Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 58.8 >
edited by Xiaoling
on 2022/06/06 11:22
To version < 58.55 >
edited by Xiaoling
on 2022/06/06 14:17
>
Change comment: There is no comment for this version

Summary

Details

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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  (((
... ... @@ -795,18 +795,35 @@
795 795  
796 796  ==== **Fast command to handle MODBUS device** ====
797 797  
804 +(((
798 798  AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]].
806 +)))
799 799  
808 +(((
800 800  This command is valid since v1.3 firmware version
810 +)))
801 801  
812 +(((
802 802  AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore.
814 +)))
803 803  
816 +(((
817 +
818 +)))
804 804  
820 +(((
805 805  **Example:**
822 +)))
806 806  
807 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
808 -* AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
809 -* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
824 +* (((
825 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.
826 +)))
827 +* (((
828 +AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08.
829 +)))
830 +* (((
831 +AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10.
832 +)))
810 810  
811 811  [[image:image-20220602165351-6.png]]
812 812  
... ... @@ -814,201 +814,377 @@
814 814  
815 815  
816 816  
840 +
817 817  ==== **RS485 command timeout** ====
818 818  
843 +(((
819 819  Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action.
845 +)))
820 820  
847 +(((
821 821  Default value: 0, range:  0 ~~ 65 seconds
849 +)))
822 822  
823 -* **AT Command:**
851 +* (((
852 +**AT Command:**
853 +)))
824 824  
825 825  (% class="box infomessage" %)
826 826  (((
857 +(((
827 827  **AT+CMDDLaa=hex(bb cc)*1000**
828 828  )))
860 +)))
829 829  
862 +(((
830 830  **Example:**
864 +)))
831 831  
866 +(((
832 832  **AT+CMDDL1=1000** to send the open time to 1000ms
868 +)))
833 833  
870 +(((
871 +
872 +)))
834 834  
835 -* **Downlink Payload:**
874 +* (((
875 +**Downlink Payload:**
876 +)))
836 836  
878 +(((
837 837  **0x AA aa bb cc**
880 +)))
838 838  
882 +(((
839 839  Same as: AT+CMDDLaa=hex(bb cc)*1000
884 +)))
840 840  
886 +(((
841 841   **Example:**
888 +)))
842 842  
890 +(((
843 843   0xAA 01 00 01  ~-~-> Same as **AT+CMDDL1=1000 ms**
892 +)))
844 844  
845 845  
846 846  
896 +
847 847  ==== **Uplink payload mode** ====
848 848  
899 +(((
849 849  Define to use one uplink or multiple uplinks for the sampling.
901 +)))
850 850  
903 +(((
851 851  The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]]
905 +)))
852 852  
853 -* **AT Command:**
907 +* (((
908 +**AT Command:**
909 +)))
854 854  
855 855  (% class="box infomessage" %)
856 856  (((
913 +(((
857 857  **AT+DATAUP=0**
858 858  )))
916 +)))
859 859  
860 860  (% class="box infomessage" %)
861 861  (((
920 +(((
862 862  **AT+DATAUP=1**
863 863  )))
923 +)))
864 864  
925 +(((
926 +
927 +)))
865 865  
866 -* **Downlink Payload:**
929 +* (((
930 +**Downlink Payload:**
931 +)))
867 867  
933 +(((
868 868  **0xAD 00**  **~-~->** Same as AT+DATAUP=0
935 +)))
869 869  
937 +(((
870 870  **0xAD 01**  **~-~->** Same as AT+DATAUP=1
939 +)))
871 871  
872 872  
873 873  
943 +
874 874  ==== **Manually trigger an Uplink** ====
875 875  
946 +(((
876 876  Ask device to send an uplink immediately.
948 +)))
877 877  
878 -* **AT Command:**
950 +* (((
951 +**AT Command:**
952 +)))
879 879  
954 +(((
880 880  No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same.
956 +)))
881 881  
958 +(((
959 +
960 +)))
882 882  
883 -* **Downlink Payload:**
962 +* (((
963 +**Downlink Payload:**
964 +)))
884 884  
966 +(((
885 885  **0x08 FF**, RS485-LN will immediately send an uplink.
968 +)))
886 886  
887 887  
888 888  
972 +
889 889  ==== **Clear RS485 Command** ====
890 890  
975 +(((
891 891  The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them.
977 +)))
892 892  
893 -* **AT Command:**
979 +* (((
980 +**AT Command:**
981 +)))
894 894  
983 +(((
895 895  **AT+CMDEAR=mm,nn**   mm: start position of erase ,nn: stop position of erase
985 +)))
896 896  
987 +(((
897 897  Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10
989 +)))
898 898  
991 +(((
899 899  Example screen shot after clear all RS485 commands. 
993 +)))
900 900  
995 +(((
996 +
997 +)))
901 901  
999 +(((
902 902  The uplink screen shot is:
1001 +)))
903 903  
904 904  [[image:1654160691922-496.png]]
905 905  
906 906  
907 -* **Downlink Payload:**
1006 +* (((
1007 +**Downlink Payload:**
1008 +)))
908 908  
1010 +(((
909 909  **0x09 aa bb** same as AT+CMDEAR=aa,bb
1012 +)))
910 910  
911 911  
912 912  
1016 +
913 913  ==== **Set Serial Communication Parameters** ====
914 914  
1019 +(((
915 915  Set the Rs485 serial communication parameters:
1021 +)))
916 916  
917 -* **AT Command:**
1023 +* (((
1024 +**AT Command:**
1025 +)))
918 918  
1027 +(((
919 919  Set Baud Rate:
1029 +)))
920 920  
921 921  (% class="box infomessage" %)
922 922  (((
1033 +(((
923 923  **AT+BAUDR=9600**    ~/~/ Options: (1200,2400,4800,14400,19200,115200)
924 924  )))
1036 +)))
925 925  
1038 +(((
926 926  Set UART Parity
1040 +)))
927 927  
928 928  (% class="box infomessage" %)
929 929  (((
1044 +(((
930 930  **AT+PARITY=0**    ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity
931 931  )))
1047 +)))
932 932  
1049 +(((
933 933  Set STOPBIT
1051 +)))
934 934  
935 935  (% class="box infomessage" %)
936 936  (((
1055 +(((
937 937  **AT+STOPBIT=0**    ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits
938 938  )))
1058 +)))
939 939  
1060 +(((
1061 +
1062 +)))
940 940  
941 -* **Downlink Payload:**
1064 +* (((
1065 +**Downlink Payload:**
1066 +)))
942 942  
1068 +(((
943 943  **A7 01 aa bb**: Same  AT+BAUDR=hex(aa bb)*100
1070 +)))
944 944  
1072 +(((
945 945  **Example:**
1074 +)))
946 946  
947 -* A7 01 00 60   same as AT+BAUDR=9600
948 -* 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 +)))
949 949  
1083 +(((
950 950  A7 02 aa: Same as  AT+PARITY=aa  (aa value: 00 , 01 or 02)
1085 +)))
951 951  
1087 +(((
952 952  A7 03 aa: Same as  AT+STOPBIT=aa  (aa value: 00 , 01 or 02)
1089 +)))
953 953  
954 954  
1092 +
1093 +
955 955  == 3.6 Listening mode for RS485 network ==
956 956  
1096 +(((
957 957  This feature support since firmware v1.4
1098 +)))
958 958  
1100 +(((
959 959  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 +)))
960 960  
961 961  [[image:image-20220602171200-8.png||height="567" width="1007"]]
962 962  
1106 +(((
963 963  To enable the listening mode, use can run the command AT+RXMODE.
1108 +)))
964 964  
1110 +(((
1111 +
1112 +)))
965 965  
966 -(% border="1" style="background-color:#ffffcc; width:500px" %)
967 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function**
968 -|(% 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.
969 -|(% 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
970 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings.
971 -|(% 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 +)))
972 972  
1141 +(((
973 973  **Downlink Command:**
1143 +)))
974 974  
1145 +(((
975 975  **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc)
1147 +)))
976 976  
1149 +(((
1150 +
1151 +)))
977 977  
1153 +(((
978 978  **Example**:
1155 +)))
979 979  
1157 +(((
980 980  The RS485-LN is set to AT+RXMODE=2,1000
1159 +)))
981 981  
1161 +(((
982 982  There is a two Modbus commands in the RS485 network as below:
1163 +)))
983 983  
1165 +(((
984 984  The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b
1167 +)))
985 985  
1169 +(((
986 986  And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33
1171 +)))
987 987  
1173 +(((
988 988  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 +)))
989 989  
1177 +(((
990 990  [[image:image-20220602171200-9.png]]
1179 +)))
991 991  
1181 +(((
1182 +
1183 +)))
992 992  
1185 +(((
1186 +(((
993 993  (% 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 +)))
994 994  
995 995  
996 996  == 3.7 Buttons ==
997 997  
998 998  
999 -(% border="1" style="background-color:#f7faff; width:500px" %)
1000 -|=**Button**|=(% style="width: 1420px;" %)**Feature**
1001 -|**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**
1002 -|**RST**|(% style="width:1420px" %)Reboot RS485
1003 -|**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"]]
1004 1004  
1201 +
1005 1005  == 3.8 LEDs ==
1006 1006  
1007 -(% border="1" style="background-color:#f7faff; width:500px" %)
1008 -|=**LEDs**|=**Feature**
1204 +
1205 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %)
1206 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature**
1009 1009  |**PWR**|Always on if there is power
1010 -|**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.
1011 1011  
1210 +
1012 1012  = 4. Case Study =
1013 1013  
1014 1014  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]]
... ... @@ -1018,19 +1018,26 @@
1018 1018  
1019 1019  == 5.1 Access AT Command ==
1020 1020  
1220 +(((
1021 1021  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 +)))
1022 1022  
1023 1023  [[image:1654162355560-817.png]]
1024 1024  
1025 1025  
1227 +(((
1026 1026  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 +)))
1027 1027  
1028 1028  [[image:1654162368066-342.png]]
1029 1029  
1030 1030  
1234 +(((
1031 1031  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 +)))
1032 1032  
1033 1033  
1239 +
1034 1034  == 5.2 Common AT Command Sequence ==
1035 1035  
1036 1036  === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) ===
... ... @@ -1053,7 +1053,9 @@
1053 1053  )))
1054 1054  
1055 1055  
1262 +(((
1056 1056  If device already joined network:
1264 +)))
1057 1057  
1058 1058  (% class="box infomessage" %)
1059 1059  (((
... ... @@ -1092,10 +1092,12 @@
1092 1092  
1093 1093  (% style="color:red" %)**Note:**
1094 1094  
1303 +(((
1095 1095  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1096 1096  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1097 1097  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.
1098 1098  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 +)))
1099 1099  
1100 1100  [[image:1654162478620-421.png]]
1101 1101  
... ... @@ -1104,25 +1104,45 @@
1104 1104  
1105 1105  == 6.1 How to upgrade the image? ==
1106 1106  
1317 +(((
1107 1107  The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to:
1319 +)))
1108 1108  
1109 -* Support new features
1110 -* For bug fix
1111 -* Change LoRaWAN bands.
1321 +* (((
1322 +Support new features
1323 +)))
1324 +* (((
1325 +For bug fix
1326 +)))
1327 +* (((
1328 +Change LoRaWAN bands.
1329 +)))
1112 1112  
1331 +(((
1113 1113  Below shows the hardware connection for how to upload an image to RS485-LN:
1333 +)))
1114 1114  
1115 1115  [[image:1654162535040-878.png]]
1116 1116  
1337 +(((
1117 1117  **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 +)))
1118 1118  
1341 +(((
1119 1119  **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]].
1343 +)))
1120 1120  
1345 +(((
1121 1121  **Step3: **Open flashloader; choose the correct COM port to update.
1347 +)))
1122 1122  
1123 1123  (((
1350 +(((
1351 +(((
1124 1124  (% 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.
1125 1125  )))
1354 +)))
1355 +)))
1126 1126  
1127 1127  
1128 1128  [[image:image-20220602175818-12.png]]
... ... @@ -1185,7 +1185,6 @@
1185 1185  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1186 1186  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1187 1187  
1188 -
1189 1189  = 9.Packing Info =
1190 1190  
1191 1191  
... ... @@ -1202,7 +1202,6 @@
1202 1202  * Package Size / pcs : 14.5 x 8 x 5 cm
1203 1203  * Weight / pcs : 170g
1204 1204  
1205 -
1206 1206  = 10. FCC Caution for RS485LN-US915 =
1207 1207  
1208 1208  (((

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