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 ))) ... ... @@ -669,6 +669,7 @@ 669 669 670 670 671 671 677 + 672 672 ==== **Set Payload version** ==== 673 673 674 674 ((( ... ... @@ -703,64 +703,126 @@ 703 703 704 704 ==== **Set RS485 Sampling Commands** ==== 705 705 712 +((( 706 706 AT+COMMANDx or AT+DATACUTx 714 +))) 707 707 716 +((( 708 708 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 +))) 709 709 720 +((( 721 + 722 +))) 710 710 711 -* **AT Command:** 724 +* ((( 725 +**AT Command:** 726 +))) 712 712 713 713 (% class="box infomessage" %) 714 714 ((( 730 +((( 715 715 **AT+COMMANDx: Configure RS485 read command to sensor.** 716 716 ))) 733 +))) 717 717 718 718 (% class="box infomessage" %) 719 719 ((( 737 +((( 720 720 **AT+DATACUTx: Configure how to handle return from RS485 devices.** 721 721 ))) 740 +))) 722 722 742 +((( 743 + 744 +))) 723 723 724 -* **Downlink Payload:** 746 +* ((( 747 +**Downlink Payload:** 748 +))) 725 725 750 +((( 726 726 **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 752 +))) 727 727 754 +((( 728 728 (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 756 +))) 729 729 758 +((( 730 730 Format: AF MM NN LL XX XX XX XX YY 760 +))) 731 731 762 +((( 732 732 Where: 764 +))) 733 733 734 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 735 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 736 -* LL: The length of AT+COMMAND or AT+DATACUT command 737 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command 738 -* 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 +))) 739 739 782 +((( 740 740 **Example:** 784 +))) 741 741 786 +((( 742 742 (% 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 +))) 743 743 790 +((( 744 744 (% 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 +))) 745 745 794 +((( 746 746 (% 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 +))) 747 747 748 748 749 749 800 + 750 750 ==== **Fast command to handle MODBUS device** ==== 751 751 803 +((( 752 752 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 +))) 753 753 807 +((( 754 754 This command is valid since v1.3 firmware version 809 +))) 755 755 811 +((( 756 756 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 +))) 757 757 815 +((( 816 + 817 +))) 758 758 819 +((( 759 759 **Example:** 821 +))) 760 760 761 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 762 -* 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. 763 -* 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 +))) 764 764 765 765 [[image:image-20220602165351-6.png]] 766 766 ... ... @@ -768,200 +768,372 @@ 768 768 769 769 770 770 839 + 771 771 ==== **RS485 command timeout** ==== 772 772 842 +((( 773 773 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 +))) 774 774 846 +((( 775 775 Default value: 0, range: 0 ~~ 65 seconds 848 +))) 776 776 777 -* **AT Command:** 850 +* ((( 851 +**AT Command:** 852 +))) 778 778 779 779 (% class="box infomessage" %) 780 780 ((( 856 +((( 781 781 **AT+CMDDLaa=hex(bb cc)*1000** 782 782 ))) 859 +))) 783 783 861 +((( 784 784 **Example:** 863 +))) 785 785 865 +((( 786 786 **AT+CMDDL1=1000** to send the open time to 1000ms 867 +))) 787 787 869 +((( 870 + 871 +))) 788 788 789 -* **Downlink Payload:** 873 +* ((( 874 +**Downlink Payload:** 875 +))) 790 790 877 +((( 791 791 **0x AA aa bb cc** 879 +))) 792 792 881 +((( 793 793 Same as: AT+CMDDLaa=hex(bb cc)*1000 883 +))) 794 794 885 +((( 795 795 **Example:** 887 +))) 796 796 889 +((( 797 797 0xAA 01 00 01 ~-~-> Same as **AT+CMDDL1=1000 ms** 891 +))) 798 798 799 799 800 800 895 + 801 801 ==== **Uplink payload mode** ==== 802 802 898 +((( 803 803 Define to use one uplink or multiple uplinks for the sampling. 900 +))) 804 804 902 +((( 805 805 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]] 904 +))) 806 806 807 -* **AT Command:** 906 +* ((( 907 +**AT Command:** 908 +))) 808 808 809 809 (% class="box infomessage" %) 810 810 ((( 912 +((( 811 811 **AT+DATAUP=0** 812 812 ))) 915 +))) 813 813 814 814 (% class="box infomessage" %) 815 815 ((( 919 +((( 816 816 **AT+DATAUP=1** 817 817 ))) 922 +))) 818 818 924 +((( 925 + 926 +))) 819 819 820 -* **Downlink Payload:** 928 +* ((( 929 +**Downlink Payload:** 930 +))) 821 821 932 +((( 822 822 **0xAD 00** **~-~->** Same as AT+DATAUP=0 934 +))) 823 823 936 +((( 824 824 **0xAD 01** **~-~->** Same as AT+DATAUP=1 938 +))) 825 825 826 826 827 827 942 + 828 828 ==== **Manually trigger an Uplink** ==== 829 829 945 +((( 830 830 Ask device to send an uplink immediately. 947 +))) 831 831 832 -* **AT Command:** 949 +* ((( 950 +**AT Command:** 951 +))) 833 833 953 +((( 834 834 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same. 955 +))) 835 835 957 +((( 958 + 959 +))) 836 836 837 -* **Downlink Payload:** 961 +* ((( 962 +**Downlink Payload:** 963 +))) 838 838 965 +((( 839 839 **0x08 FF**, RS485-LN will immediately send an uplink. 967 +))) 840 840 841 841 842 842 971 + 843 843 ==== **Clear RS485 Command** ==== 844 844 974 +((( 845 845 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 976 +))) 846 846 847 -* **AT Command:** 978 +* ((( 979 +**AT Command:** 980 +))) 848 848 982 +((( 849 849 **AT+CMDEAR=mm,nn** mm: start position of erase ,nn: stop position of erase 984 +))) 850 850 986 +((( 851 851 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 988 +))) 852 852 990 +((( 853 853 Example screen shot after clear all RS485 commands. 992 +))) 854 854 994 +((( 995 + 996 +))) 855 855 998 +((( 856 856 The uplink screen shot is: 1000 +))) 857 857 858 858 [[image:1654160691922-496.png]] 859 859 860 860 861 -* **Downlink Payload:** 1005 +* ((( 1006 +**Downlink Payload:** 1007 +))) 862 862 1009 +((( 863 863 **0x09 aa bb** same as AT+CMDEAR=aa,bb 1011 +))) 864 864 865 865 866 866 1015 + 867 867 ==== **Set Serial Communication Parameters** ==== 868 868 1018 +((( 869 869 Set the Rs485 serial communication parameters: 1020 +))) 870 870 871 -* **AT Command:** 1022 +* ((( 1023 +**AT Command:** 1024 +))) 872 872 1026 +((( 873 873 Set Baud Rate: 1028 +))) 874 874 875 875 (% class="box infomessage" %) 876 876 ((( 1032 +((( 877 877 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 878 878 ))) 1035 +))) 879 879 1037 +((( 880 880 Set UART Parity 1039 +))) 881 881 882 882 (% class="box infomessage" %) 883 883 ((( 1043 +((( 884 884 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 885 885 ))) 1046 +))) 886 886 1048 +((( 887 887 Set STOPBIT 1050 +))) 888 888 889 889 (% class="box infomessage" %) 890 890 ((( 1054 +((( 891 891 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 892 892 ))) 1057 +))) 893 893 1059 +((( 1060 + 1061 +))) 894 894 895 -* **Downlink Payload:** 1063 +* ((( 1064 +**Downlink Payload:** 1065 +))) 896 896 1067 +((( 897 897 **A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1069 +))) 898 898 1071 +((( 899 899 **Example:** 1073 +))) 900 900 901 -* A7 01 00 60 same as AT+BAUDR=9600 902 -* 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 +))) 903 903 1082 +((( 904 904 A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1084 +))) 905 905 1086 +((( 906 906 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1088 +))) 907 907 908 908 1091 + 1092 + 909 909 == 3.6 Listening mode for RS485 network == 910 910 1095 +((( 911 911 This feature support since firmware v1.4 1097 +))) 912 912 1099 +((( 913 913 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 +))) 914 914 915 915 [[image:image-20220602171200-8.png||height="567" width="1007"]] 916 916 1105 +((( 917 917 To enable the listening mode, use can run the command AT+RXMODE. 1107 +))) 918 918 1109 +((( 1110 + 1111 +))) 919 919 920 -(% border="1" style="background-color:#ffffcc; width:500px" %) 921 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 922 -|(% 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. 923 -|(% 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 924 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 925 -|(% 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 +))) 926 926 1140 +((( 927 927 **Downlink Command:** 1142 +))) 928 928 1144 +((( 929 929 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1146 +))) 930 930 1148 +((( 1149 + 1150 +))) 931 931 1152 +((( 932 932 **Example**: 1154 +))) 933 933 1156 +((( 934 934 The RS485-LN is set to AT+RXMODE=2,1000 1158 +))) 935 935 1160 +((( 936 936 There is a two Modbus commands in the RS485 network as below: 1162 +))) 937 937 1164 +((( 938 938 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1166 +))) 939 939 1168 +((( 940 940 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1170 +))) 941 941 1172 +((( 942 942 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 +))) 943 943 1176 +((( 944 944 [[image:image-20220602171200-9.png]] 1178 +))) 945 945 1180 +((( 1181 + 1182 +))) 946 946 1184 +((( 947 947 (% 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 +))) 948 948 949 949 950 950 == 3.7 Buttons == 951 951 952 952 953 -(% border="1" style="background-color:#f7faff; width: 500px" %)954 -|=**Button**|=(% style="width: 1420px;" %)**Feature**955 -|**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**956 -|**RST**|(% style="width: 1420px" %)Reboot RS485957 -|**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"]] 958 958 959 959 == 3.8 LEDs == 960 960 961 -(% border="1" style="background-color:#f7faff; width:500px" %) 962 -|=**LEDs**|=**Feature** 1200 + 1201 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %) 1202 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature** 963 963 |**PWR**|Always on if there is power 964 -|**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. 965 965 966 966 = 4. Case Study = 967 967 ... ... @@ -972,19 +972,26 @@ 972 972 973 973 == 5.1 Access AT Command == 974 974 1215 +((( 975 975 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 +))) 976 976 977 977 [[image:1654162355560-817.png]] 978 978 979 979 1222 +((( 980 980 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 +))) 981 981 982 982 [[image:1654162368066-342.png]] 983 983 984 984 1229 +((( 985 985 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 +))) 986 986 987 987 1234 + 988 988 == 5.2 Common AT Command Sequence == 989 989 990 990 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === ... ... @@ -1058,13 +1058,23 @@ 1058 1058 1059 1059 == 6.1 How to upgrade the image? == 1060 1060 1308 +((( 1061 1061 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to: 1310 +))) 1062 1062 1063 -* Support new features 1064 -* For bug fix 1065 -* Change LoRaWAN bands. 1312 +* ((( 1313 +Support new features 1314 +))) 1315 +* ((( 1316 +For bug fix 1317 +))) 1318 +* ((( 1319 +Change LoRaWAN bands. 1320 +))) 1066 1066 1322 +((( 1067 1067 Below shows the hardware connection for how to upload an image to RS485-LN: 1324 +))) 1068 1068 1069 1069 [[image:1654162535040-878.png]] 1070 1070 ... ... @@ -1075,8 +1075,10 @@ 1075 1075 **Step3: **Open flashloader; choose the correct COM port to update. 1076 1076 1077 1077 ((( 1335 +((( 1078 1078 (% 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. 1079 1079 ))) 1338 +))) 1080 1080 1081 1081 1082 1082 [[image:image-20220602175818-12.png]] ... ... @@ -1139,7 +1139,6 @@ 1139 1139 * (% style="color:blue" %)**RU864**(%%): frequency bands RU864 1140 1140 * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865 1141 1141 1142 - 1143 1143 = 9.Packing Info = 1144 1144 1145 1145 ... ... @@ -1156,7 +1156,6 @@ 1156 1156 * Package Size / pcs : 14.5 x 8 x 5 cm 1157 1157 * Weight / pcs : 170g 1158 1158 1159 - 1160 1160 = 10. FCC Caution for RS485LN-US915 = 1161 1161 1162 1162 (((