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... ... @@ -1,33 +1,19 @@ 1 -(% class="wikigeneratedid" %) 2 - **Contents:** 1 += 1. Introduction = 3 3 4 -{{toc/}} 5 - 6 - 7 - 8 - 9 - 10 - 11 -= **1. Introduction** = 12 - 13 13 This article provide the examples for RS485-LN to connect to different type of RS485 sensors. 14 14 5 +== 1.1 Example 1: Connect to Leak relay and VFD == 15 15 16 -== **1.1 Example 1: Connect to Leak relay and VFD** == 17 - 18 18 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: 19 19 20 -[[image:image -20220527091852-1.png]]9 +[[image:https://wiki.dragino.com/images/thumb/5/5c/RS485_01.png/600px-RS485_01.png||height="297" width="534"]] 21 21 22 22 Connection 23 23 13 +[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %) 24 24 25 - 26 -[[image:image-20220527091942-2.png]](% style="display:none" %) 27 - 28 28 Connection 29 29 30 - 31 31 Related documents: 32 32 33 33 * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure ... ... @@ -35,30 +35,25 @@ 35 35 * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]] 36 36 37 37 24 +== 1.2 Example 2: Connect to Pulse Counter == 38 38 39 -== **1.2 Example 2: Connect to Pulse Counter** == 40 - 41 41 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: 42 42 43 -[[image:image -20220527092058-3.png]]28 +[[image:https://wiki.dragino.com/images/thumb/3/34/RS485_02_1.png/600px-RS485_02_1.png||height="364" width="600"]] 44 44 45 45 Connection 46 46 32 +[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]] 47 47 48 - 49 -[[image:image-20220527092146-4.png]] 50 - 51 51 Connection 52 52 53 - 54 54 * [[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/]] : Configure Document 55 55 * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]] 56 56 57 -== == 58 58 59 -== **1.3 Example3: Use RS485-LN with energy meters**==40 +== 1.3 Example3: Use RS485-LN with energy meters == 60 60 61 -=== **1.3.1 OverView**===42 +=== 1.3.1 OverView === 62 62 63 63 ((( 64 64 **Note**:The specifications of each energy meter are different, please refer to your own energy meter specifications. ... ... @@ -68,57 +68,40 @@ 68 68 This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter. 69 69 ))) 70 70 71 -[[image:image -20220527092419-5.png]]52 +[[image:https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]] 72 72 73 73 Connection1 74 74 75 - 76 - 77 -((( 78 78 How to connect with Energy Meter: 79 -))) 80 80 81 -((( 82 82 Follow the instructions of the electric energy meter to connect the phase line and the neutral line, and then connect 485A+ and 485B- to RS485A and RA485B of RS485-LN respectively. 83 -))) 84 84 85 -((( 86 86 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below 87 -))) 88 88 89 -((( 90 90 Power Source VIN to RS485-LN VIN+ 91 -))) 92 92 93 -((( 94 94 Power Source GND to RS485-LN VIN- 95 -))) 96 96 97 -((( 98 98 Once there is power, the RS485-LN will be on. 99 -))) 100 100 101 -[[image:image -20220527092514-6.png]]68 +[[image:https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="450" width="600"]] 102 102 103 103 Connection2 104 104 72 +[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]] 105 105 106 -[[image:image-20220527092555-7.png]] 107 - 108 108 Connection3 109 109 110 110 111 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands**===77 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 112 112 113 -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.79 +If the user needs to read the parameters of the electric energy meter and use the modbus command, 114 114 115 - [[image:image-20220527092629-8.png]]81 +please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter. 116 116 83 +[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]] 117 117 118 -(% class="box infomessage" %) 119 -((( 120 -**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A 121 -))) 85 +Example:AT+COMMAND1=01 03 00 00 00 01 84 0A 122 122 123 123 * The first byte : slave address code (=001~247) 124 124 * The second byte : read register value function code ... ... @@ -126,14 +126,9 @@ 126 126 * 5th and 6th bytes: Number of registers to read 127 127 * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6. 128 128 129 -((( 130 130 How to parse the reading of the return command of the parameter: 131 -))) 132 132 133 -(% class="box infomessage" %) 134 -((( 135 -**Example:** RETURN1:01 03 02 08 FD 7E 05 136 -))) 95 +Example:RETURN1:01 03 02 08 FD 7E 05 137 137 138 138 * The first byte ARD: slave address code (=001~254) 139 139 * The second byte: Return to read function code ... ... @@ -142,34 +142,23 @@ 142 142 * The 6th and 7th bytes: CRC16 checksum 143 143 * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage. 144 144 145 -(% class="wikigeneratedid" %) 146 -((( 147 - 148 -))) 149 149 150 -=== **1.3.3 How to configure RS485-LN and parse output commands**===105 +=== 1.3.3 How to configure RS485-LN and parse output commands === 151 151 152 152 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 153 153 109 +==== via AT COMMAND: ==== 154 154 155 - ====**1.3.3.1via ATOMMAND:**====111 +First, we can use AT+CFGDEV to get the return value, and we can also judge whether the input parameters are correct. 156 156 157 -First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct. 158 - 159 -((( 160 160 If the configured parameters and commands are incorrect, the return value is not obtained. 161 -))) 162 162 163 -[[image:image -20220527092748-9.png]]115 +[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]] 164 164 165 165 AT COMMAND 166 166 119 +AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 167 167 168 -(% class="box infomessage" %) 169 -((( 170 - AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 171 -))) 172 - 173 173 a: length for the return of AT+COMMAND 174 174 175 175 b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections. ... ... @@ -176,273 +176,159 @@ 176 176 177 177 c: define the position for valid value. 178 178 179 -[[image:image -20220527092936-10.png]]127 +[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]] 180 180 181 181 AT COMMAND 182 182 183 - 184 184 PAYLOAD is available after the valid value is intercepted. 185 185 133 +[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]] 186 186 187 -[[image:image-20220527093059-11.png]] 188 - 189 189 AT COMMAND 190 190 191 - 192 192 You can get configured PAYLOAD on TTN. 193 193 194 -[[image:image -20220527093133-12.png]]139 +[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]] 195 195 196 -((( 197 197 AT COMMAND 198 -))) 199 199 200 -((( 201 - 202 -))) 143 +Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 203 203 204 -((( 205 -(% style="color:#4f81bd" %)**Example**: 206 - 207 -CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 208 -))) 209 - 210 -((( 211 211 RETURN1:01 03 02 00 02 39 85 00 00(return data) 212 -))) 213 213 214 -((( 215 215 AT+DATACUT1:9,1,4+5+6+7 Take the return value 00 02 39 85 as the valid value of reading current data and used to splice payload. 216 216 217 - 218 -))) 219 - 220 -((( 221 221 CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1 222 -))) 223 223 224 -((( 225 225 RETURN2:01 03 02 08 DC BE 1D(return data) 226 -))) 227 227 228 -((( 229 229 AT+DATACUT2:7,1,4+5 Take the return value 08 DC as the valid value of reading voltage data and used to splice payload. 230 230 231 - 232 -))) 233 - 234 -((( 235 235 CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1 236 -))) 237 237 238 -((( 239 239 RETURN3:01 03 04 00 00 00 44 FA 00(return data) 240 -))) 241 241 242 -((( 243 243 AT+DATACUT3:9,1,4+5+6+7 Take the return value 00 00 00 44 as the valid value of reading total active energy data and used to splice payload. 244 -))) 245 245 246 -((( 247 247 Payload:01 00 02 39 85 08 DC 00 00 00 44 248 -))) 249 249 250 -[[image:image -20220527093204-13.png]]163 +[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]] 251 251 252 252 AT COMMAND 253 253 167 +01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy. 254 254 255 - (% style="color:#4f81bd" %)**01 iseviceaddress,00 02 isthe current, 08is thevoltage,0000 00 44isthetotal activeergy.**169 +[[~[~[image:https://wiki.dragino.com/images/thumb/b/b8/AT_COMMAND11.png/600px-AT_COMMAND11.png~|~|height="271" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:AT_COMMAND11.png]] 256 256 257 -[[image:image-20220527093251-14.png]] 258 - 259 259 AT COMMAND 260 260 173 +==== 1.3.3.1 via LoRaWAN DOWNLINK ==== 261 261 262 - ==== **1.3.3.2 viaLoRaWAN**====175 +[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]] 263 263 264 -[[image:image-20220527093358-15.png]] 265 - 266 -((( 267 267 DOWNLINK 268 -))) 269 269 270 -((( 271 - 272 -))) 179 +Type Code 0xAF 273 273 274 -((( 275 -(% style="color:#4f81bd" %)**Type Code 0xAF** 276 -))) 277 - 278 -((( 279 -(% class="box infomessage" %) 280 -((( 281 281 0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 282 -))) 283 -))) 284 284 285 -((( 286 286 Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 287 -))) 288 288 289 -((( 290 290 Format: AF MM NN LL XX XX XX XX YY 291 -))) 292 292 293 -((( 294 294 Where: 295 -))) 296 296 297 -((( 298 298 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 299 -))) 300 300 301 -((( 302 302 NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 303 -))) 304 304 305 -((( 306 306 LL: The length of AT+COMMAND or AT+DATACUT command 307 -))) 308 308 309 -((( 310 310 XX XX XX XX: AT+COMMAND or AT+DATACUT command 311 -))) 312 312 313 -((( 314 314 YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN 315 -))) 316 316 317 -((( 318 318 will execute an uplink after got this command. 319 -))) 320 320 321 -((( 322 -(% style="color:#4f81bd" %)**Example:** 323 -))) 201 +Example: 324 324 325 -((( 326 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1 327 -))) 203 +AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1 328 328 329 -[[image:image -20220527093430-16.png]]205 +[[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]] 330 330 331 331 DOWNLINK 332 332 209 +[[~[~[image:https://wiki.dragino.com/images/thumb/2/20/DOWNLINK_METER3.png/600px-DOWNLINK_METER3.png~|~|height="105" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER3.png]] 333 333 334 -[[image:image-20220527093508-17.png]] 335 - 336 336 DOWNLINK 337 337 213 +[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]] 338 338 339 -[[image:image-20220527093530-18.png]] 340 - 341 341 DOWNLINK 342 342 217 +[[~[~[image:https://wiki.dragino.com/images/thumb/3/39/DOWNLINK_METER5.png/600px-DOWNLINK_METER5.png~|~|height="176" width="600"~]~]>>url:https://wiki.dragino.com/index.php/File:DOWNLINK_METER5.png]] 343 343 344 -[[image:image-20220527093607-19.png]] 345 - 346 346 DOWNLINK 347 347 221 +[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]] 348 348 349 -[[image:image-20220527093628-20.png]] 350 - 351 351 DOWNLINK 352 352 353 353 354 -=== **1.3.4 How to configure and output commands for RS485 to USB**===226 +=== 1.3.4 How to configure and output commands for RS485 to USB === 355 355 356 -((( 357 357 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. 358 -))) 359 359 360 -((( 361 361 First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter. 362 -))) 363 363 364 -((( 365 365 Open the serial port debugging, set the send and receive to HEX. 366 -))) 367 367 368 -((( 369 369 Baud rate: 9600 370 -))) 371 371 372 -((( 373 373 check digit: Even 374 -))) 375 375 376 -[[image:image -20220527093708-21.png]]238 +[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]] 377 377 378 378 USB 379 379 242 +[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]] 380 380 381 -[[image:image-20220527093747-22.png]] 382 - 383 383 USB 384 384 385 - 386 -((( 387 387 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. 388 -))) 389 389 390 -((( 391 -(% style="color:#4f81bd" %)**Example:** (%%)input:01 03 00 31 00 02 95 c4 392 -))) 248 +Example:input:01 03 00 31 00 02 95 c4 393 393 394 -((( 395 - output:01 03 04 00 00 00 42 7A 02 396 -))) 250 +{{{ output:01 03 04 00 00 00 42 7A 02 251 +}}} 397 397 398 -[[image:image -20220527093821-23.png]]253 +[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]] 399 399 400 400 USB 401 401 257 +=== 1.3.5 How to configure multiple devices and modify device addresses === 402 402 403 -=== **1.3.5 How to configure multiple devices and modify device addresses** === 404 - 405 405 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. 406 406 407 -((( 408 -((( 409 409 Set the device address according to the parameters in the appendix of the MODBUS communication protocol. 410 -))) 411 -))) 412 412 413 -[[image:image -20220527093849-24.png]]263 +[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]] 414 414 265 +Example:These two meters are examples of setting parameters and device addresses. 415 415 416 - **Example**:Thesetwors arexamples of settingparametersand deviceaddresses.267 +[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]] 417 417 418 -[[image:image -20220527093950-25.png]]269 +[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]] 419 419 420 -[[image:image-20220527094028-26.png]] 421 - 422 -((( 423 -((( 424 424 First of all, since the default device address of the energy meter is 01, the configuration of two energy meters will conflict, so we first connect an energy meter and configure the device address. 425 -))) 426 -))) 427 427 428 -((( 429 -((( 430 430 We can use AT+CFGDEV to set the device address. 431 -))) 432 -))) 433 433 434 -((( 435 -((( 436 436 We modify the device address 01 of the first energy meter to 02. 437 -))) 438 -))) 439 439 440 -[[image:image -20220527094100-27.png]]277 +[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]] 441 441 442 -(% class="box infomessage" %) 443 -((( 444 -**AT+CFGDEV:01 10 00 61 00 01 02 00 02,1** 445 -))) 279 +AT+CFGDEV:01 10 00 61 00 01 02 00 02,1 446 446 447 447 * 01:device adaress 448 448 ... ... @@ -464,13 +464,12 @@ 464 464 465 465 Its default device address is 01, and the following are the parameters for configuring two energy meters. 466 466 467 -[[image:image -20220527094150-28.png]]301 +[[image:https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]] 468 468 303 +[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]] 469 469 470 - [[image:image-20220527094224-29.png]]305 +PAYLOAD:01 08 DF 43 62 471 471 472 -**PAYLOAD:01 08 DF 43 62** 473 - 474 474 * 08 DF is the valid value of the meter with device address 02. 475 475 * 43 62 is the valid value of the meter with device address 01. 476 476 ... ... @@ -479,7 +479,7 @@ 479 479 480 480 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 SCHNEIDER SMART and Monitor and control your cabinet remotely with no wires and with Dragino RS485-LN LoRaWAN technology. The structure is like below: 481 481 482 -[[image:image -20220527094330-30.png]]315 +[[image:https://wiki.dragino.com/images/thumb/f/fa/RS485_04_2.png/600px-RS485_04_2.png||height="336" width="600"]] 483 483 484 484 Connection 485 485 ... ... @@ -494,6 +494,7 @@ 494 494 495 495 * [[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]] : Configure Document for RS485-LN 496 496 330 + 497 497 == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN == 498 498 499 499 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: ... ... @@ -500,9 +500,10 @@ 500 500 501 501 * [[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]] : Configure Document For RS485-LN 502 502 337 + 503 503 == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL == 504 504 505 -[[image:image -20220527094556-31.png]]340 +[[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]] 506 506 507 507 Network Structure 508 508
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