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Version 75.1 by Bei Jinggeng on 2022/09/29 11:11
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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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31 = 1.Introduction =
32
33
34 == 1.1 What is RS485-LN RS485 to LoRaWAN Converter ==
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41 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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47 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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53 (% 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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59 (% 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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63 (% 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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70 (% 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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73
74 == 1.2 Specifications ==
75
76
77 (% style="color:#037691" %)**Hardware System:**
78
79 * STM32L072CZT6 MCU
80 * SX1276/78 Wireless Chip 
81 * Power Consumption (exclude RS485 device):
82 ** Idle: 32mA@12v
83 ** 20dB Transmit: 65mA@12v
84
85 (% style="color:#037691" %)**Interface for Model:**
86
87 * RS485
88 * Power Input 7~~ 24V DC. 
89
90 (% style="color:#037691" %)**LoRa Spec:**
91
92 * Frequency Range:
93 ** Band 1 (HF): 862 ~~ 1020 Mhz
94 ** Band 2 (LF): 410 ~~ 528 Mhz
95 * 168 dB maximum link budget.
96 * +20 dBm - 100 mW constant RF output vs.
97 * +14 dBm high efficiency PA.
98 * Programmable bit rate up to 300 kbps.
99 * High sensitivity: down to -148 dBm.
100 * Bullet-proof front end: IIP3 = -12.5 dBm.
101 * Excellent blocking immunity.
102 * Low RX current of 10.3 mA, 200 nA register retention.
103 * Fully integrated synthesizer with a resolution of 61 Hz.
104 * FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation.
105 * Built-in bit synchronizer for clock recovery.
106 * Preamble detection.
107 * 127 dB Dynamic Range RSSI.
108 * Automatic RF Sense and CAD with ultra-fast AFC.
109 * Packet engine up to 256 bytes with CRC
110
111
112 == 1.3 Features ==
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114
115 * LoRaWAN Class A & Class C protocol (default Class C)
116 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915/IN865/RU864/MA869
117 * AT Commands to change parameters
118 * Remote configure parameters via LoRa Downlink
119 * Firmware upgradable via program port
120 * Support multiply RS485 devices by flexible rules
121 * Support Modbus protocol
122 * Support Interrupt uplink (Since hardware version v1.2)
123
124
125 == 1.4 Applications ==
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127
128 * Smart Buildings & Home Automation
129 * Logistics and Supply Chain Management
130 * Smart Metering
131 * Smart Agriculture
132 * Smart Cities
133 * Smart Factory
134
135
136 == 1.5 Firmware Change log ==
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139 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
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142
143 == 1.6 Hardware Change log ==
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149 v1.2: Add External Interrupt Pin.
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153 v1.0: Release
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160
161 = 2. Power ON Device =
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165 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below
166
167 * Power Source VIN to RS485-LN VIN+
168 * Power Source GND to RS485-LN VIN-
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171 Once there is power, the RS485-LN will be on.
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174 (% 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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179
180 = 3. Operation Mode =
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182
183 == 3.1 How it works? ==
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186 (((
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188 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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194
195 == 3.2 Example to join LoRaWAN network ==
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198 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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201 (% 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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206 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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210 485A+ and 485B- of the sensor are connected to RS485A and RA485B of RS485-LN respectively.
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215 (% 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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219 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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225 (% style="color:blue" %)**Step 1**(%%): Create a device in TTN V3 with the OTAA keys from RS485-LN.
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229 Each RS485-LN is shipped with a sticker with unique device EUI:
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233 (% 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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238 User can enter this key in their LoRaWAN Server portal. Below is TTN V3 screen shot:
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244 **Add APP EUI in the application.**
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248 (% 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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250 (% 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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252 (% 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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254 (% 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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257 (% title="Click and drag to resize" %)​
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259 You can also choose to create the device manually.
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261 (% 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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265 **Add APP KEY and DEV EUI**
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267 (% 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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272 (% 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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277 (% 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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280
281 == 3.3 Configure Commands to read data ==
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284 (((
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286 (((
287 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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295 (% 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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302
303 === 3.3.1 Configure UART settings for RS485 or TTL communication ===
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306 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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309 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
310 |=(% style="width: 110px;" %)(((
311 **AT Commands**
312 )))|=(% style="width: 190px;" %)(((
313 **Description**
314 )))|=(% style="width: 190px;" %)(((
315 **Example**
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317 |(% style="width:110px" %)(((
318 AT+BAUDR
319 )))|(% style="width:190px" %)(((
320 Set the baud rate (for RS485 connection). Default Value is: 9600.
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323 AT+BAUDR=9600
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327 Options: (1200,2400,4800,14400,19200,115200)
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330 |(% style="width:110px" %)(((
331 AT+PARITY
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333 Set UART parity (for RS485 connection)
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336 AT+PARITY=0
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340 Option: 0: no parity, 1: odd parity, 2: even parity
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343 |(% style="width:110px" %)(((
344 AT+STOPBIT
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347 Set serial stopbit (for RS485 connection)
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355 AT+STOPBIT=0 for 1bit
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359 AT+STOPBIT=1 for 1.5 bit
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363 AT+STOPBIT=2 for 2 bits
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366
367
368
369 === 3.3.2 Configure sensors ===
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374 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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380 (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
381 |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
382 |AT+CFGDEV|(% style="width:110px" %)(((
383 (((
384 This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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386
387 (((
388 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
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391 (((
392 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
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394 )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
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396
397
398 === 3.3.3 Configure read commands for each sampling ===
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401 (((
402 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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404 To save the LoRaWAN network bandwidth, we might need to read data from different sensors and combine their valid value into a short payload.
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406 This section describes how to achieve above goals.
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408 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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411 (% style="color:#037691" %)**Each RS485 commands include two parts:**
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413
414 ~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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416 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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418 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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421 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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423 Below are examples for the how above AT Commands works.
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425
426 (% 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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428 (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
429 |(% style="width:496px" %)(((
430 (% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
431
432 **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
433
434 **m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command**
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436
437 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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439 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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441
442 (% 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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444 (% border="1" style="background-color:#4bacc6; color:white; width:510px" %)
445 |(% style="width:510px" %)(((
446 **AT+DATACUTx=a,b,c**
447
448 * **a: length for the return of AT+COMMAND**
449 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.**
450 * **c: define the position for valid value.  **
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452
453 **Examples:**
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455
456 * (% style="color:#037691" %)**Grab bytes**
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458 (% 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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461
462 * (% style="color:#037691" %)**Grab a section**
463
464 (% 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" %)​
465
466
467
468 * (% style="color:#037691" %)**Grab different sections**
469
470 (% 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" %)​
471
472
473
474 )))
475
476 === 3.3.4 Compose the uplink payload ===
477
478
479 (((
480 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.**
481
482
483 )))
484
485 (((
486 (% style="color:#037691" %)**Examples: AT+DATAUP=0**
487
488
489 )))
490
491 (((
492 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**A SIGNLE UPLINK**.
493 )))
494
495 (((
496 Final Payload is (% style="color:#4f81bd" %)**Battery Info+PAYVER + VALID Value from RETURN1 + Valid Value from RETURN2 + … + RETURNx**
497 )))
498
499 (((
500 Where PAYVER is defined by AT+PAYVER, below is an example screen shot.
501
502
503 )))
504
505 [[image:image-20220929111027-1.png||height="509" width="685"]](% title="Click and drag to resize" %)​
506
507
508 (% style="color:#037691" %)**Examples: AT+DATAUP=1**
509
510
511 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**.
512
513 Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
514
515
516 1. PAYVER: Defined by AT+PAYVER
517 1. PAYLOAD COUNT: Total how many uplinks of this sampling.
518 1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
519 1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
520
521 (% 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" %)​
522
523
524 So totally there will be 3 uplinks for this sampling, each uplink include 8 bytes DATA
525
526 DATA1=RETURN1 Valid Value + the first two of Valid value of RETURN10= **20 20 0a 33 90 41 02 aa**
527
528 DATA2=3^^rd^^ ~~ 10^^th^^ byte of Valid value of RETURN10= **05 81 0a 20 20 20 20 2d**
529
530 DATA3=the rest of Valid value of RETURN10= **30**
531
532
533 (% 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:**
534
535
536 ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink.
537
538 * For AU915/AS923 bands, if UplinkDwell time=0, max 11 bytes for each uplink.
539
540 * For US915 band, max 11 bytes for each uplink.
541
542 ~* For all other bands: max 51 bytes for each uplink.
543
544 (% style="color:red" %)*** When AT+DATAUP=1, the maximum number of segments is 15, and the maximum total number of bytes is 1500;**
545
546 (% 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)**
547
548
549
550
551 Below are the uplink payloads:
552
553
554 (% 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" %)​
555
556
557
558 === 3.3.5 Uplink on demand ===
559
560
561 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.
562
563 (% style="color:blue" %)**Downlink control command:**
564
565 (% style="color:#4472c4" %)** 0x08 command**(%%): Poll an uplink with current command set in RS485-LN.
566
567 (% style="color:#4472c4" %)** 0xA8 command**(%%): Send a command to RS485-LN and uplink the output from sensors.
568
569
570
571 === 3.3.6 Uplink on Interrupt ===
572
573
574 RS485-LN support external Interrupt uplink since hardware v1.2 release.
575
576
577 (% 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" %)​
578
579 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.
580
581
582
583 == 3.4 Uplink Payload ==
584
585
586 (% aria-label="image-20220606110929-1.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220606110929-1.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"]]
587
588 (% title="Click and drag to resize" %)​
589
590 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors.
591
592
593
594 == 3.5 Configure RS485-LN via AT or Downlink ==
595
596
597 (((
598 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands
599 )))
600
601 (((
602 There are two kinds of Commands:
603 )))
604
605 * (((
606 (% 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]]
607 )))
608
609 * (((
610 (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN.  User can see these commands below:
611 )))
612
613 (((
614
615 )))
616
617
618
619 === 3.5.1 Common Commands ===
620
621
622 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]]
623
624
625
626 === 3.5.2 Downlink Response(Since firmware v1.4) ===
627
628
629 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.
630
631
632 (% 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"]]
633
634 (% title="Click and drag to resize" %)​
635
636 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)
637
638
639
640 === 3.5.3 Sensor related commands ===
641
642
643
644
645 ==== (% style="color:blue" %)**RS485 Debug Command**(%%) ====
646
647
648 (((
649 This command is used to configure the RS485 devices; they won't be used during sampling.
650 )))
651
652 (((
653 * (% style="color:#037691" %)**AT Command**
654
655 (((
656 (% 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
657 )))
658 )))
659
660 (((
661
662 )))
663
664 * (((
665 (% style="color:#037691" %)**Downlink Payload**
666 )))
667
668 (((
669 Format: (% style="color:#4472c4" %)** A8 MM NN XX XX XX XX YY**
670 )))
671
672 (((
673 Where:
674 )))
675
676 * (((
677 MM: 1: add CRC-16/MODBUS ; 0: no CRC
678 )))
679 * (((
680 NN: The length of RS485 command
681 )))
682 * (((
683 XX XX XX XX: RS485 command total NN bytes
684 )))
685 * (((
686 (((
687 YY: How many bytes will be uplink from the return of this RS485 command,
688 )))
689
690 * (((
691 if YY=0, RS485-LN will execute the downlink command without uplink;
692 )))
693 * (((
694 if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200
695 )))
696 * (((
697 if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200.
698 )))
699 )))
700
701 (((
702
703
704 (% style="color:blue" %)**Example 1:**  (%%) ~-~-> Configure without ask for uplink (YY=0)
705 )))
706
707 (((
708 To connect a Modbus Alarm with below commands.
709 )))
710
711 * (((
712 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.
713 )))
714
715 * (((
716 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.
717 )))
718
719 (((
720
721
722 So if user want to use downlink command to control to RS485 Alarm, he can use:
723 )))
724
725 (((
726 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
727 )))
728
729 (((
730 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
731 )))
732
733 (((
734 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.
735 )))
736
737 (((
738
739 )))
740
741 (((
742 (% style="color:blue" %)**Example 2:**  (%%) ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**)
743 )))
744
745 (((
746 User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY**
747 )))
748
749 (((
750
751 )))
752
753 (((
754 (((
755 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**
756 )))
757
758
759 )))
760
761 (((
762 (% 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" %)​
763 )))
764
765
766
767
768 ==== (% style="color:blue" %)**Set Payload version**(%%) ====
769
770
771 (((
772 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.
773 )))
774
775 (((
776 * (% style="color:#037691" %)**AT Command:**
777
778 (% style="color:#4472c4" %)** AT+PAYVER:    ** (%%) Set PAYVER field = 1
779
780
781 )))
782
783 * (((
784 (% style="color:#037691" %)**Downlink Payload:**
785 )))
786
787 (((
788 (% style="color:#4472c4" %)** 0xAE 01** (%%) ~-~->  Set PAYVER field =  0x01
789 )))
790
791 (((
792 (% style="color:#4472c4" %)** 0xAE 0F**   (%%) ~-~->  Set PAYVER field =  0x0F
793 )))
794
795
796 1 )  Add the interrupt flag at the highest bit of the Payver byte, that is, Byte7 of the first byte. (Since v1.4.0)
797
798 [[image:image-20220824145428-2.png||height="168" width="1300"]]
799
800
801 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.
802
803
804 [[image:image-20220824145428-3.png||height="308" width="1200"]]
805
806
807
808
809 ==== (% style="color:blue" %)**Set RS485 Sampling Commands**(%%) ====
810
811
812 (((
813 AT+COMMANDx or AT+DATACUTx
814 )))
815
816 (((
817 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"]].
818 )))
819
820 (((
821
822 )))
823
824 * (((
825 (% style="color:#037691" %)**AT Command:**
826 )))
827
828 (% style="color:#4472c4" %)** AT+COMMANDx:    ** (%%) Configure RS485 read command to sensor.
829
830 (% style="color:#4472c4" %)** AT+DATACUTx:        **(%%) Configure how to handle return from RS485 devices.
831
832
833 * (((
834 (% style="color:#037691" %)**Downlink Payload:**
835 )))
836
837 (((
838 (% style="color:#4472c4" %)** 0xAF**(%%) downlink command can be used to set AT+COMMANDx or AT+DATACUTx.
839
840
841 )))
842
843 (((
844 (% style="color:red" %)**Note : if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**
845
846
847 )))
848
849 (((
850 Format: (% style="color:#4472c4" %)** AF MM NN LL XX XX XX XX YY**
851 )))
852
853 (((
854 Where:
855 )))
856
857 * (((
858 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F,
859 )))
860 * (((
861 NN:  0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value.
862 )))
863 * (((
864 LL:  The length of AT+COMMAND or AT+DATACUT command
865 )))
866 * (((
867 XX XX XX XX: AT+COMMAND or AT+DATACUT command
868 )))
869 * (((
870 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.
871 )))
872
873 (((
874
875
876 **Example:**
877 )))
878
879 (((
880 (% 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
881 )))
882
883 (((
884 (% 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**
885 )))
886
887 (((
888 (% 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**
889 )))
890
891
892
893
894 ==== (% style="color:blue" %)**Fast command to handle MODBUS device**(%%) ====
895
896
897 (((
898 (% 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]].
899 )))
900
901 (((
902 This command is valid since v1.3 firmware version
903 )))
904
905 (((
906 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.
907 )))
908
909 (((
910
911 )))
912
913 (((
914 **Example:**
915 )))
916
917 * (((
918 AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2  are not configure (0,0,0). So RS485-LN.
919 )))
920 * (((
921 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.
922 )))
923 * (((
924 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.
925
926
927 )))
928
929 (% aria-label="image-20220602165351-6.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602165351-6.png||data-widget="image"]](% title="Click and drag to resize" %)​
930
931 (% 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" %)​
932
933
934
935
936 ==== (% style="color:blue" %)**RS485 command timeout**(%%) ====
937
938
939 (((
940 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.
941 )))
942
943 (((
944 Default value: 0, range:  0 ~~ 65 seconds
945 )))
946
947 (((
948 * (% style="color:#037691" %)** AT Command:**
949
950 (% style="color:#4472c4" %)** AT+CMDDLaa=hex(bb cc)*1000**
951 )))
952
953 (((
954
955
956 **Example:**
957 )))
958
959 (((
960 (% style="color:#4472c4" %)** AT+CMDDL1=1000** (%%)to send the open time to 1000ms
961 )))
962
963 (((
964
965 )))
966
967 * (((
968 (% style="color:#037691" %)** Downlink Payload:**
969 )))
970
971 (((
972 (% style="color:#4472c4" %)** 0x AA aa bb cc**(%%) Same as: AT+CMDDLaa=hex(bb cc)*1000
973 )))
974
975 (((
976
977
978 **Example:**
979 )))
980
981 (((
982 **0xAA 01 00 01**  ~-~-> Same as  **AT+CMDDL1=1000 ms**
983 )))
984
985
986
987
988 ==== (% style="color:blue" %)**Uplink payload mode**(%%) ====
989
990
991 (((
992 Define to use one uplink or multiple uplinks for the sampling.
993 )))
994
995 (((
996 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
997
998
999 )))
1000
1001 (((
1002 * (% style="color:#037691" %)** AT Command:**
1003
1004 (% style="color:#4472c4" %)** AT+DATAUP=0**
1005
1006 (% style="color:#4472c4" %)** AT+DATAUP=1**
1007
1008
1009 )))
1010
1011 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1012
1013 Each uplink is sent to the server at 20-second intervals when segmented.
1014
1015
1016 * (((
1017 (% style="color:#037691" %)** Downlink Payload:**
1018 )))
1019
1020 (% style="color:#4472c4" %)** 0xAD 00** (%%) **~-~->** Same as AT+DATAUP=0
1021
1022 (% 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.
1023
1024
1025 * (((
1026 (% style="color:#037691" %)** AT Command:**
1027 )))
1028
1029 (% style="color:#4472c4" %)** AT+DATAUP=1,Timeout**
1030
1031
1032 * (((
1033 (% style="color:#037691" %)** Downlink Payload:**
1034 )))
1035
1036 (% style="color:#4472c4" %)** 0xAD 01 00 00 14** (%%) **~-~->** Same as AT+DATAUP=1，20000  ~/~/  (00 00 14 is 20 seconds)
1037
1038 Each uplink is sent to the server at 20-second intervals when segmented.
1039
1040
1041
1042
1043 ==== (% style="color:blue" %)**Manually trigger an Uplink**(%%) ====
1044
1045
1046 (((
1047 Ask device to send an uplink immediately.
1048 )))
1049
1050 * (((
1051 (% style="color:#037691" %)** AT Command:**
1052 )))
1053
1054 (((
1055 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
1056 )))
1057
1058 (((
1059
1060 )))
1061
1062 * (((
1063 (% style="color:#037691" %)** Downlink Payload:**
1064 )))
1065
1066 (((
1067 (% style="color:#4472c4" %)** 0x08 FF**(%%), RS485-LN will immediately send an uplink.
1068 )))
1069
1070
1071
1072
1073 ==== (% style="color:blue" %)**Clear RS485 Command**(%%) ====
1074
1075
1076 (((
1077 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
1078
1079
1080 )))
1081
1082 * (((
1083 (% style="color:#037691" %)** AT Command:**
1084 )))
1085
1086 (((
1087 (% style="color:#4472c4" %)** AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase
1088 )))
1089
1090 (((
1091
1092
1093 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
1094 )))
1095
1096 (((
1097 Example screen shot after clear all RS485 commands. 
1098 )))
1099
1100 (((
1101
1102 )))
1103
1104 (((
1105 The uplink screen shot is:
1106 )))
1107
1108 (% 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" %)​
1109
1110
1111 * (((
1112 (% style="color:#037691" %)** Downlink Payload:**
1113 )))
1114
1115 (((
1116 (% style="color:#4472c4" %)** 0x09 aa bb** (%%) same as AT+CMDEAR=aa,bb
1117 )))
1118
1119
1120
1121
1122 ==== (% style="color:blue" %)**Set Serial Communication Parameters**(%%) ====
1123
1124
1125 (((
1126 Set the Rs485 serial communication parameters:
1127
1128
1129 )))
1130
1131 * (((
1132 (% style="color:#037691" %)** AT Command:**
1133
1134
1135
1136 )))
1137
1138 (((
1139 * Set Baud Rate
1140 )))
1141
1142 (% 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
1143
1144
1145 (((
1146 * Set UART Parity
1147 )))
1148
1149 (% style="color:#4472c4" %)** AT+PARITY=0** (%%) ~/~/  Option: 0: no parity, 1: odd parity, 2: even parity
1150
1151
1152 (((
1153 * Set STOPBIT
1154 )))
1155
1156 (% style="color:#4472c4" %)** AT+STOPBIT=0** (%%) ~/~/  Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1157
1158
1159
1160 * (((
1161 (% style="color:#037691" %)** Downlink Payload:**
1162 )))
1163
1164 (((
1165 (% style="color:#4472c4" %)** A7 01 aa bb**:   (%%) Same  AT+BAUDR=hex(aa bb)*100
1166 )))
1167
1168 (((
1169
1170
1171 **Example:**
1172 )))
1173
1174 * (((
1175 A7 01 00 60  same as AT+BAUDR=9600
1176 )))
1177 * (((
1178 A7 01 04 80  same as AT+BAUDR=115200
1179 )))
1180
1181 (((
1182 * A7 02 aa:  Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1183 )))
1184
1185 (((
1186 * A7 03 aa:  Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1187 )))
1188
1189
1190
1191
1192
1193 ==== (% style="color:blue" %)**Encrypted payload**(%%) ====
1194
1195 (((
1196
1197 )))
1198
1199 * (((
1200 (% style="color:#037691" %)** AT Command:**
1201 )))
1202
1203 (% style="color:#4472c4" %)** AT+DECRYPT=1  ** (%%) ~/~/ The payload is uploaded without encryption
1204
1205 (% style="color:#4472c4" %)** AT+DECRYPT=0  ** (%%) ~/~/ Encrypt when uploading payload (default)
1206
1207
1208
1209
1210 ==== (% style="color:blue" %)**Get sensor value**(%%) ====
1211
1212
1213 * (((
1214 (% style="color:#037691" %)** AT Command:**
1215 )))
1216
1217 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=0  **(%%) ~/~/ The serial port gets the reading of the current sensor
1218
1219 (% style="color:#4472c4" %)** AT+GETSENSORVALUE=1  **(%%) ~/~/ The serial port gets the current sensor reading and uploads it.
1220
1221
1222
1223
1224 ==== (% style="color:blue" %)**Resets the downlink packet count**(%%) ====
1225
1226
1227 * (((
1228 (% style="color:#037691" %)** AT Command:**
1229 )))
1230
1231 (% 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)
1232
1233 (% 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.
1234
1235
1236
1237
1238 ==== (% style="color:blue" %)**When the limit bytes are exceeded, upload in batches**(%%) ====
1239
1240
1241 * (((
1242 (% style="color:#037691" %)** AT Command:**
1243 )))
1244
1245 (% 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)
1246
1247 (% 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.
1248
1249
1250 * (((
1251 (% style="color:#037691" %)** Downlink Payload:**
1252 )))
1253
1254 (% style="color:#4472c4" %)** 0x21 00 01 ** (%%) ~/~/ Set  the DISMACANS=1
1255
1256
1257
1258
1259 ==== (% style="color:blue" %)** Copy downlink to uplink **(%%) ====
1260
1261
1262 * (((
1263 (% style="color:#037691" %)** AT Command:**
1264 )))
1265
1266 (% 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.
1267
1268
1269 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.
1270
1271
1272 [[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"]]
1273
1274
1275
1276 For example, sending 11 22 33 44 55 66 77 will return invalid configuration 00 11 22 33 44 55 66 77.
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-20220823173833-7.png?width=1124&height=149&rev=1.1||alt="image-20220823173833-7.png"]]
1280
1281
1282 For example, if 01 00 02 58 is issued, a valid configuration of 01 01 00 02 58 will be returned.
1283
1284
1285
1286
1287 ==== (% style="color:blue" %)**Query version number and frequency band 、TDC**(%%) ====
1288
1289
1290 (((
1291 * (% style="color:#037691" %)**Downlink Payload:**
1292
1293 (% style="color:#4472c4" %)** 26 01  ** (%%) ~/~/  Downlink 26 01 can query device upload frequency, frequency band, software version number, TDC time.
1294 )))
1295
1296
1297 Example：
1298
1299
1300 [[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"]]
1301
1302
1303
1304
1305 ==== (% style="color:blue" %)** Monitor RS485 communication of other devices**(%%) ====
1306
1307
1308 * (((
1309 (% style="color:#037691" %)** AT Command:**
1310 )))
1311
1312 (% 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.
1313
1314 (% 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.
1315
1316 (% style="color:#4472c4" %)**AT+RXMODE=0,0  ** (%%) ~/~/  Disable this mode (default)
1317
1318
1319 * (((
1320 (% style="color:#037691" %)**Downlink Payload:**
1321 )))
1322
1323 (% style="color:#4472c4" %)** A6 aa bb bb               ** (%%) ~/~/same as AT+RXMODE=aa,bb
1324
1325 [[image:image-20220824144240-1.png]]
1326
1327
1328
1329 == 3.6 Listening mode for RS485 network ==
1330
1331
1332 (((
1333 This feature support since firmware v1.4
1334 )))
1335
1336 (((
1337 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.
1338
1339
1340 )))
1341
1342 (% 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"]]
1343
1344 (% title="Click and drag to resize" %)​
1345
1346 (((
1347 To enable the listening mode, use can run the command (% style="color:#4472c4" %)** AT+RXMODE**.
1348 )))
1349
1350 (((
1351
1352 )))
1353
1354 (% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1355 |=(% style="width: 100px;" %)(((
1356 **Command example**
1357 )))|=(% style="width: 400px;" %)(((
1358 **Function**
1359 )))
1360 |(% style="width:100px" %)(((
1361 AT+RXMODE=1,10
1362 )))|(% style="width:400px" %)(((
1363 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.
1364 )))
1365 |(% style="width:100px" %)(((
1366 AT+RXMODE=2,500
1367 )))|(% style="width:400px" %)(((
1368 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
1369 )))
1370 |(% style="width:100px" %)(((
1371 AT+RXMODE=0,0
1372 )))|(% style="width:400px" %)(((
1373 Disable listening mode. This is the default settings.
1374 )))
1375 |(% style="width:100px" %)(((
1376
1377 )))|(% style="width:400px" %)(((
1378 A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1379 )))
1380
1381 (((
1382
1383
1384 (% style="color:#037691" %)**Downlink Command:**
1385 )))
1386
1387 (((
1388 (% style="color:#4472c4" %)** 0xA6 aa bb cc **(%%) same as AT+RXMODE=aa,(bb<<8 | cc)
1389 )))
1390
1391 (((
1392
1393 )))
1394
1395 (((
1396 **Example**:
1397 )))
1398
1399 (((
1400 The RS485-LN is set to AT+RXMODE=2,1000
1401 )))
1402
1403 (((
1404 There is a two Modbus commands in the RS485 network as below:
1405 )))
1406
1407 (((
1408 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1409 )))
1410
1411 (((
1412 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1413 )))
1414
1415 (((
1416 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
1417 )))
1418
1419 (((
1420 (% 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" %)​
1421 )))
1422
1423 (((
1424
1425 )))
1426
1427 (((
1428 (((
1429 (% 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.**
1430 )))
1431 )))
1432
1433
1434
1435 == 3.7 Buttons ==
1436
1437
1438 (% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1439 |=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1440 |(% 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**
1441 |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1442 |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1443
1444
1445 == 3.8 LEDs ==
1446
1447
1448 (% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1449 |=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1450 |**PWR**|Always on if there is power
1451 |**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.
1452
1453
1454 = 4. Case Study =
1455
1456
1457 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]]
1458
1459
1460
1461 = 5. Use AT Command =
1462
1463
1464 == 5.1 Access AT Command ==
1465
1466
1467 (((
1468 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.
1469
1470
1471 )))
1472
1473 (% 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" %)​
1474
1475
1476
1477 (((
1478 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:
1479
1480
1481 )))
1482
1483 (% 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" %)​
1484
1485
1486 (((
1487 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/]]
1488 )))
1489
1490
1491
1492 == 5.2 Common AT Command Sequence ==
1493
1494
1495 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
1496
1497
1498 If device has not joined network yet:
1499
1500 * (% style="color:#037691" %)**AT+FDR**
1501 * (% style="color:#037691" %)**AT+NJM=0**
1502 * (% style="color:#037691" %)**ATZ**
1503
1504 (((
1505
1506
1507 If device already joined network:
1508
1509 * (% style="color:#037691" %)**AT+NJM=0**
1510 * (% style="color:#037691" %)**ATZ**
1511
1512
1513 )))
1514
1515
1516
1517 === 5.5.2 Single-channel ABP mode (Use with LG01/LG02) ===
1518
1519
1520 (% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve
1521
1522 (% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%) Set to ABP mode
1523
1524 (% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%) Set the Adaptive Data Rate Off
1525
1526 (% style="background-color:#dcdcdc" %)**AT+DR=5**   (%%) Set Data Rate
1527
1528 (% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds
1529
1530 (% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%)  Set transmit frequency to 868.4Mhz
1531
1532 (% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server)
1533
1534 (% style="background-color:#dcdcdc" %)**AT+RX2DR=5**  (%%) Set RX2DR to match the downlink DR from server. see below
1535
1536 (% 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.
1537
1538 (% style="background-color:#dcdcdc" %)**ATZ**       (%%) Reset MCU
1539
1540
1541 (% style="color:red" %)**Note:**
1542
1543 (((
1544 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1545 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1546 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.
1547 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
1548
1549
1550 )))
1551
1552 (% 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" %)​
1553
1554
1555
1556 = 6. FAQ =
1557
1558
1559 == 6.1 How to upgrade the image? ==
1560
1561
1562 (((
1563 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1564 )))
1565
1566 * (((
1567 Support new features
1568 )))
1569 * (((
1570 For bug fix
1571 )))
1572 * (((
1573 Change LoRaWAN bands.
1574 )))
1575
1576 (((
1577 Below shows the hardware connection for how to upload an image to RS485-LN:
1578 )))
1579
1580 (% 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"]]
1581
1582 (% title="Click and drag to resize" %)​
1583
1584 (((
1585 (% 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]].
1586
1587
1588 )))
1589
1590 (((
1591 (% 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]].
1592
1593
1594 )))
1595
1596 (((
1597 (% style="color:blue" %)**Step3**(%%)**: **Open flashloader; choose the correct COM port to update.
1598
1599
1600 )))
1601
1602 (((
1603 (((
1604 (((
1605 (% 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.
1606 )))
1607 )))
1608 )))
1609
1610
1611 (% 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" %)​
1612
1613
1614 (% 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" %)​
1615
1616
1617 (% 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" %)​
1618
1619
1620 (% 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:**
1621
1622 (% 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" %)​
1623
1624
1625
1626 == 6.2 How to change the LoRa Frequency Bands/Region? ==
1627
1628
1629 User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download.
1630
1631
1632
1633 == 6.3 How many RS485-Slave can RS485-LN connects? ==
1634
1635
1636 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"]].
1637
1638
1639
1640 == 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? ==
1641
1642
1643 When user need to use with ChirpStack or TTI. Please set AT+RPL=4.
1644
1645 Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]]
1646
1647
1648
1649 == 6.5 Can i use point to point communication for RS485-LN? ==
1650
1651
1652 Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1653
1654
1655
1656 == 6.6 How to Use RS485-LN  to connect to RS232 devices? ==
1657
1658
1659 [[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/]]
1660
1661
1662
1663 = 7. Trouble Shooting =
1664
1665
1666 == 7.1 Downlink doesn't work, how to solve it? ==
1667
1668
1669 Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]]
1670
1671
1672
1673 == 7.2 Why I can't join TTN V3 in US915 /AU915 bands? ==
1674
1675
1676 It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]]
1677
1678
1679
1680 = 8. Order Info =
1681
1682
1683 (% style="color:blue" %)**Part Number: RS485-LN-XXX**
1684
1685 (% style="color:blue" %)**XXX:**
1686
1687 * (% style="color:red" %)**EU433**(%%):  frequency bands EU433
1688 * (% style="color:red" %)**EU868**(%%):  frequency bands EU868
1689 * (% style="color:red" %)**KR920**(%%):  frequency bands KR920
1690 * (% style="color:red" %)**CN470**(%%):  frequency bands CN470
1691 * (% style="color:red" %)**AS923**(%%):  frequency bands AS923
1692 * (% style="color:red" %)**AU915**(%%):  frequency bands AU915
1693 * (% style="color:red" %)**US915**(%%):  frequency bands US915
1694 * (% style="color:red" %)**IN865**(%%):  frequency bands IN865
1695 * (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1696 * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1697
1698
1699 = 9.Packing Info =
1700
1701
1702 **Package Includes**:
1703
1704 * RS485-LN x 1
1705 * Stick Antenna for LoRa RF part x 1
1706 * Program cable x 1
1707
1708 **Dimension and weight**:
1709
1710 * Device Size: 13.5 x 7 x 3 cm
1711 * Device Weight: 105g
1712 * Package Size / pcs : 14.5 x 8 x 5 cm
1713 * Weight / pcs : 170g
1714
1715
1716 = 10. FCC Caution for RS485LN-US915 =
1717
1718
1719 (((
1720 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
1721 )))
1722
1723 (((
1724 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.
1725 )))
1726
1727 (((
1728
1729 )))
1730
1731 (((
1732 (% style="color:red" %)**IMPORTANT NOTE:**
1733 )))
1734
1735 (((
1736 (% 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:
1737 )))
1738
1739 (((
1740 —Reorient or relocate the receiving antenna.
1741 )))
1742
1743 (((
1744 —Increase the separation between the equipment and receiver.
1745 )))
1746
1747 (((
1748 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
1749 )))
1750
1751 (((
1752 —Consult the dealer or an experienced radio/TV technician for help.
1753 )))
1754
1755 (((
1756
1757 )))
1758
1759 (((
1760 (% style="color:red" %)**FCC Radiation Exposure Statement:**
1761 )))
1762
1763 (((
1764 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.
1765 )))
1766
1767
1768
1769 = 11. Support =
1770
1771
1772 * (((
1773 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.
1774 )))
1775 * (((
1776 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]].
1777
1778
1779
1780 )))