Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Karry Zhuang on 2025/03/06 16:34
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... ... @@ -24,23 +24,33 @@ 24 24 25 25 ((( 26 26 ((( 27 +((( 27 27 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. 28 28 ))) 30 +))) 29 29 30 30 ((( 33 +((( 31 31 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. 32 32 ))) 36 +))) 33 33 34 34 ((( 39 +((( 35 35 (% 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. 36 36 ))) 42 +))) 37 37 38 38 ((( 45 +((( 39 39 (% 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 +))) 40 40 49 +((( 41 41 (% 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]] 42 42 ))) 43 43 ))) 53 +))) 44 44 45 45 [[image:1653267211009-519.png||height="419" width="724"]] 46 46 ... ... @@ -114,9 +114,13 @@ 114 114 115 115 ((( 116 116 ((( 127 +((( 117 117 v1.2: Add External Interrupt Pin. 129 +))) 118 118 131 +((( 119 119 v1.0: Release 133 +))) 120 120 121 121 122 122 ))) ... ... @@ -144,7 +144,9 @@ 144 144 == 3.1 How it works? == 145 145 146 146 ((( 161 +((( 147 147 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. 163 +))) 148 148 149 149 150 150 ))) ... ... @@ -220,11 +220,15 @@ 220 220 221 221 ((( 222 222 ((( 239 +((( 223 223 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. 224 224 ))) 242 +))) 225 225 226 226 ((( 245 +((( 227 227 (% 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 +))) 228 228 229 229 230 230 ))) ... ... @@ -234,19 +234,19 @@ 234 234 235 235 To use RS485-LN to read data from RS485 sensors, connect the RS485-LN A/B traces to the sensors. And user need to make sure RS485-LN use the match UART setting to access the sensors. The related commands for UART settings are: 236 236 237 -(% border="1" style="background-color:#ffffcc; color:green; width: 782px" %)238 -|(% style="width:1 28px" %)(((257 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 258 +|=(% style="width: 110px;" %)((( 239 239 **AT Commands** 240 -)))|(% style="width: 305px" %)(((260 +)))|=(% style="width: 190px;" %)((( 241 241 **Description** 242 -)))|(% style="width: 346px" %)(((262 +)))|=(% style="width: 190px;" %)((( 243 243 **Example** 244 244 ))) 245 -|(% style="width:1 28px" %)(((265 +|(% style="width:110px" %)((( 246 246 AT+BAUDR 247 -)))|(% style="width: 305px" %)(((267 +)))|(% style="width:190px" %)((( 248 248 Set the baud rate (for RS485 connection). Default Value is: 9600. 249 -)))|(% style="width: 346px" %)(((269 +)))|(% style="width:190px" %)((( 250 250 ((( 251 251 AT+BAUDR=9600 252 252 ))) ... ... @@ -255,11 +255,11 @@ 255 255 Options: (1200,2400,4800,14400,19200,115200) 256 256 ))) 257 257 ))) 258 -|(% style="width:1 28px" %)(((278 +|(% style="width:110px" %)((( 259 259 AT+PARITY 260 -)))|(% style="width: 305px" %)(((280 +)))|(% style="width:190px" %)((( 261 261 Set UART parity (for RS485 connection) 262 -)))|(% style="width: 346px" %)(((282 +)))|(% style="width:190px" %)((( 263 263 ((( 264 264 AT+PARITY=0 265 265 ))) ... ... @@ -268,9 +268,9 @@ 268 268 Option: 0: no parity, 1: odd parity, 2: even parity 269 269 ))) 270 270 ))) 271 -|(% style="width:1 28px" %)(((291 +|(% style="width:110px" %)((( 272 272 AT+STOPBIT 273 -)))|(% style="width: 305px" %)(((293 +)))|(% style="width:190px" %)((( 274 274 ((( 275 275 Set serial stopbit (for RS485 connection) 276 276 ))) ... ... @@ -278,7 +278,7 @@ 278 278 ((( 279 279 280 280 ))) 281 -)))|(% style="width: 346px" %)(((301 +)))|(% style="width:190px" %)((( 282 282 ((( 283 283 AT+STOPBIT=0 for 1bit 284 284 ))) ... ... @@ -302,15 +302,15 @@ 302 302 ))) 303 303 ))) 304 304 305 -(% border="1" style="background-color:#ffffcc; color:green; width: 806px" %)306 -|**AT Commands**|(% style="width: 418px" %)**Description**|(% style="width:256px" %)**Example**307 -|AT+CFGDEV|(% style="width: 418px" %)(((325 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 326 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example** 327 +|AT+CFGDEV|(% style="width:110px" %)((( 308 308 This command is used to configure the RS485/TTL devices; they won’t be used during sampling. 309 309 310 310 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx, 311 311 312 312 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command 313 -)))|(% style="width: 256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m333 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m 314 314 315 315 316 316 ... ... @@ -359,8 +359,8 @@ 359 359 360 360 **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes. 361 361 362 -(% border="1" style="background-color:#4bacc6; color:white; width: 725px" %)363 -|(% style="width: 722px" %)(((382 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %) 383 +|(% style="width:510px" %)((( 364 364 **AT+DATACUTx=a,b,c** 365 365 366 366 * **a: length for the return of AT+COMMAND** ... ... @@ -486,33 +486,35 @@ 486 486 487 487 == 3.4 Uplink Payload == 488 488 489 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %) 490 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands** 491 -|Value|(% style="width:120px" %)((( 492 -Battery(mV) 493 493 494 - &510 +[[image:image-20220606110929-1.png]] 495 495 496 -Interrupt _Flag 497 -)))|(% style="width:116px" %)((( 498 -PAYLOAD_VER 499 - 500 - 501 -)))|(% style="width:386px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server. 502 - 503 503 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors. 504 504 505 505 506 506 == 3.5 Configure RS485-BL via AT or Downlink == 507 507 517 +((( 508 508 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands 519 +))) 509 509 521 +((( 510 510 There are two kinds of Commands: 523 +))) 511 511 512 -* (% 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]] 525 +* ((( 526 +(% 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]] 527 +))) 513 513 514 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN. User can see these commands below: 529 +* ((( 530 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN. User can see these commands below: 531 +))) 515 515 533 +((( 534 + 535 +))) 536 + 537 + 516 516 === 3.5.1 Common Commands === 517 517 518 518 They should be available for each of Dragino Sensors, 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]] ... ... @@ -531,142 +531,282 @@ 531 531 532 532 533 533 556 + 534 534 ==== **RS485 Debug Command** ==== 535 535 559 +((( 536 536 This command is used to configure the RS485 devices; they won’t be used during sampling. 561 +))) 537 537 538 -* **AT Command** 563 +* ((( 564 +**AT Command** 565 +))) 539 539 540 540 (% class="box infomessage" %) 541 541 ((( 569 +((( 542 542 **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m** 543 543 ))) 572 +))) 544 544 574 +((( 545 545 m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command 576 +))) 546 546 547 -* **Downlink Payload** 578 +* ((( 579 +**Downlink Payload** 580 +))) 548 548 582 +((( 549 549 Format: A8 MM NN XX XX XX XX YY 584 +))) 550 550 586 +((( 551 551 Where: 588 +))) 552 552 553 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC 554 -* NN: The length of RS485 command 555 -* XX XX XX XX: RS485 command total NN bytes 556 -* YY: How many bytes will be uplink from the return of this RS485 command, 557 -** if YY=0, RS485-LN will execute the downlink command without uplink; 558 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200 559 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200. 590 +* ((( 591 +MM: 1: add CRC-16/MODBUS ; 0: no CRC 592 +))) 593 +* ((( 594 +NN: The length of RS485 command 595 +))) 596 +* ((( 597 +XX XX XX XX: RS485 command total NN bytes 598 +))) 599 +* ((( 600 +((( 601 +YY: How many bytes will be uplink from the return of this RS485 command, 602 +))) 560 560 604 +* ((( 605 +if YY=0, RS485-LN will execute the downlink command without uplink; 606 +))) 607 +* ((( 608 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200 609 +))) 610 +* ((( 611 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200. 612 +))) 613 +))) 614 + 615 +((( 561 561 **Example 1** ~-~-> Configure without ask for uplink (YY=0) 617 +))) 562 562 619 +((( 563 563 To connect a Modbus Alarm with below commands. 621 +))) 564 564 565 -* The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually. 623 +* ((( 624 +The command to active alarm is: 0A 05 00 04 00 01 4C B0. Where 0A 05 00 04 00 01 is the Modbus command to read the register 00 40 where stored the DI status. The 4C B0 is the CRC-16/MODBUS which calculate manually. 625 +))) 566 566 567 -* The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually. 627 +* ((( 628 +The command to deactivate alarm is: 0A 05 00 04 00 00 8D 70. Where 0A 05 00 04 00 00 is the Modbus command to read the register 00 40 where stored the DI status. The 8D 70 is the CRC-16/MODBUS which calculate manually. 629 +))) 568 568 631 +((( 569 569 So if user want to use downlink command to control to RS485 Alarm, he can use: 633 +))) 570 570 635 +((( 571 571 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm 637 +))) 572 572 639 +((( 573 573 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm 641 +))) 574 574 643 +((( 575 575 A8 is type code and 01 means add CRC-16/MODBUS at the end, the 3^^rd^^ byte is 06, means the next 6 bytes are the command to be sent to the RS485 network, the final byte 00 means this command don’t need to acquire output. 645 +))) 576 576 647 +((( 648 + 649 +))) 577 577 651 +((( 578 578 **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**) 653 +))) 579 579 655 +((( 580 580 User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY** 657 +))) 581 581 659 +((( 660 + 661 +))) 582 582 663 +((( 583 583 RS485-LN got this downlink command and send (% style="color:#4f81bd" %)**0A 08 00 04 00 01 **(%%)to Modbus network. One of the RS485 sensor in the network send back Modbus reply **0A 08 00 04 00 00**. RS485-LN get this reply and combine with the original downlink command and uplink. The uplink message is: 665 +))) 584 584 667 +((( 585 585 **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00 **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00** 669 +))) 586 586 671 +((( 587 587 [[image:1654159460680-153.png]] 673 +))) 588 588 589 589 590 590 677 + 591 591 ==== **Set Payload version** ==== 592 592 680 +((( 593 593 This is the first byte of the uplink payload. RS485-BL can connect to different sensors. User can set the PAYVER field to tell server how to decode the current payload. 682 +))) 594 594 595 -* **AT Command:** 684 +* ((( 685 +**AT Command:** 686 +))) 596 596 597 597 (% class="box infomessage" %) 598 598 ((( 690 +((( 599 599 **AT+PAYVER: Set PAYVER field = 1** 600 600 ))) 693 +))) 601 601 602 -* **Downlink Payload:** 695 +* ((( 696 +**Downlink Payload:** 697 +))) 603 603 699 +((( 604 604 **0xAE 01** ~-~-> Set PAYVER field = 0x01 701 +))) 605 605 703 +((( 606 606 **0xAE 0F** ~-~-> Set PAYVER field = 0x0F 705 +))) 607 607 608 608 609 609 709 + 610 610 ==== **Set RS485 Sampling Commands** ==== 611 611 712 +((( 612 612 AT+COMMANDx or AT+DATACUTx 714 +))) 613 613 716 +((( 614 614 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 +))) 615 615 720 +((( 721 + 722 +))) 616 616 617 -* **AT Command:** 724 +* ((( 725 +**AT Command:** 726 +))) 618 618 619 619 (% class="box infomessage" %) 620 620 ((( 730 +((( 621 621 **AT+COMMANDx: Configure RS485 read command to sensor.** 622 622 ))) 733 +))) 623 623 624 624 (% class="box infomessage" %) 625 625 ((( 737 +((( 626 626 **AT+DATACUTx: Configure how to handle return from RS485 devices.** 627 627 ))) 740 +))) 628 628 742 +((( 743 + 744 +))) 629 629 630 -* **Downlink Payload:** 746 +* ((( 747 +**Downlink Payload:** 748 +))) 631 631 750 +((( 632 632 **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 752 +))) 633 633 754 +((( 634 634 (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 756 +))) 635 635 758 +((( 636 636 Format: AF MM NN LL XX XX XX XX YY 760 +))) 637 637 762 +((( 638 638 Where: 764 +))) 639 639 640 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 641 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 642 -* LL: The length of AT+COMMAND or AT+DATACUT command 643 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command 644 -* 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 +))) 645 645 782 +((( 646 646 **Example:** 784 +))) 647 647 786 +((( 648 648 (% 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 +))) 649 649 790 +((( 650 650 (% 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 +))) 651 651 794 +((( 652 652 (% 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 +))) 653 653 654 654 655 655 800 + 656 656 ==== **Fast command to handle MODBUS device** ==== 657 657 803 +((( 658 658 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 +))) 659 659 807 +((( 660 660 This command is valid since v1.3 firmware version 809 +))) 661 661 811 +((( 662 662 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 +))) 663 663 815 +((( 816 + 817 +))) 664 664 819 +((( 665 665 **Example:** 821 +))) 666 666 667 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 668 -* 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. 669 -* 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 +))) 670 670 671 671 [[image:image-20220602165351-6.png]] 672 672 ... ... @@ -674,203 +674,373 @@ 674 674 675 675 676 676 839 + 677 677 ==== **RS485 command timeout** ==== 678 678 842 +((( 679 679 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 +))) 680 680 846 +((( 681 681 Default value: 0, range: 0 ~~ 65 seconds 848 +))) 682 682 683 -* **AT Command:** 850 +* ((( 851 +**AT Command:** 852 +))) 684 684 685 685 (% class="box infomessage" %) 686 686 ((( 856 +((( 687 687 **AT+CMDDLaa=hex(bb cc)*1000** 688 688 ))) 859 +))) 689 689 861 +((( 690 690 **Example:** 863 +))) 691 691 865 +((( 692 692 **AT+CMDDL1=1000** to send the open time to 1000ms 867 +))) 693 693 869 +((( 870 + 871 +))) 694 694 695 -* **Downlink Payload:** 873 +* ((( 874 +**Downlink Payload:** 875 +))) 696 696 877 +((( 697 697 **0x AA aa bb cc** 879 +))) 698 698 881 +((( 699 699 Same as: AT+CMDDLaa=hex(bb cc)*1000 883 +))) 700 700 885 +((( 701 701 **Example:** 887 +))) 702 702 889 +((( 703 703 0xAA 01 00 01 ~-~-> Same as **AT+CMDDL1=1000 ms** 891 +))) 704 704 705 705 706 706 895 + 707 707 ==== **Uplink payload mode** ==== 708 708 898 +((( 709 709 Define to use one uplink or multiple uplinks for the sampling. 900 +))) 710 710 902 +((( 711 711 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]] 904 +))) 712 712 713 -* **AT Command:** 906 +* ((( 907 +**AT Command:** 908 +))) 714 714 715 715 (% class="box infomessage" %) 716 716 ((( 912 +((( 717 717 **AT+DATAUP=0** 718 718 ))) 915 +))) 719 719 720 720 (% class="box infomessage" %) 721 721 ((( 919 +((( 722 722 **AT+DATAUP=1** 723 723 ))) 922 +))) 724 724 924 +((( 925 + 926 +))) 725 725 726 -* **Downlink Payload:** 928 +* ((( 929 +**Downlink Payload:** 930 +))) 727 727 932 +((( 728 728 **0xAD 00** **~-~->** Same as AT+DATAUP=0 934 +))) 729 729 936 +((( 730 730 **0xAD 01** **~-~->** Same as AT+DATAUP=1 938 +))) 731 731 732 732 733 733 942 + 734 734 ==== **Manually trigger an Uplink** ==== 735 735 945 +((( 736 736 Ask device to send an uplink immediately. 947 +))) 737 737 738 -* **AT Command:** 949 +* ((( 950 +**AT Command:** 951 +))) 739 739 740 -No AT Command for this, user can press the [[ACT button>>path:#Button]] for 1 second for the same. 953 +((( 954 +No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same. 955 +))) 741 741 957 +((( 958 + 959 +))) 742 742 743 -* **Downlink Payload:** 961 +* ((( 962 +**Downlink Payload:** 963 +))) 744 744 965 +((( 745 745 **0x08 FF**, RS485-LN will immediately send an uplink. 967 +))) 746 746 747 747 748 748 971 + 749 749 ==== **Clear RS485 Command** ==== 750 750 974 +((( 751 751 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 976 +))) 752 752 753 -* **AT Command:** 978 +* ((( 979 +**AT Command:** 980 +))) 754 754 982 +((( 755 755 **AT+CMDEAR=mm,nn** mm: start position of erase ,nn: stop position of erase 984 +))) 756 756 986 +((( 757 757 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 988 +))) 758 758 990 +((( 759 759 Example screen shot after clear all RS485 commands. 992 +))) 760 760 994 +((( 995 + 996 +))) 761 761 998 +((( 762 762 The uplink screen shot is: 1000 +))) 763 763 764 -[[image:1654160691922-496.png]] [[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image001.png]]1002 +[[image:1654160691922-496.png]] 765 765 766 766 767 -* **Downlink Payload:** 1005 +* ((( 1006 +**Downlink Payload:** 1007 +))) 768 768 1009 +((( 769 769 **0x09 aa bb** same as AT+CMDEAR=aa,bb 1011 +))) 770 770 771 771 772 772 1015 + 773 773 ==== **Set Serial Communication Parameters** ==== 774 774 1018 +((( 775 775 Set the Rs485 serial communication parameters: 1020 +))) 776 776 777 -* **AT Command:** 1022 +* ((( 1023 +**AT Command:** 1024 +))) 778 778 1026 +((( 779 779 Set Baud Rate: 1028 +))) 780 780 781 781 (% class="box infomessage" %) 782 782 ((( 1032 +((( 783 783 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 784 784 ))) 1035 +))) 785 785 1037 +((( 786 786 Set UART Parity 1039 +))) 787 787 788 788 (% class="box infomessage" %) 789 789 ((( 1043 +((( 790 790 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 791 791 ))) 1046 +))) 792 792 1048 +((( 793 793 Set STOPBIT 1050 +))) 794 794 795 795 (% class="box infomessage" %) 796 796 ((( 1054 +((( 797 797 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 798 798 ))) 1057 +))) 799 799 1059 +((( 1060 + 1061 +))) 800 800 801 -* **Downlink Payload:** 1063 +* ((( 1064 +**Downlink Payload:** 1065 +))) 802 802 1067 +((( 803 803 **A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1069 +))) 804 804 1071 +((( 805 805 **Example:** 1073 +))) 806 806 807 -* A7 01 00 60 same as AT+BAUDR=9600 808 -* 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 +))) 809 809 1082 +((( 810 810 A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1084 +))) 811 811 1086 +((( 812 812 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1088 +))) 813 813 814 814 1091 + 1092 + 815 815 == 3.6 Listening mode for RS485 network == 816 816 1095 +((( 817 817 This feature support since firmware v1.4 1097 +))) 818 818 1099 +((( 819 819 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 +))) 820 820 821 821 [[image:image-20220602171200-8.png||height="567" width="1007"]] 822 822 1105 +((( 823 823 To enable the listening mode, use can run the command AT+RXMODE. 1107 +))) 824 824 1109 +((( 1110 + 1111 +))) 825 825 826 -(% border="1" style="background-color:#ffffcc; width:500px" %) 827 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 828 -|(% 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. 829 -|(% 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 830 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 831 -|(% 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: 161px;" %)((( 1115 +**Command example:** 1116 +)))|=(% style="width: 337px;" %)((( 1117 +**Function** 1118 +))) 1119 +|(% style="width:161px" %)((( 1120 +AT+RXMODE=1,10 1121 +)))|(% style="width:337px" %)((( 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:161px" %)((( 1125 +AT+RXMODE=2,500 1126 +)))|(% style="width:337px" %)((( 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:161px" %)((( 1130 +AT+RXMODE=0,0 1131 +)))|(% style="width:337px" %)((( 1132 +Disable listening mode. This is the default settings. 1133 +))) 1134 +|(% style="width:161px" %)((( 1135 + 1136 +)))|(% style="width:337px" %)((( 1137 +A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 | cc) 1138 +))) 832 832 1140 +((( 833 833 **Downlink Command:** 1142 +))) 834 834 1144 +((( 835 835 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1146 +))) 836 836 1148 +((( 1149 + 1150 +))) 837 837 1152 +((( 838 838 **Example**: 1154 +))) 839 839 1156 +((( 840 840 The RS485-LN is set to AT+RXMODE=2,1000 1158 +))) 841 841 1160 +((( 842 842 There is a two Modbus commands in the RS485 network as below: 1162 +))) 843 843 1164 +((( 844 844 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1166 +))) 845 845 1168 +((( 846 846 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1170 +))) 847 847 1172 +((( 848 848 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 +))) 849 849 1176 +((( 850 850 [[image:image-20220602171200-9.png]] 1178 +))) 851 851 1180 +((( 1181 + 1182 +))) 852 852 1184 +((( 853 853 (% 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 +))) 854 854 855 855 856 856 == 3.7 Buttons == 857 857 858 858 859 -(% border="1" style="background-color:#f7faff; width: 500px" %)860 -|=**Button**|=(% style="width: 1420px;" %)**Feature**861 -|**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**862 -|**RST**|(% style="width: 1420px" %)Reboot RS485863 -|**PRO**|(% style="width: 1420px" %)Use for upload image, see [[How to Update Image>>path:#upgrade_image]]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"]] 864 864 865 - 866 866 == 3.8 LEDs == 867 867 868 -(% border="1" style="background-color:#f7faff; width:500px" %) 869 -|=**LEDs**|=**Feature** 1200 + 1201 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %) 1202 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature** 870 870 |**PWR**|Always on if there is power 871 -|**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. 872 872 873 - 874 874 = 4. Case Study = 875 875 876 876 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]] ... ... @@ -880,19 +880,26 @@ 880 880 881 881 == 5.1 Access AT Command == 882 882 1215 +((( 883 883 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 +))) 884 884 885 885 [[image:1654162355560-817.png]] 886 886 887 887 1222 +((( 888 888 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 +))) 889 889 890 890 [[image:1654162368066-342.png]] 891 891 892 892 893 -More detail AT Command manual can be found at [[AT Command Manual>>||anchor="3.5ConfigureRS485-BLviaATorDownlink"]] 1229 +((( 1230 +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 +))) 894 894 895 895 1234 + 896 896 == 5.2 Common AT Command Sequence == 897 897 898 898 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === ... ... @@ -966,13 +966,23 @@ 966 966 967 967 == 6.1 How to upgrade the image? == 968 968 1308 +((( 969 969 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to: 1310 +))) 970 970 971 -* Support new features 972 -* For bug fix 973 -* Change LoRaWAN bands. 1312 +* ((( 1313 +Support new features 1314 +))) 1315 +* ((( 1316 +For bug fix 1317 +))) 1318 +* ((( 1319 +Change LoRaWAN bands. 1320 +))) 974 974 1322 +((( 975 975 Below shows the hardware connection for how to upload an image to RS485-LN: 1324 +))) 976 976 977 977 [[image:1654162535040-878.png]] 978 978 ... ... @@ -982,7 +982,11 @@ 982 982 983 983 **Step3: **Open flashloader; choose the correct COM port to update. 984 984 1334 +((( 1335 +((( 985 985 (% 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. 1337 +))) 1338 +))) 986 986 987 987 988 988 [[image:image-20220602175818-12.png]] ... ... @@ -1045,7 +1045,6 @@ 1045 1045 * (% style="color:blue" %)**RU864**(%%): frequency bands RU864 1046 1046 * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865 1047 1047 1048 - 1049 1049 = 9.Packing Info = 1050 1050 1051 1051 ... ... @@ -1062,33 +1062,62 @@ 1062 1062 * Package Size / pcs : 14.5 x 8 x 5 cm 1063 1063 * Weight / pcs : 170g 1064 1064 1065 - 1066 1066 = 10. FCC Caution for RS485LN-US915 = 1067 1067 1419 +((( 1068 1068 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 1421 +))) 1069 1069 1423 +((( 1070 1070 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. 1425 +))) 1071 1071 1427 +((( 1428 + 1429 +))) 1072 1072 1431 +((( 1073 1073 **IMPORTANT NOTE:** 1433 +))) 1074 1074 1435 +((( 1075 1075 **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: 1437 +))) 1076 1076 1439 +((( 1077 1077 —Reorient or relocate the receiving antenna. 1441 +))) 1078 1078 1443 +((( 1079 1079 —Increase the separation between the equipment and receiver. 1445 +))) 1080 1080 1447 +((( 1081 1081 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. 1449 +))) 1082 1082 1451 +((( 1083 1083 —Consult the dealer or an experienced radio/TV technician for help. 1453 +))) 1084 1084 1455 +((( 1456 + 1457 +))) 1085 1085 1459 +((( 1086 1086 **FCC Radiation Exposure Statement:** 1461 +))) 1087 1087 1463 +((( 1088 1088 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. 1465 +))) 1089 1089 1090 1090 1091 1091 = 11. Support = 1092 1092 1093 -* 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. 1094 -* 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]]. 1470 +* ((( 1471 +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. 1472 +))) 1473 +* ((( 1474 +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]]. 1475 +)))
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