Last modified by Bei Jinggeng on 2025/01/16 11:36
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From version < 80.2 >
edited by Xiaoling
on 2022/10/29 10:36
To version < 95.1 >
edited by Bei Jinggeng
on 2022/11/30 10:47
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1 -XWiki.Xiaoling
1 +XWiki.Bei
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64 64  
65 65  (% style="color:#037691" %)**Hardware System:**
66 66  
67 -* STM32L072CZT6 MCU
67 +* STM32L072xxxx MCU
68 68  * SX1276/78 Wireless Chip 
69 69  * Power Consumption (exclude RS485 device):
70 70  ** Idle: 32mA@12v
... ... @@ -97,8 +97,6 @@
97 97  * Packet engine up to 256 bytes with CRC
98 98  
99 99  
100 -
101 -
102 102  == 1.3 Features ==
103 103  
104 104  
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112 112  * Support Interrupt uplink (Since hardware version v1.2)
113 113  
114 114  
115 -
116 -
117 117  == 1.4 Applications ==
118 118  
119 119  
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125 125  * Smart Factory
126 126  
127 127  
128 -
129 -
130 130  == 1.5 Firmware Change log ==
131 131  
132 132  
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359 359  )))
360 360  
361 361  
362 -
363 -
364 364  === 3.3.2 Configure sensors ===
365 365  
366 366  
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389 389  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
390 390  
391 391  
392 -
393 -
394 394  === 3.3.3 Configure read commands for each sampling ===
395 395  
396 396  
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1475 1475  |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1476 1476  
1477 1477  
1478 -
1479 -
1480 1480  == 3.8 LEDs ==
1481 1481  
1482 1482  
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1486 1486  |**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.
1487 1487  
1488 1488  
1489 -
1490 -
1491 1491  = 4. Case Study =
1492 1492  
1493 1493  
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1696 1696  [[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/]]
1697 1697  
1698 1698  
1685 +== 6.7 How to judge whether there is a problem with the set COMMAND ==
1699 1699  
1687 += Introduce: =
1688 +
1689 +
1690 +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:
1691 +
1692 +1. Test if Modbus-MTU works with PC commands.
1693 +1. Check if RS485-LN sent the expected command to Mobus-MTU
1694 +1. Check if Modbus-MTU return back the expected result to RS485-LN.
1695 +1. If both b) and c) has issue, we can compare PC’s output and RS485-LN output.
1696 +
1697 +[[image:image-20221130104310-1.png||height="380" width="680"]]
1698 +
1699 +
1700 +Example Connection:
1701 +
1702 +[[image:image-20221130104310-2.png]]
1703 +
1704 +
1705 += Set up PC to monitor RS485 network =
1706 +
1707 +== With Serial tool ==
1708 +
1709 +Note: Receive and send set to hex mode
1710 +
1711 +[[image:image-20221130104310-3.png||height="616" width="714"]]
1712 +
1713 +
1714 +== With ModRSsim2: ==
1715 +
1716 +(1)Select serial port MODBUS RS-232
1717 +
1718 +[[image:image-20221130104310-4.png||height="390" width="865"]]
1719 +
1720 +
1721 +(2)Click the serial port icon
1722 +
1723 +[[image:image-20221130104310-5.png||height="392" width="870"]]
1724 +
1725 +
1726 +(3)After selecting the correct serial port and baud rate, click ok
1727 +
1728 +[[image:image-20221130104310-6.png]]
1729 +
1730 +(4)Click the comms.
1731 +
1732 +[[image:image-20221130104310-7.png||height="376" width="835"]]
1733 +
1734 += Run RS485-LN/BL command and monitor if it is correct. =
1735 +
1736 +== Example – Test the CFGDEV command ==
1737 +
1738 +RS485-LN sent below command:
1739 +
1740 +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.
1741 +
1742 +
1743 +We can see the output from the Serial port tool to analyze. And check if they are expected result.
1744 +
1745 +[[image:image-20221130104310-8.png||height="214" width="797"]]
1746 +
1747 +We can also use ModRSsim2 to see the output.
1748 +
1749 +[[image:image-20221130104310-9.png||height="531" width="729"]]
1750 +
1751 +
1752 +
1753 +== Example – Test CMD command sets. ==
1754 +
1755 +Run AT+SENSORVALUE=1 to test the CMD commands set in RS485-LN.
1756 +
1757 +
1758 +Serial port tool:
1759 +
1760 +[[image:image-20221130104310-10.png||height="339" width="844"]]
1761 +
1762 +ModRSsim2:
1763 +
1764 +[[image:image-20221130104310-11.png||height="281" width="962"]]
1765 +
1766 +
1767 +
1768 += **Test with PC** =
1769 +
1770 +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.
1771 +
1772 +
1773 +Or User can send the working commands set in PC serial tool to Dragino Support to check what should be configured in RS485-LN.
1774 +
1775 +Connection method：
1776 +
1777 +[[image:image-20221130104310-12.png]]
1778 +
1779 +Link situation:
1780 +
1781 +[[image:image-20221130104310-13.png||height="458" width="486"]]
1782 +
1783 +[[image:image-20221130104310-14.png||height="371" width="823"]]
1784 +
1700 1700  = 7. Trouble Shooting =
1701 1701  
1702 1702  
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1733 1733  * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1734 1734  
1735 1735  
1736 -
1737 -
1738 1738  = 9.Packing Info =
1739 1739  
1740 1740  
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1752 1752  * Weight / pcs : 170g
1753 1753  
1754 1754  
1755 -
1756 -
1757 1757  = 10. FCC Caution for RS485LN-US915 =
1758 1758  
1759 1759  
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