Skip to Content
Last modified by Xiaoling on 2025/04/23 15:57
From version 41.33
edited by Xiaoling
on 2022/06/06 11:18
Change comment: There is no comment for this version
To version 41.18
edited by Xiaoling
on 2022/06/06 11:05
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -872,7 +872,7 @@
872 872  )))
873 873  
874 874  (((
875 -{{{}}}}
875 +**}**
876 876  
877 877  
878 878  )))
... ... @@ -939,101 +939,53 @@
939 939  
940 940  ==== **RS485 Debug Command (AT+CFGDEV)** ====
941 941  
942 -(((
943 943  This command is used to configure the RS485 or TTL sensors; they won’t be used during sampling.
944 -)))
945 945  
946 -* (((
947 -**AT Command**
948 -)))
944 +* **AT Command**
949 949  
950 950  (% class="box infomessage" %)
951 951  (((
952 -(((
953 953  **AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m**
954 954  )))
955 -)))
956 956  
957 -(((
958 958  m: 0: no CRC; 1: add CRC-16/MODBUS in the end of this command.
959 -)))
960 960  
961 -(((
962 -
963 -)))
964 964  
965 -* (((
966 -**Downlink Payload**
967 -)))
954 +* **Downlink Payload**
968 968  
969 -(((
970 970  Format: A8 MM NN XX XX XX XX YY
971 -)))
972 972  
973 -(((
974 974  Where:
975 -)))
976 976  
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 -)))
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
989 989  
990 -(((
991 991  **Example 1:**
992 -)))
993 993  
994 -(((
995 995  To connect a Modbus Alarm with below commands.
996 -)))
997 997  
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 -)))
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.
1001 1001  
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 -)))
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.
1005 1005  
1006 -(((
1007 1007  So if user want to use downlink command to control to RS485 Alarm, he can use:
1008 -)))
1009 1009  
1010 -(((
1011 1011  (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 01 00**(%%): to activate the RS485 Alarm
1012 -)))
1013 1013  
1014 -(((
1015 1015  (% style="color:#037691" %)**A8 01 06 0A 05 00 04 00 00 00**(%%): to deactivate the RS485 Alarm
1016 -)))
1017 1017  
1018 1018  (((
1019 1019  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.
1020 1020  )))
1021 1021  
1022 -(((
1023 -
1024 -)))
1025 1025  
1026 -(((
1027 1027  **Example 2:**
1028 -)))
1029 1029  
1030 -(((
1031 1031  Check TTL Sensor return:
1032 -)))
1033 1033  
1034 -(((
1035 1035  [[image:1654132684752-193.png]]
1036 -)))
1037 1037  
1038 1038  
1039 1039  
... ... @@ -1320,7 +1320,7 @@
1320 1320  
1321 1321  == 3.6 Buttons ==
1322 1322  
1323 -(% border="1" cellspacing="10" style="background-color:#ffffcc; color:green; width:233px" %)
1275 +(% border="1" style="background-color:#ffffcc; color:green; width:233px" %)
1324 1324  |=(% style="width: 89px;" %)**Button**|=(% style="width: 141px;" %)**Feature**
1325 1325  |(% style="width:89px" %)**RST**|(% style="width:141px" %)Reboot RS485-BL
1326 1326  
... ... @@ -1328,75 +1328,38 @@
1328 1328  
1329 1329  == 3.7 +3V3 Output ==
1330 1330  
1331 -(((
1332 1332  RS485-BL has a Controllable +3V3 output, user can use this output to power external sensor.
1333 -)))
1334 1334  
1335 -(((
1336 1336  The +3V3 output will be valid for every sampling. RS485-BL will enable +3V3 output before all sampling and disable the +3V3 after all sampling. 
1337 -)))
1338 1338  
1339 -(((
1340 1340  The +3V3 output time can be controlled by AT Command.
1341 -)))
1342 1342  
1343 -(((
1344 -
1345 -)))
1346 1346  
1347 -(((
1348 1348  (% style="color:#037691" %)**AT+3V3T=1000**
1349 -)))
1350 1350  
1351 -(((
1352 -
1353 -)))
1354 1354  
1355 -(((
1356 1356  Means set +3v3 valid time to have 1000ms. So, the real +3v3 output will actually have 1000ms + sampling time for other sensors.
1357 -)))
1358 1358  
1359 -(((
1360 1360  By default, the AT+3V3T=0. This is a special case, means the +3V3 output is always on at any time
1361 -)))
1362 1362  
1363 1363  
1364 1364  == 3.8 +5V Output ==
1365 1365  
1366 -(((
1367 1367  RS485-BL has a Controllable +5V output, user can use this output to power external sensor.
1368 -)))
1369 1369  
1370 -(((
1371 1371  The +5V output will be valid for every sampling. RS485-BL will enable +5V output before all sampling and disable the +5v after all sampling. 
1372 -)))
1373 1373  
1374 -(((
1375 1375  The 5V output time can be controlled by AT Command.
1376 -)))
1377 1377  
1378 -(((
1379 -
1380 -)))
1381 1381  
1382 -(((
1383 1383  (% style="color:#037691" %)**AT+5VT=1000**
1384 -)))
1385 1385  
1386 -(((
1387 -
1388 -)))
1389 1389  
1390 -(((
1391 1391  Means set 5V valid time to have 1000ms. So, the real 5V output will actually have 1000ms + sampling time for other sensors.
1392 -)))
1393 1393  
1394 -(((
1395 1395  By default, the AT+5VT=0. If the external sensor which require 5v and require more time to get stable state, user can use this command to increase the power ON duration for this sensor.
1396 -)))
1397 1397  
1398 1398  
1399 -
1400 1400  == 3.9 LEDs ==
1401 1401  
1402 1402  (% border="1" style="background-color:#ffffcc; color:green; width:332px" %)
... ... @@ -1403,8 +1403,6 @@
1403 1403  |=**LEDs**|=(% style="width: 274px;" %)**Feature**
1404 1404  |**LED1**|(% style="width:274px" %)Blink when device transmit a packet.
1405 1405  
1406 -
1407 -
1408 1408  == 3.10 Switch Jumper ==
1409 1409  
1410 1410  (% border="1" style="background-color:#ffffcc; color:green; width:515px" %)
... ... @@ -1420,13 +1420,9 @@
1420 1420  3.3v position: set to compatible with 3.3v I/O.,
1421 1421  )))
1422 1422  
1423 -(((
1424 1424  **+3.3V**: is always ON
1425 -)))
1426 1426  
1427 -(((
1428 1428  **+5V**: Only open before every sampling. The time is by default, it is AT+5VT=0.  Max open time. 5000 ms.
1429 -)))
1430 1430  
1431 1431  
1432 1432  = 4. Case Study =
... ... @@ -1438,23 +1438,17 @@
1438 1438  
1439 1439  == 5.1 Access AT Command ==
1440 1440  
1441 -(((
1442 1442  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 -)))
1444 1444  
1445 1445  [[image:1654135840598-282.png]]
1446 1446  
1447 1447  
1448 -(((
1449 1449  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 -)))
1451 1451  
1452 1452  [[image:1654136105500-922.png]]
1453 1453  
1454 1454  
1455 -(((
1456 1456  More detail AT Command manual can be found at [[AT Command Manual>>||anchor="H3.5ConfigureRS485-BLviaATorDownlink"]]
1457 -)))
1458 1458  
1459 1459  
1460 1460  == 5.2 Common AT Command Sequence ==
... ... @@ -1479,9 +1479,7 @@
1479 1479  )))
1480 1480  
1481 1481  
1482 -(((
1483 1483  If device already joined network:
1484 -)))
1485 1485  
1486 1486  (% class="box infomessage" %)
1487 1487  (((
... ... @@ -1520,12 +1520,10 @@
1520 1520  
1521 1521  (% style="color:red" %)**Note:**
1522 1522  
1523 -(((
1524 1524  (% style="color:red" %)1. Make sure the device is set to ABP mode in the IoT Server.
1525 1525  2. Make sure the LG01/02 gateway RX frequency is exactly the same as AT+CHS setting.
1526 1526  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.
1527 1527  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 -)))
1529 1529  
1530 1530  [[image:1654136435598-589.png]]
1531 1531  
... ... @@ -1534,23 +1534,13 @@
1534 1534  
1535 1535  == 6.1 How to upgrade the image? ==
1536 1536  
1537 -(((
1538 1538  The RS485-BL LoRaWAN Controller is shipped with a 3.5mm cable, the cable is used to upload image to RS485-BL to:
1539 -)))
1540 1540  
1541 -* (((
1542 -Support new features
1543 -)))
1544 -* (((
1545 -For bug fix
1546 -)))
1547 -* (((
1548 -Change LoRaWAN bands.
1549 -)))
1438 +* Support new features
1439 +* For bug fix
1440 +* Change LoRaWAN bands.
1550 1550  
1551 -(((
1552 1552  Below shows the hardware connection for how to upload an image to RS485-BL:
1553 -)))
1554 1554  
1555 1555  [[image:1654136646995-976.png]]
1556 1556  
... ... @@ -1616,8 +1616,6 @@
1616 1616  * (% style="color:blue" %)**RU864**(%%): frequency bands RU864
1617 1617  * (% style="color:blue" %)**KZ865**(%%): frequency bands KZ865
1618 1618  
1619 -
1620 -
1621 1621  = 9. Packing Info =
1622 1622  
1623 1623  (((