Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.14 >
edited by Xiaoling
on 2022/06/06 11:23
To version < 59.2 >
edited by Xiaoling
on 2022/06/06 14:20
>
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)
... ... @@ -103,7 +103,6 @@
103 103  * Support Modbus protocol
104 104  * Support Interrupt uplink (Since hardware version v1.2)
105 105  
106 -
107 107  == 1.4 Applications ==
108 108  
109 109  * Smart Buildings & Home Automation
... ... @@ -113,7 +113,6 @@
113 113  * Smart Cities
114 114  * Smart Factory
115 115  
116 -
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  (((
238 +(((
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  )))
241 +)))
240 240  
241 241  (((
244 +(((
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
246 +)))
243 243  
244 244  
245 245  )))
... ... @@ -307,8 +307,6 @@
307 307  )))
308 308  )))
309 309  
310 -
311 -
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
... ... @@ -320,15 +320,19 @@
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" %)(((
325 +(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
327 +)))
324 324  
329 +(((
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
331 +)))
326 326  
333 +(((
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
335 +)))
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 -
331 -
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
... ... @@ -937,40 +937,73 @@
937 937  
938 938  ==== **Manually trigger an Uplink** ====
939 939  
946 +(((
940 940  Ask device to send an uplink immediately.
948 +)))
941 941  
942 -* **AT Command:**
950 +* (((
951 +**AT Command:**
952 +)))
943 943  
954 +(((
944 944  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
956 +)))
945 945  
958 +(((
959 +
960 +)))
946 946  
947 -* **Downlink Payload:**
962 +* (((
963 +**Downlink Payload:**
964 +)))
948 948  
966 +(((
949 949  **0x08 FF**, RS485-LN will immediately send an uplink.
968 +)))
950 950  
951 951  
952 952  
972 +
953 953  ==== **Clear RS485 Command** ====
954 954  
975 +(((
955 955  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
977 +)))
956 956  
957 -* **AT Command:**
979 +* (((
980 +**AT Command:**
981 +)))
958 958  
983 +(((
959 959  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
985 +)))
960 960  
987 +(((
961 961  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
989 +)))
962 962  
991 +(((
963 963  Example screen shot after clear all RS485 commands. 
993 +)))
964 964  
995 +(((
996 +
997 +)))
965 965  
999 +(((
966 966  The uplink screen shot is:
1001 +)))
967 967  
968 968  [[image:1654160691922-496.png]]
969 969  
970 970  
971 -* **Downlink Payload:**
1006 +* (((
1007 +**Downlink Payload:**
1008 +)))
972 972  
1010 +(((
973 973  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1012 +)))
974 974  
975 975  
976 976  
... ... @@ -977,102 +977,195 @@
977 977  
978 978  ==== **Set Serial Communication Parameters** ====
979 979  
1019 +(((
980 980  Set the Rs485 serial communication parameters:
1021 +)))
981 981  
982 -* **AT Command:**
1023 +* (((
1024 +**AT Command:**
1025 +)))
983 983  
1027 +(((
984 984  Set Baud Rate:
1029 +)))
985 985  
986 986  (% class="box infomessage" %)
987 987  (((
1033 +(((
988 988  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
989 989  )))
1036 +)))
990 990  
1038 +(((
991 991  Set UART Parity
1040 +)))
992 992  
993 993  (% class="box infomessage" %)
994 994  (((
1044 +(((
995 995  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
996 996  )))
1047 +)))
997 997  
1049 +(((
998 998  Set STOPBIT
1051 +)))
999 999  
1000 1000  (% class="box infomessage" %)
1001 1001  (((
1055 +(((
1002 1002  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1003 1003  )))
1058 +)))
1004 1004  
1060 +(((
1061 +
1062 +)))
1005 1005  
1006 -* **Downlink Payload:**
1064 +* (((
1065 +**Downlink Payload:**
1066 +)))
1007 1007  
1068 +(((
1008 1008  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1070 +)))
1009 1009  
1072 +(((
1010 1010  **Example:**
1074 +)))
1011 1011  
1012 -* A7 01 00 60   same as AT+BAUDR=9600
1013 -* A7 01 04 80  same as AT+BAUDR=115200
1076 +* (((
1077 +A7 01 00 60   same as AT+BAUDR=9600
1078 +)))
1079 +* (((
1080 +A7 01 04 80  same as AT+BAUDR=115200
1081 +)))
1014 1014  
1083 +(((
1015 1015  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1085 +)))
1016 1016  
1087 +(((
1017 1017  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1089 +)))
1018 1018  
1019 1019  
1092 +
1093 +
1020 1020  == 3.6 Listening mode for RS485 network ==
1021 1021  
1096 +(((
1022 1022  This feature support since firmware v1.4
1098 +)))
1023 1023  
1100 +(((
1024 1024  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.
1102 +)))
1025 1025  
1026 1026  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1027 1027  
1106 +(((
1028 1028  To enable the listening mode, use can run the command AT+RXMODE.
1108 +)))
1029 1029  
1110 +(((
1111 +
1112 +)))
1030 1030  
1031 -(% border="1" style="background-color:#ffffcc; width:500px" %)
1032 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1033 -|(% 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.
1034 -|(% 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
1035 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1036 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1114 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1115 +|=(% style="width: 100px;" %)(((
1116 +**Command example**
1117 +)))|=(% style="width: 400px;" %)(((
1118 +**Function**
1119 +)))
1120 +|(% style="width:100px" %)(((
1121 +AT+RXMODE=1,10
1122 +)))|(% style="width:400px" %)(((
1123 +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.
1124 +)))
1125 +|(% style="width:100px" %)(((
1126 +AT+RXMODE=2,500
1127 +)))|(% style="width:400px" %)(((
1128 +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
1129 +)))
1130 +|(% style="width:100px" %)(((
1131 +AT+RXMODE=0,0
1132 +)))|(% style="width:400px" %)(((
1133 +Disable listening mode. This is the default settings.
1134 +)))
1135 +|(% style="width:100px" %)(((
1136 +
1137 +)))|(% style="width:400px" %)(((
1138 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1139 +)))
1037 1037  
1141 +(((
1038 1038  **Downlink Command:**
1143 +)))
1039 1039  
1145 +(((
1040 1040  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1147 +)))
1041 1041  
1149 +(((
1150 +
1151 +)))
1042 1042  
1153 +(((
1043 1043  **Example**:
1155 +)))
1044 1044  
1157 +(((
1045 1045  The RS485-LN is set to AT+RXMODE=2,1000
1159 +)))
1046 1046  
1161 +(((
1047 1047  There is a two Modbus commands in the RS485 network as below:
1163 +)))
1048 1048  
1165 +(((
1049 1049  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1167 +)))
1050 1050  
1169 +(((
1051 1051  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1171 +)))
1052 1052  
1173 +(((
1053 1053  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
1175 +)))
1054 1054  
1177 +(((
1055 1055  [[image:image-20220602171200-9.png]]
1179 +)))
1056 1056  
1181 +(((
1182 +
1183 +)))
1057 1057  
1185 +(((
1186 +(((
1058 1058  (% 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.
1188 +)))
1189 +)))
1059 1059  
1060 1060  
1061 1061  == 3.7 Buttons ==
1062 1062  
1063 1063  
1064 -(% border="1" style="background-color:#f7faff; width:500px" %)
1065 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1066 -|**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**
1067 -|**RST**|(% style="width:1420px" %)Reboot RS485
1068 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1195 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1196 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1197 +|(% 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**
1198 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1199 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1069 1069  
1070 1070  == 3.8 LEDs ==
1071 1071  
1072 -(% border="1" style="background-color:#f7faff; width:500px" %)
1073 -|=**LEDs**|=**Feature**
1203 +
1204 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1205 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1074 1074  |**PWR**|Always on if there is power
1075 -|**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.
1207 +|**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 1076  
1077 1077  = 4. Case Study =
1078 1078  
... ... @@ -1083,19 +1083,26 @@
1083 1083  
1084 1084  == 5.1 Access AT Command ==
1085 1085  
1218 +(((
1086 1086  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.
1220 +)))
1087 1087  
1088 1088  [[image:1654162355560-817.png]]
1089 1089  
1090 1090  
1225 +(((
1091 1091  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:
1227 +)))
1092 1092  
1093 1093  [[image:1654162368066-342.png]]
1094 1094  
1095 1095  
1232 +(((
1096 1096  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/]]
1234 +)))
1097 1097  
1098 1098  
1237 +
1099 1099  == 5.2 Common AT Command Sequence ==
1100 1100  
1101 1101  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1118,7 +1118,9 @@
1118 1118  )))
1119 1119  
1120 1120  
1260 +(((
1121 1121  If device already joined network:
1262 +)))
1122 1122  
1123 1123  (% class="box infomessage" %)
1124 1124  (((
... ... @@ -1157,10 +1157,12 @@
1157 1157  
1158 1158  (% style="color:red" %)**Note:**
1159 1159  
1301 +(((
1160 1160  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1161 1161  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1162 1162  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.
1163 1163  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
1306 +)))
1164 1164  
1165 1165  [[image:1654162478620-421.png]]
1166 1166  
... ... @@ -1169,25 +1169,45 @@
1169 1169  
1170 1170  == 6.1 How to upgrade the image? ==
1171 1171  
1315 +(((
1172 1172  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1317 +)))
1173 1173  
1174 -* Support new features
1175 -* For bug fix
1176 -* Change LoRaWAN bands.
1319 +* (((
1320 +Support new features
1321 +)))
1322 +* (((
1323 +For bug fix
1324 +)))
1325 +* (((
1326 +Change LoRaWAN bands.
1327 +)))
1177 1177  
1329 +(((
1178 1178  Below shows the hardware connection for how to upload an image to RS485-LN:
1331 +)))
1179 1179  
1180 1180  [[image:1654162535040-878.png]]
1181 1181  
1335 +(((
1182 1182  **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]].
1337 +)))
1183 1183  
1339 +(((
1184 1184  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1341 +)))
1185 1185  
1343 +(((
1186 1186  **Step3: **Open flashloader; choose the correct COM port to update.
1345 +)))
1187 1187  
1188 1188  (((
1348 +(((
1349 +(((
1189 1189  (% 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.
1190 1190  )))
1352 +)))
1353 +)))
1191 1191  
1192 1192  
1193 1193  [[image:image-20220602175818-12.png]]
... ... @@ -1250,7 +1250,6 @@
1250 1250  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1251 1251  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1252 1252  
1253 -
1254 1254  = 9.Packing Info =
1255 1255  
1256 1256  
... ... @@ -1267,7 +1267,6 @@
1267 1267  * Package Size / pcs : 14.5 x 8 x 5 cm
1268 1268  * Weight / pcs : 170g
1269 1269  
1270 -
1271 1271  = 10. FCC Caution for RS485LN-US915 =
1272 1272  
1273 1273  (((

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