Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Bei Jinggeng on 2025/01/16 11:36
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... ... @@ -92,6 +92,8 @@ 92 92 * Automatic RF Sense and CAD with ultra-fast AFC. 93 93 * Packet engine up to 256 bytes with CRC 94 94 95 + 96 + 95 95 == 1.3 Features == 96 96 97 97 * LoRaWAN Class A & Class C protocol (default Class C) ... ... @@ -114,6 +114,8 @@ 114 114 * Smart Cities 115 115 * Smart Factory 116 116 119 + 120 + 117 117 == 1.5 Firmware Change log == 118 118 119 119 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]] ... ... @@ -123,9 +123,13 @@ 123 123 124 124 ((( 125 125 ((( 130 +((( 126 126 v1.2: Add External Interrupt Pin. 132 +))) 127 127 134 +((( 128 128 v1.0: Release 136 +))) 129 129 130 130 131 131 ))) ... ... @@ -153,7 +153,9 @@ 153 153 == 3.1 How it works? == 154 154 155 155 ((( 164 +((( 156 156 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. 166 +))) 157 157 158 158 159 159 ))) ... ... @@ -229,11 +229,15 @@ 229 229 230 230 ((( 231 231 ((( 242 +((( 232 232 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. 233 233 ))) 245 +))) 234 234 235 235 ((( 248 +((( 236 236 (% style="color:red" %)Note: below description and commands are for firmware version >v1.1, if you have firmware version v1.0. Please check the [[user manual v1.0>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/&file=RS485-LN_UserManual_v1.0.1.pdf]] or upgrade the firmware to v1.1 250 +))) 237 237 238 238 239 239 ))) ... ... @@ -243,19 +243,19 @@ 243 243 244 244 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: 245 245 246 -(% border="1" style="background-color:#ffffcc; color:green; width: 782px" %)247 -|(% style="width:1 28px" %)(((260 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 261 +|=(% style="width: 110px;" %)((( 248 248 **AT Commands** 249 -)))|(% style="width: 305px" %)(((263 +)))|=(% style="width: 190px;" %)((( 250 250 **Description** 251 -)))|(% style="width: 346px" %)(((265 +)))|=(% style="width: 190px;" %)((( 252 252 **Example** 253 253 ))) 254 -|(% style="width:1 28px" %)(((268 +|(% style="width:110px" %)((( 255 255 AT+BAUDR 256 -)))|(% style="width: 305px" %)(((270 +)))|(% style="width:190px" %)((( 257 257 Set the baud rate (for RS485 connection). Default Value is: 9600. 258 -)))|(% style="width: 346px" %)(((272 +)))|(% style="width:190px" %)((( 259 259 ((( 260 260 AT+BAUDR=9600 261 261 ))) ... ... @@ -264,11 +264,11 @@ 264 264 Options: (1200,2400,4800,14400,19200,115200) 265 265 ))) 266 266 ))) 267 -|(% style="width:1 28px" %)(((281 +|(% style="width:110px" %)((( 268 268 AT+PARITY 269 -)))|(% style="width: 305px" %)(((283 +)))|(% style="width:190px" %)((( 270 270 Set UART parity (for RS485 connection) 271 -)))|(% style="width: 346px" %)(((285 +)))|(% style="width:190px" %)((( 272 272 ((( 273 273 AT+PARITY=0 274 274 ))) ... ... @@ -277,9 +277,9 @@ 277 277 Option: 0: no parity, 1: odd parity, 2: even parity 278 278 ))) 279 279 ))) 280 -|(% style="width:1 28px" %)(((294 +|(% style="width:110px" %)((( 281 281 AT+STOPBIT 282 -)))|(% style="width: 305px" %)(((296 +)))|(% style="width:190px" %)((( 283 283 ((( 284 284 Set serial stopbit (for RS485 connection) 285 285 ))) ... ... @@ -287,7 +287,7 @@ 287 287 ((( 288 288 289 289 ))) 290 -)))|(% style="width: 346px" %)(((304 +)))|(% style="width:190px" %)((( 291 291 ((( 292 292 AT+STOPBIT=0 for 1bit 293 293 ))) ... ... @@ -301,6 +301,8 @@ 301 301 ))) 302 302 ))) 303 303 318 + 319 + 304 304 === 3.3.2 Configure sensors === 305 305 306 306 ((( ... ... @@ -309,16 +309,24 @@ 309 309 ))) 310 310 ))) 311 311 312 -(% border="1" style="background-color:#ffffcc; color:green; width:806px" %) 313 -|**AT Commands**|(% style="width:418px" %)**Description**|(% style="width:256px" %)**Example** 314 -|AT+CFGDEV|(% style="width:418px" %)((( 328 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %) 329 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example** 330 +|AT+CFGDEV|(% style="width:110px" %)((( 331 +((( 315 315 This command is used to configure the RS485/TTL devices; they won’t be used during sampling. 333 +))) 316 316 335 +((( 317 317 AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx, 337 +))) 318 318 339 +((( 319 319 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command 320 -)))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m 341 +))) 342 +)))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m 321 321 344 + 345 + 322 322 === 3.3.3 Configure read commands for each sampling === 323 323 324 324 ((( ... ... @@ -364,8 +364,8 @@ 364 364 365 365 **AT+DATACUTx : **This command defines how to handle the return from AT+COMMANDx, max return length is 45 bytes. 366 366 367 -(% border="1" style="background-color:#4bacc6; color:white; width: 725px" %)368 -|(% style="width: 722px" %)(((391 +(% border="1" style="background-color:#4bacc6; color:white; width:510px" %) 392 +|(% style="width:510px" %)((( 369 369 **AT+DATACUTx=a,b,c** 370 370 371 371 * **a: length for the return of AT+COMMAND** ... ... @@ -491,33 +491,35 @@ 491 491 492 492 == 3.4 Uplink Payload == 493 493 494 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %) 495 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands** 496 -|Value|(% style="width:120px" %)((( 497 -Battery(mV) 498 498 499 - &519 +[[image:image-20220606110929-1.png]] 500 500 501 -Interrupt _Flag 502 -)))|(% style="width:116px" %)((( 503 -PAYLOAD_VER 504 - 505 - 506 -)))|(% 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. 507 - 508 508 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors. 509 509 510 510 511 511 == 3.5 Configure RS485-BL via AT or Downlink == 512 512 526 +((( 513 513 User can configure RS485-LN via AT Commands or LoRaWAN Downlink Commands 528 +))) 514 514 530 +((( 515 515 There are two kinds of Commands: 532 +))) 516 516 517 -* (% 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]] 534 +* ((( 535 +(% 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]] 536 +))) 518 518 519 -* (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN. User can see these commands below: 538 +* ((( 539 +(% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN. User can see these commands below: 540 +))) 520 520 542 +((( 543 + 544 +))) 545 + 546 + 521 521 === 3.5.1 Common Commands === 522 522 523 523 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]] ... ... @@ -536,142 +536,282 @@ 536 536 537 537 538 538 565 + 539 539 ==== **RS485 Debug Command** ==== 540 540 568 +((( 541 541 This command is used to configure the RS485 devices; they won’t be used during sampling. 570 +))) 542 542 543 -* **AT Command** 572 +* ((( 573 +**AT Command** 574 +))) 544 544 545 545 (% class="box infomessage" %) 546 546 ((( 578 +((( 547 547 **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m** 548 548 ))) 581 +))) 549 549 583 +((( 550 550 m: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command 585 +))) 551 551 552 -* **Downlink Payload** 587 +* ((( 588 +**Downlink Payload** 589 +))) 553 553 591 +((( 554 554 Format: A8 MM NN XX XX XX XX YY 593 +))) 555 555 595 +((( 556 556 Where: 597 +))) 557 557 558 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC 559 -* NN: The length of RS485 command 560 -* XX XX XX XX: RS485 command total NN bytes 561 -* YY: How many bytes will be uplink from the return of this RS485 command, 562 -** if YY=0, RS485-LN will execute the downlink command without uplink; 563 -** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200 564 -** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200. 599 +* ((( 600 +MM: 1: add CRC-16/MODBUS ; 0: no CRC 601 +))) 602 +* ((( 603 +NN: The length of RS485 command 604 +))) 605 +* ((( 606 +XX XX XX XX: RS485 command total NN bytes 607 +))) 608 +* ((( 609 +((( 610 +YY: How many bytes will be uplink from the return of this RS485 command, 611 +))) 565 565 613 +* ((( 614 +if YY=0, RS485-LN will execute the downlink command without uplink; 615 +))) 616 +* ((( 617 +if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200 618 +))) 619 +* ((( 620 +if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200. 621 +))) 622 +))) 623 + 624 +((( 566 566 **Example 1** ~-~-> Configure without ask for uplink (YY=0) 626 +))) 567 567 628 +((( 568 568 To connect a Modbus Alarm with below commands. 630 +))) 569 569 570 -* 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. 632 +* ((( 633 +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. 634 +))) 571 571 572 -* 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. 636 +* ((( 637 +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. 638 +))) 573 573 640 +((( 574 574 So if user want to use downlink command to control to RS485 Alarm, he can use: 642 +))) 575 575 644 +((( 576 576 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm 646 +))) 577 577 648 +((( 578 578 (% style="color:#4f81bd" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm 650 +))) 579 579 652 +((( 580 580 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. 654 +))) 581 581 656 +((( 657 + 658 +))) 582 582 660 +((( 583 583 **Example 2** ~-~-> Configure with requesting uplink and original downlink command (**YY=FF**) 662 +))) 584 584 664 +((( 585 585 User in IoT server send a downlink command: (% style="color:#4f81bd" %)**A8 01 06 0A 08 00 04 00 01 YY** 666 +))) 586 586 668 +((( 669 + 670 +))) 587 587 672 +((( 588 588 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: 674 +))) 589 589 676 +((( 590 590 **A8** (% style="color:#4f81bd" %)**0A 08 00 04 00 **(% style="color:red" %)**01 06** ** **(% style="color:green" %)**0A 08 00 04 00 00** 678 +))) 591 591 680 +((( 592 592 [[image:1654159460680-153.png]] 682 +))) 593 593 594 594 595 595 686 + 596 596 ==== **Set Payload version** ==== 597 597 689 +((( 598 598 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. 691 +))) 599 599 600 -* **AT Command:** 693 +* ((( 694 +**AT Command:** 695 +))) 601 601 602 602 (% class="box infomessage" %) 603 603 ((( 699 +((( 604 604 **AT+PAYVER: Set PAYVER field = 1** 605 605 ))) 702 +))) 606 606 607 -* **Downlink Payload:** 704 +* ((( 705 +**Downlink Payload:** 706 +))) 608 608 708 +((( 609 609 **0xAE 01** ~-~-> Set PAYVER field = 0x01 710 +))) 610 610 712 +((( 611 611 **0xAE 0F** ~-~-> Set PAYVER field = 0x0F 714 +))) 612 612 613 613 614 614 718 + 615 615 ==== **Set RS485 Sampling Commands** ==== 616 616 721 +((( 617 617 AT+COMMANDx or AT+DATACUTx 723 +))) 618 618 725 +((( 619 619 These three commands are used to configure how the RS485-LN polling data from Modbus device. Detail of usage please see : [[polling RS485 device>>||anchor="H3.3.3Configurereadcommandsforeachsampling"]]. 727 +))) 620 620 729 +((( 730 + 731 +))) 621 621 622 -* **AT Command:** 733 +* ((( 734 +**AT Command:** 735 +))) 623 623 624 624 (% class="box infomessage" %) 625 625 ((( 739 +((( 626 626 **AT+COMMANDx: Configure RS485 read command to sensor.** 627 627 ))) 742 +))) 628 628 629 629 (% class="box infomessage" %) 630 630 ((( 746 +((( 631 631 **AT+DATACUTx: Configure how to handle return from RS485 devices.** 632 632 ))) 749 +))) 633 633 751 +((( 752 + 753 +))) 634 634 635 -* **Downlink Payload:** 755 +* ((( 756 +**Downlink Payload:** 757 +))) 636 636 759 +((( 637 637 **0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 761 +))) 638 638 763 +((( 639 639 (% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 765 +))) 640 640 767 +((( 641 641 Format: AF MM NN LL XX XX XX XX YY 769 +))) 642 642 771 +((( 643 643 Where: 773 +))) 644 644 645 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 646 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 647 -* LL: The length of AT+COMMAND or AT+DATACUT command 648 -* XX XX XX XX: AT+COMMAND or AT+DATACUT command 649 -* YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command. 775 +* ((( 776 +MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 777 +))) 778 +* ((( 779 +NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 780 +))) 781 +* ((( 782 +LL: The length of AT+COMMAND or AT+DATACUT command 783 +))) 784 +* ((( 785 +XX XX XX XX: AT+COMMAND or AT+DATACUT command 786 +))) 787 +* ((( 788 +YY: If YY=0, RS485-BL will execute the downlink command without uplink; if YY=1, RS485-LN will execute an uplink after got this command. 789 +))) 650 650 791 +((( 651 651 **Example:** 793 +))) 652 652 795 +((( 653 653 (% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1 797 +))) 654 654 799 +((( 655 655 (% style="color:#037691" %)**AF 03 02 06**(% style="color:orange" %)** 10 **(% style="color:red" %)**01 **(% style="color:green" %)**05 06 09 0A**(% style="color:#037691" %)** 00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**16**(%%),(% style="color:red" %)**1**(%%),(% style="color:green" %)**5+6+9+10** 801 +))) 656 656 803 +((( 657 657 (% style="color:#037691" %)**AF 03 02 06 **(% style="color:orange" %)**0B**(% style="color:red" %)** 02 **(% style="color:green" %)**05 07 08 0A **(% style="color:#037691" %)**00**(%%): Same as AT+DATACUT3=(% style="color:orange" %)**11**(%%),(% style="color:red" %)**2**(%%),(% style="color:green" %)**5~~7+8~~10** 805 +))) 658 658 659 659 660 660 809 + 661 661 ==== **Fast command to handle MODBUS device** ==== 662 662 812 +((( 663 663 AT+MBFUN is valid since v1.3 firmware version. The command is for fast configure to read Modbus devices. It is only valid for the devices which follow the [[MODBUS-RTU protocol>>url:https://www.modbustools.com/modbus.html]]. 814 +))) 664 664 816 +((( 665 665 This command is valid since v1.3 firmware version 818 +))) 666 666 820 +((( 667 667 AT+MBFUN can auto read the Modbus function code: 01, 02, 03 or 04. AT+MBFUN has lower priority vs AT+DATACUT command. If AT+DATACUT command is configured, AT+MBFUN will be ignore. 822 +))) 668 668 824 +((( 825 + 826 +))) 669 669 828 +((( 670 670 **Example:** 830 +))) 671 671 672 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 673 -* 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. 674 -* AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10. 832 +* ((( 833 +AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). So RS485-LN. 834 +))) 835 +* ((( 836 +AT+COMMAND1= 01 03 00 10 00 08,1 ~-~-> read slave address 01 , function code 03, start address 00 01, quantity of registers 00 08. 837 +))) 838 +* ((( 839 +AT+COMMAND2= 01 02 00 40 00 10,1 ~-~-> read slave address 01 , function code 02, start address 00 40, quantity of inputs 00 10. 840 +))) 675 675 676 676 [[image:image-20220602165351-6.png]] 677 677 ... ... @@ -679,203 +679,377 @@ 679 679 680 680 681 681 848 + 682 682 ==== **RS485 command timeout** ==== 683 683 851 +((( 684 684 Some Modbus device has slow action to send replies. This command is used to configure the RS485-LN to use longer time to wait for their action. 853 +))) 685 685 855 +((( 686 686 Default value: 0, range: 0 ~~ 65 seconds 857 +))) 687 687 688 -* **AT Command:** 859 +* ((( 860 +**AT Command:** 861 +))) 689 689 690 690 (% class="box infomessage" %) 691 691 ((( 865 +((( 692 692 **AT+CMDDLaa=hex(bb cc)*1000** 693 693 ))) 868 +))) 694 694 870 +((( 695 695 **Example:** 872 +))) 696 696 874 +((( 697 697 **AT+CMDDL1=1000** to send the open time to 1000ms 876 +))) 698 698 878 +((( 879 + 880 +))) 699 699 700 -* **Downlink Payload:** 882 +* ((( 883 +**Downlink Payload:** 884 +))) 701 701 886 +((( 702 702 **0x AA aa bb cc** 888 +))) 703 703 890 +((( 704 704 Same as: AT+CMDDLaa=hex(bb cc)*1000 892 +))) 705 705 894 +((( 706 706 **Example:** 896 +))) 707 707 898 +((( 708 708 0xAA 01 00 01 ~-~-> Same as **AT+CMDDL1=1000 ms** 900 +))) 709 709 710 710 711 711 904 + 712 712 ==== **Uplink payload mode** ==== 713 713 907 +((( 714 714 Define to use one uplink or multiple uplinks for the sampling. 909 +))) 715 715 911 +((( 716 716 The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]] 913 +))) 717 717 718 -* **AT Command:** 915 +* ((( 916 +**AT Command:** 917 +))) 719 719 720 720 (% class="box infomessage" %) 721 721 ((( 921 +((( 722 722 **AT+DATAUP=0** 723 723 ))) 924 +))) 724 724 725 725 (% class="box infomessage" %) 726 726 ((( 928 +((( 727 727 **AT+DATAUP=1** 728 728 ))) 931 +))) 729 729 933 +((( 934 + 935 +))) 730 730 731 -* **Downlink Payload:** 937 +* ((( 938 +**Downlink Payload:** 939 +))) 732 732 941 +((( 733 733 **0xAD 00** **~-~->** Same as AT+DATAUP=0 943 +))) 734 734 945 +((( 735 735 **0xAD 01** **~-~->** Same as AT+DATAUP=1 947 +))) 736 736 737 737 738 738 951 + 739 739 ==== **Manually trigger an Uplink** ==== 740 740 954 +((( 741 741 Ask device to send an uplink immediately. 956 +))) 742 742 743 -* **AT Command:** 958 +* ((( 959 +**AT Command:** 960 +))) 744 744 962 +((( 745 745 No AT Command for this, user can press the [[ACT button>>||anchor="H3.7Buttons"]] for 1 second for the same. 964 +))) 746 746 966 +((( 967 + 968 +))) 747 747 748 -* **Downlink Payload:** 970 +* ((( 971 +**Downlink Payload:** 972 +))) 749 749 974 +((( 750 750 **0x08 FF**, RS485-LN will immediately send an uplink. 976 +))) 751 751 752 752 753 753 980 + 754 754 ==== **Clear RS485 Command** ==== 755 755 983 +((( 756 756 The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 985 +))) 757 757 758 -* **AT Command:** 987 +* ((( 988 +**AT Command:** 989 +))) 759 759 991 +((( 760 760 **AT+CMDEAR=mm,nn** mm: start position of erase ,nn: stop position of erase 993 +))) 761 761 995 +((( 762 762 Etc. AT+CMDEAR=1,10 means erase AT+COMMAND1/AT+DATACUT1 to AT+COMMAND10/AT+DATACUT10 997 +))) 763 763 999 +((( 764 764 Example screen shot after clear all RS485 commands. 1001 +))) 765 765 1003 +((( 1004 + 1005 +))) 766 766 1007 +((( 767 767 The uplink screen shot is: 1009 +))) 768 768 769 769 [[image:1654160691922-496.png]] 770 770 771 771 772 -* **Downlink Payload:** 1014 +* ((( 1015 +**Downlink Payload:** 1016 +))) 773 773 1018 +((( 774 774 **0x09 aa bb** same as AT+CMDEAR=aa,bb 1020 +))) 775 775 776 776 777 777 1024 + 778 778 ==== **Set Serial Communication Parameters** ==== 779 779 1027 +((( 780 780 Set the Rs485 serial communication parameters: 1029 +))) 781 781 782 -* **AT Command:** 1031 +* ((( 1032 +**AT Command:** 1033 +))) 783 783 1035 +((( 784 784 Set Baud Rate: 1037 +))) 785 785 786 786 (% class="box infomessage" %) 787 787 ((( 1041 +((( 788 788 **AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 789 789 ))) 1044 +))) 790 790 1046 +((( 791 791 Set UART Parity 1048 +))) 792 792 793 793 (% class="box infomessage" %) 794 794 ((( 1052 +((( 795 795 **AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 796 796 ))) 1055 +))) 797 797 1057 +((( 798 798 Set STOPBIT 1059 +))) 799 799 800 800 (% class="box infomessage" %) 801 801 ((( 1063 +((( 802 802 **AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 803 803 ))) 1066 +))) 804 804 1068 +((( 1069 + 1070 +))) 805 805 806 -* **Downlink Payload:** 1072 +* ((( 1073 +**Downlink Payload:** 1074 +))) 807 807 1076 +((( 808 808 **A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 1078 +))) 809 809 1080 +((( 810 810 **Example:** 1082 +))) 811 811 812 -* A7 01 00 60 same as AT+BAUDR=9600 813 -* A7 01 04 80 same as AT+BAUDR=115200 1084 +* ((( 1085 +A7 01 00 60 same as AT+BAUDR=9600 1086 +))) 1087 +* ((( 1088 +A7 01 04 80 same as AT+BAUDR=115200 1089 +))) 814 814 1091 +((( 815 815 A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 1093 +))) 816 816 1095 +((( 817 817 A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 1097 +))) 818 818 819 819 1100 + 1101 + 820 820 == 3.6 Listening mode for RS485 network == 821 821 1104 +((( 822 822 This feature support since firmware v1.4 1106 +))) 823 823 1108 +((( 824 824 RS485-LN supports listening mode, it can listen the RS485 network packets and send them via LoRaWAN uplink. Below is the structure. The blue arrow shows the RS485 network packets to RS485-LN. 1110 +))) 825 825 826 826 [[image:image-20220602171200-8.png||height="567" width="1007"]] 827 827 1114 +((( 828 828 To enable the listening mode, use can run the command AT+RXMODE. 1116 +))) 829 829 1118 +((( 1119 + 1120 +))) 830 830 831 -(% border="1" style="background-color:#ffffcc; width:500px" %) 832 -|=(% style="width: 161px;" %)**Command example:**|=(% style="width: 337px;" %)**Function** 833 -|(% 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. 834 -|(% 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 835 -|(% style="width:161px" %)AT+RXMODE=0,0|(% style="width:337px" %)Disable listening mode. This is the default settings. 836 -|(% style="width:161px" %) |(% style="width:337px" %)A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 ~| cc) 1122 +(% border="1" cellspacing="10" style="background-color:#ffffcc; width:500px" %) 1123 +|=(% style="width: 100px;" %)((( 1124 +**Command example** 1125 +)))|=(% style="width: 400px;" %)((( 1126 +**Function** 1127 +))) 1128 +|(% style="width:100px" %)((( 1129 +AT+RXMODE=1,10 1130 +)))|(% style="width:400px" %)((( 1131 +Enable listening mode 1, if RS485-LN has received more than 10 RS485 commands from the network. RS485-LN will send these commands via LoRaWAN uplinks. 1132 +))) 1133 +|(% style="width:100px" %)((( 1134 +AT+RXMODE=2,500 1135 +)))|(% style="width:400px" %)((( 1136 +Enable listening mode 2, RS485-LN will capture and send a 500ms content once from the first detect of character. Max value is 65535 ms 1137 +))) 1138 +|(% style="width:100px" %)((( 1139 +AT+RXMODE=0,0 1140 +)))|(% style="width:400px" %)((( 1141 +Disable listening mode. This is the default settings. 1142 +))) 1143 +|(% style="width:100px" %)((( 1144 + 1145 +)))|(% style="width:400px" %)((( 1146 +A6 aa bb cc same as AT+RXMODE=aa,(bb<<8 | cc) 1147 +))) 837 837 1149 +((( 838 838 **Downlink Command:** 1151 +))) 839 839 1153 +((( 840 840 **0xA6 aa bb cc ** same as AT+RXMODE=aa,(bb<<8 | cc) 1155 +))) 841 841 1157 +((( 1158 + 1159 +))) 842 842 1161 +((( 843 843 **Example**: 1163 +))) 844 844 1165 +((( 845 845 The RS485-LN is set to AT+RXMODE=2,1000 1167 +))) 846 846 1169 +((( 847 847 There is a two Modbus commands in the RS485 network as below: 1171 +))) 848 848 1173 +((( 849 849 The Modbus master send a command: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b 1175 +))) 850 850 1177 +((( 851 851 And Modbus slave reply with: (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1179 +))) 852 852 1181 +((( 853 853 RS485-LN will capture both and send the uplink: (% style="background-color:#ffc000" %)01 03 00 00 00 02 c4 0b (% style="background-color:green" %)01 03 04 00 00 00 00 fa 33 1183 +))) 854 854 1185 +((( 855 855 [[image:image-20220602171200-9.png]] 1187 +))) 856 856 1189 +((( 1190 + 1191 +))) 857 857 1193 +((( 1194 +((( 858 858 (% style="color:red" %)Notice: Listening mode can work with the default polling mode of RS485-LN. When RS485-LN is in to send the RS485 commands (from AT+COMMANDx), the listening mode will be interrupt for a while. 1196 +))) 1197 +))) 859 859 860 860 861 861 == 3.7 Buttons == 862 862 863 863 864 -(% border="1" style="background-color:#f7faff; width: 500px" %)865 -|=**Button**|=(% style="width: 1 420px;" %)**Feature**866 -|**ACT**|(% style="width:1 420px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink**867 -|**RST**|(% style="width:1 420px" %)Reboot RS485868 -|**PRO**|(% style="width:1 420px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]1203 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %) 1204 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature** 1205 +|(% style="width:50px" %)**ACT**|(% style="width:361px" %)If RS485 joined in network, press this button for more than 1 second, RS485 will upload a packet, and the SYS LED will give a (% style="color:blue" %)**Blue blink** 1206 +|(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485 1207 +|(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]] 869 869 870 870 1210 + 871 871 == 3.8 LEDs == 872 872 873 -(% border="1" style="background-color:#f7faff; width:500px" %) 874 -|=**LEDs**|=**Feature** 1213 + 1214 +(% border="1" cellspacing="10" style="background-color:#f7faff; width:430px" %) 1215 +|=(% style="width: 50px;" %)**LEDs**|=(% style="width: 380px;" %)**Feature** 875 875 |**PWR**|Always on if there is power 876 -|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink 1217 +|**SYS**|After device is powered on, the SYS will (% style="color:green" %)**fast blink in GREEN**(%%) for 5 times, means RS485-LN start to join LoRaWAN network. If join success, SYS will be (% style="color:green" %)**on GREEN for 5 seconds** (%%)**. **SYS will (% style="color:green" %)**blink Blue**(%%) on every upload and (% style="color:green" %)**blink Green**(%%) once receive a downlink message. 877 877 878 - 879 879 = 4. Case Study = 880 880 881 881 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]] ... ... @@ -885,19 +885,26 @@ 885 885 886 886 == 5.1 Access AT Command == 887 887 1228 +((( 888 888 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. 1230 +))) 889 889 890 890 [[image:1654162355560-817.png]] 891 891 892 892 1235 +((( 893 893 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: 1237 +))) 894 894 895 895 [[image:1654162368066-342.png]] 896 896 897 897 1242 +((( 898 898 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/]] 1244 +))) 899 899 900 900 1247 + 901 901 == 5.2 Common AT Command Sequence == 902 902 903 903 === 5.2.1 Multi-channel ABP mode (Use with SX1301/LG308) === ... ... @@ -920,7 +920,9 @@ 920 920 ))) 921 921 922 922 1270 +((( 923 923 If device already joined network: 1272 +))) 924 924 925 925 (% class="box infomessage" %) 926 926 ((( ... ... @@ -959,10 +959,12 @@ 959 959 960 960 (% style="color:red" %)**Note:** 961 961 1311 +((( 962 962 (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server. 963 963 2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting. 964 964 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. 965 965 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 1316 +))) 966 966 967 967 [[image:1654162478620-421.png]] 968 968 ... ... @@ -971,25 +971,45 @@ 971 971 972 972 == 6.1 How to upgrade the image? == 973 973 1325 +((( 974 974 The RS485-LN LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-LN to: 1327 +))) 975 975 976 -* Support new features 977 -* For bug fix 978 -* Change LoRaWAN bands. 1329 +* ((( 1330 +Support new features 1331 +))) 1332 +* ((( 1333 +For bug fix 1334 +))) 1335 +* ((( 1336 +Change LoRaWAN bands. 1337 +))) 979 979 1339 +((( 980 980 Below shows the hardware connection for how to upload an image to RS485-LN: 1341 +))) 981 981 982 982 [[image:1654162535040-878.png]] 983 983 1345 +((( 984 984 **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]]. 1347 +))) 985 985 1349 +((( 986 986 **Step2**: Download the [[LT Image files>>url:http://www.dragino.com/downloads/index.php?dir=LT_LoRa_IO_Controller/LT33222-L/image/]]. 1351 +))) 987 987 1353 +((( 988 988 **Step3: **Open flashloader; choose the correct COM port to update. 1355 +))) 989 989 990 990 ((( 1358 +((( 1359 +((( 991 991 (% 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. 992 992 ))) 1362 +))) 1363 +))) 993 993 994 994 995 995 [[image:image-20220602175818-12.png]] ... ... @@ -1052,8 +1052,6 @@ 1052 1052 * (% style="color:blue" %)**RU864**(%%): frequency bands RU864 1053 1053 * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865 1054 1054 1055 - 1056 - 1057 1057 = 9.Packing Info = 1058 1058 1059 1059 ... ... @@ -1070,8 +1070,6 @@ 1070 1070 * Package Size / pcs : 14.5 x 8 x 5 cm 1071 1071 * Weight / pcs : 170g 1072 1072 1073 - 1074 - 1075 1075 = 10. FCC Caution for RS485LN-US915 = 1076 1076 1077 1077 (((
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