Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.13 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 60.2 >
edited by Xiaoling
on 2022/06/14 10:49
>
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Title
... ... @@ -1,1 +1,1 @@
1 -RS485-LN – RS485 to LoRaWAN Converter
1 +RS485-LN – RS485 to LoRaWAN Converter User Manual
Content
... ... @@ -3,7 +3,6 @@
3 3  
4 4  
5 5  
6 -**RS485-LN – RS485 to LoRaWAN Converter User Manual**
7 7  
8 8  
9 9  
... ... @@ -92,6 +92,7 @@
92 92  * Automatic RF Sense and CAD with ultra-fast AFC.
93 93  * Packet engine up to 256 bytes with CRC
94 94  
94 +
95 95  == 1.3 Features ==
96 96  
97 97  * LoRaWAN Class A & Class C protocol (default Class C)
... ... @@ -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  )))
... ... @@ -308,7 +308,6 @@
308 308  )))
309 309  
310 310  
311 -
312 312  === 3.3.2 Configure sensors ===
313 313  
314 314  (((
... ... @@ -320,15 +320,20 @@
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" %)(((
326 +(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
328 +)))
324 324  
330 +(((
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
332 +)))
326 326  
334 +(((
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
336 +)))
328 328  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
329 329  
330 330  
331 -
332 332  === 3.3.3 Configure read commands for each sampling ===
333 333  
334 334  (((
... ... @@ -937,142 +937,271 @@
937 937  
938 938  ==== **Manually trigger an Uplink** ====
939 939  
948 +(((
940 940  Ask device to send an uplink immediately.
950 +)))
941 941  
942 -* **AT Command:**
952 +* (((
953 +**AT Command:**
954 +)))
943 943  
956 +(((
944 944  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
958 +)))
945 945  
960 +(((
961 +
962 +)))
946 946  
947 -* **Downlink Payload:**
964 +* (((
965 +**Downlink Payload:**
966 +)))
948 948  
968 +(((
949 949  **0x08 FF**, RS485-LN will immediately send an uplink.
970 +)))
950 950  
951 951  
952 952  
974 +
953 953  ==== **Clear RS485 Command** ====
954 954  
977 +(((
955 955  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
979 +)))
956 956  
957 -* **AT Command:**
981 +* (((
982 +**AT Command:**
983 +)))
958 958  
985 +(((
959 959  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
987 +)))
960 960  
989 +(((
961 961  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
991 +)))
962 962  
993 +(((
963 963  Example screen shot after clear all RS485 commands. 
995 +)))
964 964  
997 +(((
998 +
999 +)))
965 965  
1001 +(((
966 966  The uplink screen shot is:
1003 +)))
967 967  
968 968  [[image:1654160691922-496.png]]
969 969  
970 970  
971 -* **Downlink Payload:**
1008 +* (((
1009 +**Downlink Payload:**
1010 +)))
972 972  
1012 +(((
973 973  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1014 +)))
974 974  
975 975  
976 976  
1018 +
977 977  ==== **Set Serial Communication Parameters** ====
978 978  
1021 +(((
979 979  Set the Rs485 serial communication parameters:
1023 +)))
980 980  
981 -* **AT Command:**
1025 +* (((
1026 +**AT Command:**
1027 +)))
982 982  
1029 +(((
983 983  Set Baud Rate:
1031 +)))
984 984  
985 985  (% class="box infomessage" %)
986 986  (((
1035 +(((
987 987  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
988 988  )))
1038 +)))
989 989  
1040 +(((
990 990  Set UART Parity
1042 +)))
991 991  
992 992  (% class="box infomessage" %)
993 993  (((
1046 +(((
994 994  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
995 995  )))
1049 +)))
996 996  
1051 +(((
997 997  Set STOPBIT
1053 +)))
998 998  
999 999  (% class="box infomessage" %)
1000 1000  (((
1057 +(((
1001 1001  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1002 1002  )))
1060 +)))
1003 1003  
1062 +(((
1063 +
1064 +)))
1004 1004  
1005 -* **Downlink Payload:**
1066 +* (((
1067 +**Downlink Payload:**
1068 +)))
1006 1006  
1070 +(((
1007 1007  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1072 +)))
1008 1008  
1074 +(((
1009 1009  **Example:**
1076 +)))
1010 1010  
1011 -* A7 01 00 60   same as AT+BAUDR=9600
1012 -* A7 01 04 80  same as AT+BAUDR=115200
1078 +* (((
1079 +A7 01 00 60   same as AT+BAUDR=9600
1080 +)))
1081 +* (((
1082 +A7 01 04 80  same as AT+BAUDR=115200
1083 +)))
1013 1013  
1085 +(((
1014 1014  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1087 +)))
1015 1015  
1089 +(((
1016 1016  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1091 +)))
1017 1017  
1018 1018  
1094 +
1095 +
1019 1019  == 3.6 Listening mode for RS485 network ==
1020 1020  
1098 +(((
1021 1021  This feature support since firmware v1.4
1100 +)))
1022 1022  
1102 +(((
1023 1023  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.
1104 +)))
1024 1024  
1025 1025  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1026 1026  
1108 +(((
1027 1027  To enable the listening mode, use can run the command AT+RXMODE.
1110 +)))
1028 1028  
1112 +(((
1113 +
1114 +)))
1029 1029  
1030 -(% border="1" style="background-color:#ffffcc; width:500px" %)
1031 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1032 -|(% 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.
1033 -|(% 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
1034 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1035 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1116 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1117 +|=(% style="width: 100px;" %)(((
1118 +**Command example**
1119 +)))|=(% style="width: 400px;" %)(((
1120 +**Function**
1121 +)))
1122 +|(% style="width:100px" %)(((
1123 +AT+RXMODE=1,10
1124 +)))|(% style="width:400px" %)(((
1125 +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.
1126 +)))
1127 +|(% style="width:100px" %)(((
1128 +AT+RXMODE=2,500
1129 +)))|(% style="width:400px" %)(((
1130 +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
1131 +)))
1132 +|(% style="width:100px" %)(((
1133 +AT+RXMODE=0,0
1134 +)))|(% style="width:400px" %)(((
1135 +Disable listening mode. This is the default settings.
1136 +)))
1137 +|(% style="width:100px" %)(((
1138 +
1139 +)))|(% style="width:400px" %)(((
1140 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1141 +)))
1036 1036  
1143 +(((
1037 1037  **Downlink Command:**
1145 +)))
1038 1038  
1147 +(((
1039 1039  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1149 +)))
1040 1040  
1151 +(((
1152 +
1153 +)))
1041 1041  
1155 +(((
1042 1042  **Example**:
1157 +)))
1043 1043  
1159 +(((
1044 1044  The RS485-LN is set to AT+RXMODE=2,1000
1161 +)))
1045 1045  
1163 +(((
1046 1046  There is a two Modbus commands in the RS485 network as below:
1165 +)))
1047 1047  
1167 +(((
1048 1048  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1169 +)))
1049 1049  
1171 +(((
1050 1050  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1173 +)))
1051 1051  
1175 +(((
1052 1052  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
1177 +)))
1053 1053  
1179 +(((
1054 1054  [[image:image-20220602171200-9.png]]
1181 +)))
1055 1055  
1183 +(((
1184 +
1185 +)))
1056 1056  
1187 +(((
1188 +(((
1057 1057  (% 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.
1190 +)))
1191 +)))
1058 1058  
1059 1059  
1060 1060  == 3.7 Buttons ==
1061 1061  
1062 1062  
1063 -(% border="1" style="background-color:#f7faff; width:500px" %)
1064 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1065 -|**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**
1066 -|**RST**|(% style="width:1420px" %)Reboot RS485
1067 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1197 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1198 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1199 +|(% 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**
1200 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1201 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1068 1068  
1203 +
1069 1069  == 3.8 LEDs ==
1070 1070  
1071 -(% border="1" style="background-color:#f7faff; width:500px" %)
1072 -|=**LEDs**|=**Feature**
1206 +
1207 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1208 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1073 1073  |**PWR**|Always on if there is power
1074 -|**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.
1210 +|**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.
1075 1075  
1212 +
1076 1076  = 4. Case Study =
1077 1077  
1078 1078  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]]
... ... @@ -1082,19 +1082,26 @@
1082 1082  
1083 1083  == 5.1 Access AT Command ==
1084 1084  
1222 +(((
1085 1085  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 +)))
1086 1086  
1087 1087  [[image:1654162355560-817.png]]
1088 1088  
1089 1089  
1229 +(((
1090 1090  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 +)))
1091 1091  
1092 1092  [[image:1654162368066-342.png]]
1093 1093  
1094 1094  
1236 +(((
1095 1095  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 +)))
1096 1096  
1097 1097  
1241 +
1098 1098  == 5.2 Common AT Command Sequence ==
1099 1099  
1100 1100  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1117,7 +1117,9 @@
1117 1117  )))
1118 1118  
1119 1119  
1264 +(((
1120 1120  If device already joined network:
1266 +)))
1121 1121  
1122 1122  (% class="box infomessage" %)
1123 1123  (((
... ... @@ -1156,10 +1156,12 @@
1156 1156  
1157 1157  (% style="color:red" %)**Note:**
1158 1158  
1305 +(((
1159 1159  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1160 1160  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1161 1161  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.
1162 1162  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 +)))
1163 1163  
1164 1164  [[image:1654162478620-421.png]]
1165 1165  
... ... @@ -1168,25 +1168,45 @@
1168 1168  
1169 1169  == 6.1 How to upgrade the image? ==
1170 1170  
1319 +(((
1171 1171  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1321 +)))
1172 1172  
1173 -* Support new features
1174 -* For bug fix
1175 -* Change LoRaWAN bands.
1323 +* (((
1324 +Support new features
1325 +)))
1326 +* (((
1327 +For bug fix
1328 +)))
1329 +* (((
1330 +Change LoRaWAN bands.
1331 +)))
1176 1176  
1333 +(((
1177 1177  Below shows the hardware connection for how to upload an image to RS485-LN:
1335 +)))
1178 1178  
1179 1179  [[image:1654162535040-878.png]]
1180 1180  
1339 +(((
1181 1181  **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 +)))
1182 1182  
1343 +(((
1183 1183  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1345 +)))
1184 1184  
1347 +(((
1185 1185  **Step3: **Open flashloader; choose the correct COM port to update.
1349 +)))
1186 1186  
1187 1187  (((
1352 +(((
1353 +(((
1188 1188  (% 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.
1189 1189  )))
1356 +)))
1357 +)))
1190 1190  
1191 1191  
1192 1192  [[image:image-20220602175818-12.png]]
... ... @@ -1249,7 +1249,6 @@
1249 1249  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1250 1250  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1251 1251  
1252 -
1253 1253  = 9.Packing Info =
1254 1254  
1255 1255  
... ... @@ -1266,7 +1266,6 @@
1266 1266  * Package Size / pcs : 14.5 x 8 x 5 cm
1267 1267  * Weight / pcs : 170g
1268 1268  
1269 -
1270 1270  = 10. FCC Caution for RS485LN-US915 =
1271 1271  
1272 1272  (((

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