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Last modified by Xiaoling on 2025/04/23 15:57
From version 41.22
edited by Xiaoling
on 2022/06/06 11:10
Change comment: There is no comment for this version
To version 41.33
edited by Xiaoling
on 2022/06/06 11:18
Change comment: There is no comment for this version

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... ... @@ -872,7 +872,7 @@
872 872  )))
873 873  
874 874  (((
875 -**}**
875 +{{{}}}}
876 876  
877 877  
878 878  )))
... ... @@ -939,53 +939,101 @@
939 939  
940 940  ==== **RS485 Debug Command (AT+CFGDEV)** ====
941 941  
942 +(((
942 942  This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
944 +)))
943 943  
944 -* **AT Command**
946 +* (((
947 +**AT Command**
948 +)))
945 945  
946 946  (% class="box infomessage" %)
947 947  (((
952 +(((
948 948  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
949 949  )))
955 +)))
950 950  
957 +(((
951 951  m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
959 +)))
952 952  
961 +(((
962 +
963 +)))
953 953  
954 -* **Downlink Payload**
965 +* (((
966 +**Downlink Payload**
967 +)))
955 955  
969 +(((
956 956  Format: A8 MM NN XX XX XX XX YY
971 +)))
957 957  
973 +(((
958 958  Where:
975 +)))
959 959  
960 -* MM: 1: add CRC-16/MODBUS ; 0: no CRC
961 -* NN: The length of RS485 command
962 -* XX XX XX XX: RS485 command total NN bytes
963 -* YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
977 +* (((
978 +MM: 1: add CRC-16/MODBUS ; 0: no CRC
979 +)))
980 +* (((
981 +NN: The length of RS485 command
982 +)))
983 +* (((
984 +XX XX XX XX: RS485 command total NN bytes
985 +)))
986 +* (((
987 +YY: How many bytes will be uplink from the return of this RS485 command, if YY=0, RS485-BL will execute the downlink command without uplink; if YY>0, RS485-BL will uplink total YY bytes from the output of this RS485 command
988 +)))
964 964  
990 +(((
965 965  **Example 1:**
992 +)))
966 966  
994 +(((
967 967  To connect a Modbus Alarm with below commands.
996 +)))
968 968  
969 -* 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.
998 +* (((
999 +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.
1000 +)))
970 970  
971 -* 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.
1002 +* (((
1003 +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.
1004 +)))
972 972  
1006 +(((
973 973  So if user want to use downlink command to control to RS485 Alarm, he can use:
1008 +)))
974 974  
1010 +(((
975 975  (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
1012 +)))
976 976  
1014 +(((
977 977  (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
1016 +)))
978 978  
979 979  (((
980 980  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.
981 981  )))
982 982  
1022 +(((
1023 +
1024 +)))
983 983  
1026 +(((
984 984  **Example 2:**
1028 +)))
985 985  
1030 +(((
986 986  Check TTL Sensor return:
1032 +)))
987 987  
1034 +(((
988 988  [[image:1654132684752-193.png]]
1036 +)))
989 989  
990 990  
991 991  
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1348 1348  )))
1349 1349  
1350 1350  
1399 +
1351 1351  == 3.9 LEDs ==
1352 1352  
1353 1353  (% border="1" style="background-color:#ffffcc; color:green; width:332px" %)
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1371 1371  3.3v position: set to compatible with 3.3v I/O.,
1372 1372  )))
1373 1373  
1423 +(((
1374 1374  **+3.3V**: is always ON
1425 +)))
1375 1375  
1427 +(((
1376 1376  **+5V**: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1429 +)))
1377 1377  
1378 1378  
1379 1379  = 4. Case Study =
... ... @@ -1385,17 +1385,23 @@
1385 1385  
1386 1386  == 5.1 Access AT Command ==
1387 1387  
1441 +(((
1388 1388  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.
1443 +)))
1389 1389  
1390 1390  [[image:1654135840598-282.png]]
1391 1391  
1392 1392  
1448 +(((
1393 1393  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:
1450 +)))
1394 1394  
1395 1395  [[image:1654136105500-922.png]]
1396 1396  
1397 1397  
1455 +(((
1398 1398  More detail AT Command manual can be found at [[AT Command Manual>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]]
1457 +)))
1399 1399  
1400 1400  
1401 1401  == 5.2 Common AT Command Sequence ==
... ... @@ -1420,7 +1420,9 @@
1420 1420  )))
1421 1421  
1422 1422  
1482 +(((
1423 1423  If device already joined network:
1484 +)))
1424 1424  
1425 1425  (% class="box infomessage" %)
1426 1426  (((
... ... @@ -1459,10 +1459,12 @@
1459 1459  
1460 1460  (% style="color:red" %)**Note:**
1461 1461  
1523 +(((
1462 1462  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1463 1463  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1464 1464  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.
1465 1465  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
1528 +)))
1466 1466  
1467 1467  [[image:1654136435598-589.png]]
1468 1468  
... ... @@ -1471,13 +1471,23 @@
1471 1471  
1472 1472  == 6.1 How to upgrade the image? ==
1473 1473  
1537 +(((
1474 1474  The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1539 +)))
1475 1475  
1476 -* Support new features
1477 -* For bug fix
1478 -* Change LoRaWAN bands.
1541 +* (((
1542 +Support new features
1543 +)))
1544 +* (((
1545 +For bug fix
1546 +)))
1547 +* (((
1548 +Change LoRaWAN bands.
1549 +)))
1479 1479  
1551 +(((
1480 1480  Below shows the hardware connection for how to upload an image to RS485-BL:
1553 +)))
1481 1481  
1482 1482  [[image:1654136646995-976.png]]
1483 1483  
... ... @@ -1543,6 +1543,8 @@
1543 1543  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1544 1544  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1545 1545  
1619 +
1620 +
1546 1546  = 9. Packing Info =
1547 1547  
1548 1548  (((