Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.12 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 58.52 >
edited by Xiaoling
on 2022/06/06 13:56
>
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  (((
... ... @@ -328,7 +328,6 @@
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  
834 +
834 834  ==== **RS485 command timeout** ====
835 835  
836 836  (((
... ... @@ -936,142 +936,271 @@
936 936  
937 937  ==== **Manually trigger an Uplink** ====
938 938  
940 +(((
939 939  Ask device to send an uplink immediately.
942 +)))
940 940  
941 -* **AT Command:**
944 +* (((
945 +**AT Command:**
946 +)))
942 942  
948 +(((
943 943  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
950 +)))
944 944  
952 +(((
953 +
954 +)))
945 945  
946 -* **Downlink Payload:**
956 +* (((
957 +**Downlink Payload:**
958 +)))
947 947  
960 +(((
948 948  **0x08 FF**, RS485-LN will immediately send an uplink.
962 +)))
949 949  
950 950  
951 951  
966 +
952 952  ==== **Clear RS485 Command** ====
953 953  
969 +(((
954 954  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
971 +)))
955 955  
956 -* **AT Command:**
973 +* (((
974 +**AT Command:**
975 +)))
957 957  
977 +(((
958 958  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
979 +)))
959 959  
981 +(((
960 960  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
983 +)))
961 961  
985 +(((
962 962  Example screen shot after clear all RS485 commands. 
987 +)))
963 963  
989 +(((
990 +
991 +)))
964 964  
993 +(((
965 965  The uplink screen shot is:
995 +)))
966 966  
967 967  [[image:1654160691922-496.png]]
968 968  
969 969  
970 -* **Downlink Payload:**
1000 +* (((
1001 +**Downlink Payload:**
1002 +)))
971 971  
1004 +(((
972 972  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1006 +)))
973 973  
974 974  
975 975  
1010 +
976 976  ==== **Set Serial Communication Parameters** ====
977 977  
1013 +(((
978 978  Set the Rs485 serial communication parameters:
1015 +)))
979 979  
980 -* **AT Command:**
1017 +* (((
1018 +**AT Command:**
1019 +)))
981 981  
1021 +(((
982 982  Set Baud Rate:
1023 +)))
983 983  
984 984  (% class="box infomessage" %)
985 985  (((
1027 +(((
986 986  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
987 987  )))
1030 +)))
988 988  
1032 +(((
989 989  Set UART Parity
1034 +)))
990 990  
991 991  (% class="box infomessage" %)
992 992  (((
1038 +(((
993 993  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
994 994  )))
1041 +)))
995 995  
1043 +(((
996 996  Set STOPBIT
1045 +)))
997 997  
998 998  (% class="box infomessage" %)
999 999  (((
1049 +(((
1000 1000  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
1001 1001  )))
1052 +)))
1002 1002  
1054 +(((
1055 +
1056 +)))
1003 1003  
1004 -* **Downlink Payload:**
1058 +* (((
1059 +**Downlink Payload:**
1060 +)))
1005 1005  
1062 +(((
1006 1006  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1064 +)))
1007 1007  
1066 +(((
1008 1008  **Example:**
1068 +)))
1009 1009  
1010 -* A7 01 00 60   same as AT+BAUDR=9600
1011 -* A7 01 04 80  same as AT+BAUDR=115200
1070 +* (((
1071 +A7 01 00 60   same as AT+BAUDR=9600
1072 +)))
1073 +* (((
1074 +A7 01 04 80  same as AT+BAUDR=115200
1075 +)))
1012 1012  
1077 +(((
1013 1013  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1079 +)))
1014 1014  
1081 +(((
1015 1015  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1083 +)))
1016 1016  
1017 1017  
1086 +
1087 +
1018 1018  == 3.6 Listening mode for RS485 network ==
1019 1019  
1090 +(((
1020 1020  This feature support since firmware v1.4
1092 +)))
1021 1021  
1094 +(((
1022 1022  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.
1096 +)))
1023 1023  
1024 1024  [[image:image-20220602171200-8.png||height="567" width="1007"]]
1025 1025  
1100 +(((
1026 1026  To enable the listening mode, use can run the command AT+RXMODE.
1102 +)))
1027 1027  
1104 +(((
1105 +
1106 +)))
1028 1028  
1029 -(% border="1" style="background-color:#ffffcc; width:500px" %)
1030 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
1031 -|(% 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.
1032 -|(% 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
1033 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
1034 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 ~| cc)
1108 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %)
1109 +|=(% style="width: 100px;" %)(((
1110 +**Command example**
1111 +)))|=(% style="width: 400px;" %)(((
1112 +**Function**
1113 +)))
1114 +|(% style="width:100px" %)(((
1115 +AT+RXMODE=1,10
1116 +)))|(% style="width:400px" %)(((
1117 +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.
1118 +)))
1119 +|(% style="width:100px" %)(((
1120 +AT+RXMODE=2,500
1121 +)))|(% style="width:400px" %)(((
1122 +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
1123 +)))
1124 +|(% style="width:100px" %)(((
1125 +AT+RXMODE=0,0
1126 +)))|(% style="width:400px" %)(((
1127 +Disable listening mode. This is the default settings.
1128 +)))
1129 +|(% style="width:100px" %)(((
1130 +
1131 +)))|(% style="width:400px" %)(((
1132 +A6 aa bb cc  same as AT+RXMODE=aa,(bb<<8 | cc)
1133 +)))
1035 1035  
1135 +(((
1036 1036  **Downlink Command:**
1137 +)))
1037 1037  
1139 +(((
1038 1038  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1141 +)))
1039 1039  
1143 +(((
1144 +
1145 +)))
1040 1040  
1147 +(((
1041 1041  **Example**:
1149 +)))
1042 1042  
1151 +(((
1043 1043  The RS485-LN is set to AT+RXMODE=2,1000
1153 +)))
1044 1044  
1155 +(((
1045 1045  There is a two Modbus commands in the RS485 network as below:
1157 +)))
1046 1046  
1159 +(((
1047 1047  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1161 +)))
1048 1048  
1163 +(((
1049 1049  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1165 +)))
1050 1050  
1167 +(((
1051 1051  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
1169 +)))
1052 1052  
1171 +(((
1053 1053  [[image:image-20220602171200-9.png]]
1173 +)))
1054 1054  
1175 +(((
1176 +
1177 +)))
1055 1055  
1179 +(((
1180 +(((
1056 1056  (% 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.
1182 +)))
1183 +)))
1057 1057  
1058 1058  
1059 1059  == 3.7 Buttons ==
1060 1060  
1061 1061  
1062 -(% border="1" style="background-color:#f7faff; width:500px" %)
1063 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1064 -|**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**
1065 -|**RST**|(% style="width:1420px" %)Reboot RS485
1066 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1189 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %)
1190 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature**
1191 +|(% 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**
1192 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485
1193 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1067 1067  
1195 +
1068 1068  == 3.8 LEDs ==
1069 1069  
1070 -(% border="1" style="background-color:#f7faff; width:500px" %)
1071 -|=**LEDs**|=**Feature**
1198 +
1199 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1200 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1072 1072  |**PWR**|Always on if there is power
1073 -|**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.
1202 +|**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.
1074 1074  
1204 +
1075 1075  = 4. Case Study =
1076 1076  
1077 1077  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]]
... ... @@ -1081,19 +1081,26 @@
1081 1081  
1082 1082  == 5.1 Access AT Command ==
1083 1083  
1214 +(((
1084 1084  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.
1216 +)))
1085 1085  
1086 1086  [[image:1654162355560-817.png]]
1087 1087  
1088 1088  
1221 +(((
1089 1089  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:
1223 +)))
1090 1090  
1091 1091  [[image:1654162368066-342.png]]
1092 1092  
1093 1093  
1228 +(((
1094 1094  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/]]
1230 +)))
1095 1095  
1096 1096  
1233 +
1097 1097  == 5.2 Common AT Command Sequence ==
1098 1098  
1099 1099  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1155,10 +1155,12 @@
1155 1155  
1156 1156  (% style="color:red" %)**Note:**
1157 1157  
1295 +(((
1158 1158  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1159 1159  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1160 1160  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.
1161 1161  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
1300 +)))
1162 1162  
1163 1163  [[image:1654162478620-421.png]]
1164 1164  
... ... @@ -1167,25 +1167,45 @@
1167 1167  
1168 1168  == 6.1 How to upgrade the image? ==
1169 1169  
1309 +(((
1170 1170  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1311 +)))
1171 1171  
1172 -* Support new features
1173 -* For bug fix
1174 -* Change LoRaWAN bands.
1313 +* (((
1314 +Support new features
1315 +)))
1316 +* (((
1317 +For bug fix
1318 +)))
1319 +* (((
1320 +Change LoRaWAN bands.
1321 +)))
1175 1175  
1323 +(((
1176 1176  Below shows the hardware connection for how to upload an image to RS485-LN:
1325 +)))
1177 1177  
1178 1178  [[image:1654162535040-878.png]]
1179 1179  
1329 +(((
1180 1180  **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]].
1331 +)))
1181 1181  
1333 +(((
1182 1182  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1335 +)))
1183 1183  
1337 +(((
1184 1184  **Step3: **Open flashloader; choose the correct COM port to update.
1339 +)))
1185 1185  
1186 1186  (((
1342 +(((
1343 +(((
1187 1187  (% 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.
1188 1188  )))
1346 +)))
1347 +)))
1189 1189  
1190 1190  
1191 1191  [[image:image-20220602175818-12.png]]
... ... @@ -1248,7 +1248,6 @@
1248 1248  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1249 1249  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1250 1250  
1251 -
1252 1252  = 9.Packing Info =
1253 1253  
1254 1254  
... ... @@ -1265,7 +1265,6 @@
1265 1265  * Package Size / pcs : 14.5 x 8 x 5 cm
1266 1266  * Weight / pcs : 170g
1267 1267  
1268 -
1269 1269  = 10. FCC Caution for RS485LN-US915 =
1270 1270  
1271 1271  (((

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