Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.11 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 59.1 >
edited by Xiaoling
on 2022/06/06 14:19
>
Change comment: There is no comment for this version

Summary

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Content
... ... @@ -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  (((
236 +(((
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  )))
239 +)))
240 240  
241 241  (((
242 +(((
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
244 +)))
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" %)(((
324 +(((
323 323  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
326 +)))
324 324  
328 +(((
325 325  AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,
330 +)))
326 326  
332 +(((
327 327  mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command
334 +)))
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  (((
... ... @@ -831,6 +831,7 @@
831 831  
832 832  
833 833  
840 +
834 834  ==== **RS485 command timeout** ====
835 835  
836 836  (((
... ... @@ -886,6 +886,7 @@
886 886  
887 887  
888 888  
896 +
889 889  ==== **Uplink payload mode** ====
890 890  
891 891  (((
... ... @@ -935,142 +935,271 @@
935 935  
936 936  ==== **Manually trigger an Uplink** ====
937 937  
946 +(((
938 938  Ask device to send an uplink immediately.
948 +)))
939 939  
940 -* **AT Command:**
950 +* (((
951 +**AT Command:**
952 +)))
941 941  
954 +(((
942 942  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
956 +)))
943 943  
958 +(((
959 +
960 +)))
944 944  
945 -* **Downlink Payload:**
962 +* (((
963 +**Downlink Payload:**
964 +)))
946 946  
966 +(((
947 947  **0x08 FF**, RS485-LN will immediately send an uplink.
968 +)))
948 948  
949 949  
950 950  
972 +
951 951  ==== **Clear RS485 Command** ====
952 952  
975 +(((
953 953  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
977 +)))
954 954  
955 -* **AT Command:**
979 +* (((
980 +**AT Command:**
981 +)))
956 956  
983 +(((
957 957  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
985 +)))
958 958  
987 +(((
959 959  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
989 +)))
960 960  
991 +(((
961 961  Example screen shot after clear all RS485 commands. 
993 +)))
962 962  
995 +(((
996 +
997 +)))
963 963  
999 +(((
964 964  The uplink screen shot is:
1001 +)))
965 965  
966 966  [[image:1654160691922-496.png]]
967 967  
968 968  
969 -* **Downlink Payload:**
1006 +* (((
1007 +**Downlink Payload:**
1008 +)))
970 970  
1010 +(((
971 971  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1012 +)))
972 972  
973 973  
974 974  
1016 +
975 975  ==== **Set Serial Communication Parameters** ====
976 976  
1019 +(((
977 977  Set the Rs485 serial communication parameters:
1021 +)))
978 978  
979 -* **AT Command:**
1023 +* (((
1024 +**AT Command:**
1025 +)))
980 980  
1027 +(((
981 981  Set Baud Rate:
1029 +)))
982 982  
983 983  (% class="box infomessage" %)
984 984  (((
1033 +(((
985 985  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
986 986  )))
1036 +)))
987 987  
1038 +(((
988 988  Set UART Parity
1040 +)))
989 989  
990 990  (% class="box infomessage" %)
991 991  (((
1044 +(((
992 992  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
993 993  )))
1047 +)))
994 994  
1049 +(((
995 995  Set STOPBIT
1051 +)))
996 996  
997 997  (% class="box infomessage" %)
998 998  (((
1055 +(((
999 999  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1000 1000  )))
1058 +)))
1001 1001  
1060 +(((
1061 +
1062 +)))
1002 1002  
1003 -* **Downlink Payload:**
1064 +* (((
1065 +**Downlink Payload:**
1066 +)))
1004 1004  
1068 +(((
1005 1005  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1070 +)))
1006 1006  
1072 +(((
1007 1007  **Example:**
1074 +)))
1008 1008  
1009 -* A7 01 00 60   same as AT+BAUDR=9600
1010 -* 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 +)))
1011 1011  
1083 +(((
1012 1012  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1085 +)))
1013 1013  
1087 +(((
1014 1014  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1089 +)))
1015 1015  
1016 1016  
1092 +
1093 +
1017 1017  == 3.6 Listening mode for RS485 network ==
1018 1018  
1096 +(((
1019 1019  This feature support since firmware v1.4
1098 +)))
1020 1020  
1100 +(((
1021 1021  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 +)))
1022 1022  
1023 1023  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1024 1024  
1106 +(((
1025 1025  To enable the listening mode, use can run the command AT+RXMODE.
1108 +)))
1026 1026  
1110 +(((
1111 +
1112 +)))
1027 1027  
1028 -(% border="1" style="background-color:#ffffcc; width:500px" %)
1029 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1030 -|(% 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.
1031 -|(% 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
1032 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1033 -|(% 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 +)))
1034 1034  
1141 +(((
1035 1035  **Downlink Command:**
1143 +)))
1036 1036  
1145 +(((
1037 1037  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1147 +)))
1038 1038  
1149 +(((
1150 +
1151 +)))
1039 1039  
1153 +(((
1040 1040  **Example**:
1155 +)))
1041 1041  
1157 +(((
1042 1042  The RS485-LN is set to AT+RXMODE=2,1000
1159 +)))
1043 1043  
1161 +(((
1044 1044  There is a two Modbus commands in the RS485 network as below:
1163 +)))
1045 1045  
1165 +(((
1046 1046  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1167 +)))
1047 1047  
1169 +(((
1048 1048  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1171 +)))
1049 1049  
1173 +(((
1050 1050  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 +)))
1051 1051  
1177 +(((
1052 1052  [[image:image-20220602171200-9.png]]
1179 +)))
1053 1053  
1181 +(((
1182 +
1183 +)))
1054 1054  
1185 +(((
1186 +(((
1055 1055  (% 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 +)))
1056 1056  
1057 1057  
1058 1058  == 3.7 Buttons ==
1059 1059  
1060 1060  
1061 -(% border="1" style="background-color:#f7faff; width:500px" %)
1062 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1063 -|**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**
1064 -|**RST**|(% style="width:1420px" %)Reboot RS485
1065 -|**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"]]
1066 1066  
1201 +
1067 1067  == 3.8 LEDs ==
1068 1068  
1069 -(% border="1" style="background-color:#f7faff; width:500px" %)
1070 -|=**LEDs**|=**Feature**
1204 +
1205 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1206 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1071 1071  |**PWR**|Always on if there is power
1072 -|**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.
1208 +|**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.
1073 1073  
1210 +
1074 1074  = 4. Case Study =
1075 1075  
1076 1076  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]]
... ... @@ -1080,19 +1080,26 @@
1080 1080  
1081 1081  == 5.1 Access AT Command ==
1082 1082  
1220 +(((
1083 1083  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.
1222 +)))
1084 1084  
1085 1085  [[image:1654162355560-817.png]]
1086 1086  
1087 1087  
1227 +(((
1088 1088  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:
1229 +)))
1089 1089  
1090 1090  [[image:1654162368066-342.png]]
1091 1091  
1092 1092  
1234 +(((
1093 1093  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/]]
1236 +)))
1094 1094  
1095 1095  
1239 +
1096 1096  == 5.2 Common AT Command Sequence ==
1097 1097  
1098 1098  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1115,7 +1115,9 @@
1115 1115  )))
1116 1116  
1117 1117  
1262 +(((
1118 1118  If device already joined network:
1264 +)))
1119 1119  
1120 1120  (% class="box infomessage" %)
1121 1121  (((
... ... @@ -1154,10 +1154,12 @@
1154 1154  
1155 1155  (% style="color:red" %)**Note:**
1156 1156  
1303 +(((
1157 1157  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1158 1158  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1159 1159  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.
1160 1160  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
1308 +)))
1161 1161  
1162 1162  [[image:1654162478620-421.png]]
1163 1163  
... ... @@ -1166,25 +1166,45 @@
1166 1166  
1167 1167  == 6.1 How to upgrade the image? ==
1168 1168  
1317 +(((
1169 1169  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1319 +)))
1170 1170  
1171 -* Support new features
1172 -* For bug fix
1173 -* Change LoRaWAN bands.
1321 +* (((
1322 +Support new features
1323 +)))
1324 +* (((
1325 +For bug fix
1326 +)))
1327 +* (((
1328 +Change LoRaWAN bands.
1329 +)))
1174 1174  
1331 +(((
1175 1175  Below shows the hardware connection for how to upload an image to RS485-LN:
1333 +)))
1176 1176  
1177 1177  [[image:1654162535040-878.png]]
1178 1178  
1337 +(((
1179 1179  **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]].
1339 +)))
1180 1180  
1341 +(((
1181 1181  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1343 +)))
1182 1182  
1345 +(((
1183 1183  **Step3: **Open flashloader; choose the correct COM port to update.
1347 +)))
1184 1184  
1185 1185  (((
1350 +(((
1351 +(((
1186 1186  (% 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.
1187 1187  )))
1354 +)))
1355 +)))
1188 1188  
1189 1189  
1190 1190  [[image:image-20220602175818-12.png]]
... ... @@ -1247,7 +1247,6 @@
1247 1247  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1248 1248  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1249 1249  
1250 -
1251 1251  = 9.Packing Info =
1252 1252  
1253 1253  
... ... @@ -1264,7 +1264,6 @@
1264 1264  * Package Size / pcs : 14.5 x 8 x 5 cm
1265 1265  * Weight / pcs : 170g
1266 1266  
1267 -
1268 1268  = 10. FCC Caution for RS485LN-US915 =
1269 1269  
1270 1270  (((

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