Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.17 >
edited by Xiaoling
on 2022/06/06 11:23
To version < 59.9 >
edited by Xiaoling
on 2022/06/06 14:21
>
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -92,6 +92,8 @@
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 93  * Packet engine up to 256 bytes with CRC
94 94  
95 +
96 +
95 95  == 1.3 Features ==
96 96  
97 97  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -104,6 +104,7 @@
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 106  
109 +
107 107  == 1.4 Applications ==
108 108  
109 109  * Smart Buildings & Home Automation
... ... @@ -114,6 +114,7 @@
114 114  * Smart Factory
115 115  
116 116  
120 +
117 117  == 1.5 Firmware Change log ==
118 118  
119 119  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -235,11 +235,15 @@
235 235  
236 236  (((
237 237  (((
242 +(((
238 238  There are plenty of RS485 devices in the market and each device has different command to read the valid data. To support these devices in flexible, RS485-LN supports flexible command set. User can use [[AT Commands>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices.
239 239  )))
245 +)))
240 240  
241 241  (((
248 +(((
242 242  (% 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
250 +)))
243 243  
244 244  
245 245  )))
... ... @@ -320,11 +320,17 @@
320 320  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
321 321  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
322 322  |AT+CFGDEV|(% style="width:110px" %)(((
331 +(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
333 +)))
324 324  
335 +(((
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
337 +)))
326 326  
339 +(((
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
341 +)))
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 330  
... ... @@ -997,9 +997,13 @@
997 997  [[image:1654160691922-496.png]]
998 998  
999 999  
1000 -* **Downlink Payload:**
1014 +* (((
1015 +**Downlink Payload:**
1016 +)))
1001 1001  
1018 +(((
1002 1002  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1020 +)))
1003 1003  
1004 1004  
1005 1005  
... ... @@ -1006,102 +1006,195 @@
1006 1006  
1007 1007  ==== **Set Serial Communication Parameters** ====
1008 1008  
1027 +(((
1009 1009  Set the Rs485 serial communication parameters:
1029 +)))
1010 1010  
1011 -* **AT Command:**
1031 +* (((
1032 +**AT Command:**
1033 +)))
1012 1012  
1035 +(((
1013 1013  Set Baud Rate:
1037 +)))
1014 1014  
1015 1015  (% class="box infomessage" %)
1016 1016  (((
1041 +(((
1017 1017  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1018 1018  )))
1044 +)))
1019 1019  
1046 +(((
1020 1020  Set UART Parity
1048 +)))
1021 1021  
1022 1022  (% class="box infomessage" %)
1023 1023  (((
1052 +(((
1024 1024  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1025 1025  )))
1055 +)))
1026 1026  
1057 +(((
1027 1027  Set STOPBIT
1059 +)))
1028 1028  
1029 1029  (% class="box infomessage" %)
1030 1030  (((
1063 +(((
1031 1031  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1032 1032  )))
1066 +)))
1033 1033  
1068 +(((
1069 +
1070 +)))
1034 1034  
1035 -* **Downlink Payload:**
1072 +* (((
1073 +**Downlink Payload:**
1074 +)))
1036 1036  
1076 +(((
1037 1037  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1078 +)))
1038 1038  
1080 +(((
1039 1039  **Example:**
1082 +)))
1040 1040  
1041 -* A7 01 00 60   same as AT+BAUDR=9600
1042 -* A7 01 04 80  same as AT+BAUDR=115200
1084 +* (((
1085 +A7 01 00 60   same as AT+BAUDR=9600
1086 +)))
1087 +* (((
1088 +A7 01 04 80  same as AT+BAUDR=115200
1089 +)))
1043 1043  
1091 +(((
1044 1044  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1093 +)))
1045 1045  
1095 +(((
1046 1046  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1097 +)))
1047 1047  
1048 1048  
1100 +
1101 +
1049 1049  == 3.6 Listening mode for RS485 network ==
1050 1050  
1104 +(((
1051 1051  This feature support since firmware v1.4
1106 +)))
1052 1052  
1108 +(((
1053 1053  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.
1110 +)))
1054 1054  
1055 1055  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1056 1056  
1114 +(((
1057 1057  To enable the listening mode, use can run the command AT+RXMODE.
1116 +)))
1058 1058  
1118 +(((
1119 +
1120 +)))
1059 1059  
1060 -(% border="1" style="background-color:#ffffcc; width:500px" %)
1061 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1062 -|(% style="width:161px" %)AT+RXMODE=1,10 |(% style="width:337px" %)Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks.
1063 -|(% style="width:161px" %)AT+RXMODE=2,500|(% style="width:337px" %)Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms
1064 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1065 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1122 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1123 +|=(% style="width: 100px;" %)(((
1124 +**Command example**
1125 +)))|=(% style="width: 400px;" %)(((
1126 +**Function**
1127 +)))
1128 +|(% style="width:100px" %)(((
1129 +AT+RXMODE=1,10
1130 +)))|(% style="width:400px" %)(((
1131 +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.
1132 +)))
1133 +|(% style="width:100px" %)(((
1134 +AT+RXMODE=2,500
1135 +)))|(% style="width:400px" %)(((
1136 +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
1137 +)))
1138 +|(% style="width:100px" %)(((
1139 +AT+RXMODE=0,0
1140 +)))|(% style="width:400px" %)(((
1141 +Disable listening mode. This is the default settings.
1142 +)))
1143 +|(% style="width:100px" %)(((
1144 +
1145 +)))|(% style="width:400px" %)(((
1146 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1147 +)))
1066 1066  
1149 +(((
1067 1067  **Downlink Command:**
1151 +)))
1068 1068  
1153 +(((
1069 1069  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1155 +)))
1070 1070  
1157 +(((
1158 +
1159 +)))
1071 1071  
1161 +(((
1072 1072  **Example**:
1163 +)))
1073 1073  
1165 +(((
1074 1074  The RS485-LN is set to AT+RXMODE=2,1000
1167 +)))
1075 1075  
1169 +(((
1076 1076  There is a two Modbus commands in the RS485 network as below:
1171 +)))
1077 1077  
1173 +(((
1078 1078  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1175 +)))
1079 1079  
1177 +(((
1080 1080  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1179 +)))
1081 1081  
1181 +(((
1082 1082  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
1183 +)))
1083 1083  
1185 +(((
1084 1084  [[image:image-20220602171200-9.png]]
1187 +)))
1085 1085  
1189 +(((
1190 +
1191 +)))
1086 1086  
1193 +(((
1194 +(((
1087 1087  (% 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.
1196 +)))
1197 +)))
1088 1088  
1089 1089  
1090 1090  == 3.7 Buttons ==
1091 1091  
1092 1092  
1093 -(% border="1" style="background-color:#f7faff; width:500px" %)
1094 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1095 -|**ACT**|(% style="width:1420px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**
1096 -|**RST**|(% style="width:1420px" %)Reboot RS485
1097 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1203 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1204 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1205 +|(% style="width:50px" %)**ACT**|(% style="width:350px" %)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**
1206 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1207 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1098 1098  
1099 1099  == 3.8 LEDs ==
1100 1100  
1101 -(% border="1" style="background-color:#f7faff; width:500px" %)
1102 -|=**LEDs**|=**Feature**
1211 +
1212 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1213 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1103 1103  |**PWR**|Always on if there is power
1104 -|**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.
1215 +|**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.
1105 1105  
1106 1106  = 4. Case Study =
1107 1107  
... ... @@ -1112,19 +1112,26 @@
1112 1112  
1113 1113  == 5.1 Access AT Command ==
1114 1114  
1226 +(((
1115 1115  RS485-BL supports AT Command set. User can use a USB to TTL adapter plus the 3.5mm Program Cable to connect to RS485-BL to use AT command, as below.
1228 +)))
1116 1116  
1117 1117  [[image:1654162355560-817.png]]
1118 1118  
1119 1119  
1233 +(((
1120 1120  In PC, User needs to set (% style="color:blue" %)**serial tool**(%%)(such as [[putty>>url:https://www.chiark.greenend.org.uk/~~sgtatham/putty/latest.html]], SecureCRT) baud rate to (% style="color:green" %)**9600**(%%) to access to access serial console of RS485-BL. The default password is 123456. Below is the output for reference:
1235 +)))
1121 1121  
1122 1122  [[image:1654162368066-342.png]]
1123 1123  
1124 1124  
1240 +(((
1125 1125  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/]]
1242 +)))
1126 1126  
1127 1127  
1245 +
1128 1128  == 5.2 Common AT Command Sequence ==
1129 1129  
1130 1130  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1147,7 +1147,9 @@
1147 1147  )))
1148 1148  
1149 1149  
1268 +(((
1150 1150  If device already joined network:
1270 +)))
1151 1151  
1152 1152  (% class="box infomessage" %)
1153 1153  (((
... ... @@ -1186,10 +1186,12 @@
1186 1186  
1187 1187  (% style="color:red" %)**Note:**
1188 1188  
1309 +(((
1189 1189  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1190 1190  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1191 1191  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.
1192 1192  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
1314 +)))
1193 1193  
1194 1194  [[image:1654162478620-421.png]]
1195 1195  
... ... @@ -1198,25 +1198,45 @@
1198 1198  
1199 1199  == 6.1 How to upgrade the image? ==
1200 1200  
1323 +(((
1201 1201  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1325 +)))
1202 1202  
1203 -* Support new features
1204 -* For bug fix
1205 -* Change LoRaWAN bands.
1327 +* (((
1328 +Support new features
1329 +)))
1330 +* (((
1331 +For bug fix
1332 +)))
1333 +* (((
1334 +Change LoRaWAN bands.
1335 +)))
1206 1206  
1337 +(((
1207 1207  Below shows the hardware connection for how to upload an image to RS485-LN:
1339 +)))
1208 1208  
1209 1209  [[image:1654162535040-878.png]]
1210 1210  
1343 +(((
1211 1211  **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]].
1345 +)))
1212 1212  
1347 +(((
1213 1213  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1349 +)))
1214 1214  
1351 +(((
1215 1215  **Step3: **Open flashloader; choose the correct COM port to update.
1353 +)))
1216 1216  
1217 1217  (((
1356 +(((
1357 +(((
1218 1218  (% 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.
1219 1219  )))
1360 +)))
1361 +)))
1220 1220  
1221 1221  
1222 1222  [[image:image-20220602175818-12.png]]
... ... @@ -1279,7 +1279,6 @@
1279 1279  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1280 1280  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1281 1281  
1282 -
1283 1283  = 9.Packing Info =
1284 1284  
1285 1285  
... ... @@ -1296,7 +1296,6 @@
1296 1296  * Package Size / pcs : 14.5 x 8 x 5 cm
1297 1297  * Weight / pcs : 170g
1298 1298  
1299 -
1300 1300  = 10. FCC Caution for RS485LN-US915 =
1301 1301  
1302 1302  (((

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