Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 59.4 >
edited by Xiaoling
on 2022/06/06 14:21
To version < 58.15 >
edited by Xiaoling
on 2022/06/06 11:23
>
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -92,8 +92,6 @@
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 -
97 97  == 1.3 Features ==
98 98  
99 99  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -106,7 +106,6 @@
106 106  * Support Interrupt uplink (Since hardware version v1.2)
107 107  
108 108  
109 -
110 110  == 1.4 Applications ==
111 111  
112 112  * Smart Buildings & Home Automation
... ... @@ -117,7 +117,6 @@
117 117  * Smart Factory
118 118  
119 119  
120 -
121 121  == 1.5 Firmware Change log ==
122 122  
123 123  [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]]
... ... @@ -239,15 +239,11 @@
239 239  
240 240  (((
241 241  (((
242 -(((
243 243  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.
244 244  )))
245 -)))
246 246  
247 247  (((
248 -(((
249 249  (% 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 -)))
251 251  
252 252  
253 253  )))
... ... @@ -315,6 +315,8 @@
315 315  )))
316 316  )))
317 317  
310 +
311 +
318 318  === 3.3.2 Configure sensors ===
319 319  
320 320  (((
... ... @@ -326,19 +326,15 @@
326 326  (% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
327 327  |=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
328 328  |AT+CFGDEV|(% style="width:110px" %)(((
329 -(((
330 330  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
331 -)))
332 332  
333 -(((
334 334  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
335 -)))
336 336  
337 -(((
338 338  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
339 -)))
340 340  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
341 341  
330 +
331 +
342 342  === 3.3.3 Configure read commands for each sampling ===
343 343  
344 344  (((
... ... @@ -947,29 +947,16 @@
947 947  
948 948  ==== **Manually trigger an Uplink** ====
949 949  
950 -(((
951 951  Ask device to send an uplink immediately.
952 -)))
953 953  
954 -* (((
955 -**AT Command:**
956 -)))
942 +* **AT Command:**
957 957  
958 -(((
959 959  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
960 -)))
961 961  
962 -(((
963 -
964 -)))
965 965  
966 -* (((
967 -**Downlink Payload:**
968 -)))
947 +* **Downlink Payload:**
969 969  
970 -(((
971 971  **0x08 FF**, RS485-LN will immediately send an uplink.
972 -)))
973 973  
974 974  
975 975  
... ... @@ -976,44 +976,25 @@
976 976  
977 977  ==== **Clear RS485 Command** ====
978 978  
979 -(((
980 980  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
981 -)))
982 982  
983 -* (((
984 -**AT Command:**
985 -)))
958 +* **AT Command:**
986 986  
987 -(((
988 988  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
989 -)))
990 990  
991 -(((
992 992  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
993 -)))
994 994  
995 -(((
996 996  Example screen shot after clear all RS485 commands. 
997 -)))
998 998  
999 -(((
1000 -
1001 -)))
1002 1002  
1003 -(((
1004 1004  The uplink screen shot is:
1005 -)))
1006 1006  
1007 1007  [[image:1654160691922-496.png]]
1008 1008  
1009 1009  
1010 -* (((
1011 -**Downlink Payload:**
1012 -)))
972 +* **Downlink Payload:**
1013 1013  
1014 -(((
1015 1015  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1016 -)))
1017 1017  
1018 1018  
1019 1019  
... ... @@ -1020,195 +1020,102 @@
1020 1020  
1021 1021  ==== **Set Serial Communication Parameters** ====
1022 1022  
1023 -(((
1024 1024  Set the Rs485 serial communication parameters:
1025 -)))
1026 1026  
1027 -* (((
1028 -**AT Command:**
1029 -)))
983 +* **AT Command:**
1030 1030  
1031 -(((
1032 1032  Set Baud Rate:
1033 -)))
1034 1034  
1035 1035  (% class="box infomessage" %)
1036 1036  (((
1037 -(((
1038 1038  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
1039 1039  )))
1040 -)))
1041 1041  
1042 -(((
1043 1043  Set UART Parity
1044 -)))
1045 1045  
1046 1046  (% class="box infomessage" %)
1047 1047  (((
1048 -(((
1049 1049  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
1050 1050  )))
1051 -)))
1052 1052  
1053 -(((
1054 1054  Set STOPBIT
1055 -)))
1056 1056  
1057 1057  (% class="box infomessage" %)
1058 1058  (((
1059 -(((
1060 1060  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1061 1061  )))
1062 -)))
1063 1063  
1064 -(((
1065 -
1066 -)))
1067 1067  
1068 -* (((
1069 -**Downlink Payload:**
1070 -)))
1007 +* **Downlink Payload:**
1071 1071  
1072 -(((
1073 1073  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1074 -)))
1075 1075  
1076 -(((
1077 1077  **Example:**
1078 -)))
1079 1079  
1080 -* (((
1081 -A7 01 00 60   same as AT+BAUDR=9600
1082 -)))
1083 -* (((
1084 -A7 01 04 80  same as AT+BAUDR=115200
1085 -)))
1013 +* A7 01 00 60   same as AT+BAUDR=9600
1014 +* A7 01 04 80  same as AT+BAUDR=115200
1086 1086  
1087 -(((
1088 1088  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1089 -)))
1090 1090  
1091 -(((
1092 1092  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1093 -)))
1094 1094  
1095 1095  
1096 -
1097 -
1098 1098  == 3.6 Listening mode for RS485 network ==
1099 1099  
1100 -(((
1101 1101  This feature support since firmware v1.4
1102 -)))
1103 1103  
1104 -(((
1105 1105  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.
1106 -)))
1107 1107  
1108 1108  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1109 1109  
1110 -(((
1111 1111  To enable the listening mode, use can run the command AT+RXMODE.
1112 -)))
1113 1113  
1114 -(((
1115 -
1116 -)))
1117 1117  
1118 -(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1119 -|=(% style="width: 100px;" %)(((
1120 -**Command example**
1121 -)))|=(% style="width: 400px;" %)(((
1122 -**Function**
1123 -)))
1124 -|(% style="width:100px" %)(((
1125 -AT+RXMODE=1,10
1126 -)))|(% style="width:400px" %)(((
1127 -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.
1128 -)))
1129 -|(% style="width:100px" %)(((
1130 -AT+RXMODE=2,500
1131 -)))|(% style="width:400px" %)(((
1132 -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
1133 -)))
1134 -|(% style="width:100px" %)(((
1135 -AT+RXMODE=0,0
1136 -)))|(% style="width:400px" %)(((
1137 -Disable listening mode. This is the default settings.
1138 -)))
1139 -|(% style="width:100px" %)(((
1140 -
1141 -)))|(% style="width:400px" %)(((
1142 -A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1143 -)))
1032 +(% border="1" style="background-color:#ffffcc; width:500px" %)
1033 +|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1034 +|(% 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.
1035 +|(% 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
1036 +|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1037 +|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1144 1144  
1145 -(((
1146 1146  **Downlink Command:**
1147 -)))
1148 1148  
1149 -(((
1150 1150  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1151 -)))
1152 1152  
1153 -(((
1154 -
1155 -)))
1156 1156  
1157 -(((
1158 1158  **Example**:
1159 -)))
1160 1160  
1161 -(((
1162 1162  The RS485-LN is set to AT+RXMODE=2,1000
1163 -)))
1164 1164  
1165 -(((
1166 1166  There is a two Modbus commands in the RS485 network as below:
1167 -)))
1168 1168  
1169 -(((
1170 1170  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1171 -)))
1172 1172  
1173 -(((
1174 1174  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1175 -)))
1176 1176  
1177 -(((
1178 1178  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
1179 -)))
1180 1180  
1181 -(((
1182 1182  [[image:image-20220602171200-9.png]]
1183 -)))
1184 1184  
1185 -(((
1186 -
1187 -)))
1188 1188  
1189 -(((
1190 -(((
1191 1191  (% 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.
1192 -)))
1193 -)))
1194 1194  
1195 1195  
1196 1196  == 3.7 Buttons ==
1197 1197  
1198 1198  
1199 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1200 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1201 -|(% 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**
1202 -|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1203 -|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1065 +(% border="1" style="background-color:#f7faff; width:500px" %)
1066 +|=**Button**|=(% style="width: 1420px;" %)**Feature**
1067 +|**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**
1068 +|**RST**|(% style="width:1420px" %)Reboot RS485
1069 +|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1204 1204  
1205 1205  == 3.8 LEDs ==
1206 1206  
1207 -
1208 -(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1209 -|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1073 +(% border="1" style="background-color:#f7faff; width:500px" %)
1074 +|=**LEDs**|=**Feature**
1210 1210  |**PWR**|Always on if there is power
1211 -|**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.
1076 +|**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.
1212 1212  
1213 1213  = 4. Case Study =
1214 1214  
... ... @@ -1219,26 +1219,19 @@
1219 1219  
1220 1220  == 5.1 Access AT Command ==
1221 1221  
1222 -(((
1223 1223  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.
1224 -)))
1225 1225  
1226 1226  [[image:1654162355560-817.png]]
1227 1227  
1228 1228  
1229 -(((
1230 1230  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:
1231 -)))
1232 1232  
1233 1233  [[image:1654162368066-342.png]]
1234 1234  
1235 1235  
1236 -(((
1237 1237  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/]]
1238 -)))
1239 1239  
1240 1240  
1241 -
1242 1242  == 5.2 Common AT Command Sequence ==
1243 1243  
1244 1244  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1261,9 +1261,7 @@
1261 1261  )))
1262 1262  
1263 1263  
1264 -(((
1265 1265  If device already joined network:
1266 -)))
1267 1267  
1268 1268  (% class="box infomessage" %)
1269 1269  (((
... ... @@ -1302,12 +1302,10 @@
1302 1302  
1303 1303  (% style="color:red" %)**Note:**
1304 1304  
1305 -(((
1306 1306  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1307 1307  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1308 1308  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.
1309 1309  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
1310 -)))
1311 1311  
1312 1312  [[image:1654162478620-421.png]]
1313 1313  
... ... @@ -1316,45 +1316,25 @@
1316 1316  
1317 1317  == 6.1 How to upgrade the image? ==
1318 1318  
1319 -(((
1320 1320  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1321 -)))
1322 1322  
1323 -* (((
1324 -Support new features
1325 -)))
1326 -* (((
1327 -For bug fix
1328 -)))
1329 -* (((
1330 -Change LoRaWAN bands.
1331 -)))
1175 +* Support new features
1176 +* For bug fix
1177 +* Change LoRaWAN bands.
1332 1332  
1333 -(((
1334 1334  Below shows the hardware connection for how to upload an image to RS485-LN:
1335 -)))
1336 1336  
1337 1337  [[image:1654162535040-878.png]]
1338 1338  
1339 -(((
1340 1340  **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]].
1341 -)))
1342 1342  
1343 -(((
1344 1344  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1345 -)))
1346 1346  
1347 -(((
1348 1348  **Step3: **Open flashloader; choose the correct COM port to update.
1349 -)))
1350 1350  
1351 1351  (((
1352 -(((
1353 -(((
1354 1354  (% 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.
1355 1355  )))
1356 -)))
1357 -)))
1358 1358  
1359 1359  
1360 1360  [[image:image-20220602175818-12.png]]
... ... @@ -1417,6 +1417,7 @@
1417 1417  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1418 1418  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1419 1419  
1254 +
1420 1420  = 9.Packing Info =
1421 1421  
1422 1422  
... ... @@ -1433,6 +1433,7 @@
1433 1433  * Package Size / pcs : 14.5 x 8 x 5 cm
1434 1434  * Weight / pcs : 170g
1435 1435  
1271 +
1436 1436  = 10. FCC Caution for RS485LN-US915 =
1437 1437  
1438 1438  (((

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