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... ... @@ -1,19 +1,33 @@ 1 -= 1. Introduction = 1 +(% class="wikigeneratedid" %) 2 + **Contents:** 2 2 4 +{{toc/}} 5 + 6 + 7 + 8 + 9 + 10 + 11 += **1. Introduction** = 12 + 3 3 This article provide the examples for RS485-LN to connect to different type of RS485 sensors. 4 4 5 -== 1.1 Example 1: Connect to Leak relay and VFD == 6 6 16 +== **1.1 Example 1: Connect to Leak relay and VFD** == 17 + 7 7 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: 8 8 9 -[[image: https://wiki.dragino.com/images/thumb/5/5c/RS485_01.png/600px-RS485_01.png||height="297" width="534"]]20 +[[image:image-20220527091852-1.png]] 10 10 11 11 Connection 12 12 13 -[[image:https://wiki.dragino.com/images/thumb/f/f2/RS485_02.png/600px-RS485_02.png||height="743" width="528"]](% style="display:none" %) 14 14 25 + 26 +[[image:image-20220527091942-2.png]](% style="display:none" %) 27 + 15 15 Connection 16 16 30 + 17 17 Related documents: 18 18 19 19 * [[Solar Pump with Dragino>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/Relay_VFD/]] : System Structure ... ... @@ -21,25 +21,30 @@ 21 21 * [[Video Demo>>url:https://www.youtube.com/watch?v=TAFZ5eaf-MY&t=6s&ab_channel=XavierFlorensaBerenguer]] 22 22 23 23 24 -== 1.2 Example 2: Connect to Pulse Counter == 25 25 39 +== **1.2 Example 2: Connect to Pulse Counter** == 40 + 26 26 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: 27 27 28 -[[image: https://wiki.dragino.com/images/thumb/3/34/RS485_02_1.png/600px-RS485_02_1.png||height="364" width="600"]]43 +[[image:image-20220527092058-3.png]] 29 29 30 30 Connection 31 31 32 -[[image:https://wiki.dragino.com/images/thumb/5/5f/RS485_02_2.png/600px-RS485_02_2.png||height="337" width="600"]] 33 33 48 + 49 +[[image:image-20220527092146-4.png]] 50 + 34 34 Connection 35 35 53 + 36 36 * [[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 37 37 * [[Dragino Solution in Farm>>url:http://www.dragino.com/downloads/index.php?dir=RS485-LN/Application_Note/&file=Dragino%20on%20Farms.pptx]] 38 38 57 +== == 39 39 40 -== 1.3 Example3: Use RS485-LN with energy meters == 59 +== **1.3 Example3: Use RS485-LN with energy meters** == 41 41 42 -=== 1.3.1 OverView === 61 +=== **1.3.1 OverView** === 43 43 44 44 ((( 45 45 **Note**:The specifications of each energy meter are different, please refer to your own energy meter specifications. ... ... @@ -49,39 +49,59 @@ 49 49 This example describes a single-phase meter.This is the connection between the RS485-LN and the energy meter. 50 50 ))) 51 51 52 -[[image: https://wiki.dragino.com/images/thumb/f/f4/Meter1.jpg/600px-Meter1.jpg||height="800" width="600"]]71 +[[image:image-20220527092419-5.png]] 53 53 54 54 Connection1 55 55 75 + 76 + 77 +((( 56 56 How to connect with Energy Meter: 79 +))) 57 57 81 +((( 58 58 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 +))) 59 59 85 +((( 60 60 The RS485-LN can be powered by 7 ~~ 24V DC power source. Connection as below 87 +))) 61 61 89 +((( 62 62 Power Source VIN to RS485-LN VIN+ 91 +))) 63 63 93 +((( 64 64 Power Source GND to RS485-LN VIN- 95 +))) 65 65 97 +((( 66 66 Once there is power, the RS485-LN will be on. 99 +))) 67 67 68 -[[image: https://wiki.dragino.com/images/thumb/1/15/Meter2.jpg/600px-Meter2.jpg||height="450" width="600"]]101 +[[image:image-20220527092514-6.png]] 69 69 70 70 Connection2 71 71 72 -[[image:https://wiki.dragino.com/images/thumb/a/a5/Meter3.jpg/600px-Meter3.jpg||height="800" width="600"]] 73 73 106 + 107 +[[image:image-20220527092555-7.png]] 108 + 74 74 Connection3 75 75 76 76 77 -=== 1.3.2 How to use the parameters of the energy meter and MODBUS commands === 112 +=== **1.3.2 How to use the parameters of the energy meter and MODBUS commands** === 78 78 79 79 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. 80 80 81 -[[image: https://wiki.dragino.com/images/thumb/3/35/Meter4.png/600px-Meter4.png||alt="Meter4.png" height="193" width="600"]]116 +[[image:image-20220527092629-8.png]] 82 82 83 -Example:AT+COMMAND1=01 03 00 00 00 01 84 0A 84 84 119 +(% class="box infomessage" %) 120 +((( 121 +**Example:** AT+COMMAND1=01 03 00 00 00 01 84 0A 122 +))) 123 + 85 85 * The first byte : slave address code (=001~247) 86 86 * The second byte : read register value function code 87 87 * 3rd and 4th bytes: start address of register to be read ... ... @@ -88,9 +88,14 @@ 88 88 * 5th and 6th bytes: Number of registers to read 89 89 * 7th and 8th bytes: CRC16 checksum from bytes 1 to 6. 90 90 130 +((( 91 91 How to parse the reading of the return command of the parameter: 132 +))) 92 92 93 -Example:RETURN1:01 03 02 08 FD 7E 05 134 +(% class="box infomessage" %) 135 +((( 136 +**Example:** RETURN1:01 03 02 08 FD 7E 05 137 +))) 94 94 95 95 * The first byte ARD: slave address code (=001~254) 96 96 * The second byte: Return to read function code ... ... @@ -99,182 +99,319 @@ 99 99 * The 6th and 7th bytes: CRC16 checksum 100 100 * 08 FD is register data. Use short integer 16 bits to convert to decimal, get 2301, then 230.1V is the voltage. 101 101 146 +(% class="wikigeneratedid" %) 147 +((( 148 + 149 +))) 102 102 103 -=== 1.3.3 How to configure RS485-LN and parse output commands === 151 +=== **1.3.3 How to configure RS485-LN and parse output commands** === 104 104 105 105 RS485-LN provides two configuration methods: AT COMMAND and DOWNLINK. 106 106 107 -==== via AT COMMAND: ==== 108 108 109 - First,wecanuseAT+CFGDEVto get the return value, and we can also judge whether the input parameters are correct.156 +==== **1.3.3.1 via AT COMMAND:** ==== 110 110 158 +First, we can use **AT+CFGDEV** to get the return value, and we can also judge whether the input parameters are correct. 159 + 160 +((( 111 111 If the configured parameters and commands are incorrect, the return value is not obtained. 162 +))) 112 112 113 -[[image: https://wiki.dragino.com/images/b/bc/AT_COMMAND1.png||height="358" width="456"]]164 +[[image:image-20220527092748-9.png]] 114 114 115 115 AT COMMAND 116 116 117 -AT+DATACUTx : This command defines how to handle the return from AT+COMMANDx, max reture length is 40 bytes. AT+DATACUTx=a,b,c 118 118 119 -a: length for the return of AT+COMMAND 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 +))) 120 120 121 - b:1:grab valid valueby byte,max6 bytes.2: grab valid valueby bytes section,max 3 sections.174 +a: length for the return of AT+COMMAND 122 122 123 - c: definethepositionfor valid value.176 +b: 1: grab valid value by byte, max 6 bytes; 2: grab valid value by bytes section, max 3 sections. 124 124 125 - [[image:https://wiki.dragino.com/images/7/7d/AT_COMMAND2.png||height="278" width="477"]]178 +c: define the position for valid value. 126 126 180 +[[image:image-20220527092936-10.png]] 181 + 127 127 AT COMMAND 128 128 184 + 185 + 129 129 PAYLOAD is available after the valid value is intercepted. 130 130 131 -[[image:https://wiki.dragino.com/images/3/3a/AT_COMMAND4.png||height="219" width="576"]] 132 132 189 +[[image:image-20220527093059-11.png]] 190 + 133 133 AT COMMAND 134 134 193 + 194 + 135 135 You can get configured PAYLOAD on TTN. 136 136 137 -[[image: https://wiki.dragino.com/images/thumb/c/c2/AT_COMMAND3.png/600px-AT_COMMAND3.png||height="138" width="600"]]197 +[[image:image-20220527093133-12.png]] 138 138 199 +((( 139 139 AT COMMAND 201 +))) 140 140 141 -Example: CMD1:Read current data with MODBUS command. address:0x03 AT+COMMAND1= 01 03 00 03 00 01,1 203 +((( 204 + 205 +))) 142 142 207 +((( 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 +((( 143 143 RETURN1:01 03 02 00 02 39 85 00 00(return data) 215 +))) 144 144 217 +((( 145 145 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. 146 146 220 + 221 +))) 222 + 223 +((( 147 147 CMD2:Read voltage data with MODBUS command. address:0x00 AT+COMMAND2= 01 03 00 00 00 01,1 225 +))) 148 148 227 +((( 149 149 RETURN2:01 03 02 08 DC BE 1D(return data) 229 +))) 150 150 231 +((( 151 151 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. 152 152 234 + 235 +))) 236 + 237 +((( 153 153 CMD3:Read total active energy data with MODBUS command. address:0x0031 AT+COMMAND3= 01 03 00 31 00 02,1 239 +))) 154 154 241 +((( 155 155 RETURN3:01 03 04 00 00 00 44 FA 00(return data) 243 +))) 156 156 245 +((( 157 157 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 +))) 158 158 249 +((( 159 159 Payload:01 00 02 39 85 08 DC 00 00 00 44 251 +))) 160 160 161 -[[image: https://wiki.dragino.com/images/thumb/9/9b/AT_COMMAND10.png/600px-AT_COMMAND10.png||height="278" width="600"]]253 +[[image:image-20220527093204-13.png]] 162 162 163 163 AT COMMAND 164 164 165 -01 is device address,00 02 is the current, 08 DC is the voltage,00 00 00 44 is the total active energy. 166 166 167 - [[~[~[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]]258 +(% 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.** 168 168 260 + 261 + 262 +[[image:image-20220527093251-14.png]] 263 + 169 169 AT COMMAND 170 170 171 -==== 1.3.3.1 via LoRaWAN DOWNLINK ==== 172 172 173 - [[image:https://wiki.dragino.com/images/thumb/f/fc/DOWNLINK_METER1.png/600px-DOWNLINK_METER1.png||height="423"width="600"]]267 +==== **1.3.3.2 via LoRaWAN DOWNLINK** ==== 174 174 269 +[[image:image-20220527093358-15.png]] 270 + 271 +((( 175 175 DOWNLINK 273 +))) 176 176 177 -Type Code 0xAF 275 +((( 276 + 277 +))) 178 178 279 +((( 280 +(% style="color:#4f81bd" %)**Type Code 0xAF** 281 +))) 282 + 283 +((( 284 +(% class="box infomessage" %) 285 +((( 179 179 0xAF downlink command can be used to set AT+COMMANDx or AT+DATACUTx. 287 +))) 288 +))) 180 180 290 +((( 181 181 Note: if user use AT+COMMANDx to add a new command, he also need to send AT+DATACUTx downlink. 292 +))) 182 182 294 +((( 183 183 Format: AF MM NN LL XX XX XX XX YY 296 +))) 184 184 298 +((( 185 185 Where: 300 +))) 186 186 302 +((( 187 187 MM: the ATCOMMAND or AT+DATACUT to be set. Value from 01 ~~ 0F, 304 +))) 188 188 306 +((( 189 189 NN: 0: no CRC; 1: add CRC-16/MODBUS ; 2: set the AT+DATACUT value. 308 +))) 190 190 310 +((( 191 191 LL: The length of AT+COMMAND or AT+DATACUT command 312 +))) 192 192 314 +((( 193 193 XX XX XX XX: AT+COMMAND or AT+DATACUT command 316 +))) 194 194 318 +((( 195 195 YY: If YY=0, RS485-LN will execute the downlink command without uplink; if YY=1, RS485-LN 320 +))) 196 196 322 +((( 197 197 will execute an uplink after got this command. 324 +))) 198 198 199 -Example: 326 +((( 327 + 200 200 201 -AF 03 01 06 0A 05 00 04 00 01 00: Same as AT+COMMAND3=0A 05 00 04 00 01,1 329 +(% style="color:#4f81bd" %)**Example:** 330 +))) 202 202 203 -[[image:https://wiki.dragino.com/images/thumb/4/45/DOWNLINK_METER2.png/600px-DOWNLINK_METER2.png||height="208" width="600"]] 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 +))) 204 204 336 +[[image:image-20220527093430-16.png]] 337 + 205 205 DOWNLINK 206 206 207 -[[~[~[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]] 208 208 341 + 342 +[[image:image-20220527093508-17.png]] 343 + 209 209 DOWNLINK 210 210 211 -[[image:https://wiki.dragino.com/images/thumb/2/27/DOWNLINK_METER4.png/600px-DOWNLINK_METER4.png||height="210" width="600"]] 212 212 347 + 348 +[[image:image-20220527093530-18.png]] 349 + 213 213 DOWNLINK 214 214 215 -[[~[~[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]] 216 216 353 + 354 +[[image:image-20220527093607-19.png]] 355 + 217 217 DOWNLINK 218 218 219 -[[image:https://wiki.dragino.com/images/thumb/a/a2/DOWNLINK_METER6.png/600px-DOWNLINK_METER6.png||height="365" width="600"]] 220 220 359 + 360 +[[image:image-20220527093628-20.png]] 361 + 221 221 DOWNLINK 222 222 223 223 224 -=== 1.3.4 How to configure and output commands for RS485 to USB === 365 +=== **1.3.4 How to configure and output commands for RS485 to USB** === 225 225 367 +((( 226 226 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. 369 +))) 227 227 371 +((( 228 228 First, connect the A+ and A- of the USB to the 485 A and 485 B of the energy meter. 373 +))) 229 229 375 +((( 230 230 Open the serial port debugging, set the send and receive to HEX. 377 +))) 231 231 379 +((( 232 232 Baud rate: 9600 381 +))) 233 233 383 +((( 234 234 check digit: Even 385 +))) 235 235 236 -[[image: https://wiki.dragino.com/images/thumb/8/8f/Usb_meter2.jpg/600px-Usb_meter2.jpg||height="800" width="600"]]387 +[[image:image-20220527093708-21.png]] 237 237 238 238 USB 239 239 240 -[[image:https://wiki.dragino.com/images/thumb/6/62/Usb_meter1.jpg/600px-Usb_meter1.jpg||height="800" width="600"]] 241 241 392 + 393 +[[image:image-20220527093747-22.png]] 394 + 242 242 USB 243 243 397 + 398 + 399 +((( 244 244 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. 401 +))) 245 245 246 -Example:input:01 03 00 31 00 02 95 c4 403 +((( 404 +(% style="color:#4f81bd" %)**Example:** (%%)input:01 03 00 31 00 02 95 c4 405 +))) 247 247 248 -{{{ output:01 03 04 00 00 00 42 7A 02 249 -}}} 407 +((( 408 + output:01 03 04 00 00 00 42 7A 02 409 +))) 250 250 251 -[[image: https://wiki.dragino.com/images/thumb/b/b3/Usb_meter3.jpg/600px-Usb_meter3.jpg||height="466" width="600"]]411 +[[image:image-20220527093821-23.png]] 252 252 253 253 USB 254 254 255 -=== 1.3.5 How to configure multiple devices and modify device addresses === 256 256 416 +=== **1.3.5 How to configure multiple devices and modify device addresses** === 417 + 257 257 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. 258 258 420 +((( 421 +((( 259 259 Set the device address according to the parameters in the appendix of the MODBUS communication protocol. 423 +))) 424 +))) 260 260 261 -[[image: https://wiki.dragino.com/images/thumb/1/1f/Double_meter3.png/600px-Double_meter3.png||alt="Double meter3.png" height="83" width="600"]]426 +[[image:image-20220601142044-1.png]] 262 262 263 -Example:These two meters are examples of setting parameters and device addresses. 264 264 265 - [[image:https://wiki.dragino.com/images/thumb/e/ee/Double_meter1.jpg/600px-Double_meter1.jpg||alt="Doublemeter1.jpg"height="800"width="600"]]429 +**Example**:These two meters are examples of setting parameters and device addresses. 266 266 267 -[[image: https://wiki.dragino.com/images/thumb/7/72/Double_meter2.jpg/600px-Double_meter2.jpg||alt="Double meter2.jpg" height="800" width="600"]]431 +[[image:image-20220527093950-25.png]] 268 268 433 +[[image:image-20220527094028-26.png]] 434 + 435 +((( 436 +((( 269 269 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. 438 +))) 439 +))) 270 270 441 +((( 442 +((( 271 271 We can use AT+CFGDEV to set the device address. 444 +))) 445 +))) 272 272 447 +((( 448 +((( 273 273 We modify the device address 01 of the first energy meter to 02. 450 +))) 451 +))) 274 274 275 -[[image: https://wiki.dragino.com/images/6/6b/Double_meter4.png||alt="Double meter4.png" height="141" width="456"]]453 +[[image:image-20220601142354-2.png]] 276 276 277 -AT+CFGDEV:01 10 00 61 00 01 02 00 02,1 455 +(% class="box infomessage" %) 456 +((( 457 +**AT+CFGDEV:01 10 00 61 00 01 02 00 02,1** 458 +))) 278 278 279 279 * 01:device adaress 280 280 ... ... @@ -296,12 +296,13 @@ 296 296 297 297 Its default device address is 01, and the following are the parameters for configuring two energy meters. 298 298 299 -[[image: https://wiki.dragino.com/images/1/13/Meter11.png||alt="Meter11.png" height="576" width="379"]]480 +[[image:image-20220601142452-3.png]] 300 300 301 -[[image:https://wiki.dragino.com/images/thumb/7/7e/Meter12.png/600px-Meter12.png||alt="Meter12.png" height="262" width="600"]] 302 302 303 - PAYLOAD:0108 DF43 62483 +[[image:image-20220527094224-29.png]] 304 304 485 +**PAYLOAD:01 08 DF 43 62** 486 + 305 305 * 08 DF is the valid value of the meter with device address 02. 306 306 * 43 62 is the valid value of the meter with device address 01. 307 307 ... ... @@ -310,7 +310,7 @@ 310 310 311 311 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: 312 312 313 -[[image: https://wiki.dragino.com/images/thumb/f/fa/RS485_04_2.png/600px-RS485_04_2.png||height="336" width="600"]]495 +[[image:image-20220527094330-30.png]] 314 314 315 315 Connection 316 316 ... ... @@ -325,7 +325,6 @@ 325 325 326 326 * [[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 327 327 328 - 329 329 == 1.6 Example 6:CEM C31 485-T1-MID Energy Meter with RS485-LN == 330 330 331 331 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: ... ... @@ -332,10 +332,9 @@ 332 332 333 333 * [[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 334 334 335 - 336 336 == 1.7 Example 7:Schneider Electric PLC M221 with RS485-BL == 337 337 338 -[[image: https://wiki.dragino.com/images/thumb/9/97/PLC_M221.png/600px-PLC_M221.png||height="353" width="600"]]518 +[[image:image-20220527094556-31.png]] 339 339 340 340 Network Structure 341 341
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