Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 96.1 >
edited by Bei Jinggeng
on 2022/11/30 10:52
To version < 79.3 >
edited by Xiaoling
on 2022/10/27 10:49
>
Change comment: There is no comment for this version

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1 -XWiki.Bei
1 +XWiki.Xiaoling
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64 64  
65 65  (% style="color:#037691" %)**Hardware System:**
66 66  
67 -* STM32L072xxxx MCU
67 +* STM32L072CZT6 MCU
68 68  * SX1276/78 Wireless Chip 
69 69  * Power Consumption (exclude RS485 device):
70 70  ** Idle: 32mA@12v
... ... @@ -291,10 +291,10 @@
291 291  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:
292 292  
293 293  
294 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
294 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
295 295  |=(% style="width: 110px;" %)(((
296 296  **AT Commands**
297 -)))|=(% style="width: 210px;" %)(((
297 +)))|=(% style="width: 190px;" %)(((
298 298  **Description**
299 299  )))|=(% style="width: 190px;" %)(((
300 300  **Example**
... ... @@ -360,8 +360,8 @@
360 360  )))
361 361  )))
362 362  
363 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:510px" %)
364 -|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 210px;" %)**Description**|=(% style="width: 190px;" %)**Example**
363 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:510px" %)
364 +|=(% style="width: 110px;" %)**AT Commands**|=(% style="width: 190px;" %)**Description**|=(% style="width: 190px;" %)**Example**
365 365  |AT+CFGDEV|(% style="width:110px" %)(((
366 366  (((
367 367  This command is used to configure the RS485/TTL devices; they won’t be used during sampling.
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408 408  
409 409  (% border="1" style="background-color:#4bacc6; color:white; width:499px" %)
410 410  |(% style="width:496px" %)(((
411 -**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
411 +(% style="color:#037691" %)**AT+COMMANDx=xx xx xx xx xx xx xx xx xx xx xx xx,m**
412 412  
413 413  **xx xx xx xx xx xx xx xx xx xx xx xx: The RS485 command to be sent**
414 414  
... ... @@ -494,15 +494,11 @@
494 494  Final Payload is (% style="color:#4f81bd" %)**PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA**
495 495  
496 496  
497 -~1. PAYVER: Defined by AT+PAYVER
497 +1. PAYVER: Defined by AT+PAYVER
498 +1. PAYLOAD COUNT: Total how many uplinks of this sampling.
499 +1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
500 +1. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
498 498  
499 -2. PAYLOAD COUNT: Total how many uplinks of this sampling.
500 -
501 -3. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT)
502 -
503 -4. DATA: Valid value: max 8 bytes for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 8 bytes
504 -
505 -
506 506  (% aria-label="image-20220602155039-4.png image widget" contenteditable="false" role="region" tabindex="-1" %)[[image:image-20220602155039-4.png||data-widget="image"]](% style="background-image:url(http://wiki.dragino.com/xwiki/webjars/wiki%3Axwiki/application-ckeditor-webjar/1.61/plugins/widget/images/handle.png); background:rgba(220,220,220,0.5); display:none" %)[[image:data:image/gif;base64,R0lGODlhAQABAPABAP///wAAACH5BAEKAAAALAAAAAABAAEAAAICRAEAOw==||draggable="true" height="15" role="presentation" title="Click and drag to move" width="15"]](% title="Click and drag to resize" %)​
507 507  
508 508  
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568 568  == 3.4 Uplink Payload ==
569 569  
570 570  
571 -(% border="1" cellspacing="5" style="background-color:#ffffcc; color:green; width:500px" %)
572 -|=(% scope="row" style="width: 60px;" %)(((
567 +(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:520px" %)
568 +|(% style="width:90px" %)(((
573 573  Size(bytes)
574 -)))|(% style="width:80px" %)1|(% style="width:360px" %)(((
570 +)))|(% style="width:114px" %)1|(% style="width:353px" %)(((
575 575  Length depends on the return from the commands
576 576  )))
577 -|=(% style="width: 90px;" %)(((
573 +|(% style="width:90px" %)(((
578 578  Value
579 579  )))|(% style="width:114px" %)(((
580 580  PAYLOAD_VER
... ... @@ -1186,26 +1186,23 @@
1186 1186  )))
1187 1187  
1188 1188  
1189 -
1190 -
1191 1191  ==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1192 1192  
1193 -
1194 1194  * (((
1195 1195  (% style="color:#037691" %)** AT Command:**
1196 1196  )))
1197 1197  
1198 -(% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
1191 +**~ AT+DATABIT=7    **~/~/ Set the data bits to 7
1199 1199  
1200 -(% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
1193 +**~ AT+DATABIT=8    **~/~/ Set the data bits to 8
1201 1201  
1202 1202  * (((
1203 1203  (% style="color:#037691" %)**Downlink Payload:**
1204 1204  )))
1205 1205  
1206 -(% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
1199 +**~ A7 04 07**: Same as  AT+DATABIT=7
1207 1207  
1208 -(% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
1201 +**~ A7 04 08**: Same as  AT+DATABIT=8
1209 1209  
1210 1210  
1211 1211  
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1454 1454  
1455 1455  
1456 1456  (% border="1.5" cellspacing="4" style="background-color:#ffffcc; width:430px" %)
1457 -|=(% style="width: 50px;" %)**Button**|=(% style="width: 380px;" %)**Feature**
1450 +|=(% style="width: 50px;" %)**Button**|=(% style="width: 361px;" %)**Feature**
1458 1458  |(% 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**
1459 1459  |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1460 1460  |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
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1665 1665  == 6.5 Can i use point to point communication for RS485-LN? ==
1666 1666  
1667 1667  
1668 -Yes, please updating point-to-point [[firmware>>https://www.dropbox.com/sh/g99v0fxcltn9r1y/AACP33wo_ZQLsxW2MJ70oUoba/RS485-LN/Firmware?dl=0&subfolder_nav_tracking=1]]，then refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1661 +Yes, please refer [[Point to Point Communication for RS485-LN>>Point to Point Communication for RS485-LN]].
1669 1669  
1670 1670  
1671 1671  
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1675 1675  [[Use RS485-BL or RS485-LN to connect to RS232 devices. - DRAGINO>>url:http://8.211.40.43:8080/xwiki/bin/view/Main/RS485%20to%20RS232/]]
1676 1676  
1677 1677  
1678 -== 6.7 How to judge whether there is a problem with the set COMMAND ==
1679 1679  
1680 -=== Introduce: ===
1681 -
1682 -
1683 -Users can use below the structure to fast debug the communication between RS485BL and RS485-LN. The principle is to put the PC in the RS485 network and sniff the packet between Modbus MTU and RS485-BL/LN. We can use this way to:
1684 -
1685 -1. Test if Modbus-MTU works with PC commands.
1686 -1. Check if RS485-LN sent the expected command to Mobus-MTU
1687 -1. Check if Modbus-MTU return back the expected result to RS485-LN.
1688 -1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1689 -
1690 -[[image:image-20221130104310-1.png||height="380" width="680"]]
1691 -
1692 -
1693 -Example Connection:
1694 -
1695 -[[image:image-20221130104310-2.png]]
1696 -
1697 -
1698 -=== Set up PC to monitor RS485 network ===
1699 -
1700 -=== With Serial tool ===
1701 -
1702 -Note: Receive and send set to hex mode
1703 -
1704 -[[image:image-20221130104310-3.png||height="616" width="714"]]
1705 -
1706 -
1707 -=== With ModRSsim2: ===
1708 -
1709 -(1)Select serial port MODBUS RS-232
1710 -
1711 -[[image:image-20221130104310-4.png||height="390" width="865"]]
1712 -
1713 -
1714 -(2)Click the serial port icon
1715 -
1716 -[[image:image-20221130104310-5.png||height="392" width="870"]]
1717 -
1718 -
1719 -(3)After selecting the correct serial port and baud rate, click ok
1720 -
1721 -[[image:image-20221130104310-6.png]]
1722 -
1723 -(4)Click the comms.
1724 -
1725 -[[image:image-20221130104310-7.png||height="376" width="835"]]
1726 -
1727 -=== Run RS485-LN/BL command and monitor if it is correct. ===
1728 -
1729 -=== Example – Test the CFGDEV command ===
1730 -
1731 -RS485-LN sent below command:
1732 -
1733 -AT+CFGDEV=01 03 20 00 01 85 c0,1 to RS485 network, and PC is able to get this command and return commands from MTU to show in the serial tool.
1734 -
1735 -
1736 -We can see the output from the Serial port tool to analyze. And check if they are expected result.
1737 -
1738 -[[image:image-20221130104310-8.png||height="214" width="797"]]
1739 -
1740 -We can also use ModRSsim2 to see the output.
1741 -
1742 -[[image:image-20221130104310-9.png||height="531" width="729"]]
1743 -
1744 -
1745 -
1746 -=== Example – Test CMD command sets. ===
1747 -
1748 -Run AT+SENSORVALUE=1 to test the CMD commands set in RS485-LN.
1749 -
1750 -
1751 -Serial port tool:
1752 -
1753 -[[image:image-20221130104310-10.png||height="339" width="844"]]
1754 -
1755 -ModRSsim2:
1756 -
1757 -[[image:image-20221130104310-11.png||height="281" width="962"]]
1758 -
1759 -
1760 -
1761 -=== Test with PC ===
1762 -
1763 -If there is still have problem to set up correctly the commands between RS485-LN and MTU. User can test the correct RS485 command set in PC and compare with the RS485 command sent out via RS485-LN. as long as both commands are the same, the MTU should return correct result.
1764 -
1765 -
1766 -Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
1767 -
1768 -Connection method：
1769 -
1770 -[[image:image-20221130104310-12.png]]
1771 -
1772 -Link situation:
1773 -
1774 -[[image:image-20221130104310-13.png||height="458" width="486"]]
1775 -
1776 -[[image:image-20221130104310-14.png||height="371" width="823"]]
1777 -
1778 1778  = 7. Trouble Shooting =
1779 1779  
1780 1780  
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