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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... ... @@ -499,6 +499,7 @@ 499 499 500 500 * (% style="color:#4f81bd" %)**Sensor Related Commands**(%%): These commands are special designed for RS485-LN. User can see these commands below: 501 501 502 + 502 502 === 3.5.1 Common Commands === 503 503 504 504 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]] ... ... @@ -544,6 +544,7 @@ 544 544 ** if YY>0, RS485-LN will uplink total YY bytes from the output of this RS485 command; Fport=200 545 545 ** if YY=FF, RS485-LN will uplink RS485 output with the downlink command content; Fport=200. 546 546 548 + 547 547 **Example 1** ~-~-> Configure without ask for uplink (YY=0) 548 548 549 549 To connect a Modbus Alarm with below commands. ... ... @@ -572,271 +572,4 @@ 572 572 573 573 [[image:1654159460680-153.png]] 574 574 575 - 576 - 577 -==== **Set Payload version** ==== 578 - 579 -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. 580 - 581 -* **AT Command:** 582 - 583 -(% class="box infomessage" %) 584 -((( 585 -**AT+PAYVER: Set PAYVER field = 1** 586 -))) 587 - 588 - 589 -* **Downlink Payload:** 590 - 591 -**0xAE 01** ~-~-> Set PAYVER field = 0x01 592 - 593 -**0xAE 0F** ~-~-> Set PAYVER field = 0x0F 594 - 595 - 596 - 597 -==== **Set RS485 Sampling Commands** ==== 598 - 599 -AT+COMMANDx, AT+DATACUTx and AT+SEARCHx 600 - 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"]]. 602 - 603 - 604 -* **AT Command:** 605 - 606 -(% class="box infomessage" %) 607 -((( 608 -**AT+COMMANDx: Configure RS485 read command to sensor.** 609 -))) 610 - 611 -(% class="box infomessage" %) 612 -((( 613 -**AT+DATACUTx: Configure how to handle return from RS485 devices.** 614 -))) 615 - 616 -(% class="box infomessage" %) 617 -((( 618 -**AT+SEARCHx: Configure search command** 619 -))) 620 - 621 - 622 -* **Downlink Payload:** 623 - 624 -**0xAF** downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 625 - 626 -(% style="color:red" %)**Note**(%%): if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 627 - 628 -Format: AF MM NN LL XX XX XX XX YY 629 - 630 -Where: 631 - 632 -* MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 633 -* NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 634 -* LL: The length of AT+COMMAND or AT+DATACUT command 635 -* XX XX XX XX: AT+COMMAND or AT+DATACUT 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. 637 - 638 -**Example:** 639 - 640 -(% style="color:#037691" %)**AF 03 01 06 0A 05 00 04 00 01 00**(%%): Same as AT+COMMAND3=0A 05 00 04 00 01,1 641 - 642 -(% 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** 643 - 644 -(% 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** 645 - 646 - 647 -**0xAB** downlink command can be used for set AT+SEARCHx 648 - 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 - 658 -==== **Fast command to handle MODBUS device** ==== 659 - 660 -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]]. 661 - 662 -This command is valid since v1.3 firmware version 663 - 664 - 665 -**AT+MBFUN has only two value:** 666 - 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 - 673 -**Example:** 674 - 675 -* AT+MBFUN=1 and AT+DATACUT1/AT+DATACUT2 are not configure (0,0,0). 676 -* 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. 677 -* 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. 678 - 679 -[[image:1654133913295-597.png]] 680 - 681 - 682 -[[image:1654133954153-643.png]] 683 - 684 - 685 -* **Downlink Commands:** 686 - 687 -**A9 aa** ~-~-> Same as AT+MBFUN=aa 688 - 689 - 690 - 691 -==== **RS485 command timeout** ==== 692 - 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. 694 - 695 -Default value: 0, range: 0 ~~ 5 seconds 696 - 697 - 698 -* **AT Command:** 699 - 700 -(% class="box infomessage" %) 701 -((( 702 -**AT+CMDDLaa=hex(bb cc)** 703 -))) 704 - 705 -**Example:** 706 - 707 -**AT+CMDDL1=1000** to send the open time to 1000ms 708 - 709 - 710 -* **Downlink Payload:** 711 - 712 -0x AA aa bb cc 713 - 714 -Same as: AT+CMDDLaa=hex(bb cc) 715 - 716 - **Example:** 717 - 718 - **0xAA 01 03 E8** ~-~-> Same as **AT+CMDDL1=1000 ms** 719 - 720 - 721 - 722 -==== **Uplink payload mode** ==== 723 - 724 -Define to use one uplink or multiple uplinks for the sampling. 725 - 726 -The use of this command please see: [[Compose Uplink payload>>||anchor="H3.3.4Composetheuplinkpayload"]] 727 - 728 -* **AT Command:** 729 - 730 -(% class="box infomessage" %) 731 -((( 732 -**AT+DATAUP=0** 733 -))) 734 - 735 -(% class="box infomessage" %) 736 -((( 737 -**AT+DATAUP=1** 738 -))) 739 - 740 - 741 -* **Downlink Payload:** 742 - 743 -**0xAD 00** **~-~->** Same as AT+DATAUP=0 744 - 745 -**0xAD 01** **~-~->** Same as AT+DATAUP=1 746 - 747 - 748 - 749 -==== **Manually trigger an Uplink** ==== 750 - 751 -Ask device to send an uplink immediately. 752 - 753 -* **Downlink Payload:** 754 - 755 -**0x08 FF**, RS485-BL will immediately send an uplink. 756 - 757 - 758 - 759 -==== **Clear RS485 Command** ==== 760 - 761 -The AT+COMMANDx and AT+DATACUTx settings are stored in special location, user can use below command to clear them. 762 - 763 - 764 -* **AT Command:** 765 - 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 767 - 768 -Example screen shot after clear all RS485 commands. 769 - 770 - 771 -The uplink screen shot is: 772 - 773 -[[image:1654134704555-320.png]] 774 - 775 - 776 -* **Downlink Payload:** 777 - 778 -**0x09 aa bb** same as AT+CMDEAR=aa,bb 779 - 780 - 781 - 782 -==== **Set Serial Communication Parameters** ==== 783 - 784 -Set the Rs485 serial communication parameters: 785 - 786 -* **AT Command:** 787 - 788 -Set Baud Rate: 789 - 790 -(% class="box infomessage" %) 791 -((( 792 -**AT+BAUDR=9600** ~/~/ Options: (1200,2400,4800,14400,19200,115200) 793 -))) 794 - 795 -Set UART Parity 796 - 797 -(% class="box infomessage" %) 798 -((( 799 -**AT+PARITY=0** ~/~/ Option: 0: no parity, 1: odd parity, 2: even parity 800 -))) 801 - 802 -Set STOPBIT 803 - 804 -(% class="box infomessage" %) 805 -((( 806 -**AT+STOPBIT=0** ~/~/ Option: 0 for 1bit; 1 for 1.5 bit ; 2 for 2 bits 807 -))) 808 - 809 - 810 -* **Downlink Payload:** 811 - 812 -**A7 01 aa bb**: Same AT+BAUDR=hex(aa bb)*100 813 - 814 -**Example:** 815 - 816 -* A7 01 00 60 same as AT+BAUDR=9600 817 -* A7 01 04 80 same as AT+BAUDR=115200 818 - 819 -A7 02 aa: Same as AT+PARITY=aa (aa value: 00 , 01 or 02) 820 - 821 -A7 03 aa: Same as AT+STOPBIT=aa (aa value: 00 , 01 or 02) 822 - 823 - 824 - 825 -==== **Control output power duration** ==== 826 - 827 -User can set the output power duration before each sampling. 828 - 829 -* **AT Command:** 830 - 831 -**Example:** 832 - 833 -**AT+3V3T=1000** ~/~/ 3V3 output power will open 1s before each sampling. 834 - 835 -**AT+5VT=1000** ~/~/ +5V output power will open 1s before each sampling. 836 - 837 - 838 -* **LoRaWAN Downlink Command:** 839 - 840 -**07 01 aa bb** Same as AT+5VT=(aa bb) 841 - 842 -**07 02 aa bb** Same as AT+3V3T=(aa bb) 577 +==== ====
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