Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Bei Jinggeng on 2025/01/16 11:36
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... ... @@ -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) ... ... @@ -104,6 +104,7 @@ 104 104 * Support Interrupt uplink (Since hardware version v1.2) 105 105 106 106 109 + 107 107 == 1.4 Applications == 108 108 109 109 * Smart Buildings & Home Automation ... ... @@ -114,6 +114,7 @@ 114 114 * Smart Factory 115 115 116 116 120 + 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 ((( 242 +((( 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 ))) 245 +))) 240 240 241 241 ((( 248 +((( 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 v1.1 250 +))) 243 243 244 244 245 245 ))) ... ... @@ -320,11 +320,17 @@ 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" %)((( 331 +((( 323 323 This command is used to configure the RS485/TTL devices; they won’t be used during sampling. 333 +))) 324 324 335 +((( 325 325 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx, 337 +))) 326 326 339 +((( 327 327 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command 341 +))) 328 328 )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m 329 329 330 330 ... ... @@ -704,64 +704,126 @@ 704 704 705 705 ==== **Set RS485 Sampling Commands** ==== 706 706 721 +((( 707 707 AT+COMMANDx or AT+DATACUTx 723 +))) 708 708 725 +((( 709 709 These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]]. 727 +))) 710 710 729 +((( 730 + 731 +))) 711 711 712 -* **AT Command:** 733 +* ((( 734 +**AT Command:** 735 +))) 713 713 714 714 (% class="box infomessage" %) 715 715 ((( 739 +((( 716 716 **AT+COMMANDx: Configure RS485 read command to sensor.** 717 717 ))) 742 +))) 718 718 719 719 (% class="box infomessage" %) 720 720 ((( 746 +((( 721 721 **AT+DATACUTx: Configure how to handle return from RS485 devices.** 722 722 ))) 749 +))) 723 723 751 +((( 752 + 753 +))) 724 724 725 -* **Downlink Payload:** 755 +* ((( 756 +**Downlink Payload:** 757 +))) 726 726 759 +((( 727 727 **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 761 +))) 728 728 763 +((( 729 729 (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 765 +))) 730 730 767 +((( 731 731 Format: AF MM NN LL XX XX XX XX YY 769 +))) 732 732 771 +((( 733 733 Where: 773 +))) 734 734 735 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 736 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 737 -* LL: The length of AT+COMMAND or AT+DATACUT command 738 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command 739 -* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command. 775 +* ((( 776 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 777 +))) 778 +* ((( 779 +NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 780 +))) 781 +* ((( 782 +LL: The length of AT+COMMAND or AT+DATACUT command 783 +))) 784 +* ((( 785 +XX XX XX XX: AT+COMMAND or AT+DATACUT command 786 +))) 787 +* ((( 788 +YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command. 789 +))) 740 740 791 +((( 741 741 **Example:** 793 +))) 742 742 795 +((( 743 743 (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1 797 +))) 744 744 799 +((( 745 745 (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10** 801 +))) 746 746 803 +((( 747 747 (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10** 805 +))) 748 748 749 749 750 750 809 + 751 751 ==== **Fast command to handle MODBUS device** ==== 752 752 812 +((( 753 753 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]]. 814 +))) 754 754 816 +((( 755 755 This command is valid since v1.3 firmware version 818 +))) 756 756 820 +((( 757 757 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. 822 +))) 758 758 824 +((( 825 + 826 +))) 759 759 828 +((( 760 760 **Example:** 830 +))) 761 761 762 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 763 -* 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. 764 -* 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 +* ((( 833 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 834 +))) 835 +* ((( 836 +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. 837 +))) 838 +* ((( 839 +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. 840 +))) 765 765 766 766 [[image:image-20220602165351-6.png]] 767 767 ... ... @@ -769,201 +769,379 @@ 769 769 770 770 771 771 848 + 772 772 ==== **RS485 command timeout** ==== 773 773 851 +((( 774 774 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. 853 +))) 775 775 855 +((( 776 776 Default value: 0, range: 0 ~~ 65 seconds 857 +))) 777 777 778 -* **AT Command:** 859 +* ((( 860 +**AT Command:** 861 +))) 779 779 780 780 (% class="box infomessage" %) 781 781 ((( 865 +((( 782 782 **AT+CMDDLaa=hex(bb cc)*1000** 783 783 ))) 868 +))) 784 784 870 +((( 785 785 **Example:** 872 +))) 786 786 874 +((( 787 787 **AT+CMDDL1=1000** to send the open time to 1000ms 876 +))) 788 788 878 +((( 879 + 880 +))) 789 789 790 -* **Downlink Payload:** 882 +* ((( 883 +**Downlink Payload:** 884 +))) 791 791 886 +((( 792 792 **0x AA aa bb cc** 888 +))) 793 793 890 +((( 794 794 Same as: AT+CMDDLaa=hex(bb cc)*1000 892 +))) 795 795 894 +((( 796 796 **Example:** 896 +))) 797 797 898 +((( 798 798 0xAA 01 00 01 ~-~-> Same as **AT+CMDDL1=1000 ms** 900 +))) 799 799 800 800 801 801 904 + 802 802 ==== **Uplink payload mode** ==== 803 803 907 +((( 804 804 Define to use one uplink or multiple uplinks for the sampling. 909 +))) 805 805 911 +((( 806 806 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]] 913 +))) 807 807 808 -* **AT Command:** 915 +* ((( 916 +**AT Command:** 917 +))) 809 809 810 810 (% class="box infomessage" %) 811 811 ((( 921 +((( 812 812 **AT+DATAUP=0** 813 813 ))) 924 +))) 814 814 815 815 (% class="box infomessage" %) 816 816 ((( 928 +((( 817 817 **AT+DATAUP=1** 818 818 ))) 931 +))) 819 819 933 +((( 934 + 935 +))) 820 820 821 -* **Downlink Payload:** 937 +* ((( 938 +**Downlink Payload:** 939 +))) 822 822 941 +((( 823 823 **0xAD 00** **~-~->** Same as AT+DATAUP=0 943 +))) 824 824 945 +((( 825 825 **0xAD 01** **~-~->** Same as AT+DATAUP=1 947 +))) 826 826 827 827 828 828 951 + 829 829 ==== **Manually trigger an Uplink** ==== 830 830 954 +((( 831 831 Ask device to send an uplink immediately. 956 +))) 832 832 833 -* **AT Command:** 958 +* ((( 959 +**AT Command:** 960 +))) 834 834 962 +((( 835 835 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same. 964 +))) 836 836 966 +((( 967 + 968 +))) 837 837 838 -* **Downlink Payload:** 970 +* ((( 971 +**Downlink Payload:** 972 +))) 839 839 974 +((( 840 840 **0x08 FF**, RS485-LN will immediately send an uplink. 976 +))) 841 841 842 842 843 843 980 + 844 844 ==== **Clear RS485 Command** ==== 845 845 983 +((( 846 846 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 985 +))) 847 847 848 -* **AT Command:** 987 +* ((( 988 +**AT Command:** 989 +))) 849 849 991 +((( 850 850 **AT+CMDEAR=mm,nn** mm: start position of erase ,nn: stop position of erase 993 +))) 851 851 995 +((( 852 852 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 997 +))) 853 853 999 +((( 854 854 Example screen shot after clear all RS485 commands. 1001 +))) 855 855 1003 +((( 1004 + 1005 +))) 856 856 1007 +((( 857 857 The uplink screen shot is: 1009 +))) 858 858 859 859 [[image:1654160691922-496.png]] 860 860 861 861 862 -* **Downlink Payload:** 1014 +* ((( 1015 +**Downlink Payload:** 1016 +))) 863 863 1018 +((( 864 864 **0x09 aa bb** same as AT+CMDEAR=aa,bb 1020 +))) 865 865 866 866 867 867 1024 + 868 868 ==== **Set Serial Communication Parameters** ==== 869 869 1027 +((( 870 870 Set the Rs485 serial communication parameters: 1029 +))) 871 871 872 -* **AT Command:** 1031 +* ((( 1032 +**AT Command:** 1033 +))) 873 873 1035 +((( 874 874 Set Baud Rate: 1037 +))) 875 875 876 876 (% class="box infomessage" %) 877 877 ((( 1041 +((( 878 878 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 879 879 ))) 1044 +))) 880 880 1046 +((( 881 881 Set UART Parity 1048 +))) 882 882 883 883 (% class="box infomessage" %) 884 884 ((( 1052 +((( 885 885 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 886 886 ))) 1055 +))) 887 887 1057 +((( 888 888 Set STOPBIT 1059 +))) 889 889 890 890 (% class="box infomessage" %) 891 891 ((( 1063 +((( 892 892 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 893 893 ))) 1066 +))) 894 894 1068 +((( 1069 + 1070 +))) 895 895 896 -* **Downlink Payload:** 1072 +* ((( 1073 +**Downlink Payload:** 1074 +))) 897 897 1076 +((( 898 898 **A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1078 +))) 899 899 1080 +((( 900 900 **Example:** 1082 +))) 901 901 902 -* A7 01 00 60 same as AT+BAUDR=9600 903 -* A7 01 04 80 same as AT+BAUDR=115200 1084 +* ((( 1085 +A7 01 00 60 same as AT+BAUDR=9600 1086 +))) 1087 +* ((( 1088 +A7 01 04 80 same as AT+BAUDR=115200 1089 +))) 904 904 1091 +((( 905 905 A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1093 +))) 906 906 1095 +((( 907 907 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1097 +))) 908 908 909 909 1100 + 1101 + 910 910 == 3.6 Listening mode for RS485 network == 911 911 1104 +((( 912 912 This feature support since firmware v1.4 1106 +))) 913 913 1108 +((( 914 914 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. 1110 +))) 915 915 916 916 [[image:image-20220602171200-8.png||height="567" width="1007"]] 917 917 1114 +((( 918 918 To enable the listening mode, use can run the command AT+RXMODE. 1116 +))) 919 919 1118 +((( 1119 + 1120 +))) 920 920 921 -(% border="1" style="background-color:#ffffcc; width:500px" %) 922 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 923 -|(% 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. 924 -|(% 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 925 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 926 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 ~| cc) 1122 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %) 1123 +|=(% style="width: 100px;" %)((( 1124 +**Command example** 1125 +)))|=(% style="width: 400px;" %)((( 1126 +**Function** 1127 +))) 1128 +|(% style="width:100px" %)((( 1129 +AT+RXMODE=1,10 1130 +)))|(% style="width:400px" %)((( 1131 +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. 1132 +))) 1133 +|(% style="width:100px" %)((( 1134 +AT+RXMODE=2,500 1135 +)))|(% style="width:400px" %)((( 1136 +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 1137 +))) 1138 +|(% style="width:100px" %)((( 1139 +AT+RXMODE=0,0 1140 +)))|(% style="width:400px" %)((( 1141 +Disable listening mode. This is the default settings. 1142 +))) 1143 +|(% style="width:100px" %)((( 1144 + 1145 +)))|(% style="width:400px" %)((( 1146 +A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 | cc) 1147 +))) 927 927 1149 +((( 928 928 **Downlink Command:** 1151 +))) 929 929 1153 +((( 930 930 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1155 +))) 931 931 1157 +((( 1158 + 1159 +))) 932 932 1161 +((( 933 933 **Example**: 1163 +))) 934 934 1165 +((( 935 935 The RS485-LN is set to AT+RXMODE=2,1000 1167 +))) 936 936 1169 +((( 937 937 There is a two Modbus commands in the RS485 network as below: 1171 +))) 938 938 1173 +((( 939 939 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1175 +))) 940 940 1177 +((( 941 941 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1179 +))) 942 942 1181 +((( 943 943 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 1183 +))) 944 944 1185 +((( 945 945 [[image:image-20220602171200-9.png]] 1187 +))) 946 946 1189 +((( 1190 + 1191 +))) 947 947 1193 +((( 1194 +((( 948 948 (% 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. 1196 +))) 1197 +))) 949 949 950 950 951 951 == 3.7 Buttons == 952 952 953 953 954 -(% border="1" style="background-color:#f7faff; width: 500px" %)955 -|=**Button**|=(% style="width: 1 420px;" %)**Feature**956 -|**ACT**|(% style="width:1 420px" %)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**957 -|**RST**|(% style="width:1 420px" %)Reboot RS485958 -|**PRO**|(% style="width:1 420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]1203 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %) 1204 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature** 1205 +|(% 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** 1206 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485 1207 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 959 959 1209 + 1210 + 960 960 == 3.8 LEDs == 961 961 962 -(% border="1" style="background-color:#f7faff; width:500px" %) 963 -|=**LEDs**|=**Feature** 1213 + 1214 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %) 1215 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature** 964 964 |**PWR**|Always on if there is power 965 -|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink 1217 +|**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. 966 966 1219 + 1220 + 967 967 = 4. Case Study = 968 968 969 969 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]] ... ... @@ -973,19 +973,26 @@ 973 973 974 974 == 5.1 Access AT Command == 975 975 1230 +((( 976 976 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. 1232 +))) 977 977 978 978 [[image:1654162355560-817.png]] 979 979 980 980 1237 +((( 981 981 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: 1239 +))) 982 982 983 983 [[image:1654162368066-342.png]] 984 984 985 985 1244 +((( 986 986 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/]] 1246 +))) 987 987 988 988 1249 + 989 989 == 5.2 Common AT Command Sequence == 990 990 991 991 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === ... ... @@ -1008,7 +1008,9 @@ 1008 1008 ))) 1009 1009 1010 1010 1272 +((( 1011 1011 If device already joined network: 1274 +))) 1012 1012 1013 1013 (% class="box infomessage" %) 1014 1014 ((( ... ... @@ -1047,10 +1047,12 @@ 1047 1047 1048 1048 (% style="color:red" %)**Note:** 1049 1049 1313 +((( 1050 1050 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server. 1051 1051 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting. 1052 1052 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. 1053 1053 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 1318 +))) 1054 1054 1055 1055 [[image:1654162478620-421.png]] 1056 1056 ... ... @@ -1059,25 +1059,45 @@ 1059 1059 1060 1060 == 6.1 How to upgrade the image? == 1061 1061 1327 +((( 1062 1062 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to: 1329 +))) 1063 1063 1064 -* Support new features 1065 -* For bug fix 1066 -* Change LoRaWAN bands. 1331 +* ((( 1332 +Support new features 1333 +))) 1334 +* ((( 1335 +For bug fix 1336 +))) 1337 +* ((( 1338 +Change LoRaWAN bands. 1339 +))) 1067 1067 1341 +((( 1068 1068 Below shows the hardware connection for how to upload an image to RS485-LN: 1343 +))) 1069 1069 1070 1070 [[image:1654162535040-878.png]] 1071 1071 1347 +((( 1072 1072 **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]]. 1349 +))) 1073 1073 1351 +((( 1074 1074 **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]. 1353 +))) 1075 1075 1355 +((( 1076 1076 **Step3: **Open flashloader; choose the correct COM port to update. 1357 +))) 1077 1077 1078 1078 ((( 1360 +((( 1361 +((( 1079 1079 (% 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. 1080 1080 ))) 1364 +))) 1365 +))) 1081 1081 1082 1082 1083 1083 [[image:image-20220602175818-12.png]] ... ... @@ -1140,7 +1140,6 @@ 1140 1140 * (% style="color:blue" %)**RU864**(%%): frequency bands RU864 1141 1141 * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865 1142 1142 1143 - 1144 1144 = 9.Packing Info = 1145 1145 1146 1146 ... ... @@ -1157,7 +1157,6 @@ 1157 1157 * Package Size / pcs : 14.5 x 8 x 5 cm 1158 1158 * Weight / pcs : 170g 1159 1159 1160 - 1161 1161 = 10. FCC Caution for RS485LN-US915 = 1162 1162 1163 1163 (((