Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
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... ... @@ -6,18 +6,12 @@ 6 6 **RS485-LN – RS485 to LoRaWAN Converter User Manual** 7 7 8 8 9 - 10 - 11 11 **Table of Contents:** 12 12 13 -{{toc/}} 14 14 15 15 16 16 17 17 18 - 19 - 20 - 21 21 = 1.Introduction = 22 22 23 23 == 1.1 What is RS485-LN RS485 to LoRaWAN Converter == ... ... @@ -24,33 +24,23 @@ 24 24 25 25 ((( 26 26 ((( 27 -((( 28 28 The Dragino RS485-LN is a (% style="color:blue" %)**RS485 to LoRaWAN Converter**(%%). It converts the RS485 signal into LoRaWAN wireless signal which simplify the IoT installation and reduce the installation/maintaining cost. 29 29 ))) 30 -))) 31 31 32 32 ((( 33 -((( 34 34 RS485-LN allows user to (% style="color:blue" %)**monitor / control RS485 devices**(%%) and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, smartphone detection, building automation, and so on. 35 35 ))) 36 -))) 37 37 38 38 ((( 39 -((( 40 40 (% style="color:blue" %)**For data uplink**(%%), RS485-LN sends user-defined commands to RS485 devices and gets the return from the RS485 devices. RS485-LN will process these returns according to user-define rules to get the final payload and upload to LoRaWAN server. 41 41 ))) 42 -))) 43 43 44 44 ((( 45 -((( 46 46 (% style="color:blue" %)**For data downlink**(%%), RS485-LN runs in LoRaWAN Class C. When there downlink commands from LoRaWAN server, RS485-LN will forward the commands from LoRaWAN server to RS485 devices. 47 -))) 48 48 49 -((( 50 50 (% style="color:blue" %)**Demo Dashboard for RS485-LN**(%%) connect to two energy meters: [[https:~~/~~/app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a>>url:https://app.datacake.de/dashboard/d/58844a26-378d-4c5a-aaf5-b5b5b153447a]] 51 51 ))) 52 52 ))) 53 -))) 54 54 55 55 [[image:1653267211009-519.png||height="419" width="724"]] 56 56 ... ... @@ -90,7 +90,7 @@ 90 90 * Preamble detection. 91 91 * 127 dB Dynamic Range RSSI. 92 92 * Automatic RF Sense and CAD with ultra-fast AFC. 93 -* Packet engine up to 256 bytes with CRC 77 +* Packet engine up to 256 bytes with CRC. 94 94 95 95 == 1.3 Features == 96 96 ... ... @@ -103,8 +103,6 @@ 103 103 * Support Modbus protocol 104 104 * Support Interrupt uplink (Since hardware version v1.2) 105 105 106 - 107 - 108 108 == 1.4 Applications == 109 109 110 110 * Smart Buildings & Home Automation ... ... @@ -114,8 +114,6 @@ 114 114 * Smart Cities 115 115 * Smart Factory 116 116 117 - 118 - 119 119 == 1.5 Firmware Change log == 120 120 121 121 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]] ... ... @@ -155,9 +155,7 @@ 155 155 == 3.1 How it works? == 156 156 157 157 ((( 158 -((( 159 159 The RS485-LN is configured as LoRaWAN OTAA Class C mode by default. It has OTAA keys to join network. To connect a local LoRaWAN network, user just need to input the OTAA keys in the network server and power on the RS485-LN. It will auto join the network via OTAA. 160 -))) 161 161 162 162 163 163 ))) ... ... @@ -181,7 +181,7 @@ 181 181 [[image:1653268227651-549.png||height="592" width="720"]] 182 182 183 183 ((( 184 -The LG308 is already set to connect to [[TTN V3 network >>path: https://www.thethingsnetwork.org/]]. So what we need to now is only configure the TTN V3:162 +The LG308 is already set to connect to [[TTN V3 network >>path:eu1.cloud.thethings.network/]]. So what we need to now is only configure the TTN V3: 185 185 ))) 186 186 187 187 ((( ... ... @@ -233,7 +233,7 @@ 233 233 234 234 ((( 235 235 ((( 236 -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.214 +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>>path:#AT_COMMAND]] or LoRaWAN Downlink Command to configure what commands RS485-LN should send for each sampling and how to handle the return from RS485 devices. 237 237 ))) 238 238 239 239 ((( ... ... @@ -438,7 +438,6 @@ 438 438 439 439 (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA** 440 440 441 - 442 442 1. PAYVER: Defined by AT+PAYVER 443 443 1. PAYLOAD COUNT: Total how many uplinks of this sampling. 444 444 1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT) ... ... @@ -518,7 +518,7 @@ 518 518 519 519 There are two kinds of Commands: 520 520 521 -* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]] 498 +* (% style="color:#4f81bd" %)**Common Commands**(%%): They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]] 522 522 523 523 * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN. User can see these commands below: 524 524 ... ... @@ -538,8 +538,8 @@ 538 538 539 539 === 3.5.3 Sensor related commands === 540 540 518 +==== ==== 541 541 542 - 543 543 ==== **RS485 Debug Command** ==== 544 544 545 545 This command is used to configure the RS485 devices; they won’t be used during sampling. ... ... @@ -608,6 +608,7 @@ 608 608 **AT+PAYVER: Set PAYVER field = 1** 609 609 ))) 610 610 588 + 611 611 * **Downlink Payload:** 612 612 613 613 **0xAE 01** ~-~-> Set PAYVER field = 0x01 ... ... @@ -618,9 +618,9 @@ 618 618 619 619 ==== **Set RS485 Sampling Commands** ==== 620 620 621 -AT+COMMANDx orAT+DATACUTx599 +AT+COMMANDx, AT+DATACUTx and AT+SEARCHx 622 622 623 -These three commands are used to configure how the RS485-L Npolling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]].601 +These three commands are used to configure how the RS485-BL polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]]. 624 624 625 625 626 626 * **AT Command:** ... ... @@ -635,7 +635,12 @@ 635 635 **AT+DATACUTx: Configure how to handle return from RS485 devices.** 636 636 ))) 637 637 616 +(% class="box infomessage" %) 617 +((( 618 +**AT+SEARCHx: Configure search command** 619 +))) 638 638 621 + 639 639 * **Downlink Payload:** 640 640 641 641 **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx. ... ... @@ -650,7 +650,7 @@ 650 650 * NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 651 651 * LL: The length of AT+COMMAND or AT+DATACUT command 652 652 * XX XX XX XX: AT+COMMAND or AT+DATACUT command 653 -* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-L Nwill execute an uplink after got this command.636 +* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-BL will execute an uplink after got this command. 654 654 655 655 **Example:** 656 656 ... ... @@ -661,7 +661,17 @@ 661 661 (% 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** 662 662 663 663 647 +**0xAB** downlink command can be used for set AT+SEARCHx 664 664 649 +**Example:** **AB aa 01 03 xx xx xx** (03 here means there are total 3 bytes after 03) So 650 + 651 +* AB aa 01 03 xx xx xx same as AT+SEARCHaa=1,xx xx xx 652 +* AB aa 02 03 xx xx xx 02 yy yy(03 means there are 3 bytes after 03, they are xx xx xx;02 means there are 2 bytes after 02, they are yy yy) so the commands 653 + 654 +**AB aa 02 03 xx xx xx 02 yy yy** same as **AT+SEARCHaa=2,xx xx xx+yy yy** 655 + 656 + 657 + 665 665 ==== **Fast command to handle MODBUS device** ==== 666 666 667 667 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]]. ... ... @@ -668,32 +668,45 @@ 668 668 669 669 This command is valid since v1.3 firmware version 670 670 671 -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. 672 672 665 +**AT+MBFUN has only two value:** 673 673 667 +* **AT+MBFUN=1**: Enable Modbus reading. And get response base on the MODBUS return 668 + 669 +AT+MBFUN=1, device 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. 670 + 671 +* **AT+MBFUN=0**: Disable Modbus fast reading. 672 + 674 674 **Example:** 675 675 676 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN.675 +* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). 677 677 * 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. 678 678 * 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. 679 679 680 -[[image: image-20220602165351-6.png]]679 +[[image:1654133913295-597.png]] 681 681 682 -[[image:image-20220602165351-7.png]] 683 683 682 +[[image:1654133954153-643.png]] 684 684 685 685 685 +* **Downlink Commands:** 686 + 687 +**A9 aa** ~-~-> Same as AT+MBFUN=aa 688 + 689 + 690 + 686 686 ==== **RS485 command timeout** ==== 687 687 688 -Some Modbus device has slow action to send replies. This command is used to configure the RS485-L Nto use longer time to wait for their action.693 +Some Modbus device has slow action to send replies. This command is used to configure the RS485-BL to use longer time to wait for their action. 689 689 690 -Default value: 0, range: 0 ~~ 65 seconds695 +Default value: 0, range: 0 ~~ 5 seconds 691 691 697 + 692 692 * **AT Command:** 693 693 694 694 (% class="box infomessage" %) 695 695 ((( 696 -**AT+CMDDLaa=hex(bb cc)* 1000**702 +**AT+CMDDLaa=hex(bb cc)** 697 697 ))) 698 698 699 699 **Example:** ... ... @@ -703,13 +703,13 @@ 703 703 704 704 * **Downlink Payload:** 705 705 706 - **0x AA aa bb cc**712 +0x AA aa bb cc 707 707 708 -Same as: AT+CMDDLaa=hex(bb cc) *1000714 +Same as: AT+CMDDLaa=hex(bb cc) 709 709 710 710 **Example:** 711 711 712 - 0xAA 01 0 001~-~-> Same as **AT+CMDDL1=1000 ms**718 + **0xAA 01 03 E8** ~-~-> Same as **AT+CMDDL1=1000 ms** 713 713 714 714 715 715 ... ... @@ -744,14 +744,9 @@ 744 744 745 745 Ask device to send an uplink immediately. 746 746 747 -* **AT Command:** 748 - 749 -No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same. 750 - 751 - 752 752 * **Downlink Payload:** 753 753 754 -**0x08 FF**, RS485-L Nwill immediately send an uplink.755 +**0x08 FF**, RS485-BL will immediately send an uplink. 755 755 756 756 757 757 ... ... @@ -759,18 +759,17 @@ 759 759 760 760 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 761 761 763 + 762 762 * **AT Command:** 763 763 764 -**AT+CMDEAR=mm,nn** 766 +(% style="color:#037691" %)**AT+CMDEAR=mm,nn** (%%) mm: start position of erase ,nn: stop position of erase Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 765 765 766 -Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 767 - 768 768 Example screen shot after clear all RS485 commands. 769 769 770 770 771 771 The uplink screen shot is: 772 772 773 -[[image:16541 60691922-496.png]]773 +[[image:1654134704555-320.png]] 774 774 775 775 776 776 * **Downlink Payload:** ... ... @@ -821,317 +821,22 @@ 821 821 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 822 822 823 823 824 -== 3.6 Listening mode for RS485 network == 825 825 826 - Thisfeaturesupportsincefirmware v1.4825 +==== **Control output power duration** ==== 827 827 828 - RS485-LNsupportslistening mode, itcanlistentheRS485 network packets and send themvia LoRaWANuplink.Belowis thestructure.The blue arrowshows theRS485 networkpacketsto RS485-LN.827 +User can set the output power duration before each sampling. 829 829 830 - [[image:image-20220602171200-8.png||height="567" width="1007"]]829 +* **AT Command:** 831 831 832 - To enablethe listening mode, use can run the command AT+RXMODE.831 +**Example:** 833 833 833 +**AT+3V3T=1000** ~/~/ 3V3 output power will open 1s before each sampling. 834 834 835 -(% border="1" style="background-color:#ffffcc; width:500px" %) 836 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 837 -|(% 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. 838 -|(% 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 839 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 840 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 ~| cc) 835 +**AT+5VT=1000** ~/~/ +5V output power will open 1s before each sampling. 841 841 842 -**Downlink Command:** 843 843 844 -* *0xA6aa bb cc**same asAT+RXMODE=aa,(bb<<8| cc)838 +* **LoRaWAN Downlink Command:** 845 845 840 +**07 01 aa bb** Same as AT+5VT=(aa bb) 846 846 847 -**Example**: 848 - 849 -The RS485-LN is set to AT+RXMODE=2,1000 850 - 851 -There is a two Modbus commands in the RS485 network as below: 852 - 853 -The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 854 - 855 -And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 856 - 857 -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 33 858 - 859 -[[image:image-20220602171200-9.png]] 860 - 861 - 862 -(% 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. 863 - 864 - 865 -== 3.7 Buttons == 866 - 867 - 868 -(% border="1" style="background-color:#f7faff; width:500px" %) 869 -|=**Button**|=(% style="width: 1420px;" %)**Feature** 870 -|**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** 871 -|**RST**|(% style="width:1420px" %)Reboot RS485 872 -|**PRO**|(% style="width:1420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 873 - 874 - 875 -== 3.8 LEDs == 876 - 877 -(% border="1" style="background-color:#f7faff; width:500px" %) 878 -|=**LEDs**|=**Feature** 879 -|**PWR**|Always on if there is power 880 -|**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. 881 - 882 - 883 -= 4. Case Study = 884 - 885 -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]] 886 - 887 - 888 -= 5. Use AT Command = 889 - 890 -== 5.1 Access AT Command == 891 - 892 -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. 893 - 894 -[[image:1654162355560-817.png]] 895 - 896 - 897 -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: 898 - 899 -[[image:1654162368066-342.png]] 900 - 901 - 902 -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/]] 903 - 904 - 905 -== 5.2 Common AT Command Sequence == 906 - 907 -=== 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === 908 - 909 -If device has not joined network yet: 910 - 911 -(% class="box infomessage" %) 912 -((( 913 -**AT+FDR** 914 -))) 915 - 916 -(% class="box infomessage" %) 917 -((( 918 -**AT+NJM=0** 919 -))) 920 - 921 -(% class="box infomessage" %) 922 -((( 923 -**ATZ** 924 -))) 925 - 926 - 927 -If device already joined network: 928 - 929 -(% class="box infomessage" %) 930 -((( 931 -**AT+NJM=0** 932 -))) 933 - 934 -(% class="box infomessage" %) 935 -((( 936 -**ATZ** 937 -))) 938 - 939 - 940 -=== 5.5.2 Single-channel ABP mode (Use with LG01/LG02) === 941 - 942 - 943 -(% style="background-color:#dcdcdc" %)**AT+FDR** (%%) Reset Parameters to Factory Default, Keys Reserve 944 - 945 -(% style="background-color:#dcdcdc" %)**AT+NJM=0 **(%%)Set to ABP mode 946 - 947 -(% style="background-color:#dcdcdc" %)**AT+ADR=0** (%%)Set the Adaptive Data Rate Off 948 - 949 -(% style="background-color:#dcdcdc" %)**AT+DR=5** (%%)Set Data Rate 950 - 951 -(% style="background-color:#dcdcdc" %)**AT+TDC=60000** (%%) Set transmit interval to 60 seconds 952 - 953 -(% style="background-color:#dcdcdc" %)**AT+CHS=868400000**(%%) Set transmit frequency to 868.4Mhz 954 - 955 -(% style="background-color:#dcdcdc" %)**AT+RX2FQ=868400000** (%%) Set RX2Frequency to 868.4Mhz (according to the result from server) 956 - 957 -(% style="background-color:#dcdcdc" %)**AT+RX2DR=5** (%%) Set RX2DR to match the downlink DR from server. see below 958 - 959 -(% style="background-color:#dcdcdc" %)**AT+DADDR=26** (%%) 01 1A F1 Set Device Address to 26 01 1A F1, this ID can be found in the LoRa Server portal. 960 - 961 -(% style="background-color:#dcdcdc" %)**ATZ** (%%) Reset MCU 962 - 963 - 964 -(% style="color:red" %)**Note:** 965 - 966 -(% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server. 967 -2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting. 968 -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. 969 -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 5 970 - 971 -[[image:1654162478620-421.png]] 972 - 973 - 974 -= 6. FAQ = 975 - 976 -== 6.1 How to upgrade the image? == 977 - 978 -The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to: 979 - 980 -* Support new features 981 -* For bug fix 982 -* Change LoRaWAN bands. 983 - 984 -Below shows the hardware connection for how to upload an image to RS485-LN: 985 - 986 -[[image:1654162535040-878.png]] 987 - 988 -**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]]. 989 - 990 -**Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]. 991 - 992 -**Step3: **Open flashloader; choose the correct COM port to update. 993 - 994 -((( 995 -(% 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. 996 -))) 997 - 998 - 999 -[[image:image-20220602175818-12.png]] 1000 - 1001 - 1002 -[[image:image-20220602175848-13.png]] 1003 - 1004 - 1005 -[[image:image-20220602175912-14.png]] 1006 - 1007 - 1008 -**Notice**: In case user has lost the program cable. User can hand made one from a 3.5mm cable. The pin mapping is: 1009 - 1010 -[[image:image-20220602175638-10.png]] 1011 - 1012 - 1013 -== 6.2 How to change the LoRa Frequency Bands/Region? == 1014 - 1015 -User can follow the introduction for [[how to upgrade image>>||anchor="H6.1Howtoupgradetheimage3F"]]. When download the images, choose the required image file for download. 1016 - 1017 - 1018 -== 6.3 How many RS485-Slave can RS485-BL connects? == 1019 - 1020 -The RS485-BL can support max 32 RS485 devices. Each uplink command of RS485-BL can support max 16 different RS485 command. So RS485-BL can support max 16 RS485 devices pre-program in the device for uplink. For other devices no pre-program, user can use the [[downlink message (type code 0xA8) to poll their info>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]]. 1021 - 1022 - 1023 -== 6.4 Compatible question to ChirpStack and TTI LoRaWAN server ? == 1024 - 1025 -When user need to use with ChirpStack or TTI. Please set AT+RPL=4. 1026 - 1027 -Detail info check this link: [[Set Packet Receiving Response Level>>doc:Main.End Device AT Commands and Downlink Command.WebHome||anchor="H7.23SetPacketReceivingResponseLevel"]] 1028 - 1029 - 1030 -= 7. Trouble Shooting = 1031 - 1032 -== 7.1 Downlink doesn’t work, how to solve it? == 1033 - 1034 -Please see this link for debug: [[LoRaWAN Communication Debug>>doc:Main.LoRaWAN Communication Debug.WebHome]] 1035 - 1036 - 1037 -== 7.2 Why I can’t join TTN V3 in US915 /AU915 bands? == 1038 - 1039 -It might about the channels mapping. Please see for detail: [[Notice of Frequency band>>doc:Main.LoRaWAN Communication Debug.WebHome||anchor="H2.NoticeofUS9152FCN4702FAU915Frequencyband"]] 1040 - 1041 - 1042 -= 8. Order Info = 1043 - 1044 -(% style="color:blue" %)**Part Number: RS485-LN-XXX** 1045 - 1046 -(% style="color:blue" %)**XXX:** 1047 - 1048 -* (% style="color:blue" %)**EU433**(%%): frequency bands EU433 1049 -* (% style="color:blue" %)**EU868**(%%): frequency bands EU868 1050 -* (% style="color:blue" %)**KR920**(%%): frequency bands KR920 1051 -* (% style="color:blue" %)**CN470**(%%): frequency bands CN470 1052 -* (% style="color:blue" %)**AS923**(%%): frequency bands AS923 1053 -* (% style="color:blue" %)**AU915**(%%): frequency bands AU915 1054 -* (% style="color:blue" %)**US915**(%%): frequency bands US915 1055 -* (% style="color:blue" %)**IN865**(%%): frequency bands IN865 1056 -* (% style="color:blue" %)**RU864**(%%): frequency bands RU864 1057 -* (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865 1058 - 1059 - 1060 - 1061 -= 9.Packing Info = 1062 - 1063 - 1064 -**Package Includes**: 1065 - 1066 -* RS485-LN x 1 1067 -* Stick Antenna for LoRa RF part x 1 1068 -* Program cable x 1 1069 - 1070 -**Dimension and weight**: 1071 - 1072 -* Device Size: 13.5 x 7 x 3 cm 1073 -* Device Weight: 105g 1074 -* Package Size / pcs : 14.5 x 8 x 5 cm 1075 -* Weight / pcs : 170g 1076 - 1077 - 1078 - 1079 -= 10. FCC Caution for RS485LN-US915 = 1080 - 1081 -((( 1082 -Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 1083 -))) 1084 - 1085 -((( 1086 -This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. 1087 -))) 1088 - 1089 -((( 1090 - 1091 -))) 1092 - 1093 -((( 1094 -**IMPORTANT NOTE:** 1095 -))) 1096 - 1097 -((( 1098 -**Note: **This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: 1099 -))) 1100 - 1101 -((( 1102 -—Reorient or relocate the receiving antenna. 1103 -))) 1104 - 1105 -((( 1106 -—Increase the separation between the equipment and receiver. 1107 -))) 1108 - 1109 -((( 1110 -—Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 1111 -))) 1112 - 1113 -((( 1114 -—Consult the dealer or an experienced radio/TV technician for help. 1115 -))) 1116 - 1117 -((( 1118 - 1119 -))) 1120 - 1121 -((( 1122 -**FCC Radiation Exposure Statement:** 1123 -))) 1124 - 1125 -((( 1126 -This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body. 1127 -))) 1128 - 1129 - 1130 -= 11. Support = 1131 - 1132 -* ((( 1133 -Support is provided Monday to Friday, from 09:00 to 18:00 GMT+8. Due to different timezones we cannot offer live support. However, your questions will be answered as soon as possible in the before-mentioned schedule. 1134 -))) 1135 -* ((( 1136 -Provide as much information as possible regarding your enquiry (product models, accurately describe your problem and steps to replicate it etc) and send a mail to [[support@dragino.com>>url:file:///D:/市场资料/说明书/LoRa/LT系列/support@dragino.com]]. 1137 -))) 842 +**07 02 aa bb** Same as AT+3V3T=(aa bb)
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