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... ... @@ -7,69 +7,61 @@ 7 7 8 8 9 9 10 -= 1. Introduction = 10 += **1. Introduction** = 11 11 12 12 13 13 This article provide the examples for RS485-LN to connect to different type of RS485 sensors. 14 14 15 15 16 -== 1.1 Example 1: Connect to Leak relay and VFD == 16 +== **1.1 Example 1: Connect to Leak relay and VFD** == 17 17 18 18 19 19 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Relay and VFD and communicate with Mobile. The structure is like below: 20 20 21 +[[image:image-20220527091852-1.png]] 21 21 22 - [[image:image-20220527091852-1.png||height="547" width="994"]]23 +Connection 23 23 24 -**Connection** 25 25 26 26 27 27 [[image:image-20220527091942-2.png]](% style="display:none" %) 28 28 29 - **Connection**29 +Connection 30 30 31 31 32 - (% style="color:blue" %)**Related documents:**32 +Related documents: 33 33 34 -* System Structure: [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]] 35 - 36 -* Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code: [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]] 37 - 34 +* [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure 35 +* [[Configure Manual>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : Explanation on how to integrate to Node-red and to the Mobile Phone, and with link to the Github code. 38 38 * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]] 39 39 38 +== **1.2 Example 2: Connect to Pulse Counter** == 40 40 41 41 42 -== 1.2 Example 2: Connect to Pulse Counter == 43 - 44 - 45 45 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to Pulse Counter and communicate with Mobile. This example and example 2 compose the structure for a farm IoT solution. The structure is like below: 46 46 47 47 48 -[[image:image-20220527092058-3.png ||height="552" width="905"]]44 +[[image:image-20220527092058-3.png]] 49 49 50 - **Connection**46 +Connection 51 51 52 52 53 -[[image:image-20220527092146-4.png||height="507" width="906"]] 54 54 55 - **Connection**50 +[[image:image-20220527092146-4.png]] 56 56 52 +Connection 57 57 58 -(% style="color:blue" %)**Related documents:** 59 59 60 -* Configure Document: [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/||_mstmutation="1"]] 61 - 55 +* Configure Document: [[Pickdata MIO40 water pulse counter to LoRa with Dragino RS485-LN>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Pulse-Counter/]] 62 62 * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]] 63 63 58 +== **1.3 Example3: Use RS485-LN with energy meters** == 64 64 60 +=== **1.3.1 OverView** === 65 65 66 -== 1.3 Example 3: Use RS485-LN with energy meters == 67 67 68 -=== 1.3.1 OverView === 69 - 70 - 71 71 ((( 72 -(% style="color:red" %)**Note**: **The specifications of each energy meter are different, please refer to your own energy meter specifications.**64 +(% style="color:red" %)**Note**:The specifications of each energy meter are different, please refer to your own energy meter specifications. 73 73 ))) 74 74 75 75 ((( ... ... @@ -78,11 +78,12 @@ 78 78 79 79 [[image:image-20220527092419-5.png]] 80 80 81 - **Connection1**73 +Connection1 82 82 83 83 76 + 84 84 ((( 85 - (% style="color:blue" %)**How to connect with Energy Meter:**78 +**How to connect with Energy Meter:** 86 86 87 87 88 88 ))) ... ... @@ -96,11 +96,11 @@ 96 96 ))) 97 97 98 98 ((( 99 -Power Source **VIN**to RS485-LN**VIN+**92 +Power Source VIN to RS485-LN VIN+ 100 100 ))) 101 101 102 102 ((( 103 -Power Source **GND**to RS485-LN**VIN-**96 +Power Source GND to RS485-LN VIN- 104 104 ))) 105 105 106 106 ((( ... ... @@ -109,15 +109,16 @@ 109 109 110 110 [[image:image-20220527092514-6.png]] 111 111 112 - **Connection2**105 +Connection2 113 113 114 114 108 + 115 115 [[image:image-20220527092555-7.png]] 116 116 117 - **Connection3**111 +Connection3 118 118 119 119 120 -=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 114 +=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** === 121 121 122 122 123 123 If the user needs to read the parameters of the electric energy meter and use the modbus command,please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter. ... ... @@ -128,13 +128,9 @@ 128 128 (% style="color:blue" %)**Example:**(%%) AT+COMMAND1=01 03 00 00 00 01 84 0A 129 129 130 130 * The first byte : slave address code (=001~247) 131 - 132 132 * The second byte : read register value function code 133 - 134 134 * 3rd and 4th bytes: start address of register to be read 135 - 136 136 * 5th and 6th bytes: Number of registers to read 137 - 138 138 * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6. 139 139 140 140 ((( ... ... @@ -147,22 +147,23 @@ 147 147 ))) 148 148 149 149 * The first byte ARD: slave address code (=001~254) 150 - 151 151 * The second byte: Return to read function code 152 - 153 153 * 3rd byte: total number of bytes 154 - 155 155 * 4th~5th bytes: register data 156 - 157 157 * The 6th and 7th bytes: CRC16 checksum 158 - 159 159 * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage. 160 160 146 +(% class="wikigeneratedid" %) 147 +((( 148 + 161 161 162 162 163 -=== 1.3.3 How to configure RS485-LN and parse output commands === 151 + 152 +))) 164 164 154 +=== **1.3.3 How to configure RS485-LN and parse output commands** === 165 165 156 + 166 166 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 167 167 168 168 ... ... @@ -173,18 +173,16 @@ 173 173 174 174 ((( 175 175 If the configured parameters and commands are incorrect, the return value is not obtained. 176 - 177 - 178 178 ))) 179 179 180 180 [[image:image-20220601143201-9.png]] 181 181 182 - **AT COMMAND**171 +AT COMMAND 183 183 184 184 185 185 (% class="box infomessage" %) 186 186 ((( 187 - (% _mstmutation="1" %)**AT+DATACUTx **(%%): This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c176 + **AT+DATACUTx **: This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 188 188 ))) 189 189 190 190 a: length for the return of AT+COMMAND ... ... @@ -195,22 +195,25 @@ 195 195 196 196 [[image:image-20220601143115-8.png]] 197 197 198 - **AT COMMAND**187 +AT COMMAND 199 199 200 200 190 + 201 201 PAYLOAD is available after the valid value is intercepted. 202 202 193 + 203 203 [[image:image-20220601143046-7.png]] 204 204 205 - **AT COMMAND**196 +AT COMMAND 206 206 207 207 199 + 208 208 You can get configured PAYLOAD on TTN. 209 209 210 210 [[image:image-20220601143519-1.png]] 211 211 212 212 ((( 213 - **AT COMMAND**205 +AT COMMAND 214 214 ))) 215 215 216 216 ((( ... ... @@ -220,7 +220,7 @@ 220 220 ((( 221 221 (% style="color:blue" %)**Example**: 222 222 223 - (% style="color:red" %)**CMD1:**(%%)Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1215 +CMD1: Read current data with MODBUS command. address: 0x03 AT+COMMAND1= 01 03 00 03 00 01,1 224 224 ))) 225 225 226 226 ((( ... ... @@ -234,7 +234,7 @@ 234 234 ))) 235 235 236 236 ((( 237 - (% style="color:red" %)**CMD2:**(%%)Read voltage data with MODBUS command. address: 0x00 AT+COMMAND2= 01 03 00 00 00 01,1229 +CMD2: Read voltage data with MODBUS command. address: 0x00 AT+COMMAND2= 01 03 00 00 00 01,1 238 238 ))) 239 239 240 240 ((( ... ... @@ -248,7 +248,7 @@ 248 248 ))) 249 249 250 250 ((( 251 - (% style="color:red" %)**CMD3:**(%%)Read total active energy data with MODBUS command. address: 0x0031 AT+COMMAND3= 01 03 00 31 00 02,1243 +CMD3: Read total active energy data with MODBUS command. address: 0x0031 AT+COMMAND3= 01 03 00 31 00 02,1 252 252 ))) 253 253 254 254 ((( ... ... @@ -268,7 +268,7 @@ 268 268 AT COMMAND 269 269 270 270 271 -(% style="color:b lue" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.**263 +(% style="color:#4f81bd" %)**01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy.** 272 272 273 273 274 274 [[image:image-20220601143642-2.png]] ... ... @@ -282,12 +282,15 @@ 282 282 [[image:image-20220527093358-15.png]] 283 283 284 284 ((( 285 - **DOWNLINK**277 +DOWNLINK 286 286 ))) 287 287 280 +((( 281 + 282 +))) 288 288 289 289 ((( 290 -(% style="color:b lue" %)**Type Code 0xAF**285 +(% style="color:#4f81bd" %)**Type Code 0xAF** 291 291 ))) 292 292 293 293 ((( ... ... @@ -298,7 +298,7 @@ 298 298 ))) 299 299 300 300 ((( 301 -(% style="color:red" %) **Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink.**296 +(% style="color:red" %)Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 302 302 ))) 303 303 304 304 ((( ... ... @@ -333,8 +333,9 @@ 333 333 will execute an uplink after got this command. 334 334 ))) 335 335 336 - 337 337 ((( 332 + 333 + 338 338 (% style="color:blue" %)**Example:** 339 339 ))) 340 340 ... ... @@ -344,32 +344,35 @@ 344 344 345 345 [[image:image-20220601144149-6.png]] 346 346 347 - **DOWNLINK**343 +DOWNLINK 348 348 349 349 346 + 350 350 [[image:image-20220601143803-3.png]] 351 351 352 - **DOWNLINK**349 +DOWNLINK 353 353 354 354 352 + 355 355 [[image:image-20220601144053-5.png]] 356 356 357 - **DOWNLINK**355 +DOWNLINK 358 358 359 359 358 + 360 360 [[image:image-20220601143921-4.png]] 361 361 362 - **DOWNLINK**361 +DOWNLINK 363 363 364 364 364 + 365 365 [[image:image-20220601142805-5.png]] 366 366 367 -**DOWNLINK** 367 +DOWNLINK 368 + 368 368 370 +=== **1.3.4 How to configure and output commands for RS485 to USB** === 369 369 370 -=== 1.3.4 How to configure and output commands for RS485 to USB === 371 - 372 - 373 373 ((( 374 374 This step is not necessary, it is just to show how to use a normal RS485 to USB adapter to connect to the meter to check the input and output. This can be used to test the connection and RS485 command of the meter without RS485-LN. 375 375 ))) ... ... @@ -388,21 +388,26 @@ 388 388 389 389 ((( 390 390 check digit: Even 390 + 391 + 391 391 ))) 392 392 393 393 [[image:image-20220527093708-21.png]] 394 394 395 - **USB**396 +USB 396 396 397 397 399 + 398 398 [[image:image-20220527093747-22.png]] 399 399 400 - **USB**402 +USB 401 401 402 402 403 403 404 404 ((( 405 405 The configuration command is consistent with the AT command, input the hexadecimal command directly into the serial port, and the serial port will output the command. 408 + 409 + 406 406 ))) 407 407 408 408 ((( ... ... @@ -417,10 +417,10 @@ 417 417 418 418 [[image:image-20220527093821-23.png]] 419 419 420 - **USB**424 +USB 421 421 422 422 423 -=== 1.3.5 How to configure multiple devices and modify device addresses === 427 +=== **1.3.5 How to configure multiple devices and modify device addresses** === 424 424 425 425 426 426 If users need to read the parameters of multiple energy meters, they need to modify the device address, because the default device address of each energy meter is 01. ... ... @@ -436,7 +436,6 @@ 436 436 437 437 (% style="color:blue" %)**Example**(%%): These two meters are examples of setting parameters and device addresses. 438 438 439 - 440 440 [[image:image-20220527093950-25.png]] 441 441 442 442 ... ... @@ -451,7 +451,7 @@ 451 451 452 452 ((( 453 453 ((( 454 -We can use (% style="color:blue" %)**AT+CFGDEV**(%%)to set the device address.457 +We can use **AT+CFGDEV** to set the device address. 455 455 ))) 456 456 ))) 457 457 ... ... @@ -469,9 +469,9 @@ 469 469 **AT+CFGDEV:01 10 00 61 00 01 02 00 02,1** 470 470 ))) 471 471 472 -* 01: 475 +* 01:device adaress 473 473 474 -* 10: 477 +* 10:function code 475 475 476 476 * 00 61:Register address 477 477 ... ... @@ -495,14 +495,14 @@ 495 495 [[image:image-20220601142607-4.png]] 496 496 497 497 498 - (% style="color:blue" %)**PAYLOAD:501 +**PAYLOAD:01 08 DF 43 62** 499 499 500 500 * 08 DF is the valid value of the meter with device address 02. 501 501 * 43 62 is the valid value of the meter with device address 01. 502 502 503 -(% style="display:none" %) (%%) 504 504 505 505 508 + 506 506 == 1.4 Example 4: Circuit Breaker Remote Open Close == 507 507 508 508 ... ... @@ -512,21 +512,22 @@ 512 512 513 513 [[image:image-20220527094330-30.png]] 514 514 515 - **Connection**518 +Connection 516 516 517 517 518 -* Configure Documen: [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/ ||_mstmutation="1"]]521 +* Configure Documen: [[Circuit Breaker Remote Open Close>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Circuit_Breaker_Remote_Open_Close/]] 519 519 520 520 521 521 525 + 522 522 == 1.5 Example 5: SEM Three Energy Meter with RS485-BL or RS485-LN == 523 523 524 524 525 525 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-BL to connect to SEM Three Energy Meter and send the data to mobile phone for remote minitor. The structure is like below: 526 526 527 -* Configure Document For RS485-BL: [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Application_Note/&file=Dragino%20RS485BL%20and%20pickdata%20SEM%20Three%20v1.pdf||_mstmutation="1" style="background-color: rgb(255, 255, 255);"]] 531 +* Configure Document For RS485-BL: [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/RS485-BL/Application_Note/&file=Dragino%20RS485BL%20and%20pickdata%20SEM%20Three%20v1.pdf||style="background-color: rgb(255, 255, 255);"]] 532 +* Configure Document for RS485-LN: [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/SEM_Three_Energy_Meter/&file=SEM%20three%20and%20Dragino%20RS485-LN%20v1.pdf]] 528 528 529 -* Configure Document for RS485-LN: [[Connect to SEM Three>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/SEM_Three_Energy_Meter/&file=SEM%20three%20and%20Dragino%20RS485-LN%20v1.pdf||_mstmutation="1"]] 530 530 531 531 532 532 ... ... @@ -535,31 +535,17 @@ 535 535 536 536 This instruction is provided by Xavier Florensa Berenguer from [[NORIA GRUPO DE COMPRAS>>url:http://www.gruponovelec.com/]]. It is to show how to use RS485-LN to connect to CEM C31 485-T1-MID and send the data for remote minitor. The structure is like below: 537 537 538 -* Configure Document For RS485-LN: [[CEM C31 485-T1-MID>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/ELECTRICAL%20CABINET/&file=ELECTRICAL%20CABINET%20READINGS.pdf|| _mstmutation="1" style="background-color: rgb(255, 255, 255);"]]542 +* Configure Document For RS485-LN: [[CEM C31 485-T1-MID>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/ELECTRICAL%20CABINET/&file=ELECTRICAL%20CABINET%20READINGS.pdf||style="background-color: rgb(255, 255, 255);"]] 539 539 540 540 541 541 546 + 542 542 == 1.7 Example 7: Schneider Electric PLC M221 with RS485-BL == 543 543 544 544 545 545 [[image:image-20220527094556-31.png]] 546 546 547 - 548 548 Network Structure 549 549 550 -* [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]] 551 551 552 - 553 - 554 -== 1.8 Example 8: This sketch is supposed to test Dragino RS485-BL (Modbus master), using an Arduino UNO as a Modbus slave. == 555 - 556 - 557 -This sketch uses 4 registers: some of them can be set by Dragino with a command, another is used to store value from a DS18B20 temperature sensor, or a random generated number. All data is 16bit uint, but the sketch shows also how to represent booleans and negative numbers. 558 - 559 -In the next days I will be adding more documentation, but I think it already explains users how to build their own modbus sensor to pair with Dragino RS485-BL. 560 - 561 -This is released the code under GNU LGPL licence on Github: 562 - 563 -[[https:~~/~~/github.com/zorbaproject/ArduinoModbusForDraginoRS485>>url:https://github.com/zorbaproject/ArduinoModbusForDraginoRS485]] 564 - 565 - 555 +* [[Reference Instruction>>url:https://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Schneider%20Electric%20PLC/]]