094 )))
1095
1096 (((
1097
1098 )))
1099
1100 (((
1101 The uplink screen shot is:
1102 )))
1103
1104 (% 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" %)​
1105
1106
1107 * (((
1108 (% style="color:#037691" %)** Downlink Payload:**
1109 )))
1110
1111 (((
1112 (% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
1113 )))
1114
1115
1116
1117
1118 ==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
1119
1120
1121 (((
1122 Set the Rs485 serial communication parameters:
1123 )))
1124
1125 (((
1126 (% style="color:#037691" %)**AT Command:**
1127 )))
1128
1129 (((
1130 * Set Baud Rate
1131 )))
1132
1133 (% 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
1134
1135
1136 (((
1137 * Set UART Parity
1138 )))
1139
1140 (% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
1141
1142
1143 (((
1144 * Set STOPBIT
1145 )))
1146
1147 (% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1148
1149
1150 (((
1151 (% style="color:#037691" %)**Downlink Payload:**
1152 )))
1153
1154 (((
1155 (% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
1156 )))
1157
1158 (((
1159 **Example:**
1160 )))
1161
1162 * (((
1163 A7 01 00 60  same as AT+BAUDR=9600
1164 )))
1165 * (((
1166 A7 01 04 80  same as AT+BAUDR=115200
1167 )))
1168
1169 (((
1170 * A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1171 )))
1172
1173 (((
1174 * A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1175 )))
1176
1177
1178
1179
1180 ==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1181
1182
1183 * (((
1184 (% style="color:#037691" %)** AT Command:**
1185 )))
1186
1187 (% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
1188
1189 (% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
1190
1191 * (((
1192 (% style="color:#037691" %)**Downlink Payload:**
1193 )))
1194
1195 (% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
1196
1197 (% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
1198
1199
1200
1201 ==== (% style="color:blue" %)**Encrypted payload**(%%) ====
1202
1203 (((
1204
1205 )))
1206
1207 * (((
1208 (% style="color:#037691" %)** AT Command:**
1209 )))
1210
1211 (% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
1212
1213 (% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
1214
1215
1216
1217
1218 ==== (% style="color:blue" %)**Get sensor value**(%%) ====
1219
1220
1221 * (((
1222 (% style="color:#037691" %)** AT Command:**
1223 )))
1224
1225 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
1226
1227 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
1228
1229
1230
1231
1232 ==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
1233
1234
1235 * (((
1236 (% style="color:#037691" %)** AT Command:**
1237 )))
1238
1239 (% 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)
1240
1241 (% 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.
1242
1243
1244
1245
1246 ==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
1247
1248
1249 * (((
1250 (% style="color:#037691" %)** AT Command:**
1251 )))
1252
1253 (% 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)
1254
1255 (% 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.
1256
1257
1258 * (((
1259 (% style="color:#037691" %)** Downlink Payload:**
1260 )))
1261
1262 (% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1263
1264
1265
1266
1267 ==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
1268
1269
1270 * (((
1271 (% style="color:#037691" %)** AT Command:**
1272 )))
1273
1274 (% 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.
1275
1276 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.
1277
1278
1279 [[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"]]
1280
1281 For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
1282
1283
1284
1285 [[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"]]
1286
1287 For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1288
1289
1290
1291
1292 ==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
1293
1294
1295 (((
1296 * (% style="color:#037691" %)**Downlink Payload:**
1297
1298 (% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1299 )))
1300
1301
1302 Example：
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-20220823173929-8.png?width=1205&height=76&rev=1.1||alt="image-20220823173929-8.png"]]
1306
1307
1308
1309
1310 ==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
1311
1312
1313 * (((
1314 (% style="color:#037691" %)** AT Command:**
1315 )))
1316
1317 (% 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.
1318
1319 (% 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.
1320
1321 (% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
1322
1323
1324 * (((
1325 (% style="color:#037691" %)**Downlink Payload:**
1326 )))
1327
1328 (% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/ same as AT+RXMODE=aa,bb
1329
1330 [[image:image-20220824144240-1.png]]
1331
1332
1333 == 3.6 Listening mode for RS485 network ==
1334
1335
1336 (((
1337 This feature support since firmware v1.4
1338 )))
1339
1340 (((
1341 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.
1342
1343
1344 )))
1345
1346 (% 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"]]
1347
1348 (% title="Click and drag to resize" %)​
1349
1350 (((
1351 To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1352 )))
1353
1354 (((
1355
1356 )))
1357
1358 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1359 |=(% style="width: 100px;" %)(((
1360 **Command example**
1361 )))|=(% style="width: 400px;" %)(((
1362 **Function**
1363 )))
1364 |(% style="width:100px" %)(((
1365 AT+RXMODE=1,10
1366 )))|(% style="width:400px" %)(((
1367 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.
1368 )))
1369 |(% style="width:100px" %)(((
1370 AT+RXMODE=2,500
1371 )))|(% style="width:400px" %)(((
1372 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
1373 )))
1374 |(% style="width:100px" %)(((
1375 AT+RXMODE=0,0
1376 )))|(% style="width:400px" %)(((
1377 Disable listening mode. This is the default settings.
1378 )))
1379 |(% style="width:100px" %)(((
1380
1381 )))|(% style="width:400px" %)(((
1382 A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1383 )))
1384
1385 (((
1386
1387
1388 (% style="color:#037691" %)**Downlink Command:**
1389 )))
1390
1391 (((
1392 (% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
1393 )))
1394
1395 (((
1396
1397 )))
1398
1399 (((
1400 **Example**:
1401 )))
1402
1403 (((
1404 The RS485-LN is set to AT+RXMODE=2,1000
1405 )))
1406
1407 (((
1408 There is a two Modbus commands in the RS485 network as below:
1409 )))
1410
1411 (((
1412 The Modbus master send a command: (% style="background-color:#ffc000" %)**01 03 00 00 00 02 c4 0b**
1413 )))
1414
1415 (((
1416 And Modbus slave reply with: (% style="background-color:green" %)**01 03 04 00 00 00 00 fa 33**
1417 )))
1418
1419 (((
1420 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**
1421
1422
1423 )))
1424
1425 (((
1426 (% 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" %)​
1427 )))
1428
1429 (((
1430
1431 )))
1432
1433 (((
1434 (((
1435 (% 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.**
1436 )))
1437 )))
1438
1439
1440 == 3.7 Buttons ==
1441
1442
1443 (% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1444 |=(% style="width: 50px;" %)**Button**|=(% style="width: 380px;" %)**Feature**
1445 |(% 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**
1446 |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1447 |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1448
1449
1450 == 3.8 LEDs ==
1451
1452
1453 (% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1454 |=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1455 |**PWR**|Always on if there is power
1456 |**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.
1457
1458
1459 = 4. Case Study =
1460
1461
1462 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]]
1463
1464
1465 = 5. Use AT Command =
1466
1467 == 5.1 Access AT Command ==
1468
1469
1470 (((
1471 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.
1472
1473
1474 )))
1475
1476 (% 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" %)​
1477
1478
1479
1480 (((
1481 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:
1482
1483
1484 )))
1485
1486 (% 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" %)​
1487
1488
1489 (((
1490 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/]]
1491 )))
1492
1493
1494 == 5.2 Common AT Command Sequence ==
1495
1496 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1497
1498
1499 If device has not joined network yet:
1500
1501 * (% style="color:#037691" %)**AT+FDR**
1502 * (% style="color:#037691" %)**AT+NJM=0**
1503 * (% style="color:#037691" %)**ATZ**
1504
1505 (((
1506
1507
1508 If device already joined network:
1509
1510 * (% style="color:#037691" %)**AT+NJM=0**
1511 * (% style="color:#037691" %)**ATZ**
1512
1513
1514 )))
1515
1516
1517
1518 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1519
1520
1521 (% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1522
1523 (% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1524
1525 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1526
1527 (% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1528
1529 (% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1530
1531 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1532
1533 (% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1534
1535 (% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1536
1537 (% 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.
1538
1539 (% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1540
1541
1542 (% style="color:red" %)**Note:**
1543
1544 (((
1545 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1546 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1547 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.
1548 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
1549
1550
1551 )))
1552
1553 (% 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" %)​
1554
1555
1556 = 6. FAQ =
1557
1558 == 6.1 How to upgrade the image? ==
1559
1560
1561 (((
1562 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1563 )))
1564
1565 * (((
1566 Support new features
1567 )))
1568 * (((
1569 For bug fix
1570 )))
1571 * (((
1572 Change LoRaWAN bands.
1573 )))
1574
1575 (((
1576 Below shows the hardware connection for how to upload an image to RS485-LN:
1577 )))
1578
1579 (% 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"]]
1580
1581 (% title="Click and drag to resize" %)​
1582
1583 (((
1584 (% 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]].
1585
1586
1587 )))
1588
1589 (((
1590 (% 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]].
1591
1592
1593 )))
1594
1595 (((
1596 (% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1597
1598
1599 )))
1600
1601 (((
1602 (((
1603 (((
1604 (% 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.
1605 )))
1606 )))
1607 )))
1608
1609
1610 (% 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" %)​
1611
1612
1613 (% 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" %)​
1614
1615
1616 (% 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" %)​
1617
1618
1619 (% 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:**
1620
1621 (% 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" %)​
1622
1623
1624 == 6.2 How to change the LoRa Frequency Bands/Region? ==
1625
1626
1627 User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1628
1629
1630 == 6.3 How many RS485-Slave can RS485-LN connects? ==
1631
1632
1633 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"]].
1634
1635
1636 == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1637
1638
1639 When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1640
1641 Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1642
1643
1644 == 6.5 Can i use point to point communication for RS485-LN? ==
1645
1646
1647 Yes, please updating point-to-point [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]]，then refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1648
1649
1650 == 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1651
1652
1653 [[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/]]
1654
1655
1656 == 6.7 How to judge whether there is a problem with the set COMMAND ==
1657
1658 === 6.7.1 Introduce: ===
1659
1660
1661 Users can use below the structure to fast debug the communication between RS485BL and RS485-LN. The principle is to put the PC in the RS485 network and sniff the packet between Modbus MTU and RS485-BL/LN. We can use this way to:
1662
1663 1. Test if Modbus-MTU works with PC commands.
1664 1. Check if RS485-LN sent the expected command to Mobus-MTU
1665 1. Check if Modbus-MTU return back the expected result to RS485-LN.
1666 1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1667
1668 [[image:image-20221130104310-1.png||height="380" width="680"]]
1669
1670
1671 Example Connection:
1672
1673 [[image:image-20221130104310-2.png]]
1674
1675
1676 === 6.7.2 Set up PC to monitor RS485 network With Serial tool ===
1677
1678
1679 (% style="color:red" %)**Note: Receive and send set to hex mode**
1680
1681 [[image:image-20221130104310-3.png||height="616" width="714"]]
1682
1683
1684 === 6.7.3 With ModRSsim2: ===
1685
1686
1687 (% style="color:blue" %)**(1) Select serial port MODBUS RS-232**
1688
1689 [[image:image-20221130104310-4.png||height="390" width="865"]]
1690
1691
1692 (% style="color:blue" %)**(2) Click the serial port icon**
1693
1694 [[image:image-20221130104310-5.png||height="392" width="870"]]
1695
1696
1697 (% style="color:blue" %)**(3) After selecting the correct serial port and baud rate, click ok**
1698
1699 [[image:image-20221130104310-6.png]]
1700
1701
1702 (% style="color:blue" %)**(4) Click the comms.**
1703
1704 [[image:image-20221130104310-7.png||height="376" width="835"]]
1705
1706 (% class="wikigeneratedid" id="HRunRS485-LN2FBLcommandandmonitorifitiscorrect." %)
1707 **Run RS485-LN/BL command and monitor if it is correct.**
1708
1709
1710 === 6.7.4 Example – Test the CFGDEV command ===
1711
1712
1713 RS485-LN sent below command:
1714
1715 (% style="color:blue" %)**AT+CFGDEV=01 03 20 00 01 85 c0,1**(%%) to RS485 network, and PC is able to get this command and return commands from MTU to show in the serial tool.
1716
1717
1718 We can see the output from the Serial port tool to analyze. And check if they are expected result.
1719
1720 [[image:image-20221130104310-8.png||height="214" width="797"]]
1721
1722
1723 We can also use (% style="color:blue" %)**ModRSsim2**(%%) to see the output.
1724
1725 [[image:image-20221130104310-9.png||height="531" width="729"]]
1726
1727
1728 === 6.7.5 Example – Test CMD command sets. ===
1729
1730
1731 Run (% style="color:blue" %)**AT+SENSORVALUE=1**(%%) to test the CMD commands set in RS485-LN.
1732
1733
1734 (% style="color:blue" %)**Serial port tool:**
1735
1736 [[image:image-20221130104310-10.png||height="339" width="844"]]
1737
1738
1739 (% style="color:blue" %)**ModRSsim2:**
1740
1741 [[image:image-20221130104310-11.png||height="281" width="962"]]
1742
1743
1744 === 6.7.6 Test with PC ===
1745
1746
1747 If there is still have problem to set up correctly the commands between RS485-LN and MTU. User can test the correct RS485 command set in PC and compare with the RS485 command sent out via RS485-LN. as long as both commands are the same, the MTU should return correct result.
1748
1749
1750 Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
1751
1752 (% style="color:blue" %)**Connection method：**
1753
1754 [[image:image-20221130104310-12.png]]
1755
1756
1757 (% style="color:blue" %)**Link situation:**
1758
1759 [[image:image-20221130104310-13.png||height="458" width="486"]]
1760
1761
1762 [[image:image-20221130104310-14.png||height="371" width="823"]]
1763
1764
1765 == 6.8 Where to get the decoder for RS485-LN? ==
1766
1767 The decoder for RS485-LN needs to be written by yourself. Because the sensor to which the user is connected is custom, the read device data bytes also need custom parsing, so there is no universal decoder. We can only provide templates for decoders (no intermediate data parsing part involved)
1768
1769
1770 = 7. Trouble Shooting =
1771
1772 == 7.1 Downlink doesn't work, how to solve it? ==
1773
1774
1775 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1776
1777
1778 == 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1779
1780
1781 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1782
1783
1784 = 8. Order Info =
1785
1786
1787 (% style="color:blue" %)**Part Number: RS485-LN-XXX**
1788
1789 (% style="color:blue" %)**XXX:**
1790
1791 * (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1792 * (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1793 * (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1794 * (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1795 * (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1796 * (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1797 * (% style="color:red" %)**US915**(%%):  frequency bands US915
1798 * (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1799 * (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1800 * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1801
1802
1803 = 9.Packing Info =
1804
1805
1806 **Package Includes**:
1807
1808 * RS485-LN x 1
1809 * Stick Antenna for LoRa RF part x 1
1810 * Program cable x 1
1811
1812 **Dimension and weight**:
1813
1814 * Device Size: 13.5 x 7 x 3 cm
1815 * Device Weight: 105g
1816 * Package Size / pcs : 14.5 x 8 x 5 cm
1817 * Weight / pcs : 170g
1818
1819
1820 = 10. FCC Caution for RS485LN-US915 =
1821
1822
1823 (((
1824 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1825 )))
1826
1827 (((
1828 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.
1829 )))
1830
1831 (((
1832
1833 )))
1834
1835 (((
1836 (% style="color:red" %)**IMPORTANT NOTE:**
1837 )))
1838
1839 (((
1840 (% 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:
1841 )))
1842
1843 (((
1844 —Reorient or relocate the receiving antenna.
1845 )))
1846
1847 (((
1848 —Increase the separation between the equipment and receiver.
1849 )))
1850
1851 (((
1852 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1853 )))
1854
1855 (((
1856 —Consult the dealer or an experienced radio/TV technician for help.
1857 )))
1858
1859 (((
1860
1861 )))
1862
1863 (((
1864 (% style="color:red" %)**FCC Radiation Exposure Statement:**
1865 )))
1866
1867 (((
1868 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.
1869 )))
1870
1871
1872 = 11. Support =
1873
1874
1875 * (((
1876 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.
1877 )))
1878 * (((
1879 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]].
1880
1881
1882
1883 )))

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