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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 ... ... @@ -35,91 +35,64 @@ 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 -((( 64 -**Note**:The specifications of each energy meter are different, please refer to your own energy meter specifications. 65 -))) 44 +Note:The specifications of each energy meter are different, please refer to your own energy meter specifications. 66 66 67 -((( 68 68 This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter. 69 -))) 70 70 71 -[[image:image -20220527092419-5.png]]48 +[[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]]64 +[[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 68 +[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]] 105 105 106 - 107 -[[image:image-20220527092555-7.png]] 108 - 109 109 Connection3 110 110 111 111 112 -=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands**===73 +=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 113 113 114 -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.75 +If the user needs to read the parameters of the electric energy meter and use the modbus command, 115 115 116 - [[image:image-20220527092629-8.png]]77 +please refer to the appendix of the MODBUS communication protocol in the user manual of the energy meter. 117 117 79 +[[image:https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]] 118 118 119 -(% class="box infomessage" %) 120 -((( 121 -**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A 122 -))) 81 +Example:AT+COMMAND1=01 03 00 00 00 01 84 0A 123 123 124 124 * The first byte : slave address code (=001~247) 125 125 * The second byte : read register value function code ... ... @@ -127,14 +127,9 @@ 127 127 * 5th and 6th bytes: Number of registers to read 128 128 * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6. 129 129 130 -((( 131 131 How to parse the reading of the return command of the parameter: 132 -))) 133 133 134 -(% class="box infomessage" %) 135 -((( 136 -**Example:** RETURN1:01 03 02 08 FD 7E 05 137 -))) 91 +Example:RETURN1:01 03 02 08 FD 7E 05 138 138 139 139 * The first byte ARD: slave address code (=001~254) 140 140 * The second byte: Return to read function code ... ... @@ -143,316 +143,182 @@ 143 143 * The 6th and 7th bytes: CRC16 checksum 144 144 * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage. 145 145 146 -(% class="wikigeneratedid" %) 147 -((( 148 - 149 -))) 150 150 151 -=== **1.3.3 How to configure RS485-LN and parse output commands**===101 +=== 1.3.3 How to configure RS485-LN and parse output commands === 152 152 153 153 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 154 154 105 +==== via AT COMMAND: ==== 155 155 156 - ====**1.3.3.1via ATOMMAND:**====107 +First, we can use AT+CFGDEV to get the return value, and we can also judge whether the input parameters are correct. 157 157 158 -First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct. 159 - 160 -((( 161 161 If the configured parameters and commands are incorrect, the return value is not obtained. 162 -))) 163 163 164 -[[image:image -20220527092748-9.png]]111 +[[image:https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]] 165 165 166 166 AT COMMAND 167 167 115 +AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 168 168 169 -(% class="box infomessage" %) 170 -((( 171 - AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 172 -))) 117 +a: length for the return of AT+COMMAND 173 173 174 - a:ngthforthe returnofAT+COMMAND119 +b:1: grab valid value by byte, max 6 bytes. 2: grab valid value by bytes section, max 3 sections. 175 175 176 - b:1: grab validvalueby byte,max 6 bytes;2: grabvalid valueby bytes section, max 3 sections.121 +c: define the position for valid value. 177 177 178 - c: definetheposition forvalid value.123 +[[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]] 179 179 180 -[[image:image-20220527092936-10.png]] 181 - 182 182 AT COMMAND 183 183 184 - 185 - 186 186 PAYLOAD is available after the valid value is intercepted. 187 187 129 +[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]] 188 188 189 -[[image:image-20220527093059-11.png]] 190 - 191 191 AT COMMAND 192 192 193 - 194 - 195 195 You can get configured PAYLOAD on TTN. 196 196 197 -[[image:image -20220527093133-12.png]]135 +[[image:https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]] 198 198 199 -((( 200 200 AT COMMAND 201 -))) 202 202 203 -((( 204 - 205 -))) 139 +Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 206 206 207 -((( 208 -(% style="color:#4f81bd" %)**Example**: 209 - 210 -CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 211 -))) 212 - 213 -((( 214 214 RETURN1:01 03 02 00 02 39 85 00 00(return data) 215 -))) 216 216 217 -((( 218 218 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. 219 219 220 - 221 -))) 222 - 223 -((( 224 224 CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1 225 -))) 226 226 227 -((( 228 228 RETURN2:01 03 02 08 DC BE 1D(return data) 229 -))) 230 230 231 -((( 232 232 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. 233 233 234 - 235 -))) 236 - 237 -((( 238 238 CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1 239 -))) 240 240 241 -((( 242 242 RETURN3:01 03 04 00 00 00 44 FA 00(return data) 243 -))) 244 244 245 -((( 246 246 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. 247 -))) 248 248 249 -((( 250 250 Payload:01 00 02 39 85 08 DC 00 00 00 44 251 -))) 252 252 253 -[[image:image -20220527093204-13.png]]159 +[[image:https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]] 254 254 255 255 AT COMMAND 256 256 163 +01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy. 257 257 258 - (% style="color:#4f81bd" %)**01 iseviceaddress,00 02 isthe current, 08is thevoltage,0000 00 44isthetotal activeergy.**165 +[[~[~[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]] 259 259 260 - 261 - 262 -[[image:image-20220527093251-14.png]] 263 - 264 264 AT COMMAND 265 265 169 +==== 1.3.3.1 via LoRaWAN DOWNLINK ==== 266 266 267 - ==== **1.3.3.2 viaLoRaWAN**====171 +[[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423" width="600"]] 268 268 269 -[[image:image-20220527093358-15.png]] 270 - 271 -((( 272 272 DOWNLINK 273 -))) 274 274 275 -((( 276 - 277 -))) 175 +Type Code 0xAF 278 278 279 -((( 280 -(% style="color:#4f81bd" %)**Type Code 0xAF** 281 -))) 282 - 283 -((( 284 -(% class="box infomessage" %) 285 -((( 286 286 0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 287 -))) 288 -))) 289 289 290 -((( 291 291 Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 292 -))) 293 293 294 -((( 295 295 Format: AF MM NN LL XX XX XX XX YY 296 -))) 297 297 298 -((( 299 299 Where: 300 -))) 301 301 302 -((( 303 303 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 304 -))) 305 305 306 -((( 307 307 NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 308 -))) 309 309 310 -((( 311 311 LL: The length of AT+COMMAND or AT+DATACUT command 312 -))) 313 313 314 -((( 315 315 XX XX XX XX: AT+COMMAND or AT+DATACUT command 316 -))) 317 317 318 -((( 319 319 YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN 320 -))) 321 321 322 -((( 323 323 will execute an uplink after got this command. 324 -))) 325 325 326 -((( 327 - 197 +Example: 328 328 329 -(% style="color:#4f81bd" %)**Example:** 330 -))) 199 +AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1 331 331 332 -((( 333 -**AF 03 01 06 0A 05 00 04 00 01 00**: Same as AT+COMMAND3=0A 05 00 04 00 01,1 334 -))) 201 +[[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]] 335 335 336 -[[image:image-20220527093430-16.png]] 337 - 338 338 DOWNLINK 339 339 205 +[[~[~[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]] 340 340 341 - 342 -[[image:image-20220527093508-17.png]] 343 - 344 344 DOWNLINK 345 345 209 +[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]] 346 346 347 - 348 -[[image:image-20220527093530-18.png]] 349 - 350 350 DOWNLINK 351 351 213 +[[~[~[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]] 352 352 353 - 354 -[[image:image-20220527093607-19.png]] 355 - 356 356 DOWNLINK 357 357 217 +[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]] 358 358 359 -[[image:image-20220527093628-20.png]] 360 - 361 361 DOWNLINK 362 362 363 363 364 -=== **1.3.4 How to configure and output commands for RS485 to USB**===222 +=== 1.3.4 How to configure and output commands for RS485 to USB === 365 365 366 -((( 367 367 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. 368 -))) 369 369 370 -((( 371 371 First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter. 372 -))) 373 373 374 -((( 375 375 Open the serial port debugging, set the send and receive to HEX. 376 -))) 377 377 378 -((( 379 379 Baud rate: 9600 380 -))) 381 381 382 -((( 383 383 check digit: Even 384 -))) 385 385 386 -[[image:image -20220527093708-21.png]]234 +[[image:https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]] 387 387 388 388 USB 389 389 238 +[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]] 390 390 391 -[[image:image-20220527093747-22.png]] 392 - 393 393 USB 394 394 395 - 396 -((( 397 397 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. 398 -))) 399 399 400 -((( 401 -(% style="color:#4f81bd" %)**Example:** (%%)input:01 03 00 31 00 02 95 c4 402 -))) 244 +Example:input:01 03 00 31 00 02 95 c4 403 403 404 -((( 405 - output:01 03 04 00 00 00 42 7A 02 406 -))) 246 +{{{ output:01 03 04 00 00 00 42 7A 02 247 +}}} 407 407 408 -[[image:image -20220527093821-23.png]]249 +[[image:https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]] 409 409 410 410 USB 411 411 253 +=== 1.3.5 How to configure multiple devices and modify device addresses === 412 412 413 -=== **1.3.5 How to configure multiple devices and modify device addresses** === 414 - 415 415 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. 416 416 417 -((( 418 -((( 419 419 Set the device address according to the parameters in the appendix of the MODBUS communication protocol. 420 -))) 421 -))) 422 422 423 -[[image:image -20220527093849-24.png]]259 +[[image:https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]] 424 424 261 +Example:These two meters are examples of setting parameters and device addresses. 425 425 426 - **Example**:Thesetwors arexamples of settingparametersand deviceaddresses.263 +[[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Double meter1.jpg" height="800" width="600"]] 427 427 428 -[[image:image -20220527093950-25.png]]265 +[[image:https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]] 429 429 430 -[[image:image-20220527094028-26.png]] 431 - 432 -((( 433 -((( 434 434 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. 435 -))) 436 -))) 437 437 438 -((( 439 -((( 440 440 We can use AT+CFGDEV to set the device address. 441 -))) 442 -))) 443 443 444 -((( 445 -((( 446 446 We modify the device address 01 of the first energy meter to 02. 447 -))) 448 -))) 449 449 450 -[[image:image -20220527094100-27.png]]273 +[[image:https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]] 451 451 452 -(% class="box infomessage" %) 453 -((( 454 -**AT+CFGDEV:01 10 00 61 00 01 02 00 02,1** 455 -))) 275 +AT+CFGDEV:01 10 00 61 00 01 02 00 02,1 456 456 457 457 * 01:device adaress 458 458 ... ... @@ -474,13 +474,12 @@ 474 474 475 475 Its default device address is 01, and the following are the parameters for configuring two energy meters. 476 476 477 -[[image:image -20220527094150-28.png]]297 +[[image:https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]] 478 478 299 +[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]] 479 479 480 - [[image:image-20220527094224-29.png]]301 +PAYLOAD:01 08 DF 43 62 481 481 482 -**PAYLOAD:01 08 DF 43 62** 483 - 484 484 * 08 DF is the valid value of the meter with device address 02. 485 485 * 43 62 is the valid value of the meter with device address 01. 486 486 ... ... @@ -489,7 +489,7 @@ 489 489 490 490 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: 491 491 492 -[[image:image -20220527094330-30.png]]311 +[[image:https://wiki.dragino.com/images/thumb/f/fa/RS485_04_2.png/600px-RS485_04_2.png||height="336" width="600"]] 493 493 494 494 Connection 495 495 ... ... @@ -504,6 +504,7 @@ 504 504 505 505 * [[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 506 506 326 + 507 507 == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN == 508 508 509 509 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: ... ... @@ -510,9 +510,10 @@ 510 510 511 511 * [[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 512 512 333 + 513 513 == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL == 514 514 515 -[[image:image -20220527094556-31.png]]336 +[[image:https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]] 516 516 517 517 Network Structure 518 518
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