Changes for page RS485-LN – RS485 to LoRaWAN Converter User Manual
Last modified by Karry Zhuang on 2025/03/06 16:34
Summary
-
Page properties (1 modified, 0 added, 0 removed)
-
Attachments (0 modified, 0 added, 3 removed)
Details
- Page properties
-
- Content
-
... ... @@ -76,6 +76,8 @@ 76 76 * Automatic RF Sense and CAD with ultra-fast AFC. 77 77 * Packet engine up to 256 bytes with CRC. 78 78 79 + 80 + 79 79 == 1.3 Features == 80 80 81 81 * LoRaWAN Class A & Class C protocol (default Class C) ... ... @@ -87,6 +87,8 @@ 87 87 * Support Modbus protocol 88 88 * Support Interrupt uplink (Since hardware version v1.2) 89 89 92 + 93 + 90 90 == 1.4 Applications == 91 91 92 92 * Smart Buildings & Home Automation ... ... @@ -96,6 +96,8 @@ 96 96 * Smart Cities 97 97 * Smart Factory 98 98 103 + 104 + 99 99 == 1.5 Firmware Change log == 100 100 101 101 [[RS485-LN Image files – Download link and Change log>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/]] ... ... @@ -283,6 +283,8 @@ 283 283 ))) 284 284 ))) 285 285 292 + 293 + 286 286 === 3.3.2 Configure sensors === 287 287 288 288 ((( ... ... @@ -301,6 +301,8 @@ 301 301 mm: 0: no CRC, 1: add CRC-16/MODBUS in the end of this command 302 302 )))|(% style="width:256px" %)AT+CFGDEV=xx xx xx xx xx xx xx xx xx xx xx xx,m 303 303 312 + 313 + 304 304 === 3.3.3 Configure read commands for each sampling === 305 305 306 306 ((( ... ... @@ -319,9 +319,11 @@ 319 319 320 320 2. How to get wanted value the from RS485 sensors returns from by 1). There are total 15 AT Commands to handle the return, commands are **AT+DATACUT1**,**AT+DATACUT2**,…, **AT+DATACUTF** corresponding to the commands from 1). All commands are of same grammar. 321 321 322 -3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example **AT+CMDDL1=1000** to send the open time to 1000ms332 +3. Some RS485 device might has longer delay on reply, so user can use AT+CMDDL to set the timeout for getting reply after the RS485 command is sent. For example 323 323 334 +**AT+CMDDL1=1000** to send the open time to 1000ms 324 324 336 + 325 325 After we got the valid value from each RS485 commands, we need to combine them together with the command **AT+DATAUP**. 326 326 327 327 ... ... @@ -352,9 +352,10 @@ 352 352 353 353 * **a: length for the return of AT+COMMAND** 354 354 * **b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections.** 355 -* **c: define the position for valid value. 367 +* **c: define the position for valid value. ** 356 356 ))) 357 357 370 + 358 358 **Examples:** 359 359 360 360 * Grab bytes: ... ... @@ -378,14 +378,10 @@ 378 378 379 379 ((( 380 380 Through AT+COMMANDx and AT+DATACUTx we got valid value from each RS485 commands, Assume these valid value are RETURN1, RETURN2, .., to RETURNx. The next step is how to compose the LoRa Uplink Payload by these RETURNs. The command is **AT+DATAUP.** 381 - 382 - 383 383 ))) 384 384 385 385 ((( 386 -(% style="color:#037691" %)**Examples: AT+DATAUP=0** 387 - 388 - 397 +(% style="color:#4f81bd" %)**Examples: AT+DATAUP=0** 389 389 ))) 390 390 391 391 ((( ... ... @@ -406,10 +406,8 @@ 406 406 407 407 [[image:1653269759169-150.png||height="513" width="716"]] 408 408 418 +(% style="color:#4f81bd" %)**Examples: AT+DATAUP=1** 409 409 410 -(% style="color:#037691" %)**Examples: AT+DATAUP=1** 411 - 412 - 413 413 Compose the uplink payload with value returns in sequence and send with (% style="color:red" %)**Multiply UPLINKs**. 414 414 415 415 Final Payload is ... ... @@ -416,98 +416,138 @@ 416 416 417 417 (% style="color:#4f81bd" %)**Battery Info+PAYVER + PAYLOAD COUNT + PAYLOAD# + DATA** 418 418 419 -1. PAYVER: Defined by AT+PAYVER 420 -1. PAYLOAD COUNT: Total how many uplinks of this sampling. 421 -1. PAYLOAD#: Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT) 422 -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 426 +1. Battery Info (2 bytes): Battery voltage 427 +1. PAYVER (1 byte): Defined by AT+PAYVER 428 +1. PAYLOAD COUNT (1 byte): Total how many uplinks of this sampling. 429 +1. PAYLOAD# (1 byte): Number of this uplink. (from 0,1,2,3…,to PAYLOAD COUNT) 430 +1. DATA: Valid value: max 6 bytes(US915 version here, Notice*!) for each uplink so each uplink <= 11 bytes. For the last uplink, DATA will might less than 6 bytes 423 423 424 -[[image: image-20220602155039-4.png]]432 +[[image:1653269916228-732.png||height="433" width="711"]] 425 425 426 426 427 -So totally there will be 3 uplinks for this sampling, each uplink include 8bytes DATA435 +So totally there will be 3 uplinks for this sampling, each uplink includes 6 bytes DATA 428 428 429 -DATA1=RETURN1 Valid Value +thefirsttwof Validvalueof RETURN10= **20 20 0a 33 90 4102 aa**437 +DATA1=RETURN1 Valid Value = (% style="background-color:green; color:white" %)20 20 0a 33 90 41 430 430 431 -DATA2= 3^^rd^^ ~~10^^th^^ byte of Valid value of RETURN10=**05810a202020 202d**439 +DATA2=1^^st^^ ~~ 6^^th^^ byte of Valid value of RETURN10=(% style="background-color:green; color:white" %) 02 aa 05 81 0a 20 432 432 433 -DATA3=th erestof Valid value of RETURN10=**30**441 +DATA3=7^^th^^ ~~ 11^^th^^ bytes of Valid value of RETURN10 = (% style="background-color:green; color:white" %)20 20 20 2d 30 434 434 443 +Below are the uplink payloads: 435 435 436 - (% style="color:red" %)Notice: In firmwarev1.3, the Max bytes has beenchanged according to the max bytes in different Frequency Bands for lowest SF. As below:445 +[[image:1653270130359-810.png]] 437 437 438 - ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink. 439 439 440 - ForAU915/AS923bands,if UplinkDwelltime=0,max11bytes for eachuplink.448 +(% style="color:red" %)**Notice: the Max bytes is according to the max support bytes in different Frequency Bands for lowest SF. As below:** 441 441 442 - * S915 band, max 11bytes.450 + ~* For AU915/AS923 bands, if UplinkDwell time=0, max 51 bytes for each uplink ( so 51 -5 = 46 max valid date) 443 443 444 - ~*allotherbands:max51 bytes for each uplink.452 + * For AU915/AS923 bands, if UplinkDwell time=1, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date). 445 445 454 + * For US915 band, max 11 bytes for each uplink ( so 11 -5 = 6 max valid date). 446 446 447 - Belowarethe uplinkpayloads:456 + ~* For all other bands: max 51 bytes for each uplink ( so 51 -5 = 46 max valid date). 448 448 449 -[[image:1654157178836-407.png]] 450 - 451 - 452 452 === 3.3.5 Uplink on demand === 453 453 454 -Except uplink periodically, RS485-L Nis able to uplink on demand. The server send downlink command to RS485-LNand RS485 will uplink data base on the command.460 +Except uplink periodically, RS485-BL is able to uplink on demand. The server sends downlink command to RS485-BL and RS485 will uplink data base on the command. 455 455 456 456 Downlink control command: 457 457 458 - **0x08 command**: Poll an uplink with current command set in RS485-LN.464 +[[0x08 command>>path:#downlink_08]]: Poll an uplink with current command set in RS485-BL. 459 459 460 - **0xA8 command**: Send a command to RS485-LNand uplink the output from sensors.466 +[[0xA8 command>>path:#downlink_A8]]: Send a command to RS485-BL and uplink the output from sensors. 461 461 462 462 463 463 464 -=== 3.3.6 Uplink on Interrupt === 470 +1. 471 +11. 472 +111. Uplink on Interrupt 465 465 466 - RS485-LN supportexternalInterruptuplinksincehardwarev1.2release.474 +Put the interrupt sensor between 3.3v_out and GPIO ext.[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image022.png]] 467 467 468 - [[image:1654157342174-798.png]]476 +AT+INTMOD=0 Disable Interrupt 469 469 470 - ConnecttheInterruptpinto RS485-LN INT port and connect the GND pin to V- port.Whenthereisa highvoltage(Max 24v) on INT pin. Device willsend an uplinkpacket.478 +AT+INTMOD=1 Interrupt trigger by rising or falling edge. 471 471 480 +AT+INTMOD=2 Interrupt trigger by falling edge. ( Default Value) 472 472 473 -= =3.4UplinkPayload==482 +AT+INTMOD=3 Interrupt trigger by rising edge. 474 474 475 -(% border="1" style="background-color:#4bacc6; color:white; width:734px" %) 476 -|**Size(bytes)**|(% style="width:120px" %)**2**|(% style="width:116px" %)**1**|(% style="width:386px" %)**Length depends on the return from the commands** 477 -|Value|(% style="width:120px" %)((( 484 + 485 +1. 486 +11. Uplink Payload 487 + 488 +|**Size(bytes)**|**2**|**1**|**Length depends on the return from the commands** 489 +|Value|((( 478 478 Battery(mV) 479 479 480 480 & 481 481 482 482 Interrupt _Flag 483 -)))|( % style="width:116px" %)(((495 +)))|((( 484 484 PAYLOAD_VER 485 485 486 486 487 -)))| (% style="width:386px" %)If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server.499 +)))|If the valid payload is too long and exceed the maximum support payload length in server, server will show payload not provided in the LoRaWAN server. 488 488 489 489 Below is the decoder for the first 3 bytes. The rest bytes are dynamic depends on different RS485 sensors. 490 490 491 491 492 - == 3.5 Configure RS485-BL viaATorDownlink==504 +function Decoder(bytes, port) { 493 493 494 - UsercanconfigureRS485-LNvia AT Commands or LoRaWANDownlink Commands506 +~/~/Payload Formats of RS485-BL Deceive 495 495 496 - Therearetwo kindsof Commands:508 +return { 497 497 498 - *(%style="color:#4f81bd"%)**CommonCommands**(%%): They should be available for each sensor, such as: change uplink interval, resetdevice. Forfirmware v1.3,ser canfind whatcommon commandsit supports:[[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]510 + ~/~/Battery,units:V 499 499 500 - *(%style="color:#4f81bd"%)**SensorRelated Commands**(%%):These commands are special designed for RS485-LN.Usercan seethese commands below:512 + BatV:((bytes[0]<<8 | bytes[1])&0x7fff)/1000, 501 501 514 + ~/~/GPIO_EXTI 502 502 516 + EXTI_Trigger:(bytes[0] & 0x80)? "TRUE":"FALSE", 503 503 504 - ===3.5.1CommonCommands===518 + ~/~/payload of version 505 505 506 - Theyshouldbeavailableforeach of Dragino Sensors, such as:change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports:[[End Device AT Commands and Downlink Command>>doc:Main.End Device AT Commands and Downlink Command.WebHome]]520 + Pay_ver:bytes[2], 507 507 522 + }; 508 508 509 - ===3.5.2Sensor related commands: ===524 + } 510 510 526 + 527 + 528 + 529 + 530 + 531 + 532 +TTN V3 uplink screen shot. 533 + 534 +[[image:file:///C:/Users/93456/AppData/Local/Temp/msohtmlclip1/01/clip_image023.png]] 535 + 536 +1. 537 +11. Configure RS485-BL via AT or Downlink 538 + 539 +User can configure RS485-BL via [[AT Commands >>path:#_Using_the_AT]]or LoRaWAN Downlink Commands 540 + 541 +There are two kinds of Commands: 542 + 543 +* **Common Commands**: They should be available for each sensor, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: http:~/~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands 544 + 545 +* **Sensor Related Commands**: These commands are special designed for RS485-BL. User can see these commands below: 546 + 547 +1. 548 +11. 549 +111. Common Commands: 550 + 551 +They should be available for each of Dragino Sensors, such as: change uplink interval, reset device. For firmware v1.3, user can find what common commands it supports: [[http:~~/~~/wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands>>url:http://wiki.dragino.com/index.php?title=End_Device_AT_Commands_and_Downlink_Commands]] 552 + 553 + 554 +1. 555 +11. 556 +111. Sensor related commands: 557 + 511 511 ==== Choose Device Type (RS485 or TTL) ==== 512 512 513 513 RS485-BL can connect to either RS485 sensors or TTL sensor. User need to specify what type of sensor need to connect.
- 1654157178836-407.png
-
- Author
-
... ... @@ -1,1 +1,0 @@ 1 -XWiki.Xiaoling - Size
-
... ... @@ -1,1 +1,0 @@ 1 -179.9 KB - Content
- 1654157342174-798.png
-
- Author
-
... ... @@ -1,1 +1,0 @@ 1 -XWiki.Xiaoling - Size
-
... ... @@ -1,1 +1,0 @@ 1 -31.9 KB - Content
- image-20220602155039-4.png
-
- Author
-
... ... @@ -1,1 +1,0 @@ 1 -XWiki.Xiaoling - Size
-
... ... @@ -1,1 +1,0 @@ 1 -24.6 KB - Content