Last modified by Bei Jinggeng on 2025/01/16 11:36
<
From version < 80.1 >
edited by Bei Jinggeng
on 2022/10/28 17:05
To version < 97.1 >
edited by Bei Jinggeng
on 2022/11/30 10:55
>
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... ... @@ -64,7 +64,7 @@
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
... ... @@ -96,7 +96,6 @@
96 96  * Automatic RF Sense and CAD with ultra-fast AFC.
97 97  * Packet engine up to 256 bytes with CRC
98 98  
99 -
100 100  == 1.3 Features ==
101 101  
102 102  
... ... @@ -109,7 +109,6 @@
109 109  * Support Modbus protocol
110 110  * Support Interrupt uplink (Since hardware version v1.2)
111 111  
112 -
113 113  == 1.4 Applications ==
114 114  
115 115  
... ... @@ -120,7 +120,6 @@
120 120  * Smart Cities
121 121  * Smart Factory
122 122  
123 -
124 124  == 1.5 Firmware Change log ==
125 125  
126 126  
... ... @@ -352,7 +352,6 @@
352 352  )))
353 353  )))
354 354  
355 -
356 356  === 3.3.2 Configure sensors ===
357 357  
358 358  
... ... @@ -380,7 +380,6 @@
380 380  )))
381 381  )))|(% style="width:190px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m
382 382  
383 -
384 384  === 3.3.3 Configure read commands for each sampling ===
385 385  
386 386  
... ... @@ -1195,21 +1195,22 @@
1195 1195  
1196 1196  ==== (% style="color:blue" %)**Configure Databit (Since Version 1.4.0)**(%%) ====
1197 1197  
1193 +
1198 1198  * (((
1199 1199  (% style="color:#037691" %)** AT Command:**
1200 1200  )))
1201 1201  
1202 -**~ AT+DATABIT=7    **~/~/ Set the data bits to 7
1198 +(% style="color:#4472c4" %)** AT+DATABIT=7    **(%%)~/~/ Set the data bits to 7
1203 1203  
1204 -**~ AT+DATABIT=8    **~/~/ Set the data bits to 8
1200 +(% style="color:#4472c4" %)** AT+DATABIT=8    **(%%)~/~/ Set the data bits to 8
1205 1205  
1206 1206  * (((
1207 1207  (% style="color:#037691" %)**Downlink Payload:**
1208 1208  )))
1209 1209  
1210 -**~ A7 04 07**: Same as  AT+DATABIT=7
1206 +(% style="color:#4472c4" %)** A7 04 07**(%%): Same as  AT+DATABIT=7
1211 1211  
1212 -**~ A7 04 08**: Same as  AT+DATABIT=8
1208 +(% style="color:#4472c4" %)** A7 04 08**(%%): Same as  AT+DATABIT=8
1213 1213  
1214 1214  
1215 1215  
... ... @@ -1463,7 +1463,6 @@
1463 1463  |(% style="width:50px" %)**RST**|(% style="width:361px" %)Reboot RS485
1464 1464  |(% style="width:50px" %)**PRO**|(% style="width:361px" %)Use for upload image, see [[How to Update Image>>||anchor="H6.1Howtoupgradetheimage3F"]]
1465 1465  
1466 -
1467 1467  == 3.8 LEDs ==
1468 1468  
1469 1469  
... ... @@ -1472,7 +1472,6 @@
1472 1472  |**PWR**|Always on if there is power
1473 1473  |**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.
1474 1474  
1475 -
1476 1476  = 4. Case Study =
1477 1477  
1478 1478  
... ... @@ -1681,7 +1681,107 @@
1681 1681  [[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/]]
1682 1682  
1683 1683  
1678 +== 6.7 How to judge whether there is a problem with the set COMMAND ==
1684 1684  
1680 +=== 6.7.1 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 +=== 6.7.2 Set up PC to monitor RS485 network With Serial tool ===
1699 +
1700 +Note: Receive and send set to hex mode
1701 +
1702 +[[image:image-20221130104310-3.png||height="616" width="714"]]
1703 +
1704 +
1705 +=== 6.7.3 With ModRSsim2: ===
1706 +
1707 +(1)Select serial port MODBUS RS-232
1708 +
1709 +[[image:image-20221130104310-4.png||height="390" width="865"]]
1710 +
1711 +
1712 +(2)Click the serial port icon
1713 +
1714 +[[image:image-20221130104310-5.png||height="392" width="870"]]
1715 +
1716 +
1717 +(3)After selecting the correct serial port and baud rate, click ok
1718 +
1719 +[[image:image-20221130104310-6.png]]
1720 +
1721 +(4)Click the comms.
1722 +
1723 +[[image:image-20221130104310-7.png||height="376" width="835"]]
1724 +
1725 +(% class="wikigeneratedid" id="HRunRS485-LN2FBLcommandandmonitorifitiscorrect." %)
1726 +Run RS485-LN/BL command and monitor if it is correct.
1727 +
1728 +
1729 +=== 6.7.4 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 +=== 6.7.5 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 +=== 6.7.6 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 +
1685 1685  = 7. Trouble Shooting =
1686 1686  
1687 1687  
... ... @@ -1717,7 +1717,6 @@
1717 1717  * (% style="color:red" %)**RU864**(%%):  frequency bands RU864
1718 1718  * (% style="color:red" %)**KZ865**(%%):  frequency bands KZ865
1719 1719  
1720 -
1721 1721  = 9.Packing Info =
1722 1722  
1723 1723  
... ... @@ -1734,7 +1734,6 @@
1734 1734  * Package Size / pcs : 14.5 x 8 x 5 cm
1735 1735  * Weight / pcs : 170g
1736 1736  
1737 -
1738 1738  = 10. FCC Caution for RS485LN-US915 =
1739 1739  
1740 1740  
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