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 +92,7 @@ 92 92 * Automatic RF Sense and CAD with ultra-fast AFC. 93 93 * Packet engine up to 256 bytes with CRC 94 94 95 + 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 ((( 239 +((( 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 ))) 242 +))) 240 240 241 241 ((( 245 +((( 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 v1.1 247 +))) 243 243 244 244 245 245 ))) ... ... @@ -704,64 +704,126 @@ 704 704 705 705 ==== **Set RS485 Sampling Commands** ==== 706 706 712 +((( 707 707 AT+COMMANDx or AT+DATACUTx 714 +))) 708 708 716 +((( 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"]]. 718 +))) 710 710 720 +((( 721 + 722 +))) 711 711 712 -* **AT Command:** 724 +* ((( 725 +**AT Command:** 726 +))) 713 713 714 714 (% class="box infomessage" %) 715 715 ((( 730 +((( 716 716 **AT+COMMANDx: Configure RS485 read command to sensor.** 717 717 ))) 733 +))) 718 718 719 719 (% class="box infomessage" %) 720 720 ((( 737 +((( 721 721 **AT+DATACUTx: Configure how to handle return from RS485 devices.** 722 722 ))) 740 +))) 723 723 742 +((( 743 + 744 +))) 724 724 725 -* **Downlink Payload:** 746 +* ((( 747 +**Downlink Payload:** 748 +))) 726 726 750 +((( 727 727 **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 752 +))) 728 728 754 +((( 729 729 (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 756 +))) 730 730 758 +((( 731 731 Format: AF MM NN LL XX XX XX XX YY 760 +))) 732 732 762 +((( 733 733 Where: 764 +))) 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. 766 +* ((( 767 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 768 +))) 769 +* ((( 770 +NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 771 +))) 772 +* ((( 773 +LL: The length of AT+COMMAND or AT+DATACUT command 774 +))) 775 +* ((( 776 +XX XX XX XX: AT+COMMAND or AT+DATACUT command 777 +))) 778 +* ((( 779 +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. 780 +))) 740 740 782 +((( 741 741 **Example:** 784 +))) 742 742 786 +((( 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 01,1 788 +))) 744 744 790 +((( 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** 792 +))) 746 746 794 +((( 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** 796 +))) 748 748 749 749 750 750 800 + 751 751 ==== **Fast command to handle MODBUS device** ==== 752 752 803 +((( 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]]. 805 +))) 754 754 807 +((( 755 755 This command is valid since v1.3 firmware version 809 +))) 756 756 811 +((( 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. 813 +))) 758 758 815 +((( 816 + 817 +))) 759 759 819 +((( 760 760 **Example:** 821 +))) 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. 823 +* ((( 824 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 825 +))) 826 +* ((( 827 +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. 828 +))) 829 +* ((( 830 +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. 831 +))) 765 765 766 766 [[image:image-20220602165351-6.png]] 767 767 ... ... @@ -769,200 +769,372 @@ 769 769 770 770 771 771 839 + 772 772 ==== **RS485 command timeout** ==== 773 773 842 +((( 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. 844 +))) 775 775 846 +((( 776 776 Default value: 0, range: 0 ~~ 65 seconds 848 +))) 777 777 778 -* **AT Command:** 850 +* ((( 851 +**AT Command:** 852 +))) 779 779 780 780 (% class="box infomessage" %) 781 781 ((( 856 +((( 782 782 **AT+CMDDLaa=hex(bb cc)*1000** 783 783 ))) 859 +))) 784 784 861 +((( 785 785 **Example:** 863 +))) 786 786 865 +((( 787 787 **AT+CMDDL1=1000** to send the open time to 1000ms 867 +))) 788 788 869 +((( 870 + 871 +))) 789 789 790 -* **Downlink Payload:** 873 +* ((( 874 +**Downlink Payload:** 875 +))) 791 791 877 +((( 792 792 **0x AA aa bb cc** 879 +))) 793 793 881 +((( 794 794 Same as: AT+CMDDLaa=hex(bb cc)*1000 883 +))) 795 795 885 +((( 796 796 **Example:** 887 +))) 797 797 889 +((( 798 798 0xAA 01 00 01 ~-~-> Same as **AT+CMDDL1=1000 ms** 891 +))) 799 799 800 800 801 801 895 + 802 802 ==== **Uplink payload mode** ==== 803 803 898 +((( 804 804 Define to use one uplink or multiple uplinks for the sampling. 900 +))) 805 805 902 +((( 806 806 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]] 904 +))) 807 807 808 -* **AT Command:** 906 +* ((( 907 +**AT Command:** 908 +))) 809 809 810 810 (% class="box infomessage" %) 811 811 ((( 912 +((( 812 812 **AT+DATAUP=0** 813 813 ))) 915 +))) 814 814 815 815 (% class="box infomessage" %) 816 816 ((( 919 +((( 817 817 **AT+DATAUP=1** 818 818 ))) 922 +))) 819 819 924 +((( 925 + 926 +))) 820 820 821 -* **Downlink Payload:** 928 +* ((( 929 +**Downlink Payload:** 930 +))) 822 822 932 +((( 823 823 **0xAD 00** **~-~->** Same as AT+DATAUP=0 934 +))) 824 824 936 +((( 825 825 **0xAD 01** **~-~->** Same as AT+DATAUP=1 938 +))) 826 826 827 827 828 828 942 + 829 829 ==== **Manually trigger an Uplink** ==== 830 830 945 +((( 831 831 Ask device to send an uplink immediately. 947 +))) 832 832 833 -* **AT Command:** 949 +* ((( 950 +**AT Command:** 951 +))) 834 834 953 +((( 835 835 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same. 955 +))) 836 836 957 +((( 958 + 959 +))) 837 837 838 -* **Downlink Payload:** 961 +* ((( 962 +**Downlink Payload:** 963 +))) 839 839 965 +((( 840 840 **0x08 FF**, RS485-LN will immediately send an uplink. 967 +))) 841 841 842 842 843 843 971 + 844 844 ==== **Clear RS485 Command** ==== 845 845 974 +((( 846 846 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 976 +))) 847 847 848 -* **AT Command:** 978 +* ((( 979 +**AT Command:** 980 +))) 849 849 982 +((( 850 850 **AT+CMDEAR=mm,nn** mm: start position of erase ,nn: stop position of erase 984 +))) 851 851 986 +((( 852 852 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 988 +))) 853 853 990 +((( 854 854 Example screen shot after clear all RS485 commands. 992 +))) 855 855 994 +((( 995 + 996 +))) 856 856 998 +((( 857 857 The uplink screen shot is: 1000 +))) 858 858 859 859 [[image:1654160691922-496.png]] 860 860 861 861 862 -* **Downlink Payload:** 1005 +* ((( 1006 +**Downlink Payload:** 1007 +))) 863 863 1009 +((( 864 864 **0x09 aa bb** same as AT+CMDEAR=aa,bb 1011 +))) 865 865 866 866 867 867 1015 + 868 868 ==== **Set Serial Communication Parameters** ==== 869 869 1018 +((( 870 870 Set the Rs485 serial communication parameters: 1020 +))) 871 871 872 -* **AT Command:** 1022 +* ((( 1023 +**AT Command:** 1024 +))) 873 873 1026 +((( 874 874 Set Baud Rate: 1028 +))) 875 875 876 876 (% class="box infomessage" %) 877 877 ((( 1032 +((( 878 878 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 879 879 ))) 1035 +))) 880 880 1037 +((( 881 881 Set UART Parity 1039 +))) 882 882 883 883 (% class="box infomessage" %) 884 884 ((( 1043 +((( 885 885 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 886 886 ))) 1046 +))) 887 887 1048 +((( 888 888 Set STOPBIT 1050 +))) 889 889 890 890 (% class="box infomessage" %) 891 891 ((( 1054 +((( 892 892 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 893 893 ))) 1057 +))) 894 894 1059 +((( 1060 + 1061 +))) 895 895 896 -* **Downlink Payload:** 1063 +* ((( 1064 +**Downlink Payload:** 1065 +))) 897 897 1067 +((( 898 898 **A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1069 +))) 899 899 1071 +((( 900 900 **Example:** 1073 +))) 901 901 902 -* A7 01 00 60 same as AT+BAUDR=9600 903 -* A7 01 04 80 same as AT+BAUDR=115200 1075 +* ((( 1076 +A7 01 00 60 same as AT+BAUDR=9600 1077 +))) 1078 +* ((( 1079 +A7 01 04 80 same as AT+BAUDR=115200 1080 +))) 904 904 1082 +((( 905 905 A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1084 +))) 906 906 1086 +((( 907 907 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1088 +))) 908 908 909 909 1091 + 1092 + 910 910 == 3.6 Listening mode for RS485 network == 911 911 1095 +((( 912 912 This feature support since firmware v1.4 1097 +))) 913 913 1099 +((( 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. 1101 +))) 915 915 916 916 [[image:image-20220602171200-8.png||height="567" width="1007"]] 917 917 1105 +((( 918 918 To enable the listening mode, use can run the command AT+RXMODE. 1107 +))) 919 919 1109 +((( 1110 + 1111 +))) 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) 1113 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %) 1114 +|=(% style="width: 100px;" %)((( 1115 +**Command example** 1116 +)))|=(% style="width: 400px;" %)((( 1117 +**Function** 1118 +))) 1119 +|(% style="width:100px" %)((( 1120 +AT+RXMODE=1,10 1121 +)))|(% style="width:400px" %)((( 1122 +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. 1123 +))) 1124 +|(% style="width:100px" %)((( 1125 +AT+RXMODE=2,500 1126 +)))|(% style="width:400px" %)((( 1127 +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 1128 +))) 1129 +|(% style="width:100px" %)((( 1130 +AT+RXMODE=0,0 1131 +)))|(% style="width:400px" %)((( 1132 +Disable listening mode. This is the default settings. 1133 +))) 1134 +|(% style="width:100px" %)((( 1135 + 1136 +)))|(% style="width:400px" %)((( 1137 +A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 | cc) 1138 +))) 927 927 1140 +((( 928 928 **Downlink Command:** 1142 +))) 929 929 1144 +((( 930 930 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1146 +))) 931 931 1148 +((( 1149 + 1150 +))) 932 932 1152 +((( 933 933 **Example**: 1154 +))) 934 934 1156 +((( 935 935 The RS485-LN is set to AT+RXMODE=2,1000 1158 +))) 936 936 1160 +((( 937 937 There is a two Modbus commands in the RS485 network as below: 1162 +))) 938 938 1164 +((( 939 939 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1166 +))) 940 940 1168 +((( 941 941 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1170 +))) 942 942 1172 +((( 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 1174 +))) 944 944 1176 +((( 945 945 [[image:image-20220602171200-9.png]] 1178 +))) 946 946 1180 +((( 1181 + 1182 +))) 947 947 1184 +((( 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. 1186 +))) 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: 1420px;" %)**Feature**956 -|**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**957 -|**RST**|(% style="width: 1420px" %)Reboot RS485958 -|**PRO**|(% style="width: 1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]1192 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:400px" %) 1193 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 350px;" %)**Feature** 1194 +|(% 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** 1195 +|(% style="width:50px" %)**RST**|(% style="width:350px" %)Reboot RS485 1196 +|(% style="width:50px" %)**PRO**|(% style="width:350px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 959 959 960 960 == 3.8 LEDs == 961 961 962 -(% border="1" style="background-color:#f7faff; width:500px" %) 963 -|=**LEDs**|=**Feature** 1200 + 1201 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %) 1202 +|=(% 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 1204 +|**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. 966 966 967 967 = 4. Case Study = 968 968 ... ... @@ -973,19 +973,26 @@ 973 973 974 974 == 5.1 Access AT Command == 975 975 1215 +((( 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. 1217 +))) 977 977 978 978 [[image:1654162355560-817.png]] 979 979 980 980 1222 +((( 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: 1224 +))) 982 982 983 983 [[image:1654162368066-342.png]] 984 984 985 985 1229 +((( 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/]] 1231 +))) 987 987 988 988 1234 + 989 989 == 5.2 Common AT Command Sequence == 990 990 991 991 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === ... ... @@ -1059,13 +1059,23 @@ 1059 1059 1060 1060 == 6.1 How to upgrade the image? == 1061 1061 1308 +((( 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: 1310 +))) 1063 1063 1064 -* Support new features 1065 -* For bug fix 1066 -* Change LoRaWAN bands. 1312 +* ((( 1313 +Support new features 1314 +))) 1315 +* ((( 1316 +For bug fix 1317 +))) 1318 +* ((( 1319 +Change LoRaWAN bands. 1320 +))) 1067 1067 1322 +((( 1068 1068 Below shows the hardware connection for how to upload an image to RS485-LN: 1324 +))) 1069 1069 1070 1070 [[image:1654162535040-878.png]] 1071 1071 ... ... @@ -1076,8 +1076,10 @@ 1076 1076 **Step3: **Open flashloader; choose the correct COM port to update. 1077 1077 1078 1078 ((( 1335 +((( 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 ))) 1338 +))) 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 (((